The following issue has been SUBMITTED. ====================================================================== http://cmake.org/Bug/view.php?id=14572 ====================================================================== Reported By: Clinton Stimpson Assigned To: ====================================================================== Project: CMake Issue ID: 14572 Category: CMake Reproducibility: have not tried Severity: minor Priority: normal Status: new ====================================================================== Date Submitted: 2013-11-16 18:24 EST Last Modified: 2013-11-16 18:24 EST ====================================================================== Summary: Xcode 4.6 gcc problems on Mac OS X 10.9 Description: CMake doesn't work well when trying to use gcc from Xcode 4.6 on Mac OS X 10.9.
I've installed Xcode 4.6 from the developer website. Then did xcode-select /Applications/Xcode-4.6.app Running cmake -G Xcode gives CMake Warning at .../Modules/Platform/Darwin.cmake:179 (message): Ignoring CMAKE_OSX_SYSROOT value: /Applications/Xcode-4.6.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk because the directory does not exist. But, if I want to use the gcc compiler instead, by running: cmake -G Xcode -T com.apple.compilers.llvmgcc42 it gives: -- The C compiler identification is unknown -- The CXX compiler identification is unknown -- Check for working C compiler using: Xcode -- Check for working C compiler using: Xcode -- broken .... To help that, I set export SDKROOT=/Applications/Xcode-4.6.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk then try again with a clean build dir to get: -- The C compiler identification is unknown -- The CXX compiler identification is unknown -- Check for working C compiler using: Xcode -- Check for working C compiler using: Xcode -- works The compiler id test failed. I go into CMakeFiles/<version>/CompilerIdC and run xcodebuild -project CompierIdC.xcodeproj and it fails to link because of this error: ld: library not found for -lcrt1.10.6.o If the xcodeproj is manually edited to include SDKROOT = "/Applications/Xcode-4.6.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk"; Then the problem goes away. Using the Makefile generator didn't have these issues. I could set the environment variables CC, CXX, SDKROOT and things worked fine. CMake knows how to avoid the linker error about not finding -lcrt1.10.6.o when using the Makefile generator by using -sysroot on the compiler id test. The xcode generator needs the same. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2013-11-16 18:24 Clinton StimpsonNew Issue ====================================================================== -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
