diff options
| author | Brad King <brad.king@kitware.com> | 2009-09-19 14:14:31 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2009-09-19 14:14:31 (GMT) |
| commit | 180c60a86f5c44085a1a66865bfc8b9479c72e8a (patch) | |
| tree | 33e7fc0647387c8a73a49e9a7e40c6d672fd5fee /Modules/Platform/Darwin-GNU.cmake | |
| parent | 196d9a54aa7083c2d063147ac431c7efd11f393d (diff) | |
| download | CMake-180c60a86f5c44085a1a66865bfc8b9479c72e8a.zip CMake-180c60a86f5c44085a1a66865bfc8b9479c72e8a.tar.gz CMake-180c60a86f5c44085a1a66865bfc8b9479c72e8a.tar.bz2 | |
Fix check for -isysroot on OS X
Previously we checked for this flag by parsing the version number of GCC
out of 'gcc --version', but this is not reliable because the format can
vary greatly. Now we run 'gcc -v --help' and look for '-isysroot' in
the list of options.
We also now store the result on a per-language basis in the per-compiler
info file "CMake<LANG>Compiler.cmake". This is necessary to make it
accessible from try-compile projects so that they generate correctly.
Diffstat (limited to 'Modules/Platform/Darwin-GNU.cmake')
| -rw-r--r-- | Modules/Platform/Darwin-GNU.cmake | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Modules/Platform/Darwin-GNU.cmake b/Modules/Platform/Darwin-GNU.cmake new file mode 100644 index 0000000..8bbad88 --- /dev/null +++ b/Modules/Platform/Darwin-GNU.cmake @@ -0,0 +1,18 @@ +macro(cmake_gnu_has_isysroot lang) + if("x${CMAKE_${lang}_HAS_ISYSROOT}" STREQUAL "x") + set(_doc "${lang} compiler has -isysroot") + message(STATUS "Checking whether ${_doc}") + execute_process( + COMMAND ${CMAKE_${lang}_COMPILER} "-v" "--help" + OUTPUT_VARIABLE _gcc_help + ERROR_VARIABLE _gcc_help + ) + if("${_gcc_help}" MATCHES "isysroot") + message(STATUS "Checking whether ${_doc} - yes") + set(CMAKE_${lang}_HAS_ISYSROOT 1) + else() + message(STATUS "Checking whether ${_doc} - no") + set(CMAKE_${lang}_HAS_ISYSROOT 0) + endif() + endif() +endmacro() |