[openssl] Handle INSTALL_NAME_DIR and OSX_DEPLOYMENT_TARGET for macOS…

… shared builds (#14785)

* [openssl] Handle INSTALL_NAME_DIR for macOS shared builds

* [openssl] Handle OSX_DEPLOYMENT_TARGET for macOS shared builds

ports/openssl/CONTROL

@@ -1,5 +1,5 @@
 Source: openssl
 Version: 1.1.1h
-Port-Version: 2
+Port-Version: 3
 Homepage: https://www.openssl.org
 Description: OpenSSL is an open source project that provides a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It is also a general-purpose cryptography library.

ports/openssl/unix/CMakeLists.txt

@@ -46,10 +46,12 @@ message("CMAKE_C_COMPILER=${CMAKE_C_COMPILER}")
 message("COMPILER_ROOT=${COMPILER_ROOT}")
 message("CMAKE_SYSROOT=${CMAKE_SYSROOT}")
 message("CMAKE_OSX_SYSROOT=${CMAKE_OSX_SYSROOT}")
+message("CMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}")
 message("CMAKE_C_FLAGS=${CMAKE_C_FLAGS}")
 message("CMAKE_C_FLAGS_RELEASE=${CMAKE_C_FLAGS_RELEASE}")
 message("CMAKE_C_FLAGS_DEBUG=${CMAKE_C_FLAGS_DEBUG}")
 message("CMAKE_INCLUDE_SYSTEM_FLAG_C=${CMAKE_INCLUDE_SYSTEM_FLAG_C}")
+message("CMAKE_C_OSX_DEPLOYMENT_TARGET_FLAG=${CMAKE_C_OSX_DEPLOYMENT_TARGET_FLAG}")
 
 set(CFLAGS "${CMAKE_C_FLAGS}")
 if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
@@ -66,6 +68,9 @@ if(CMAKE_SYSROOT AND CMAKE_C_COMPILE_OPTIONS_SYSROOT)
 elseif(CMAKE_OSX_SYSROOT AND CMAKE_C_COMPILE_OPTIONS_SYSROOT)
     set(CFLAGS "${CFLAGS} ${CMAKE_C_COMPILE_OPTIONS_SYSROOT}${CMAKE_OSX_SYSROOT}")
 endif()
+if (CMAKE_OSX_DEPLOYMENT_TARGET AND CMAKE_C_OSX_DEPLOYMENT_TARGET_FLAG)
+    set(CFLAGS "${CFLAGS} ${CMAKE_C_OSX_DEPLOYMENT_TARGET_FLAG}${CMAKE_OSX_DEPLOYMENT_TARGET}")
+endif()
 
 string(REGEX REPLACE "^ " "" CFLAGS "${CFLAGS}")
 
@@ -175,6 +180,26 @@ add_custom_target(build_libs ALL
     BYPRODUCTS ${INSTALL_LIBS}
 )
 
+if((CMAKE_SYSTEM_NAME STREQUAL "Darwin" OR CMAKE_SYSTEM_NAME STREQUAL "iOS") AND BUILD_SHARED_LIBS)
+    if(DEFINED CMAKE_INSTALL_NAME_DIR)
+        set(ID_PREFIX "${CMAKE_INSTALL_NAME_DIR}")
+    else()
+        set(ID_PREFIX "@rpath")
+    endif()
+
+    add_custom_command(
+        TARGET build_libs
+        COMMAND /usr/bin/install_name_tool -id "${ID_PREFIX}/libssl.${SHLIB_VERSION}.dylib"
+                                               "${BUILDDIR}/libssl.${SHLIB_VERSION}.dylib"
+        COMMAND /usr/bin/install_name_tool -id "${ID_PREFIX}/libcrypto.${SHLIB_VERSION}.dylib"
+                                               "${BUILDDIR}/libcrypto.1.1.dylib"
+        COMMAND /usr/bin/install_name_tool -change "${CMAKE_INSTALL_PREFIX}/lib/libcrypto.${SHLIB_VERSION}.dylib"
+                                                   "${ID_PREFIX}/libcrypto.${SHLIB_VERSION}.dylib"
+                                                   "${BUILDDIR}/libssl.${SHLIB_VERSION}.dylib"
+        VERBATIM
+    )
+endif()
+
 install(
     FILES ${INSTALL_LIBS}
     DESTINATION lib