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authorBrad King <brad.king@kitware.com>2008-07-17 19:19:25 (GMT)
committerBrad King <brad.king@kitware.com>2008-07-17 19:19:25 (GMT)
commit129f3bef2d7af0f1c5beec788dc64fcd20b21b0b (patch)
treefb8a0684c6d0bf3bcc23d2ea3baf55dc93d25374 /Utilities
parenteb8567692872e14ff865b7bb060250f955a2dd03 (diff)
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COMP: Check for -Wno-long-double before using
Older GCC on the Mac warns for use of long double, so we use -Wno-long-double. Newer GCC on the Mac does not have this flag and gives an error. We now check for the flag before using it. See bug #7357.
Diffstat (limited to 'Utilities')
-rw-r--r--Utilities/cmcurl/CMakeLists.txt22
1 files changed, 13 insertions, 9 deletions
diff --git a/Utilities/cmcurl/CMakeLists.txt b/Utilities/cmcurl/CMakeLists.txt
index 3ed177f..d2f319d 100644
--- a/Utilities/cmcurl/CMakeLists.txt
+++ b/Utilities/cmcurl/CMakeLists.txt
@@ -675,15 +675,19 @@ ELSE(RETSIGTYPE_TEST)
ENDIF(RETSIGTYPE_TEST)
IF(CMAKE_COMPILER_IS_GNUCC AND APPLE)
- # The Mac version of GCC warns about use of long double. Disable it.
- GET_SOURCE_FILE_PROPERTY(MPRINTF_COMPILE_FLAGS mprintf.c COMPILE_FLAGS)
- IF(MPRINTF_COMPILE_FLAGS)
- SET(MPRINTF_COMPILE_FLAGS "${MPRINTF_COMPILE_FLAGS} -Wno-long-double")
- ELSE(MPRINTF_COMPILE_FLAGS)
- SET(MPRINTF_COMPILE_FLAGS "-Wno-long-double")
- ENDIF(MPRINTF_COMPILE_FLAGS)
- SET_SOURCE_FILES_PROPERTIES(mprintf.c PROPERTIES
- COMPILE_FLAGS ${MPRINTF_COMPILE_FLAGS})
+ INCLUDE(CheckCCompilerFlag)
+ CHECK_C_COMPILER_FLAG(-Wno-long-double HAVE_C_FLAG_Wno_long_double)
+ IF(HAVE_C_FLAG_Wno_long_double)
+ # The Mac version of GCC warns about use of long double. Disable it.
+ GET_SOURCE_FILE_PROPERTY(MPRINTF_COMPILE_FLAGS mprintf.c COMPILE_FLAGS)
+ IF(MPRINTF_COMPILE_FLAGS)
+ SET(MPRINTF_COMPILE_FLAGS "${MPRINTF_COMPILE_FLAGS} -Wno-long-double")
+ ELSE(MPRINTF_COMPILE_FLAGS)
+ SET(MPRINTF_COMPILE_FLAGS "-Wno-long-double")
+ ENDIF(MPRINTF_COMPILE_FLAGS)
+ SET_SOURCE_FILES_PROPERTIES(mprintf.c PROPERTIES
+ COMPILE_FLAGS ${MPRINTF_COMPILE_FLAGS})
+ ENDIF(HAVE_C_FLAG_Wno_long_double)
ENDIF(CMAKE_COMPILER_IS_GNUCC AND APPLE)
INCLUDE(CMake/OtherTests.cmake)