The following issue has been SUBMITTED.
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http://public.kitware.com/Bug/view.php?id=12633
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Reported By: hrogge
Assigned To:
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Project: CMake
Issue ID: 12633
Category: CMake
Reproducibility: always
Severity: major
Priority: normal
Status: new
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Date Submitted: 2011-12-18 14:11 EST
Last Modified: 2011-12-18 14:11 EST
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Summary: GCC fails some flags with "is valid for C++/ObjC++
but not for C"
Description:
GCC has some flags that are valid for C++, but not for C. The different warning
message breaks the CHECK_C_COMPILER_FLAG macro.
Suggestion: add
'FAIL_REGEX "but not for C" # GNU'
to CheckCCompilerFlag.cmake
Steps to Reproduce:
compile "int main(void) { return 0 };" on gcc 4.4.5 with -Wenum-compare:
/usr/bin/gcc -Wenum-compare -o test.o -c test.c
cc1: warning: command line option "-Wenum-compare" is valid for C++/ObjC++ but
not for C
Additional Information:
Combined with ADD_DEFINITIONS(-Werror) this can break the build process. The
CheckCCompilerFlag does not recognize that -Wenum-compare is not available,
-Werror stops the build process.
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Issue History
Date Modified Username Field Change
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2011-12-18 14:11 hrogge New Issue
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