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authorBrad King <brad.king@kitware.com>2015-06-18 14:57:46 (GMT)
committerBrad King <brad.king@kitware.com>2015-06-18 14:59:35 (GMT)
commitc65a060e1b19a463312f9003bc4d7793db9630e5 (patch)
tree823f62c243e129b6cd7e0f8cee4e0d807dd0b56c /Modules/CMakeDetermineCXXCompiler.cmake
parente2e6cb7348dfffddb5d93f679fc8c69fffd3d1dc (diff)
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CMakeDetermineCompilerId: Optionally try some flags before no flags
Teach CMAKE_DETERMINE_COMPILER_ID to optionally try detecting the compiler id using some given flags before trying to detect it with no special flags. This will be useful for Fortran detection to distinguish some compilers that use the preprocessors of others but have no macro of their own by getting verbose output.
Diffstat (limited to 'Modules/CMakeDetermineCXXCompiler.cmake')
-rw-r--r--Modules/CMakeDetermineCXXCompiler.cmake1
1 files changed, 1 insertions, 0 deletions
diff --git a/Modules/CMakeDetermineCXXCompiler.cmake b/Modules/CMakeDetermineCXXCompiler.cmake
index 893c454..a673525 100644
--- a/Modules/CMakeDetermineCXXCompiler.cmake
+++ b/Modules/CMakeDetermineCXXCompiler.cmake
@@ -78,6 +78,7 @@ else()
# Each entry in this list is a set of extra flags to try
# adding to the compile line to see if it helps produce
# a valid identification file.
+ set(CMAKE_CXX_COMPILER_ID_TEST_FLAGS_FIRST)
set(CMAKE_CXX_COMPILER_ID_TEST_FLAGS
# Try compiling to an object file only.
"-c"