如何让CHECK_CXX_COMPILER_FLAG在非法价值上失败？
如何让CHECK_CXX_COMPILER_FLAG在非法价值上失败？
提问于 2017-08-26 14:14:09
我们的CMakeFile.txt包含SunCC代码路径的以下内容。SunCC使用的是-xarch=XXX而不是GCC风格的-mXXX。
CHECK_CXX_COMPILER_FLAG("-xarch=sha" CRYPTOPP_IA32_SHA)当我们在Sun的编译器下运行CMake时，它的结果是：
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Performing Test CRYPTOPP_IA32_SSSE3
-- Performing Test CRYPTOPP_IA32_SSSE3 - Success
-- Performing Test CRYPTOPP_IA32_SSE4
-- Performing Test CRYPTOPP_IA32_SSE4 - Success
-- Performing Test CRYPTOPP_IA32_CLMUL
-- Performing Test CRYPTOPP_IA32_CLMUL - Success
-- Performing Test CRYPTOPP_IA32_AES
-- Performing Test CRYPTOPP_IA32_AES - Success
-- Performing Test CRYPTOPP_IA32_SHA
-- Performing Test CRYPTOPP_IA32_SHA - Success
...但是，当我们编译它时，结果是：
$ make sha-simd.o shacal2-simd.o VERBOSE=1
make -f CMakeFiles/cryptopp-object.dir/build.make CMakeFiles/cryptopp-object.dir/sha-simd.cpp.o
Building CXX object CMakeFiles/cryptopp-object.dir/sha-simd.cpp.o
/opt/solarisstudio12.4/bin/CC -m32 -template=no%extdef -g -xO2 -DNDEBUG -xarch=sha -o CMakeFiles/cryptopp-object.dir/sha-simd.cpp.o -c /export/home/test/sha-simd.cpp
CC: Warning: illegal use of -xarch option, illegal value ignored: sha
make -f CMakeFiles/cryptopp-object.dir/build.make CMakeFiles/cryptopp-object.dir/shacal2-simd.cpp.o
Building CXX object CMakeFiles/cryptopp-object.dir/shacal2-simd.cpp.o
/opt/solarisstudio12.4/bin/CC -m32 -template=no%extdef -g -xO2 -DNDEBUG -xarch=sha -o CMakeFiles/cryptopp-object.dir/shacal2-simd.cpp.o -c /export/home/test/shacal2-simd.cpp
CC: Warning: illegal use of -xarch option, illegal value ignored: sha添加SunCC的-errwarn和-errwarn=%all并不能帮助CMake检测故障。
这条消息可能会给用户带来很多问题。它也违反了我们对清理编译的治理。我们想把它清理干净，避免任何麻烦。
我们如何告诉CMake不通过非法值的CHECK_CXX_COMPILER_FLAG测试？
回答 1
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/45896327
复制相关文章
相似问题
腾讯云开发者
