mirror of
https://github.com/ceph/ceph
synced 2025-02-19 08:57:27 +00:00
af6bb91505
if we set the CFLAGS globally, and the CFLAGS contains options
only acceptable by a certain C compiler, RocksDB could fail to
configure. for instance, if we set CXXFLAGS so it contains
`--config /usr/lib/rpm/redhat/redhat-hardened-clang.cfg` and use clang++
as the CMAKE_CXX_COMPILER, while keep CMAKE_C_COMPILER unchanged.
RocksDB would fail to configure like:
```-- Check for working C compiler: /usr/bin/cc - broken
CMake Error at /usr/share/cmake/Modules/CMakeTestCCompiler.cmake:67 (message):
The C compiler
"/usr/bin/cc"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /home/jenkins-build/build/workspace/ceph-dev-new-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos9/DIST/centos9/MACHINE_SIZE/gigantic/release/19.0.0-1717-g0f726187/rpm/el9/BUILD/ceph-19.0.0-1717-g0f726187/redhat-linux-build/src/rocksdb/CMakeFiles/CMakeScratch/TryCompile-RU5UFV
Run Build Command(s):/usr/bin/cmake -E env VERBOSE=1 /usr/bin/gmake -f Makefile cmTC_65e36/fast && gmake[3]: Entering directory '/home/jenkins-build/build/workspace/ceph-dev-new-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos9/DIST/centos9/MACHINE_SIZE/gigantic/release/19.0.0-1717-g0f726187/rpm/el9/BUILD/ceph-19.0.0-1717-g0f726187/redhat-linux-build/src/rocksdb/CMakeFiles/CMakeScratch/TryCompile-RU5UFV'
/usr/bin/gmake -f CMakeFiles/cmTC_65e36.dir/build.make CMakeFiles/cmTC_65e36.dir/build
gmake[4]: Entering directory '/home/jenkins-build/build/workspace/ceph-dev-new-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos9/DIST/centos9/MACHINE_SIZE/gigantic/release/19.0.0-1717-g0f726187/rpm/el9/BUILD/ceph-19.0.0-1717-g0f726187/redhat-linux-build/src/rocksdb/CMakeFiles/CMakeScratch/TryCompile-RU5UFV'
Building C object CMakeFiles/cmTC_65e36.dir/testCCompiler.c.o
/usr/bin/cc -O2 -flto=thin -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_GLIBCXX_ASSERTIONS --config /usr/lib/rpm/redhat/redhat-hardened-clang.cfg -fstack-protector-strong -m64 -march=x86-64-v2 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fPIE -o CMakeFiles/cmTC_65e36.dir/testCCompiler.c.o -c /home/jenkins-build/build/workspace/ceph-dev-new-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos9/DIST/centos9/MACHINE_SIZE/gigantic/release/19.0.0-1717-g0f726187/rpm/el9/BUILD/ceph-19.0.0-1717-g0f726187/redhat-linux-build/src/rocksdb/CMakeFiles/CMakeScratch/TryCompile-RU5UFV/testCCompiler.c
cc: error: unrecognized command-line option ‘--config’; did you mean ‘-mpconfig’?
gmake[4]: *** [CMakeFiles/cmTC_65e36.dir/build.make:78: CMakeFiles/cmTC_65e36.dir/testCCompiler.c.o] Error 1
```
where RocksDB tries to check C compiler -- /usr/bin/cc along with
the said CFLAGS, and fails to compile the test C program, because
GCC does not support this option.
so, in this change, let's pass the CMAKE_C_COMPILER as well.
Signed-off-by: Kefu Chai <tchaikov@gmail.com>
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