CMake: The C compiler is not able to compile a simple test program. Surprisingly C compiler identification is unknown but CXX is GNU 4.9.2

Question

I tried to compile a Thor library. It depends on SFML. I didnt had any problem with compiling SFGUI which also depends on SFML. Previously I used exactly the same toolchain. Everything worked fine

CMake gui errors:

The C compiler identification is unknown
The CXX compiler identification is GNU 4.9.2
Check for working C compiler: E:/Programs_Portable/Dev-Cpp/minGW32/bin/gcc.exe
Check for working C compiler: E:/Programs_Portable/Dev-Cpp/minGW32/bin/gcc.exe -- broken
CMake Error at C:/CMake/share/cmake-3.4/Modules/CMakeTestCCompiler.cmake:61 (message):
The C compiler "E:/Programs_Portable/Dev-Cpp/minGW32/bin/gcc.exe" is not able to compile a simple test program.

It fails with the following output:

Change Dir: D:/Michal/Pliki/thor-v2.0-sdk/build/CMakeFiles/CMakeTmp



Run Build
Command:"E:/Programs_Portable/Dev-Cpp/minGW32/bin/mingw32-make.exe"
"cmTC_6b11a/fast"

E:/Programs_Portable/Dev-Cpp/minGW32/bin/mingw32-make.exe -f
CMakeFiles\cmTC_6b11a.dir\build.make CMakeFiles/cmTC_6b11a.dir/build


mingw32-make.exe[1]: Entering directory
'D:/Michal/Pliki/thor-v2.0-sdk/build/CMakeFiles/CMakeTmp'


Building C object CMakeFiles/cmTC_6b11a.dir/testCCompiler.c.obj


E:\Programs_Portable\Dev-Cpp\minGW32\bin\gcc.exe -o
CMakeFiles\cmTC_6b11a.dir\testCCompiler.c.obj -c
D:\Michal\Pliki\thor-v2.0-sdk\build\CMakeFiles\CMakeTmp\testCCompiler.c


<built-in>: internal compiler error: Segmentation fault


libbacktrace could not find executable to open


Please submit a full bug report,


with preprocessed source if appropriate.


See <http://sourceforge.net/projects/mingw-w64> for instructions.


CMakeFiles\cmTC_6b11a.dir\build.make:64: recipe for target
'CMakeFiles/cmTC_6b11a.dir/testCCompiler.c.obj' failed


mingw32-make.exe[1]: *** [CMakeFiles/cmTC_6b11a.dir/testCCompiler.c.obj]
Error 1


mingw32-make.exe[1]: Leaving directory
'D:/Michal/Pliki/thor-v2.0-sdk/build/CMakeFiles/CMakeTmp'


makefile:125: recipe for target 'cmTC_6b11a/fast' failed


mingw32-make.exe: *** [cmTC_6b11a/fast] Error 2






CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:42 (project)


Configuring incomplete, errors occurred!
See also "D:/Michal/Pliki/thor-v2.0-sdk/build/CMakeFiles/CMakeOutput.log".
See also "D:/Michal/Pliki/thor-v2.0-sdk/build/CMakeFiles/CMakeError.log".

I tried compiling simple int main(){} . gcc works. All paths are as intended. (Btw I don't use DevCpp, its just the path to the compiler).

I am surprised because g++ works, CMake is able to display identification but apparently not for gcc

Thanks for any help

Answer 1

The message appears on Solus OS if you don't install the essential build packages.

CMake Error at /usr/share/cmake-3.12/Modules/CMakeTestCCompiler.cmake:52 (message):
The C compiler

   "/usr/bin/cc"

is not able to compile a simple test program.

You have to install the packages, using

sudo eopkg it -c system.devel

Then it works fine.

Answer 2

Fixed now by upgrading my GCC from 4.9.2 to 4.9.3. No more problems with crashing, however apparently there was a change related to C++11 standard and I need to manually edit CMakeLists.txt to change flag -std=c++11 to -std=gnu++11 when compiling any library and any program

MinGW / CxxTest bizarre errors

Edit: Switching/updating MinGW distro solved all problems. I tried updating the compiler to 7.2+/8.0+ versions and got rid of all confiuration problems. Likely it was a corrupted installaton or some older version bug