diff --git a/libc/src/__support/CMakeLists.txt b/libc/src/__support/CMakeLists.txt
index 8b702af082fc2..2526d0cd56dba 100644
--- a/libc/src/__support/CMakeLists.txt
+++ b/libc/src/__support/CMakeLists.txt
@@ -77,6 +77,7 @@ add_header_library(
     libc.include.errno
     libc.src.errno.errno
     libc.src.__support.CPP.limits
+    libc.src.__support.common
 )
 
 add_header_library(
@@ -98,6 +99,7 @@ add_header_library(
   DEPENDS
     libc.src.__support.CPP.type_traits
     libc.src.__support.FPUtil.fp_bits
+    libc.src.__support.common
 )
 
 add_header_library(
@@ -112,6 +114,7 @@ add_header_library(
   str_to_float
   HDRS
     str_to_float.h
+    detailed_powers_of_ten.h
   DEPENDS
     .ctype_utils
     .high_precision_decimal
@@ -121,6 +124,7 @@ add_header_library(
     libc.src.__support.CPP.limits
     libc.src.__support.FPUtil.fp_bits
     libc.src.__support.builtin_wrappers
+    libc.src.__support.common
     libc.src.errno.errno
 )
 
diff --git a/libc/src/__support/CPP/bitset.h b/libc/src/__support/CPP/bitset.h
index 534985661c4ce..d3fc0eeda83a6 100644
--- a/libc/src/__support/CPP/bitset.h
+++ b/libc/src/__support/CPP/bitset.h
@@ -78,7 +78,7 @@ template <size_t NumberOfBits> struct bitset {
   static constexpr size_t NUMBER_OF_UNITS =
       (NumberOfBits + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
 
-  static inline size_t mask(size_t Index) {
+  static constexpr size_t mask(size_t Index) {
     return size_t{1} << (Index % BITS_PER_UNIT);
   }
   size_t Data[NUMBER_OF_UNITS] = {0};
diff --git a/libc/src/__support/FPUtil/BasicOperations.h b/libc/src/__support/FPUtil/BasicOperations.h
index 353a17e6e1e04..7f735656736ac 100644
--- a/libc/src/__support/FPUtil/BasicOperations.h
+++ b/libc/src/__support/FPUtil/BasicOperations.h
@@ -12,19 +12,20 @@
 #include "FPBits.h"
 
 #include "src/__support/CPP/type_traits.h"
+#include "src/__support/common.h"
 
 namespace __llvm_libc {
 namespace fputil {
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T abs(T x) {
+LIBC_INLINE T abs(T x) {
   FPBits<T> bits(x);
   bits.set_sign(0);
   return T(bits);
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T fmin(T x, T y) {
+LIBC_INLINE T fmin(T x, T y) {
   FPBits<T> bitx(x), bity(y);
 
   if (bitx.is_nan()) {
@@ -42,7 +43,7 @@ static inline T fmin(T x, T y) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T fmax(T x, T y) {
+LIBC_INLINE T fmax(T x, T y) {
   FPBits<T> bitx(x), bity(y);
 
   if (bitx.is_nan()) {
@@ -60,7 +61,7 @@ static inline T fmax(T x, T y) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T fdim(T x, T y) {
+LIBC_INLINE T fdim(T x, T y) {
   FPBits<T> bitx(x), bity(y);
 
   if (bitx.is_nan()) {
diff --git a/libc/src/__support/FPUtil/CMakeLists.txt b/libc/src/__support/FPUtil/CMakeLists.txt
index 448a1549a9715..84e5346a175ae 100644
--- a/libc/src/__support/FPUtil/CMakeLists.txt
+++ b/libc/src/__support/FPUtil/CMakeLists.txt
@@ -46,6 +46,7 @@ add_header_library(
     .fp_bits
     .fenv_impl
     libc.src.__support.CPP.type_traits
+    libc.src.__support.common
     libc.include.math
     libc.include.errno
     libc.src.errno.errno
@@ -71,6 +72,7 @@ add_header_library(
     .platform_defs
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.type_traits
+    libc.src.__support.common
     libc.include.math
     libc.include.errno
     libc.src.errno.errno
@@ -83,6 +85,7 @@ add_header_library(
   DEPENDS
     .fp_bits
     libc.src.__support.CPP.type_traits
+    libc.src.__support.common
 )
 
 add_header_library(
@@ -94,6 +97,7 @@ add_header_library(
     .manipulation_functions
     .normal_float
     libc.src.__support.CPP.type_traits
+    libc.src.__support.common
 )
 
 add_header_library(
@@ -118,6 +122,7 @@ add_header_library(
     libc.src.__support.builtin_wrappers
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.type_traits
+    libc.src.__support.common
     libc.src.__support.uint128
 )
 
@@ -166,6 +171,7 @@ add_header_library(
     PolyEval.h
   DEPENDS
     .multiply_add
+    libc.src.__support.common
 )
 
 add_header_library(
diff --git a/libc/src/__support/FPUtil/DivisionAndRemainderOperations.h b/libc/src/__support/FPUtil/DivisionAndRemainderOperations.h
index 6a55525108d68..7b9d7fa49d7ac 100644
--- a/libc/src/__support/FPUtil/DivisionAndRemainderOperations.h
+++ b/libc/src/__support/FPUtil/DivisionAndRemainderOperations.h
@@ -14,6 +14,7 @@
 #include "NormalFloat.h"
 
 #include "src/__support/CPP/type_traits.h"
+#include "src/__support/common.h"
 
 namespace __llvm_libc {
 namespace fputil {
@@ -23,7 +24,7 @@ static constexpr int QUOTIENT_LSB_BITS = 3;
 // The implementation is a bit-by-bit algorithm which uses integer division
 // to evaluate the quotient and remainder.
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T remquo(T x, T y, int &q) {
+LIBC_INLINE T remquo(T x, T y, int &q) {
   FPBits<T> xbits(x), ybits(y);
   if (xbits.is_nan())
     return x;
diff --git a/libc/src/__support/FPUtil/FEnvImpl.h b/libc/src/__support/FPUtil/FEnvImpl.h
index f507b304518f9..85818a67dfa05 100644
--- a/libc/src/__support/FPUtil/FEnvImpl.h
+++ b/libc/src/__support/FPUtil/FEnvImpl.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_FENVIMPL_H
 
 #include "src/__support/architectures.h"
+#include "src/__support/common.h"
 
 #if defined(LLVM_LIBC_ARCH_AARCH64)
 #if defined(__APPLE__)
@@ -27,21 +28,21 @@ namespace fputil {
 
 // All dummy functions silently succeed.
 
-static inline int clear_except(int) { return 0; }
+LIBC_INLINE int clear_except(int) { return 0; }
 
-static inline int test_except(int) { return 0; }
+LIBC_INLINE int test_except(int) { return 0; }
 
-static inline int set_except(int) { return 0; }
+LIBC_INLINE int set_except(int) { return 0; }
 
-static inline int raise_except(int) { return 0; }
+LIBC_INLINE int raise_except(int) { return 0; }
 
-static inline int get_round() { return FE_TONEAREST; }
+LIBC_INLINE int get_round() { return FE_TONEAREST; }
 
-static inline int set_round(int) { return 0; }
+LIBC_INLINE int set_round(int) { return 0; }
 
-static inline int get_env(fenv_t *) { return 0; }
+LIBC_INLINE int get_env(fenv_t *) { return 0; }
 
-static inline int set_env(const fenv_t *) { return 0; }
+LIBC_INLINE int set_env(const fenv_t *) { return 0; }
 
 } // namespace fputil
 } // namespace __llvm_libc
diff --git a/libc/src/__support/FPUtil/FMA.h b/libc/src/__support/FPUtil/FMA.h
index 82db04e8f04ce..f14a978f53e06 100644
--- a/libc/src/__support/FPUtil/FMA.h
+++ b/libc/src/__support/FPUtil/FMA.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_FMA_H
 
 #include "src/__support/architectures.h"
+#include "src/__support/common.h"
 
 #if defined(LIBC_TARGET_HAS_FMA)
 
@@ -27,7 +28,7 @@
 namespace __llvm_libc {
 namespace fputil {
 
-template <typename T> static inline T fma(T x, T y, T z) {
+template <typename T> LIBC_INLINE T fma(T x, T y, T z) {
   return generic::fma(x, y, z);
 }
 
diff --git a/libc/src/__support/FPUtil/Hypot.h b/libc/src/__support/FPUtil/Hypot.h
index de22691f7de79..86817b7496541 100644
--- a/libc/src/__support/FPUtil/Hypot.h
+++ b/libc/src/__support/FPUtil/Hypot.h
@@ -16,6 +16,7 @@
 #include "src/__support/CPP/type_traits.h"
 #include "src/__support/UInt128.h"
 #include "src/__support/builtin_wrappers.h"
+#include "src/__support/common.h"
 
 namespace __llvm_libc {
 namespace fputil {
@@ -23,7 +24,7 @@ namespace fputil {
 namespace internal {
 
 template <typename T>
-static inline T find_leading_one(T mant, int &shift_length) {
+LIBC_INLINE T find_leading_one(T mant, int &shift_length) {
   shift_length = 0;
   if (mant > 0) {
     shift_length = (sizeof(mant) * 8) - 1 - unsafe_clz(mant);
@@ -98,7 +99,7 @@ template <> struct DoubleLength<uint64_t> {
 //   - HYPOT(x, y) is NaN if x or y is NaN.
 //
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T hypot(T x, T y) {
+LIBC_INLINE T hypot(T x, T y) {
   using FPBits_t = FPBits<T>;
   using UIntType = typename FPBits<T>::UIntType;
   using DUIntType = typename DoubleLength<UIntType>::Type;
diff --git a/libc/src/__support/FPUtil/ManipulationFunctions.h b/libc/src/__support/FPUtil/ManipulationFunctions.h
index 60c0e4887cd8d..946d35c03b1ce 100644
--- a/libc/src/__support/FPUtil/ManipulationFunctions.h
+++ b/libc/src/__support/FPUtil/ManipulationFunctions.h
@@ -16,6 +16,7 @@
 
 #include "src/__support/CPP/bit.h"
 #include "src/__support/CPP/type_traits.h"
+#include "src/__support/common.h"
 
 #include <limits.h>
 #include <math.h>
@@ -24,7 +25,7 @@ namespace __llvm_libc {
 namespace fputil {
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T frexp(T x, int &exp) {
+LIBC_INLINE T frexp(T x, int &exp) {
   FPBits<T> bits(x);
   if (bits.is_inf_or_nan())
     return x;
@@ -40,7 +41,7 @@ static inline T frexp(T x, int &exp) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T modf(T x, T &iptr) {
+LIBC_INLINE T modf(T x, T &iptr) {
   FPBits<T> bits(x);
   if (bits.is_zero() || bits.is_nan()) {
     iptr = x;
@@ -61,14 +62,14 @@ static inline T modf(T x, T &iptr) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T copysign(T x, T y) {
+LIBC_INLINE T copysign(T x, T y) {
   FPBits<T> xbits(x);
   xbits.set_sign(FPBits<T>(y).get_sign());
   return T(xbits);
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline int ilogb(T x) {
+LIBC_INLINE int ilogb(T x) {
   // TODO: Raise appropriate floating point exceptions and set errno to the
   // an appropriate error value wherever relevant.
   FPBits<T> bits(x);
@@ -96,7 +97,7 @@ static inline int ilogb(T x) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T logb(T x) {
+LIBC_INLINE T logb(T x) {
   FPBits<T> bits(x);
   if (bits.is_zero()) {
     // TODO(Floating point exception): Raise div-by-zero exception.
@@ -114,7 +115,7 @@ static inline T logb(T x) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T ldexp(T x, int exp) {
+LIBC_INLINE T ldexp(T x, int exp) {
   FPBits<T> bits(x);
   if (bits.is_zero() || bits.is_inf_or_nan() || exp == 0)
     return x;
@@ -140,7 +141,7 @@ static inline T ldexp(T x, int exp) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T nextafter(T from, T to) {
+LIBC_INLINE T nextafter(T from, T to) {
   FPBits<T> from_bits(from);
   if (from_bits.is_nan())
     return from;
diff --git a/libc/src/__support/FPUtil/NearestIntegerOperations.h b/libc/src/__support/FPUtil/NearestIntegerOperations.h
index 3a9d0d121c6a9..968e7d499ae27 100644
--- a/libc/src/__support/FPUtil/NearestIntegerOperations.h
+++ b/libc/src/__support/FPUtil/NearestIntegerOperations.h
@@ -13,6 +13,7 @@
 #include "FPBits.h"
 
 #include "src/__support/CPP/type_traits.h"
+#include "src/__support/common.h"
 
 #include <errno.h>
 #include <math.h>
@@ -21,7 +22,7 @@ namespace __llvm_libc {
 namespace fputil {
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T trunc(T x) {
+LIBC_INLINE T trunc(T x) {
   FPBits<T> bits(x);
 
   // If x is infinity or NaN, return it.
@@ -52,7 +53,7 @@ static inline T trunc(T x) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T ceil(T x) {
+LIBC_INLINE T ceil(T x) {
   FPBits<T> bits(x);
 
   // If x is infinity NaN or zero, return it.
@@ -90,7 +91,7 @@ static inline T ceil(T x) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T floor(T x) {
+LIBC_INLINE T floor(T x) {
   FPBits<T> bits(x);
   if (bits.get_sign()) {
     return -ceil(-x);
@@ -100,7 +101,7 @@ static inline T floor(T x) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T round(T x) {
+LIBC_INLINE T round(T x) {
   using UIntType = typename FPBits<T>::UIntType;
   FPBits<T> bits(x);
 
@@ -151,7 +152,7 @@ static inline T round(T x) {
 }
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
-static inline T round_using_current_rounding_mode(T x) {
+LIBC_INLINE T round_using_current_rounding_mode(T x) {
   using UIntType = typename FPBits<T>::UIntType;
   FPBits<T> bits(x);
 
@@ -232,7 +233,7 @@ namespace internal {
 template <typename F, typename I,
           cpp::enable_if_t<cpp::is_floating_point_v<F> && cpp::is_integral_v<I>,
                            int> = 0>
-static inline I rounded_float_to_signed_integer(F x) {
+LIBC_INLINE I rounded_float_to_signed_integer(F x) {
   constexpr I INTEGER_MIN = (I(1) << (sizeof(I) * 8 - 1));
   constexpr I INTEGER_MAX = -(INTEGER_MIN + 1);
   FPBits<F> bits(x);
@@ -273,14 +274,14 @@ static inline I rounded_float_to_signed_integer(F x) {
 template <typename F, typename I,
           cpp::enable_if_t<cpp::is_floating_point_v<F> && cpp::is_integral_v<I>,
                            int> = 0>
-static inline I round_to_signed_integer(F x) {
+LIBC_INLINE I round_to_signed_integer(F x) {
   return internal::rounded_float_to_signed_integer<F, I>(round(x));
 }
 
 template <typename F, typename I,
           cpp::enable_if_t<cpp::is_floating_point_v<F> && cpp::is_integral_v<I>,
                            int> = 0>
-static inline I round_to_signed_integer_using_current_rounding_mode(F x) {
+LIBC_INLINE I round_to_signed_integer_using_current_rounding_mode(F x) {
   return internal::rounded_float_to_signed_integer<F, I>(
       round_using_current_rounding_mode(x));
 }
diff --git a/libc/src/__support/FPUtil/PolyEval.h b/libc/src/__support/FPUtil/PolyEval.h
index b6faa0f897880..43b8ff4e8e1f6 100644
--- a/libc/src/__support/FPUtil/PolyEval.h
+++ b/libc/src/__support/FPUtil/PolyEval.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_POLYEVAL_H
 
 #include "multiply_add.h"
+#include "src/__support/common.h"
 
 // Evaluate polynomial using Horner's Scheme:
 // With polyeval(x, a_0, a_1, ..., a_n) = a_n * x^n + ... + a_1 * x + a_0, we
@@ -21,10 +22,10 @@
 namespace __llvm_libc {
 namespace fputil {
 
-template <typename T> static inline T polyeval(T, T a0) { return a0; }
+template <typename T> LIBC_INLINE T polyeval(T, T a0) { return a0; }
 
 template <typename T, typename... Ts>
-static inline T polyeval(T x, T a0, Ts... a) {
+LIBC_INLINE T polyeval(T x, T a0, Ts... a) {
   return multiply_add(x, polyeval(x, a...), a0);
 }
 
diff --git a/libc/src/__support/FPUtil/aarch64/FEnvImpl.h b/libc/src/__support/FPUtil/aarch64/FEnvImpl.h
index 22c3513360cbf..213966ab98f4f 100644
--- a/libc/src/__support/FPUtil/aarch64/FEnvImpl.h
+++ b/libc/src/__support/FPUtil/aarch64/FEnvImpl.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_AARCH64_FENVIMPL_H
 
 #include "src/__support/architectures.h"
+#include "src/__support/common.h"
 
 #if !defined(LLVM_LIBC_ARCH_AARCH64) || defined(__APPLE__)
 #error "Invalid include"
@@ -50,7 +51,7 @@ struct FEnv {
   static constexpr uint32_t ExceptionStatusFlagsBitPosition = 0;
   static constexpr uint32_t ExceptionControlFlagsBitPosition = 8;
 
-  static inline uint32_t getStatusValueForExcept(int excepts) {
+  LIBC_INLINE uint32_t getStatusValueForExcept(int excepts) {
     return (excepts & FE_INVALID ? INVALID : 0) |
            (excepts & FE_DIVBYZERO ? DIVBYZERO : 0) |
            (excepts & FE_OVERFLOW ? OVERFLOW : 0) |
@@ -58,7 +59,7 @@ struct FEnv {
            (excepts & FE_INEXACT ? INEXACT : 0);
   }
 
-  static inline int exceptionStatusToMacro(uint32_t status) {
+  LIBC_INLINE int exceptionStatusToMacro(uint32_t status) {
     return (status & INVALID ? FE_INVALID : 0) |
            (status & DIVBYZERO ? FE_DIVBYZERO : 0) |
            (status & OVERFLOW ? FE_OVERFLOW : 0) |
@@ -75,7 +76,7 @@ struct FEnv {
   static void writeStatusWord(uint32_t fpsr) { __arm_wsr("fpsr", fpsr); }
 };
 
-static inline int enable_except(int excepts) {
+LIBC_INLINE int enable_except(int excepts) {
   uint32_t newExcepts = FEnv::getStatusValueForExcept(excepts);
   uint32_t controlWord = FEnv::getControlWord();
   int oldExcepts =
@@ -85,7 +86,7 @@ static inline int enable_except(int excepts) {
   return FEnv::exceptionStatusToMacro(oldExcepts);
 }
 
-static inline int disable_except(int excepts) {
+LIBC_INLINE int disable_except(int excepts) {
   uint32_t disabledExcepts = FEnv::getStatusValueForExcept(excepts);
   uint32_t controlWord = FEnv::getControlWord();
   int oldExcepts =
@@ -95,14 +96,14 @@ static inline int disable_except(int excepts) {
   return FEnv::exceptionStatusToMacro(oldExcepts);
 }
 
-static inline int get_except() {
+LIBC_INLINE int get_except() {
   uint32_t controlWord = FEnv::getControlWord();
   int enabledExcepts =
       (controlWord >> FEnv::ExceptionControlFlagsBitPosition) & 0x1F;
   return FEnv::exceptionStatusToMacro(enabledExcepts);
 }
 
-static inline int clear_except(int excepts) {
+LIBC_INLINE int clear_except(int excepts) {
   uint32_t statusWord = FEnv::getStatusWord();
   uint32_t toClear = FEnv::getStatusValueForExcept(excepts);
   statusWord &= ~(toClear << FEnv::ExceptionStatusFlagsBitPosition);
@@ -110,14 +111,14 @@ static inline int clear_except(int excepts) {
   return 0;
 }
 
-static inline int test_except(int excepts) {
+LIBC_INLINE int test_except(int excepts) {
   uint32_t toTest = FEnv::getStatusValueForExcept(excepts);
   uint32_t statusWord = FEnv::getStatusWord();
   return FEnv::exceptionStatusToMacro(
       (statusWord >> FEnv::ExceptionStatusFlagsBitPosition) & toTest);
 }
 
-static inline int set_except(int excepts) {
+LIBC_INLINE int set_except(int excepts) {
   uint32_t statusWord = FEnv::getStatusWord();
   uint32_t statusValue = FEnv::getStatusValueForExcept(excepts);
   statusWord |= (statusValue << FEnv::ExceptionStatusFlagsBitPosition);
@@ -125,7 +126,7 @@ static inline int set_except(int excepts) {
   return 0;
 }
 
-static inline int raise_except(int excepts) {
+LIBC_INLINE int raise_except(int excepts) {
   float zero = 0.0f;
   float one = 1.0f;
   float largeValue = float(FPBits<float>(FPBits<float>::MAX_NORMAL));
@@ -185,7 +186,7 @@ static inline int raise_except(int excepts) {
   return result;
 }
 
-static inline int get_round() {
+LIBC_INLINE int get_round() {
   uint32_t roundingMode =
       (FEnv::getControlWord() >> FEnv::RoundingControlBitPosition) & 0x3;
   switch (roundingMode) {
@@ -202,7 +203,7 @@ static inline int get_round() {
   }
 }
 
-static inline int set_round(int mode) {
+LIBC_INLINE int set_round(int mode) {
   uint16_t bitValue;
   switch (mode) {
   case FE_TONEAREST:
@@ -229,14 +230,14 @@ static inline int set_round(int mode) {
   return 0;
 }
 
-static inline int get_env(fenv_t *envp) {
+LIBC_INLINE int get_env(fenv_t *envp) {
   FEnv::FPState *state = reinterpret_cast<FEnv::FPState *>(envp);
   state->ControlWord = FEnv::getControlWord();
   state->StatusWord = FEnv::getStatusWord();
   return 0;
 }
 
-static inline int set_env(const fenv_t *envp) {
+LIBC_INLINE int set_env(const fenv_t *envp) {
   if (envp == FE_DFL_ENV) {
     // Default status and control words bits are all zeros so we just
     // write zeros.
diff --git a/libc/src/__support/FPUtil/aarch64/fenv_darwin_impl.h b/libc/src/__support/FPUtil/aarch64/fenv_darwin_impl.h
index 5cc096112061a..a916dc54f3a54 100644
--- a/libc/src/__support/FPUtil/aarch64/fenv_darwin_impl.h
+++ b/libc/src/__support/FPUtil/aarch64/fenv_darwin_impl.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_AARCH64_FENV_DARWIN_IMPL_H
 
 #include "src/__support/architectures.h"
+#include "src/__support/common.h"
 
 #if !defined(LLVM_LIBC_ARCH_AARCH64) || !defined(__APPLE__)
 #error "Invalid include"
@@ -60,7 +61,7 @@ struct FEnv {
   // __fpcr_flush_to_zero bit in the FPCR register.  This control bit is
   // located in a different place from FE_FLUSHTOZERO status bit relative to
   // the other exceptions.
-  static inline uint32_t exception_value_from_status(int status) {
+  LIBC_INLINE uint32_t exception_value_from_status(int status) {
     return (status & FE_INVALID ? EX_INVALID : 0) |
            (status & FE_DIVBYZERO ? EX_DIVBYZERO : 0) |
            (status & FE_OVERFLOW ? EX_OVERFLOW : 0) |
@@ -69,7 +70,7 @@ struct FEnv {
            (status & FE_FLUSHTOZERO ? EX_FLUSHTOZERO : 0);
   }
 
-  static inline uint32_t exception_value_from_control(int control) {
+  LIBC_INLINE uint32_t exception_value_from_control(int control) {
     return (control & __fpcr_trap_invalid ? EX_INVALID : 0) |
            (control & __fpcr_trap_divbyzero ? EX_DIVBYZERO : 0) |
            (control & __fpcr_trap_overflow ? EX_OVERFLOW : 0) |
@@ -78,7 +79,7 @@ struct FEnv {
            (control & __fpcr_flush_to_zero ? EX_FLUSHTOZERO : 0);
   }
 
-  static inline int exception_value_to_status(uint32_t excepts) {
+  LIBC_INLINE int exception_value_to_status(uint32_t excepts) {
     return (excepts & EX_INVALID ? FE_INVALID : 0) |
            (excepts & EX_DIVBYZERO ? FE_DIVBYZERO : 0) |
            (excepts & EX_OVERFLOW ? FE_OVERFLOW : 0) |
@@ -87,7 +88,7 @@ struct FEnv {
            (excepts & EX_FLUSHTOZERO ? FE_FLUSHTOZERO : 0);
   }
 
-  static inline int exception_value_to_control(uint32_t excepts) {
+  LIBC_INLINE int exception_value_to_control(uint32_t excepts) {
     return (excepts & EX_INVALID ? __fpcr_trap_invalid : 0) |
            (excepts & EX_DIVBYZERO ? __fpcr_trap_divbyzero : 0) |
            (excepts & EX_OVERFLOW ? __fpcr_trap_overflow : 0) |
@@ -105,7 +106,7 @@ struct FEnv {
   static void set_status_word(uint32_t fpsr) { __arm_wsr("fpsr", fpsr); }
 };
 
-static inline int enable_except(int excepts) {
+LIBC_INLINE int enable_except(int excepts) {
   uint32_t new_excepts = FEnv::exception_value_from_status(excepts);
   uint32_t control_word = FEnv::get_control_word();
   uint32_t old_excepts = FEnv::exception_value_from_control(control_word);
@@ -116,7 +117,7 @@ static inline int enable_except(int excepts) {
   return FEnv::exception_value_to_status(old_excepts);
 }
 
-static inline int disable_except(int excepts) {
+LIBC_INLINE int disable_except(int excepts) {
   uint32_t disabled_excepts = FEnv::exception_value_from_status(excepts);
   uint32_t control_word = FEnv::get_control_word();
   uint32_t old_excepts = FEnv::exception_value_from_control(control_word);
@@ -125,13 +126,13 @@ static inline int disable_except(int excepts) {
   return FEnv::exception_value_to_status(old_excepts);
 }
 
-static inline int get_except() {
+LIBC_INLINE int get_except() {
   uint32_t control_word = FEnv::get_control_word();
   uint32_t enabled_excepts = FEnv::exception_value_from_control(control_word);
   return FEnv::exception_value_to_status(enabled_excepts);
 }
 
-static inline int clear_except(int excepts) {
+LIBC_INLINE int clear_except(int excepts) {
   uint32_t status_word = FEnv::get_status_word();
   uint32_t except_value = FEnv::exception_value_from_status(excepts);
   status_word &= ~FEnv::exception_value_to_status(except_value);
@@ -139,13 +140,13 @@ static inline int clear_except(int excepts) {
   return 0;
 }
 
-static inline int test_except(int excepts) {
+LIBC_INLINE int test_except(int excepts) {
   uint32_t statusWord = FEnv::get_status_word();
   uint32_t ex_value = FEnv::exception_value_from_status(excepts);
   return statusWord & FEnv::exception_value_to_status(ex_value);
 }
 
-static inline int set_except(int excepts) {
+LIBC_INLINE int set_except(int excepts) {
   uint32_t status_word = FEnv::get_status_word();
   uint32_t new_exceptions = FEnv::exception_value_from_status(excepts);
   status_word |= FEnv::exception_value_to_status(new_exceptions);
@@ -153,7 +154,7 @@ static inline int set_except(int excepts) {
   return 0;
 }
 
-static inline int raise_except(int excepts) {
+LIBC_INLINE int raise_except(int excepts) {
   float zero = 0.0f;
   float one = 1.0f;
   float large_value = float(FPBits<float>(FPBits<float>::MAX_NORMAL));
@@ -212,7 +213,7 @@ static inline int raise_except(int excepts) {
   return result;
 }
 
-static inline int get_round() {
+LIBC_INLINE int get_round() {
   uint32_t rounding_mode =
       (FEnv::get_control_word() >> FEnv::ROUNDING_CONTROL_BIT_POSITION) & 0x3;
   switch (rounding_mode) {
@@ -229,7 +230,7 @@ static inline int get_round() {
   }
 }
 
-static inline int set_round(int mode) {
+LIBC_INLINE int set_round(int mode) {
   uint16_t bit_value;
   switch (mode) {
   case FE_TONEAREST:
@@ -256,14 +257,14 @@ static inline int set_round(int mode) {
   return 0;
 }
 
-static inline int get_env(fenv_t *envp) {
+LIBC_INLINE int get_env(fenv_t *envp) {
   FEnv::FPState *state = reinterpret_cast<FEnv::FPState *>(envp);
   state->ControlWord = FEnv::get_control_word();
   state->StatusWord = FEnv::get_status_word();
   return 0;
 }
 
-static inline int set_env(const fenv_t *envp) {
+LIBC_INLINE int set_env(const fenv_t *envp) {
   if (envp == FE_DFL_ENV) {
     // Default status and control words bits are all zeros so we just
     // write zeros.
diff --git a/libc/src/__support/FPUtil/aarch64/nearest_integer.h b/libc/src/__support/FPUtil/aarch64/nearest_integer.h
index e6c83e956ccba..1d94e66d0e1dc 100644
--- a/libc/src/__support/FPUtil/aarch64/nearest_integer.h
+++ b/libc/src/__support/FPUtil/aarch64/nearest_integer.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_AARCH64_NEAREST_INTEGER_H
 
 #include "src/__support/architectures.h"
+#include "src/__support/common.h"
 
 #if !defined(LLVM_LIBC_ARCH_AARCH64)
 #error "Invalid include"
@@ -18,13 +19,13 @@
 namespace __llvm_libc {
 namespace fputil {
 
-static inline float nearest_integer(float x) {
+LIBC_INLINE float nearest_integer(float x) {
   float result;
   __asm__ __volatile__("frintn %s0, %s1\n\t" : "=w"(result) : "w"(x));
   return result;
 }
 
-static inline double nearest_integer(double x) {
+LIBC_INLINE double nearest_integer(double x) {
   double result;
   __asm__ __volatile__("frintn %d0, %d1\n\t" : "=w"(result) : "w"(x));
   return result;
diff --git a/libc/src/__support/FPUtil/generic/FMA.h b/libc/src/__support/FPUtil/generic/FMA.h
index da730992fce8f..69868d4e5ba23 100644
--- a/libc/src/__support/FPUtil/generic/FMA.h
+++ b/libc/src/__support/FPUtil/generic/FMA.h
@@ -21,7 +21,7 @@ namespace __llvm_libc {
 namespace fputil {
 namespace generic {
 
-template <typename T> static inline T fma(T x, T y, T z);
+template <typename T> LIBC_INLINE T fma(T x, T y, T z);
 
 // TODO(lntue): Implement fmaf that is correctly rounded to all rounding modes.
 // The implementation below only is only correct for the default rounding mode,
@@ -78,7 +78,7 @@ namespace internal {
 
 // Extract the sticky bits and shift the `mantissa` to the right by
 // `shift_length`.
-static inline bool shift_mantissa(int shift_length, UInt128 &mant) {
+LIBC_INLINE bool shift_mantissa(int shift_length, UInt128 &mant) {
   if (shift_length >= 128) {
     mant = 0;
     return true; // prod_mant is non-zero.
diff --git a/libc/src/__support/FPUtil/generic/FMod.h b/libc/src/__support/FPUtil/generic/FMod.h
index c20bd8950b9d5..e0694ba11b7e4 100644
--- a/libc/src/__support/FPUtil/generic/FMod.h
+++ b/libc/src/__support/FPUtil/generic/FMod.h
@@ -122,7 +122,7 @@ template <typename T> struct FModExceptionalInputHandler {
   static_assert(cpp::is_floating_point_v<T>,
                 "FModCStandardWrapper instantiated with invalid type.");
 
-  static bool PreCheck(T x, T y, T &out) {
+  LIBC_INLINE static bool PreCheck(T x, T y, T &out) {
     using FPB = fputil::FPBits<T>;
     const T quiet_NaN = FPB::build_quiet_nan(0);
     FPB sx(x), sy(y);
@@ -168,8 +168,8 @@ template <typename T> class FModDivisionSimpleHelper {
   using intU_t = typename FPBits<T>::UIntType;
 
 public:
-  inline constexpr static intU_t execute(int exp_diff, int sides_zeroes_count,
-                                         intU_t m_x, intU_t m_y) {
+  LIBC_INLINE constexpr static intU_t
+  execute(int exp_diff, int sides_zeroes_count, intU_t m_x, intU_t m_y) {
     while (exp_diff > sides_zeroes_count) {
       exp_diff -= sides_zeroes_count;
       m_x <<= sides_zeroes_count;
@@ -187,8 +187,8 @@ template <typename T> class FModDivisionInvMultHelper {
   using intU_t = typename FPB::UIntType;
 
 public:
-  inline constexpr static intU_t execute(int exp_diff, int sides_zeroes_count,
-                                         intU_t m_x, intU_t m_y) {
+  LIBC_INLINE constexpr static intU_t
+  execute(int exp_diff, int sides_zeroes_count, intU_t m_x, intU_t m_y) {
     if (exp_diff > sides_zeroes_count) {
       intU_t inv_hy = (cpp::numeric_limits<intU_t>::max() / m_y);
       while (exp_diff > sides_zeroes_count) {
@@ -223,7 +223,7 @@ class FMod {
   using FPB = FPBits<T>;
   using intU_t = typename FPB::UIntType;
 
-  inline static constexpr FPB eval_internal(FPB sx, FPB sy) {
+  LIBC_INLINE static constexpr FPB eval_internal(FPB sx, FPB sy) {
 
     if (likely(sx.uintval() <= sy.uintval())) {
       if (sx.uintval() < sy.uintval())
@@ -300,7 +300,7 @@ class FMod {
   }
 
 public:
-  static inline T eval(T x, T y) {
+  LIBC_INLINE static T eval(T x, T y) {
     if (T out; Wrapper::PreCheck(x, y, out))
       return out;
     FPB sx(x), sy(y);
diff --git a/libc/src/__support/FPUtil/generic/sqrt.h b/libc/src/__support/FPUtil/generic/sqrt.h
index 125d864672bbd..c972c5f40cd59 100644
--- a/libc/src/__support/FPUtil/generic/sqrt.h
+++ b/libc/src/__support/FPUtil/generic/sqrt.h
@@ -34,8 +34,8 @@ template <> struct SpecialLongDouble<long double> {
 #endif // SPECIAL_X86_LONG_DOUBLE
 
 template <typename T>
-static inline void normalize(int &exponent,
-                             typename FPBits<T>::UIntType &mantissa) {
+LIBC_INLINE void normalize(int &exponent,
+                           typename FPBits<T>::UIntType &mantissa) {
   const int shift = unsafe_clz(mantissa) -
                     (8 * sizeof(mantissa) - 1 - MantissaWidth<T>::VALUE);
   exponent -= shift;
@@ -64,7 +64,7 @@ inline void normalize<long double>(int &exponent, UInt128 &mantissa) {
 // Correctly rounded IEEE 754 SQRT for all rounding modes.
 // Shift-and-add algorithm.
 template <typename T>
-static inline cpp::enable_if_t<cpp::is_floating_point_v<T>, T> sqrt(T x) {
+LIBC_INLINE cpp::enable_if_t<cpp::is_floating_point_v<T>, T> sqrt(T x) {
 
   if constexpr (internal::SpecialLongDouble<T>::VALUE) {
     // Special 80-bit long double.
diff --git a/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h b/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h
index cf3b2e4aa8d4f..64fb5e0d8a66c 100644
--- a/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h
+++ b/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h
@@ -29,12 +29,12 @@ inline void normalize(int &exponent, UInt128 &mantissa) {
 
 // if constexpr statement in sqrt.h still requires x86::sqrt to be declared
 // even when it's not used.
-static inline long double sqrt(long double x);
+LIBC_INLINE long double sqrt(long double x);
 
 // Correctly rounded SQRT for all rounding modes.
 // Shift-and-add algorithm.
 #if defined(SPECIAL_X86_LONG_DOUBLE)
-static inline long double sqrt(long double x) {
+LIBC_INLINE long double sqrt(long double x) {
   using UIntType = typename FPBits<long double>::UIntType;
   constexpr UIntType ONE = UIntType(1)
                            << int(MantissaWidth<long double>::VALUE);
diff --git a/libc/src/__support/FPUtil/multiply_add.h b/libc/src/__support/FPUtil/multiply_add.h
index b7889c63871c0..384035e76840c 100644
--- a/libc/src/__support/FPUtil/multiply_add.h
+++ b/libc/src/__support/FPUtil/multiply_add.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_MULTIPLY_ADD_H
 
 #include "src/__support/architectures.h"
+#include "src/__support/common.h"
 
 namespace __llvm_libc {
 namespace fputil {
@@ -18,7 +19,7 @@ namespace fputil {
 //   multiply_add(x, y, z) = x*y + z
 // which uses FMA instructions to speed up if available.
 
-template <typename T> static inline T multiply_add(T x, T y, T z) {
+template <typename T> LIBC_INLINE T multiply_add(T x, T y, T z) {
   return x * y + z;
 }
 
diff --git a/libc/src/__support/FPUtil/nearest_integer.h b/libc/src/__support/FPUtil/nearest_integer.h
index e6377fe9dc602..bf2bf4b797c69 100644
--- a/libc/src/__support/FPUtil/nearest_integer.h
+++ b/libc/src/__support/FPUtil/nearest_integer.h
@@ -26,7 +26,7 @@ namespace fputil {
 // Notice that for AARCH64 and x86-64 with SSE4.2 support, we will use their
 // corresponding rounding instruction instead.  And in those cases, the results
 // are rounded to the nearest integer, tie-to-even.
-static inline float nearest_integer(float x) {
+LIBC_INLINE float nearest_integer(float x) {
   if (x < 0x1p24f && x > -0x1p24f) {
     float r = x < 0 ? (x - 0x1.0p23f) + 0x1.0p23f : (x + 0x1.0p23f) - 0x1.0p23f;
     float diff = x - r;
@@ -42,7 +42,7 @@ static inline float nearest_integer(float x) {
   return x;
 }
 
-static inline double nearest_integer(double x) {
+LIBC_INLINE double nearest_integer(double x) {
   if (x < 0x1p53 && x > -0x1p53) {
     double r = x < 0 ? (x - 0x1.0p52) + 0x1.0p52 : (x + 0x1.0p52) - 0x1.0p52;
     double diff = x - r;
diff --git a/libc/src/__support/FPUtil/x86_64/FEnvImpl.h b/libc/src/__support/FPUtil/x86_64/FEnvImpl.h
index 0f7e2b57a778e..5c30ee35efae3 100644
--- a/libc/src/__support/FPUtil/x86_64/FEnvImpl.h
+++ b/libc/src/__support/FPUtil/x86_64/FEnvImpl.h
@@ -68,7 +68,7 @@ static constexpr uint16_t MXCSR_EXCEPTION_CONTOL_BIT_POISTION = 7;
 
 // Exception flags are individual bits in the corresponding registers.
 // So, we just OR the bit values to get the full set of exceptions.
-static inline uint16_t get_status_value_for_except(int excepts) {
+LIBC_INLINE uint16_t get_status_value_for_except(int excepts) {
   // We will make use of the fact that exception control bits are single
   // bit flags in the control registers.
   return (excepts & FE_INVALID ? ExceptionFlags::INVALID_F : 0) |
@@ -81,7 +81,7 @@ static inline uint16_t get_status_value_for_except(int excepts) {
          (excepts & FE_INEXACT ? ExceptionFlags::INEXACT_F : 0);
 }
 
-static inline int exception_status_to_macro(uint16_t status) {
+LIBC_INLINE int exception_status_to_macro(uint16_t status) {
   return (status & ExceptionFlags::INVALID_F ? FE_INVALID : 0) |
 #ifdef __FE_DENORM
          (status & ExceptionFlags::DENORMAL_F ? __FE_DENORM : 0) |
@@ -101,53 +101,53 @@ struct X87StateDescriptor {
   uint32_t _[5];
 };
 
-static inline uint16_t get_x87_control_word() {
+LIBC_INLINE uint16_t get_x87_control_word() {
   uint16_t w;
   __asm__ __volatile__("fnstcw %0" : "=m"(w)::);
   SANITIZER_MEMORY_INITIALIZED(&w, sizeof(w));
   return w;
 }
 
-static inline void write_x87_control_word(uint16_t w) {
+LIBC_INLINE void write_x87_control_word(uint16_t w) {
   __asm__ __volatile__("fldcw %0" : : "m"(w) :);
 }
 
-static inline uint16_t get_x87_status_word() {
+LIBC_INLINE uint16_t get_x87_status_word() {
   uint16_t w;
   __asm__ __volatile__("fnstsw %0" : "=m"(w)::);
   SANITIZER_MEMORY_INITIALIZED(&w, sizeof(w));
   return w;
 }
 
-static inline void clear_x87_exceptions() {
+LIBC_INLINE void clear_x87_exceptions() {
   __asm__ __volatile__("fnclex" : : :);
 }
 
-static inline uint32_t get_mxcsr() {
+LIBC_INLINE uint32_t get_mxcsr() {
   uint32_t w;
   __asm__ __volatile__("stmxcsr %0" : "=m"(w)::);
   SANITIZER_MEMORY_INITIALIZED(&w, sizeof(w));
   return w;
 }
 
-static inline void write_mxcsr(uint32_t w) {
+LIBC_INLINE void write_mxcsr(uint32_t w) {
   __asm__ __volatile__("ldmxcsr %0" : : "m"(w) :);
 }
 
-static inline void get_x87_state_descriptor(X87StateDescriptor &s) {
+LIBC_INLINE void get_x87_state_descriptor(X87StateDescriptor &s) {
   __asm__ __volatile__("fnstenv %0" : "=m"(s));
   SANITIZER_MEMORY_INITIALIZED(&s, sizeof(s));
 }
 
-static inline void write_x87_state_descriptor(const X87StateDescriptor &s) {
+LIBC_INLINE void write_x87_state_descriptor(const X87StateDescriptor &s) {
   __asm__ __volatile__("fldenv %0" : : "m"(s) :);
 }
 
-static inline void fwait() { __asm__ __volatile__("fwait"); }
+LIBC_INLINE void fwait() { __asm__ __volatile__("fwait"); }
 
 } // namespace internal
 
-static inline int enable_except(int excepts) {
+LIBC_INLINE int enable_except(int excepts) {
   // In the x87 control word and in MXCSR, an exception is blocked
   // if the corresponding bit is set. That is the reason for all the
   // bit-flip operations below as we need to turn the bits to zero
@@ -174,7 +174,7 @@ static inline int enable_except(int excepts) {
   return internal::exception_status_to_macro(old_excepts);
 }
 
-static inline int disable_except(int excepts) {
+LIBC_INLINE int disable_except(int excepts) {
   // In the x87 control word and in MXCSR, an exception is blocked
   // if the corresponding bit is set.
 
@@ -194,13 +194,13 @@ static inline int disable_except(int excepts) {
   return internal::exception_status_to_macro(old_excepts);
 }
 
-static inline int get_except() {
+LIBC_INLINE int get_except() {
   uint16_t mxcsr = static_cast<uint16_t>(internal::get_mxcsr());
   uint16_t enabled_excepts = ~(mxcsr >> 7) & 0x3F;
   return internal::exception_status_to_macro(enabled_excepts);
 }
 
-static inline int clear_except(int excepts) {
+LIBC_INLINE int clear_except(int excepts) {
   internal::X87StateDescriptor state;
   internal::get_x87_state_descriptor(state);
   state.status_word &=
@@ -213,7 +213,7 @@ static inline int clear_except(int excepts) {
   return 0;
 }
 
-static inline int test_except(int excepts) {
+LIBC_INLINE int test_except(int excepts) {
   uint16_t status_value = internal::get_status_value_for_except(excepts);
   // Check both x87 status word and MXCSR.
   return internal::exception_status_to_macro(
@@ -221,7 +221,7 @@ static inline int test_except(int excepts) {
 }
 
 // Sets the exception flags but does not trigger the exception handler.
-static inline int set_except(int excepts) {
+LIBC_INLINE int set_except(int excepts) {
   uint16_t status_value = internal::get_status_value_for_except(excepts);
   internal::X87StateDescriptor state;
   internal::get_x87_state_descriptor(state);
@@ -235,7 +235,7 @@ static inline int set_except(int excepts) {
   return 0;
 }
 
-static inline int raise_except(int excepts) {
+LIBC_INLINE int raise_except(int excepts) {
   uint16_t status_value = internal::get_status_value_for_except(excepts);
 
   // We set the status flag for exception one at a time and call the
@@ -287,7 +287,7 @@ static inline int raise_except(int excepts) {
   return 0;
 }
 
-static inline int get_round() {
+LIBC_INLINE int get_round() {
   uint16_t bit_value =
       (internal::get_mxcsr() >> internal::MXCSR_ROUNDING_CONTROL_BIT_POSITION) &
       0x3;
@@ -305,7 +305,7 @@ static inline int get_round() {
   }
 }
 
-static inline int set_round(int mode) {
+LIBC_INLINE int set_round(int mode) {
   uint16_t bit_value;
   switch (mode) {
   case FE_TONEAREST:
@@ -461,7 +461,7 @@ struct WinExceptionFlags {
     same order in both.
   */
 
-static inline int get_env(fenv_t *envp) {
+LIBC_INLINE int get_env(fenv_t *envp) {
   internal::FPState *state = reinterpret_cast<internal::FPState *>(envp);
 
   uint32_t status_word = 0;
@@ -505,7 +505,7 @@ static inline int get_env(fenv_t *envp) {
   return 0;
 }
 
-static inline int set_env(const fenv_t *envp) {
+LIBC_INLINE int set_env(const fenv_t *envp) {
   const internal::FPState *state =
       reinterpret_cast<const internal::FPState *>(envp);
 
@@ -554,14 +554,14 @@ static inline int set_env(const fenv_t *envp) {
   return 0;
 }
 #else
-static inline int get_env(fenv_t *envp) {
+LIBC_INLINE int get_env(fenv_t *envp) {
   internal::FPState *state = reinterpret_cast<internal::FPState *>(envp);
   internal::get_x87_state_descriptor(state->x87_status);
   state->mxcsr = internal::get_mxcsr();
   return 0;
 }
 
-static inline int set_env(const fenv_t *envp) {
+LIBC_INLINE int set_env(const fenv_t *envp) {
   // envp contains everything including pieces like the current
   // top of FPU stack. We cannot arbitrarily change them. So, we first
   // read the current status and update only those pieces which are
diff --git a/libc/src/__support/FPUtil/x86_64/FMA.h b/libc/src/__support/FPUtil/x86_64/FMA.h
index d335585ef3015..40da101952c4a 100644
--- a/libc/src/__support/FPUtil/x86_64/FMA.h
+++ b/libc/src/__support/FPUtil/x86_64/FMA.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_X86_64_FMA_H
 
 #include "src/__support/architectures.h"
+#include "src/__support/common.h"
 
 #if !defined(LLVM_LIBC_ARCH_X86_64)
 #error "Invalid include"
@@ -26,7 +27,7 @@ namespace __llvm_libc {
 namespace fputil {
 
 template <typename T>
-static inline cpp::enable_if_t<cpp::is_same_v<T, float>, T> fma(T x, T y, T z) {
+LIBC_INLINE cpp::enable_if_t<cpp::is_same_v<T, float>, T> fma(T x, T y, T z) {
   float result;
   __m128 xmm = _mm_load_ss(&x);           // NOLINT
   __m128 ymm = _mm_load_ss(&y);           // NOLINT
@@ -37,8 +38,7 @@ static inline cpp::enable_if_t<cpp::is_same_v<T, float>, T> fma(T x, T y, T z) {
 }
 
 template <typename T>
-static inline cpp::enable_if_t<cpp::is_same_v<T, double>, T> fma(T x, T y,
-                                                                 T z) {
+LIBC_INLINE cpp::enable_if_t<cpp::is_same_v<T, double>, T> fma(T x, T y, T z) {
   double result;
   __m128d xmm = _mm_load_sd(&x);           // NOLINT
   __m128d ymm = _mm_load_sd(&y);           // NOLINT
diff --git a/libc/src/__support/FPUtil/x86_64/NextAfterLongDouble.h b/libc/src/__support/FPUtil/x86_64/NextAfterLongDouble.h
index 5ac45f1d8e6cd..8d3dd30c47dbc 100644
--- a/libc/src/__support/FPUtil/x86_64/NextAfterLongDouble.h
+++ b/libc/src/__support/FPUtil/x86_64/NextAfterLongDouble.h
@@ -23,7 +23,7 @@
 namespace __llvm_libc {
 namespace fputil {
 
-static inline long double nextafter(long double from, long double to) {
+LIBC_INLINE long double nextafter(long double from, long double to) {
   using FPBits = FPBits<long double>;
   FPBits from_bits(from);
   if (from_bits.is_nan())
diff --git a/libc/src/__support/FPUtil/x86_64/nearest_integer.h b/libc/src/__support/FPUtil/x86_64/nearest_integer.h
index e0c1b1a2d9e2d..f9a2a6a07b556 100644
--- a/libc/src/__support/FPUtil/x86_64/nearest_integer.h
+++ b/libc/src/__support/FPUtil/x86_64/nearest_integer.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_SUPPORT_FPUTIL_X86_64_NEAREST_INTEGER_H
 
 #include "src/__support/architectures.h"
+#include "src/__support/common.h"
 
 #if !defined(LLVM_LIBC_ARCH_X86_64)
 #error "Invalid include"
@@ -24,14 +25,14 @@
 namespace __llvm_libc {
 namespace fputil {
 
-static inline float nearest_integer(float x) {
+LIBC_INLINE float nearest_integer(float x) {
   __m128 xmm = _mm_set_ss(x); // NOLINT
   __m128 ymm =
       _mm_round_ss(xmm, xmm, _MM_ROUND_NEAREST | _MM_FROUND_NO_EXC); // NOLINT
   return ymm[0];
 }
 
-static inline double nearest_integer(double x) {
+LIBC_INLINE double nearest_integer(double x) {
   __m128d xmm = _mm_set_sd(x); // NOLINT
   __m128d ymm =
       _mm_round_sd(xmm, xmm, _MM_ROUND_NEAREST | _MM_FROUND_NO_EXC); // NOLINT
diff --git a/libc/src/__support/OSUtil/linux/io.h b/libc/src/__support/OSUtil/linux/io.h
index b99f828446fc5..30180b946e7c3 100644
--- a/libc/src/__support/OSUtil/linux/io.h
+++ b/libc/src/__support/OSUtil/linux/io.h
@@ -16,7 +16,7 @@
 
 namespace __llvm_libc {
 
-static inline void write_to_stderr(const char *msg) {
+LIBC_INLINE void write_to_stderr(const char *msg) {
   __llvm_libc::syscall_impl(SYS_write, 2 /* stderr */, msg,
                             internal::string_length(msg));
 }
diff --git a/libc/src/__support/OSUtil/linux/quick_exit.h b/libc/src/__support/OSUtil/linux/quick_exit.h
index ca755de19522f..e4df9a6d80976 100644
--- a/libc/src/__support/OSUtil/linux/quick_exit.h
+++ b/libc/src/__support/OSUtil/linux/quick_exit.h
@@ -11,11 +11,13 @@
 
 #include "syscall.h"             // For internal syscall function.
 
+#include "src/__support/common.h"
+
 #include <sys/syscall.h> // For syscall numbers.
 
 namespace __llvm_libc {
 
-static inline void quick_exit(int status) {
+LIBC_INLINE void quick_exit(int status) {
   for (;;) {
     __llvm_libc::syscall_impl(SYS_exit_group, status);
     __llvm_libc::syscall_impl(SYS_exit, status);
diff --git a/libc/src/__support/builtin_wrappers.h b/libc/src/__support/builtin_wrappers.h
index 426d7b43cd1fb..6e3f4274f7533 100644
--- a/libc/src/__support/builtin_wrappers.h
+++ b/libc/src/__support/builtin_wrappers.h
@@ -12,6 +12,7 @@
 
 #include "named_pair.h"
 #include "src/__support/CPP/type_traits.h"
+#include "src/__support/common.h"
 #include "src/__support/compiler_features.h"
 
 namespace __llvm_libc {
@@ -22,14 +23,14 @@ namespace __llvm_libc {
 // compiler match for us.
 namespace __internal {
 
-template <typename T> static inline int correct_zero(T val, int bits) {
+template <typename T> LIBC_INLINE int correct_zero(T val, int bits) {
   if (val == T(0))
     return sizeof(T(0)) * 8;
   else
     return bits;
 }
 
-template <typename T> static inline int clz(T val);
+template <typename T> LIBC_INLINE int clz(T val);
 template <> inline int clz<unsigned int>(unsigned int val) {
   return __builtin_clz(val);
 }
@@ -40,7 +41,7 @@ template <> inline int clz<unsigned long long int>(unsigned long long int val) {
   return __builtin_clzll(val);
 }
 
-template <typename T> static inline int ctz(T val);
+template <typename T> LIBC_INLINE int ctz(T val);
 template <> inline int ctz<unsigned int>(unsigned int val) {
   return __builtin_ctz(val);
 }
@@ -52,19 +53,19 @@ template <> inline int ctz<unsigned long long int>(unsigned long long int val) {
 }
 } // namespace __internal
 
-template <typename T> static inline int safe_ctz(T val) {
+template <typename T> LIBC_INLINE int safe_ctz(T val) {
   return __internal::correct_zero(val, __internal::ctz(val));
 }
 
-template <typename T> static inline int unsafe_ctz(T val) {
+template <typename T> LIBC_INLINE int unsafe_ctz(T val) {
   return __internal::ctz(val);
 }
 
-template <typename T> static inline int safe_clz(T val) {
+template <typename T> LIBC_INLINE int safe_clz(T val) {
   return __internal::correct_zero(val, __internal::clz(val));
 }
 
-template <typename T> static inline int unsafe_clz(T val) {
+template <typename T> LIBC_INLINE int unsafe_clz(T val) {
   return __internal::clz(val);
 }
 
diff --git a/libc/src/__support/common.h b/libc/src/__support/common.h
index 6ab9940b71ac1..25bc77978cba2 100644
--- a/libc/src/__support/common.h
+++ b/libc/src/__support/common.h
@@ -25,6 +25,10 @@
 #define LLVM_LIBC_FUNCTION_ATTR
 #endif
 
+#ifndef LIBC_INLINE
+#define LIBC_INLINE inline
+#endif
+
 // We use OpenMP to declare these functions on the device.
 #define STR(X) #X
 #define LLVM_LIBC_DECLARE_DEVICE(name)                                         \
diff --git a/libc/src/__support/detailed_powers_of_ten.h b/libc/src/__support/detailed_powers_of_ten.h
index 80dfcb2d6a59e..767b7cf6a65ee 100644
--- a/libc/src/__support/detailed_powers_of_ten.h
+++ b/libc/src/__support/detailed_powers_of_ten.h
@@ -9,6 +9,8 @@
 #ifndef LIBC_SRC_SUPPORT_DETAILED_POWERS_OF_TEN_H
 #define LIBC_SRC_SUPPORT_DETAILED_POWERS_OF_TEN_H
 
+#include "src/__support/common.h"
+
 #include <stdint.h>
 
 namespace __llvm_libc {
@@ -27,7 +29,7 @@ constexpr int32_t DETAILED_POWERS_OF_TEN_MIN_EXP_10 = -348;
 constexpr int32_t DETAILED_POWERS_OF_TEN_MAX_EXP_10 = 347;
 
 // This rescales the base 10 exponent by a factor of log(10)/log(2).
-static inline int64_t exp10_to_exp2(int64_t exp10) {
+LIBC_INLINE int64_t exp10_to_exp2(int64_t exp10) {
   return (217706 * exp10) >> 16;
 }
 
diff --git a/libc/src/__support/float_to_string.h b/libc/src/__support/float_to_string.h
index b7b1d38070ab2..5fe003f853f35 100644
--- a/libc/src/__support/float_to_string.h
+++ b/libc/src/__support/float_to_string.h
@@ -14,6 +14,7 @@
 #include "src/__support/CPP/type_traits.h"
 #include "src/__support/FPUtil/FPBits.h"
 #include "src/__support/UInt.h"
+#include "src/__support/common.h"
 #include "src/__support/ryu_constants.h"
 
 // This implementation is based on the Ryu Printf algorithm by Ulf Adams:
@@ -177,7 +178,7 @@ inline cpp::UInt<MID_INT_SIZE> get_table_negative(int exponent, size_t i,
   return num;
 }
 
-static inline uint32_t fast_uint_mod_1e9(const cpp::UInt<MID_INT_SIZE> &val) {
+LIBC_INLINE uint32_t fast_uint_mod_1e9(const cpp::UInt<MID_INT_SIZE> &val) {
   // The formula for mult_const is:
   //  1 + floor((2^(bits in target integer size + log_2(divider))) / divider)
   // Where divider is 10^9 and target integer size is 128.
@@ -189,9 +190,9 @@ static inline uint32_t fast_uint_mod_1e9(const cpp::UInt<MID_INT_SIZE> &val) {
   return static_cast<uint32_t>(val) - (1000000000 * shifted);
 }
 
-static inline uint32_t mul_shift_mod_1e9(const MantissaInt mantissa,
-                                         const cpp::UInt<MID_INT_SIZE> &large,
-                                         const int32_t shift_amount) {
+LIBC_INLINE uint32_t mul_shift_mod_1e9(const MantissaInt mantissa,
+                                       const cpp::UInt<MID_INT_SIZE> &large,
+                                       const int32_t shift_amount) {
   constexpr size_t MANT_INT_SIZE = sizeof(MantissaInt) * 8;
   cpp::UInt<MID_INT_SIZE + MANT_INT_SIZE> val(large);
   // TODO: Find a better way to force __uint128_t to be UInt<128>
diff --git a/libc/src/__support/str_to_float.h b/libc/src/__support/str_to_float.h
index 1579ac876ef47..55f41c1db29ce 100644
--- a/libc/src/__support/str_to_float.h
+++ b/libc/src/__support/str_to_float.h
@@ -13,6 +13,7 @@
 #include "src/__support/FPUtil/FPBits.h"
 #include "src/__support/UInt128.h"
 #include "src/__support/builtin_wrappers.h"
+#include "src/__support/common.h"
 #include "src/__support/ctype_utils.h"
 #include "src/__support/detailed_powers_of_ten.h"
 #include "src/__support/high_precision_decimal.h"
@@ -22,7 +23,7 @@
 namespace __llvm_libc {
 namespace internal {
 
-template <class T> uint32_t inline leading_zeroes(T inputNumber) {
+template <class T> LIBC_INLINE uint32_t leading_zeroes(T inputNumber) {
   constexpr uint32_t BITS_IN_T = sizeof(T) * 8;
   if (inputNumber == 0) {
     return BITS_IN_T;
@@ -51,23 +52,27 @@ template <class T> uint32_t inline leading_zeroes(T inputNumber) {
   return BITS_IN_T - cur_guess;
 }
 
-template <> uint32_t inline leading_zeroes<uint32_t>(uint32_t inputNumber) {
+template <>
+LIBC_INLINE uint32_t leading_zeroes<uint32_t>(uint32_t inputNumber) {
   return safe_clz(inputNumber);
 }
 
-template <> uint32_t inline leading_zeroes<uint64_t>(uint64_t inputNumber) {
+template <>
+LIBC_INLINE uint32_t leading_zeroes<uint64_t>(uint64_t inputNumber) {
   return safe_clz(inputNumber);
 }
 
-static inline uint64_t low64(const UInt128 &num) {
+LIBC_INLINE uint64_t low64(const UInt128 &num) {
   return static_cast<uint64_t>(num & 0xffffffffffffffff);
 }
 
-static inline uint64_t high64(const UInt128 &num) {
+LIBC_INLINE uint64_t high64(const UInt128 &num) {
   return static_cast<uint64_t>(num >> 64);
 }
 
-template <class T> inline void set_implicit_bit(fputil::FPBits<T> &) { return; }
+template <class T> LIBC_INLINE void set_implicit_bit(fputil::FPBits<T> &) {
+  return;
+}
 
 #if defined(SPECIAL_X86_LONG_DOUBLE)
 template <>
@@ -85,7 +90,7 @@ inline void set_implicit_bit<long double>(fputil::FPBits<long double> &result) {
 // (https://github.com/golang/go/blob/release-branch.go1.16/src/strconv/eisel_lemire.go#L25)
 // for some optimizations as well as handling 32 bit floats.
 template <class T>
-static inline bool
+LIBC_INLINE bool
 eisel_lemire(typename fputil::FPBits<T>::UIntType mantissa, int32_t exp10,
              typename fputil::FPBits<T>::UIntType *outputMantissa,
              uint32_t *outputExp2) {
@@ -306,7 +311,7 @@ constexpr int32_t NUM_POWERS_OF_TWO =
 // on the Simple Decimal Conversion algorithm by Nigel Tao, described at this
 // link: https://nigeltao.github.io/blog/2020/parse-number-f64-simple.html
 template <class T>
-static inline void
+LIBC_INLINE void
 simple_decimal_conversion(const char *__restrict numStart,
                           typename fputil::FPBits<T>::UIntType *outputMantissa,
                           uint32_t *outputExp2) {
@@ -504,7 +509,7 @@ template <> class ClingerConsts<long double> {
 // exponents, but handles them quickly. This is an implementation of Clinger's
 // Fast Path, as described above.
 template <class T>
-static inline bool
+LIBC_INLINE bool
 clinger_fast_path(typename fputil::FPBits<T>::UIntType mantissa, int32_t exp10,
                   typename fputil::FPBits<T>::UIntType *outputMantissa,
                   uint32_t *outputExp2) {
@@ -587,7 +592,7 @@ template <> constexpr int32_t get_lower_bound<double>() {
 // accuracy. The resulting mantissa and exponent are placed in outputMantissa
 // and outputExp2.
 template <class T>
-static inline void
+LIBC_INLINE void
 decimal_exp_to_float(typename fputil::FPBits<T>::UIntType mantissa,
                      int32_t exp10, const char *__restrict numStart,
                      bool truncated,
@@ -649,7 +654,7 @@ decimal_exp_to_float(typename fputil::FPBits<T>::UIntType mantissa,
 // form, this is mostly just shifting and rounding. This is used for hexadecimal
 // numbers since a base 16 exponent multiplied by 4 is the base 2 exponent.
 template <class T>
-static inline void
+LIBC_INLINE void
 binary_exp_to_float(typename fputil::FPBits<T>::UIntType mantissa, int32_t exp2,
                     bool truncated,
                     typename fputil::FPBits<T>::UIntType *outputMantissa,
@@ -736,8 +741,8 @@ binary_exp_to_float(typename fputil::FPBits<T>::UIntType mantissa, int32_t exp2,
 
 // checks if the next 4 characters of the string pointer are the start of a
 // hexadecimal floating point number. Does not advance the string pointer.
-static inline bool is_float_hex_start(const char *__restrict src,
-                                      const char decimalPoint) {
+LIBC_INLINE bool is_float_hex_start(const char *__restrict src,
+                                    const char decimalPoint) {
   if (!(*src == '0' && (*(src + 1) | 32) == 'x')) {
     return false;
   }
@@ -755,7 +760,7 @@ static inline bool is_float_hex_start(const char *__restrict src,
 // If the return value is false, then it is assumed that there is no number
 // here.
 template <class T>
-static inline bool
+LIBC_INLINE bool
 decimal_string_to_float(const char *__restrict src, const char DECIMAL_POINT,
                         char **__restrict strEnd,
                         typename fputil::FPBits<T>::UIntType *outputMantissa,
@@ -849,7 +854,7 @@ decimal_string_to_float(const char *__restrict src, const char DECIMAL_POINT,
 // If the return value is false, then it is assumed that there is no number
 // here.
 template <class T>
-static inline bool hexadecimal_string_to_float(
+LIBC_INLINE bool hexadecimal_string_to_float(
     const char *__restrict src, const char DECIMAL_POINT,
     char **__restrict strEnd,
     typename fputil::FPBits<T>::UIntType *outputMantissa,
@@ -940,8 +945,8 @@ static inline bool hexadecimal_string_to_float(
 // Takes a pointer to a string and a pointer to a string pointer. This function
 // is used as the backend for all of the string to float functions.
 template <class T>
-static inline T strtofloatingpoint(const char *__restrict src,
-                                   char **__restrict strEnd) {
+LIBC_INLINE T strtofloatingpoint(const char *__restrict src,
+                                 char **__restrict strEnd) {
   using BitsType = typename fputil::FPBits<T>::UIntType;
   fputil::FPBits<T> result = fputil::FPBits<T>();
   const char *original_src = src;
diff --git a/libc/src/__support/str_to_integer.h b/libc/src/__support/str_to_integer.h
index 269d432e31ecc..8e1ce1132904b 100644
--- a/libc/src/__support/str_to_integer.h
+++ b/libc/src/__support/str_to_integer.h
@@ -10,6 +10,7 @@
 #define LIBC_SRC_SUPPORT_STR_TO_INTEGER_H
 
 #include "src/__support/CPP/limits.h"
+#include "src/__support/common.h"
 #include "src/__support/ctype_utils.h"
 #include "src/__support/str_to_num_result.h"
 #include <errno.h>
@@ -20,14 +21,14 @@ namespace internal {
 
 // Returns a pointer to the first character in src that is not a whitespace
 // character (as determined by isspace())
-static inline const char *first_non_whitespace(const char *__restrict src) {
+LIBC_INLINE const char *first_non_whitespace(const char *__restrict src) {
   while (internal::isspace(*src)) {
     ++src;
   }
   return src;
 }
 
-static inline int b36_char_to_int(char input) {
+LIBC_INLINE int b36_char_to_int(char input) {
   if (isdigit(input))
     return input - '0';
   if (isalpha(input))
@@ -37,7 +38,7 @@ static inline int b36_char_to_int(char input) {
 
 // checks if the next 3 characters of the string pointer are the start of a
 // hexadecimal number. Does not advance the string pointer.
-static inline bool is_hex_start(const char *__restrict src) {
+LIBC_INLINE bool is_hex_start(const char *__restrict src) {
   return *src == '0' && (*(src + 1) | 32) == 'x' && isalnum(*(src + 2)) &&
          b36_char_to_int(*(src + 2)) < 16;
 }
@@ -45,7 +46,7 @@ static inline bool is_hex_start(const char *__restrict src) {
 // Takes the address of the string pointer and parses the base from the start of
 // it. This function will advance |src| to the first valid digit in the inferred
 // base.
-static inline int infer_base(const char *__restrict *__restrict src) {
+LIBC_INLINE int infer_base(const char *__restrict *__restrict src) {
   // A hexadecimal number is defined as "the prefix 0x or 0X followed by a
   // sequence of the deimal digits and the letters a (or A) through f (or F)
   // with values 10 through 15 respectively." (C standard 6.4.4.1)
@@ -67,8 +68,8 @@ static inline int infer_base(const char *__restrict *__restrict src) {
 // Takes a pointer to a string and the base to convert to. This function is used
 // as the backend for all of the string to int functions.
 template <class T>
-static inline StrToNumResult<T> strtointeger(const char *__restrict src,
-                                             int base) {
+LIBC_INLINE StrToNumResult<T> strtointeger(const char *__restrict src,
+                                           int base) {
   unsigned long long result = 0;
   bool is_number = false;
   const char *original_src = src;
diff --git a/libc/src/__support/threads/linux/CMakeLists.txt b/libc/src/__support/threads/linux/CMakeLists.txt
index 28593b0318dcb..21b5dcef46a4a 100644
--- a/libc/src/__support/threads/linux/CMakeLists.txt
+++ b/libc/src/__support/threads/linux/CMakeLists.txt
@@ -29,9 +29,10 @@ add_object_library(
     libc.config.linux.app_h
     libc.include.sys_syscall
     libc.src.__support.CPP.atomic
-    libc.src.__support.error_or
     libc.src.__support.CPP.stringstream
     libc.src.__support.CPP.string_view
+    libc.src.__support.common
+    libc.src.__support.error_or
     libc.src.__support.threads.thread_common
   COMPILE_OPTIONS
     -O3
diff --git a/libc/src/__support/threads/linux/thread.cpp b/libc/src/__support/threads/linux/thread.cpp
index e0fc69034a5f6..62e24e58b9ec3 100644
--- a/libc/src/__support/threads/linux/thread.cpp
+++ b/libc/src/__support/threads/linux/thread.cpp
@@ -12,6 +12,7 @@
 #include "src/__support/CPP/string_view.h"
 #include "src/__support/CPP/stringstream.h"
 #include "src/__support/OSUtil/syscall.h" // For syscall functions.
+#include "src/__support/common.h"
 #include "src/__support/error_or.h"
 #include "src/__support/threads/linux/futex_word.h" // For FutexWordType
 
@@ -54,7 +55,7 @@ static constexpr unsigned CLONE_SYSCALL_FLAGS =
                            // wake the joining thread.
     | CLONE_SETTLS;        // Setup the thread pointer of the new thread.
 
-static inline ErrorOr<void *> alloc_stack(size_t size) {
+LIBC_INLINE ErrorOr<void *> alloc_stack(size_t size) {
   long mmap_result =
       __llvm_libc::syscall_impl(MMAP_SYSCALL_NUMBER,
                                 0, // No special address
@@ -69,7 +70,7 @@ static inline ErrorOr<void *> alloc_stack(size_t size) {
   return reinterpret_cast<void *>(mmap_result);
 }
 
-static inline void free_stack(void *stack, size_t size) {
+LIBC_INLINE void free_stack(void *stack, size_t size) {
   __llvm_libc::syscall_impl(SYS_munmap, stack, size);
 }
 
diff --git a/libc/src/string/memory_utils/bcmp_implementations.h b/libc/src/string/memory_utils/bcmp_implementations.h
index 18a4ab829851e..4e31cc92bd838 100644
--- a/libc/src/string/memory_utils/bcmp_implementations.h
+++ b/libc/src/string/memory_utils/bcmp_implementations.h
@@ -20,7 +20,7 @@
 
 namespace __llvm_libc {
 
-[[maybe_unused]] static inline BcmpReturnType
+[[maybe_unused]] LIBC_INLINE BcmpReturnType
 inline_bcmp_embedded_tiny(CPtr p1, CPtr p2, size_t count) {
   LLVM_LIBC_LOOP_NOUNROLL
   for (size_t offset = 0; offset < count; ++offset)
@@ -30,7 +30,7 @@ inline_bcmp_embedded_tiny(CPtr p1, CPtr p2, size_t count) {
 }
 
 #if defined(LLVM_LIBC_ARCH_X86) || defined(LLVM_LIBC_ARCH_AARCH64)
-[[maybe_unused]] static inline BcmpReturnType
+[[maybe_unused]] LIBC_INLINE BcmpReturnType
 inline_bcmp_generic_gt16(CPtr p1, CPtr p2, size_t count) {
   if (count < 256)
     return generic::Bcmp<16>::loop_and_tail(p1, p2, count);
@@ -42,7 +42,7 @@ inline_bcmp_generic_gt16(CPtr p1, CPtr p2, size_t count) {
 #endif // defined(LLVM_LIBC_ARCH_X86) || defined(LLVM_LIBC_ARCH_AARCH64)
 
 #if defined(LLVM_LIBC_ARCH_X86)
-[[maybe_unused]] static inline BcmpReturnType
+[[maybe_unused]] LIBC_INLINE BcmpReturnType
 inline_bcmp_x86_sse2_gt16(CPtr p1, CPtr p2, size_t count) {
   if (count <= 32)
     return x86::sse2::Bcmp<16>::head_tail(p1, p2, count);
@@ -54,7 +54,7 @@ inline_bcmp_x86_sse2_gt16(CPtr p1, CPtr p2, size_t count) {
   return x86::sse2::Bcmp<64>::loop_and_tail(p1, p2, count);
 }
 
-[[maybe_unused]] static inline BcmpReturnType
+[[maybe_unused]] LIBC_INLINE BcmpReturnType
 inline_bcmp_x86_avx2_gt16(CPtr p1, CPtr p2, size_t count) {
   if (count <= 32)
     return x86::sse2::Bcmp<16>::head_tail(p1, p2, count);
@@ -70,7 +70,7 @@ inline_bcmp_x86_avx2_gt16(CPtr p1, CPtr p2, size_t count) {
   return x86::avx2::Bcmp<64>::loop_and_tail(p1, p2, count);
 }
 
-[[maybe_unused]] static inline BcmpReturnType
+[[maybe_unused]] LIBC_INLINE BcmpReturnType
 inline_bcmp_x86_avx512bw_gt16(CPtr p1, CPtr p2, size_t count) {
   if (count <= 32)
     return x86::sse2::Bcmp<16>::head_tail(p1, p2, count);
@@ -86,8 +86,8 @@ inline_bcmp_x86_avx512bw_gt16(CPtr p1, CPtr p2, size_t count) {
   return x86::avx512bw::Bcmp<64>::loop_and_tail(p1, p2, count);
 }
 
-[[maybe_unused]] static inline BcmpReturnType inline_bcmp_x86(CPtr p1, CPtr p2,
-                                                              size_t count) {
+[[maybe_unused]] LIBC_INLINE BcmpReturnType inline_bcmp_x86(CPtr p1, CPtr p2,
+                                                            size_t count) {
   if (count == 0)
     return BcmpReturnType::ZERO();
   if (count == 1)
@@ -112,8 +112,9 @@ inline_bcmp_x86_avx512bw_gt16(CPtr p1, CPtr p2, size_t count) {
 #endif // defined(LLVM_LIBC_ARCH_X86)
 
 #if defined(LLVM_LIBC_ARCH_AARCH64)
-[[maybe_unused]] static inline BcmpReturnType
-inline_bcmp_aarch64(CPtr p1, CPtr p2, size_t count) {
+[[maybe_unused]] LIBC_INLINE BcmpReturnType inline_bcmp_aarch64(CPtr p1,
+                                                                CPtr p2,
+                                                                size_t count) {
   if (likely(count <= 32)) {
     if (unlikely(count >= 16)) {
       return aarch64::Bcmp<16>::head_tail(p1, p2, count);
@@ -159,7 +160,7 @@ inline_bcmp_aarch64(CPtr p1, CPtr p2, size_t count) {
 }
 #endif // defined(LLVM_LIBC_ARCH_AARCH64)
 
-static inline BcmpReturnType inline_bcmp(CPtr p1, CPtr p2, size_t count) {
+LIBC_INLINE BcmpReturnType inline_bcmp(CPtr p1, CPtr p2, size_t count) {
 #if defined(LLVM_LIBC_ARCH_X86)
   return inline_bcmp_x86(p1, p2, count);
 #elif defined(LLVM_LIBC_ARCH_AARCH64)
@@ -173,7 +174,7 @@ static inline BcmpReturnType inline_bcmp(CPtr p1, CPtr p2, size_t count) {
 #endif
 }
 
-static inline int inline_bcmp(const void *p1, const void *p2, size_t count) {
+LIBC_INLINE int inline_bcmp(const void *p1, const void *p2, size_t count) {
   return static_cast<int>(inline_bcmp(reinterpret_cast<CPtr>(p1),
                                       reinterpret_cast<CPtr>(p2), count));
 }
diff --git a/libc/src/string/memory_utils/memcmp_implementations.h b/libc/src/string/memory_utils/memcmp_implementations.h
index 1dac6e011c8c1..1f0f5b91bc05b 100644
--- a/libc/src/string/memory_utils/memcmp_implementations.h
+++ b/libc/src/string/memory_utils/memcmp_implementations.h
@@ -20,7 +20,7 @@
 #include <stddef.h> // size_t
 
 namespace __llvm_libc {
-[[maybe_unused]] static inline MemcmpReturnType
+[[maybe_unused]] LIBC_INLINE MemcmpReturnType
 inline_memcmp_embedded_tiny(CPtr p1, CPtr p2, size_t count) {
   LLVM_LIBC_LOOP_NOUNROLL
   for (size_t offset = 0; offset < count; ++offset)
@@ -30,7 +30,7 @@ inline_memcmp_embedded_tiny(CPtr p1, CPtr p2, size_t count) {
 }
 
 #if defined(LLVM_LIBC_ARCH_X86) || defined(LLVM_LIBC_ARCH_AARCH64)
-[[maybe_unused]] static inline MemcmpReturnType
+[[maybe_unused]] LIBC_INLINE MemcmpReturnType
 inline_memcmp_generic_gt16(CPtr p1, CPtr p2, size_t count) {
   if (unlikely(count >= 384)) {
     if (auto value = generic::Memcmp<16>::block(p1, p2))
@@ -42,7 +42,7 @@ inline_memcmp_generic_gt16(CPtr p1, CPtr p2, size_t count) {
 #endif // defined(LLVM_LIBC_ARCH_X86) || defined(LLVM_LIBC_ARCH_AARCH64)
 
 #if defined(LLVM_LIBC_ARCH_X86)
-[[maybe_unused]] static inline MemcmpReturnType
+[[maybe_unused]] LIBC_INLINE MemcmpReturnType
 inline_memcmp_x86_sse2_gt16(CPtr p1, CPtr p2, size_t count) {
   if (unlikely(count >= 384)) {
     if (auto value = x86::sse2::Memcmp<16>::block(p1, p2))
@@ -52,7 +52,7 @@ inline_memcmp_x86_sse2_gt16(CPtr p1, CPtr p2, size_t count) {
   return x86::sse2::Memcmp<16>::loop_and_tail(p1, p2, count);
 }
 
-[[maybe_unused]] static inline MemcmpReturnType
+[[maybe_unused]] LIBC_INLINE MemcmpReturnType
 inline_memcmp_x86_avx2_gt16(CPtr p1, CPtr p2, size_t count) {
   if (count <= 32)
     return x86::sse2::Memcmp<16>::head_tail(p1, p2, count);
@@ -68,7 +68,7 @@ inline_memcmp_x86_avx2_gt16(CPtr p1, CPtr p2, size_t count) {
   return x86::avx2::Memcmp<32>::loop_and_tail(p1, p2, count);
 }
 
-[[maybe_unused]] static inline MemcmpReturnType
+[[maybe_unused]] LIBC_INLINE MemcmpReturnType
 inline_memcmp_x86_avx512bw_gt16(CPtr p1, CPtr p2, size_t count) {
   if (count <= 32)
     return x86::sse2::Memcmp<16>::head_tail(p1, p2, count);
@@ -87,7 +87,7 @@ inline_memcmp_x86_avx512bw_gt16(CPtr p1, CPtr p2, size_t count) {
 #endif // defined(LLVM_LIBC_ARCH_X86)
 
 #if defined(LLVM_LIBC_ARCH_AARCH64)
-[[maybe_unused]] static inline MemcmpReturnType
+[[maybe_unused]] LIBC_INLINE MemcmpReturnType
 inline_memcmp_aarch64_neon_gt16(CPtr p1, CPtr p2, size_t count) {
   if (unlikely(count >= 128)) { // [128, ∞]
     if (auto value = generic::Memcmp<16>::block(p1, p2))
@@ -108,7 +108,7 @@ inline_memcmp_aarch64_neon_gt16(CPtr p1, CPtr p2, size_t count) {
 }
 #endif // defined(LLVM_LIBC_ARCH_AARCH64)
 
-static inline MemcmpReturnType inline_memcmp(CPtr p1, CPtr p2, size_t count) {
+LIBC_INLINE MemcmpReturnType inline_memcmp(CPtr p1, CPtr p2, size_t count) {
 #if defined(LLVM_LIBC_ARCH_X86) || defined(LLVM_LIBC_ARCH_AARCH64)
   if (count == 0)
     return MemcmpReturnType::ZERO();
@@ -146,7 +146,7 @@ static inline MemcmpReturnType inline_memcmp(CPtr p1, CPtr p2, size_t count) {
 #endif
 }
 
-static inline int inline_memcmp(const void *p1, const void *p2, size_t count) {
+LIBC_INLINE int inline_memcmp(const void *p1, const void *p2, size_t count) {
   return static_cast<int>(inline_memcmp(reinterpret_cast<CPtr>(p1),
                                         reinterpret_cast<CPtr>(p2), count));
 }
diff --git a/libc/src/string/memory_utils/memcpy_implementations.h b/libc/src/string/memory_utils/memcpy_implementations.h
index 8ae237f5d781a..23abdb8003896 100644
--- a/libc/src/string/memory_utils/memcpy_implementations.h
+++ b/libc/src/string/memory_utils/memcpy_implementations.h
@@ -21,7 +21,7 @@
 
 namespace __llvm_libc {
 
-[[maybe_unused]] static inline void
+[[maybe_unused]] LIBC_INLINE void
 inline_memcpy_embedded_tiny(Ptr __restrict dst, CPtr __restrict src,
                             size_t count) {
   LLVM_LIBC_LOOP_NOUNROLL
@@ -30,7 +30,7 @@ inline_memcpy_embedded_tiny(Ptr __restrict dst, CPtr __restrict src,
 }
 
 #if defined(LLVM_LIBC_ARCH_X86)
-[[maybe_unused]] static inline void
+[[maybe_unused]] LIBC_INLINE void
 inline_memcpy_x86(Ptr __restrict dst, CPtr __restrict src, size_t count) {
   if (count == 0)
     return;
@@ -60,7 +60,7 @@ inline_memcpy_x86(Ptr __restrict dst, CPtr __restrict src, size_t count) {
   return builtin::Memcpy<kBlockSize>::loop_and_tail(dst, src, count);
 }
 
-[[maybe_unused]] static inline void
+[[maybe_unused]] LIBC_INLINE void
 inline_memcpy_x86_maybe_interpose_repmovsb(Ptr __restrict dst,
                                            CPtr __restrict src, size_t count) {
   // Whether to use rep;movsb exclusively, not at all, or only above a certain
@@ -89,7 +89,7 @@ inline_memcpy_x86_maybe_interpose_repmovsb(Ptr __restrict dst,
 #endif // defined(LLVM_LIBC_ARCH_X86)
 
 #if defined(LLVM_LIBC_ARCH_AARCH64)
-[[maybe_unused]] static inline void
+[[maybe_unused]] LIBC_INLINE void
 inline_memcpy_aarch64(Ptr __restrict dst, CPtr __restrict src, size_t count) {
   if (count == 0)
     return;
@@ -117,8 +117,8 @@ inline_memcpy_aarch64(Ptr __restrict dst, CPtr __restrict src, size_t count) {
 }
 #endif // defined(LLVM_LIBC_ARCH_AARCH64)
 
-static inline void inline_memcpy(Ptr __restrict dst, CPtr __restrict src,
-                                 size_t count) {
+LIBC_INLINE void inline_memcpy(Ptr __restrict dst, CPtr __restrict src,
+                               size_t count) {
   using namespace __llvm_libc::builtin;
 #if defined(LLVM_LIBC_ARCH_X86)
   return inline_memcpy_x86_maybe_interpose_repmovsb(dst, src, count);
@@ -133,8 +133,8 @@ static inline void inline_memcpy(Ptr __restrict dst, CPtr __restrict src,
 #endif
 }
 
-static inline void inline_memcpy(void *__restrict dst,
-                                 const void *__restrict src, size_t count) {
+LIBC_INLINE void inline_memcpy(void *__restrict dst, const void *__restrict src,
+                               size_t count) {
   inline_memcpy(reinterpret_cast<Ptr>(dst), reinterpret_cast<CPtr>(src), count);
 }
 
diff --git a/libc/src/string/memory_utils/memmove_implementations.h b/libc/src/string/memory_utils/memmove_implementations.h
index 7e26b36a86135..0444aedb3bf7e 100644
--- a/libc/src/string/memory_utils/memmove_implementations.h
+++ b/libc/src/string/memory_utils/memmove_implementations.h
@@ -18,7 +18,7 @@
 
 namespace __llvm_libc {
 
-[[maybe_unused]] static inline void
+[[maybe_unused]] LIBC_INLINE void
 inline_memmove_embedded_tiny(Ptr dst, CPtr src, size_t count) {
   if ((count == 0) || (dst == src))
     return;
@@ -34,8 +34,8 @@ inline_memmove_embedded_tiny(Ptr dst, CPtr src, size_t count) {
 }
 
 template <size_t MaxSize>
-[[maybe_unused]] static inline void inline_memmove_generic(Ptr dst, CPtr src,
-                                                           size_t count) {
+[[maybe_unused]] LIBC_INLINE void inline_memmove_generic(Ptr dst, CPtr src,
+                                                         size_t count) {
   if (count == 0)
     return;
   if (count == 1)
@@ -65,7 +65,7 @@ template <size_t MaxSize>
   }
 }
 
-static inline void inline_memmove(Ptr dst, CPtr src, size_t count) {
+LIBC_INLINE void inline_memmove(Ptr dst, CPtr src, size_t count) {
 #if defined(LLVM_LIBC_ARCH_X86) || defined(LLVM_LIBC_ARCH_AARCH64)
 #if defined(LLVM_LIBC_ARCH_X86)
   static constexpr size_t kMaxSize = x86::kAvx512F ? 64
@@ -110,7 +110,7 @@ static inline void inline_memmove(Ptr dst, CPtr src, size_t count) {
 #endif
 }
 
-static inline void inline_memmove(void *dst, const void *src, size_t count) {
+LIBC_INLINE void inline_memmove(void *dst, const void *src, size_t count) {
   inline_memmove(reinterpret_cast<Ptr>(dst), reinterpret_cast<CPtr>(src),
                  count);
 }
diff --git a/libc/src/string/memory_utils/op_aarch64.h b/libc/src/string/memory_utils/op_aarch64.h
index 780191902f7ad..d94e7f4b2b612 100644
--- a/libc/src/string/memory_utils/op_aarch64.h
+++ b/libc/src/string/memory_utils/op_aarch64.h
@@ -33,7 +33,7 @@ namespace neon {
 template <size_t Size> struct BzeroCacheLine {
   static constexpr size_t SIZE = Size;
 
-  static inline void block(Ptr dst, uint8_t) {
+  LIBC_INLINE void block(Ptr dst, uint8_t) {
     static_assert(Size == 64);
 #if __SIZEOF_POINTER__ == 4
     asm("dc zva, %w[dst]" : : [dst] "r"(dst) : "memory");
@@ -42,7 +42,7 @@ template <size_t Size> struct BzeroCacheLine {
 #endif
   }
 
-  static inline void loop_and_tail(Ptr dst, uint8_t value, size_t count) {
+  LIBC_INLINE void loop_and_tail(Ptr dst, uint8_t value, size_t count) {
     static_assert(Size > 1, "a loop of size 1 does not need tail");
     size_t offset = 0;
     do {
@@ -73,11 +73,11 @@ template <size_t Size> struct Bcmp {
   static constexpr size_t SIZE = Size;
   static constexpr size_t BlockSize = 32;
 
-  static const unsigned char *as_u8(CPtr ptr) {
+  LIBC_INLINE static const unsigned char *as_u8(CPtr ptr) {
     return reinterpret_cast<const unsigned char *>(ptr);
   }
 
-  static inline BcmpReturnType block(CPtr p1, CPtr p2) {
+  LIBC_INLINE static BcmpReturnType block(CPtr p1, CPtr p2) {
     if constexpr (Size == 16) {
       auto _p1 = as_u8(p1);
       auto _p2 = as_u8(p2);
@@ -113,11 +113,11 @@ template <size_t Size> struct Bcmp {
     return BcmpReturnType::ZERO();
   }
 
-  static inline BcmpReturnType tail(CPtr p1, CPtr p2, size_t count) {
+  LIBC_INLINE static BcmpReturnType tail(CPtr p1, CPtr p2, size_t count) {
     return block(p1 + count - SIZE, p2 + count - SIZE);
   }
 
-  static inline BcmpReturnType head_tail(CPtr p1, CPtr p2, size_t count) {
+  LIBC_INLINE static BcmpReturnType head_tail(CPtr p1, CPtr p2, size_t count) {
     if constexpr (Size == 16) {
       auto _p1 = as_u8(p1);
       auto _p2 = as_u8(p2);
@@ -159,7 +159,8 @@ template <size_t Size> struct Bcmp {
     return BcmpReturnType::ZERO();
   }
 
-  static inline BcmpReturnType loop_and_tail(CPtr p1, CPtr p2, size_t count) {
+  LIBC_INLINE static BcmpReturnType loop_and_tail(CPtr p1, CPtr p2,
+                                                  size_t count) {
     static_assert(Size > 1, "a loop of size 1 does not need tail");
     size_t offset = 0;
     do {