compiler/installer.ini

@@ -7,7 +7,7 @@ Version: "$version"
 Platforms: """
   windows: i386;amd64
   linux: i386;amd64;powerpc64;arm;sparc;mips;mipsel;mips64;mips64el;powerpc;powerpc64el;arm64;riscv64
-  macosx: i386;amd64;powerpc64
+  macosx: i386;amd64;powerpc;powerpc64
   solaris: i386;amd64;sparc;sparc64
   freebsd: i386;amd64
   netbsd: i386;amd64

config/nim.cfg

@@ -124,7 +124,12 @@ path="$lib/pure"
 @end
 
 @if macosx or freebsd:
-  cc = clang
+  @if macosx and powerpc:
+    # no clang and missing posix_spawn
+    define:useFork
+  @else:
+    cc = clang
+  @end
   tlsEmulation:on
   gcc.options.always = "-w"
   gcc.cpp.options.always = "-w -fpermissive"

lib/nimbase.h

@@ -498,7 +498,7 @@ typedef int Nim_and_C_compiler_disagree_on_target_architecture[sizeof(NI) == siz
 #  include <sys/types.h>
 #  include <types/vxWind.h>
 #  include <tool/gnu/toolMacros.h>
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__APPLE__)
 #  include <sys/types.h>
 #endif
 

lib/pure/os.nim

@@ -296,6 +296,10 @@ proc setCurrentDir*(newDir: string) {.inline, tags: [].} =
   else:
     if chdir(newDir) != 0'i32: raiseOSError(osLastError())
 
+when defined(posix):
+   var
+     pathMax {.importc: "PATH_MAX", header: "<stdlib.h>".}: cint
+
 proc expandFilename*(filename: string): string {.rtl, extern: "nos$1",
   tags: [ReadDirEffect].} =
   ## Returns the full (`absolute`:idx:) path of the file `filename`,
@@ -329,14 +333,12 @@ proc expandFilename*(filename: string): string {.rtl, extern: "nos$1",
           setLen(result, L)
           break
   else:
-    # according to Posix we don't need to allocate space for result pathname.
-    # But we need to free return value with free(3).
-    var r = realpath(filename, nil)
-    if r.isNil:
-      raiseOSError(osLastError())
-    else:
-      result = $r
-      c_free(cast[pointer](r))
+    # realpath needs to take an allocated buffer according to POSIX-2004.
+    # dynamic allocation by passing NULL is only available since POSIX-2017
+    result = newString(pathMax)
+    var r = realpath(filename, result)
+    if r.isNil: raiseOSError(osLastError())
+    setLen(result, c_strlen(result))
 
 when defined(Windows):
   proc openHandle(path: string, followSymlink=true, writeAccess=false): Handle =

tools/niminst/buildsh.tmpl

@@ -100,8 +100,14 @@ case $uos in
     ;;
   *darwin* )
     myos="macosx"
-    CC="clang"
-    LINKER="clang"
+    case $HOSTTYPE in
+      powerpc)
+        ucpu="powerpc"
+        ;;
+      *)
+        CC="clang"
+        LINKER="clang"
+    esac
     LINK_FLAGS="$LINK_FLAGS -ldl -lm"
     if [ "$HOSTTYPE" = "x86_64" ] ; then
       ucpu="amd64"

tools/niminst/makefile.tmpl

@@ -42,12 +42,14 @@ ifeq ($(uos),netbsd)
 endif
 ifeq ($(uos),darwin)
   myos = macosx
-  CC = clang
-  LD = clang
-  LDFLAGS += -ldl -lm
-  ifeq ($(HOSTTYPE),x86_64)
-    ucpu = amd64
+  ifeq ($(ucpu),power macintosh)
+    ucpu = powerpc
+    LD = gcc
+  else
+    CC = clang
+    LD = clang
   endif
+  LDFLAGS += -ldl -lm
 endif
 ifeq ($(uos),aix)
   myos = aix