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Add detection of gcc versions that do not support isysroot option and do not use it for them.

This commit is contained in:
Bill Hoffman 2009-09-18 14:22:20 -04:00
parent 3c32c904b3
commit 58818d5168
2 changed files with 27 additions and 7 deletions
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14
Modules/Platform/Darwin.cmake
View File

@ -182,6 +182,20 @@ IF(XCODE)
SET(CMAKE_INCLUDE_SYSTEM_FLAG_CXX)
ENDIF(XCODE)
IF(NOT CMAKE_OSX_GCC_SUPPORT_ISYSROOT)
IF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
EXECUTE_PROCESS(COMMAND ${CMAKE_C_COMPILER} "--version"
OUTPUT_VARIABLE GCC_VERSION)
ENDIF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
STRING(REGEX REPLACE "^[^ ]+[ ][^ ]+[ ]([^ ]+).*$" "\\1"
gcc_version_tmp "${GCC_VERSION}")
IF(${gcc_version_tmp} VERSION_GREATER 3.9)
SET(CMAKE_OSX_GCC_SUPPORT_ISYSROOT TRUE CACHE INTERNAL "GCC supports isysroot")
ELSE(${gcc_version_tmp} VERSION_GREATER 3.9)
SET(CMAKE_OSX_GCC_SUPPORT_ISYSROOT FALSE CACHE INTERNAL "GCC supports isysroot")
ENDIF(${gcc_version_tmp} VERSION_GREATER 3.9)
ENDIF(NOT CMAKE_OSX_GCC_SUPPORT_ISYSROOT)
# Need to list dependent shared libraries on link line. When building
# with -isysroot (for universal binaries), the linker always looks for
# dependent libraries under the sysroot. Listing them on the link

20
Source/cmLocalGenerator.cxx
View File

@ -1759,9 +1759,14 @@ void cmLocalGenerator::AddLanguageFlags(std::string& flags,
this->Makefile->GetDefinition("CMAKE_OSX_SYSROOT_DEFAULT");
const char* deploymentTarget =
this->Makefile->GetDefinition("CMAKE_OSX_DEPLOYMENT_TARGET");
const char* gccHasIsysroot =
this->Makefile->GetRequiredDefinition("CMAKE_OSX_GCC_SUPPORT_ISYSROOT");
bool hasIsysroot = true;
if(cmSystemTools::IsOff(gccHasIsysroot))
{
hasIsysroot = false;
}
bool flagsUsed = false;
if(osxArch && sysroot && lang && (lang[0] =='C' || lang[0] == 'F'))
{
std::vector<std::string> archs;
@ -1787,16 +1792,17 @@ void cmLocalGenerator::AddLanguageFlags(std::string& flags,
flags += " -arch ";
flags += *i;
}
flags += " -isysroot ";
flags += sysroot;
if(hasIsysroot)
{
flags += " -isysroot ";
flags += sysroot;
}
flagsUsed = true;
}
}
if(!flagsUsed && sysroot && sysrootDefault &&
strcmp(sysroot, sysrootDefault) != 0)
strcmp(sysroot, sysrootDefault) != 0 && hasIsysroot)
{
flags += " -isysroot ";
flags += sysroot;