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CMakeDetermineCompilerId: Fix Intel Fortran compiler id detection

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The Intel Fortran compiler needs the /fpp option to enable C
preprocessing.  Without the option the compiler may warn and ignore
preprocessor lines instead of failing with an error.  Detect the
warning and treat it as failure so that we move on to try /fpp and
detect the correct id.  Without this it works only by luck because
Intel is the first compiler id in our detection source file.
This commit is contained in:
Brad King 2013-10-11 10:40:18 -04:00
parent a6fd17ce50
commit 2d36c9ab60
1 changed files with 4 additions and 1 deletions
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5
Modules/CMakeDetermineCompilerId.cmake
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@ -248,7 +248,10 @@ Id flags: ${testflags}
endif()
# Check the result of compilation.
if(CMAKE_${lang}_COMPILER_ID_RESULT)
if(CMAKE_${lang}_COMPILER_ID_RESULT
# Intel Fortran warns and ignores preprocessor lines without /fpp
OR CMAKE_${lang}_COMPILER_ID_OUTPUT MATCHES "Bad # preprocessor line"
)
# Compilation failed.
set(MSG
"Compiling the ${lang} compiler identification source file \"${src}\" failed.