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| author | Brad King <brad.king@kitware.com> | 2015-06-18 10:57:46 -0400 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2015-06-18 10:59:35 -0400 |
| commit | c65a060e1b19a463312f9003bc4d7793db9630e5 (patch) | |
| tree | 823f62c243e129b6cd7e0f8cee4e0d807dd0b56c | |
| parent | e2e6cb7348dfffddb5d93f679fc8c69fffd3d1dc (diff) | |
| download | cmake-c65a060e1b19a463312f9003bc4d7793db9630e5.tar.gz | |
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.
| -rw-r--r-- | Modules/CMakeDetermineCCompiler.cmake | 1 | ||||
| -rw-r--r-- | Modules/CMakeDetermineCXXCompiler.cmake | 1 | ||||
| -rw-r--r-- | Modules/CMakeDetermineCompilerId.cmake | 4 | ||||
| -rw-r--r-- | Modules/CMakeDetermineFortranCompiler.cmake | 1 |
4 files changed, 6 insertions, 1 deletions
diff --git a/Modules/CMakeDetermineCCompiler.cmake b/Modules/CMakeDetermineCCompiler.cmake index 937aa8c3ef..40d4ce6c32 100644 --- a/Modules/CMakeDetermineCCompiler.cmake +++ b/Modules/CMakeDetermineCCompiler.cmake @@ -80,6 +80,7 @@ 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_C_COMPILER_ID_TEST_FLAGS_FIRST) set(CMAKE_C_COMPILER_ID_TEST_FLAGS # Try compiling to an object file only. "-c" diff --git a/Modules/CMakeDetermineCXXCompiler.cmake b/Modules/CMakeDetermineCXXCompiler.cmake index 893c454ccc..a673525a82 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" diff --git a/Modules/CMakeDetermineCompilerId.cmake b/Modules/CMakeDetermineCompilerId.cmake index 403ac089a3..7ddf33fcf6 100644 --- a/Modules/CMakeDetermineCompilerId.cmake +++ b/Modules/CMakeDetermineCompilerId.cmake @@ -34,7 +34,9 @@ function(CMAKE_DETERMINE_COMPILER_ID lang flagvar src) # Try building with no extra flags and then try each set # of helper flags. Stop when the compiler is identified. - foreach(flags "" ${CMAKE_${lang}_COMPILER_ID_TEST_FLAGS}) + foreach(flags ${CMAKE_${lang}_COMPILER_ID_TEST_FLAGS_FIRST} + "" + ${CMAKE_${lang}_COMPILER_ID_TEST_FLAGS}) if(NOT CMAKE_${lang}_COMPILER_ID) CMAKE_DETERMINE_COMPILER_ID_BUILD("${lang}" "${flags}" "${src}") foreach(file ${COMPILER_${lang}_PRODUCED_FILES}) diff --git a/Modules/CMakeDetermineFortranCompiler.cmake b/Modules/CMakeDetermineFortranCompiler.cmake index 3a27127e2b..ca68900a5c 100644 --- a/Modules/CMakeDetermineFortranCompiler.cmake +++ b/Modules/CMakeDetermineFortranCompiler.cmake @@ -98,6 +98,7 @@ 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 executable. + set(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS_FIRST) set(CMAKE_Fortran_COMPILER_ID_TEST_FLAGS # Try compiling to an object file only. "-c" |