C not enabled in the CMakeLists.txt?

[DJDavies2]

Using cmake 3.11.2, running with these options:

-DCMAKE_CXX_COMPILER="$HOME/installs/gcc/7.1.0/v1/bin/g++"
-DCMAKE_CXX_FLAGS="-g"
-DCMAKE_EXE_LINKER_FLAGS="-Wl,-rpath=$HOME/installs/gcc/7.1.0/v1/lib"
-DCMAKE_Fortran_COMPILER="$HOME/installs/gcc/7.1.0/v1/bin/gfortran"
-DCMAKE_Fortran_FLAGS="-fbacktrace -g"
-DCMAKE_INSTALL_PREFIX=$HOME/installs/oops-stuff/fckit
-DCMAKE_MODULE_PATH=$HOME/installs/oops-stuff/ecbuild/share/ecbuild/cmake
-DECKIT_PATH=$HOME/installs/oops-stuff/eckit

gets this in the output:

-- Looking for sys/types.h
CMake Error at /home/david/installs/oops-stuff/cmake/share/cmake-3.11/Modules/CheckIncludeFile.cmake:58 (try_compile):
Unknown extension ".c" for file

/home/david/src/oops-stuff/fckit/fckit-build/CMakeFiles/CMakeTmp/CheckIncludeFile.c

try_compile() works only for enabled languages. Currently these are:

CXX Fortran

See project() command to enable other languages.
Call Stack (most recent call first):
/home/david/installs/oops-stuff/cmake/share/cmake-3.11/Modules/CheckTypeSize.cmake:225 (check_include_file)
/home/david/installs/oops-stuff/ecbuild/share/ecbuild/cmake/ecbuild_check_os.cmake:13 (check_type_size)
/home/david/installs/oops-stuff/ecbuild/share/ecbuild/cmake/ecbuild_system.cmake:236 (include)
CMakeLists.txt:22 (include)

-- Looking for sys/types.h - not found
-- Looking for stdint.h
CMake Error at /home/david/installs/oops-stuff/cmake/share/cmake-3.11/Modules/CheckIncludeFile.cmake:58 (try_compile):
Unknown extension ".c" for file

/home/david/src/oops-stuff/fckit/fckit-build/CMakeFiles/CMakeTmp/CheckIncludeFile.c

try_compile() works only for enabled languages. Currently these are:

CXX Fortran

See project() command to enable other languages.
Call Stack (most recent call first):
/home/david/installs/oops-stuff/cmake/share/cmake-3.11/Modules/CheckTypeSize.cmake:226 (check_include_file)
/home/david/installs/oops-stuff/ecbuild/share/ecbuild/cmake/ecbuild_check_os.cmake:13 (check_type_size)
/home/david/installs/oops-stuff/ecbuild/share/ecbuild/cmake/ecbuild_system.cmake:236 (include)
CMakeLists.txt:22 (include)

-- Looking for stdint.h - not found
-- Looking for stddef.h
CMake Error at /home/david/installs/oops-stuff/cmake/share/cmake-3.11/Modules/CheckIncludeFile.cmake:58 (try_compile):
Unknown extension ".c" for file

/home/david/src/oops-stuff/fckit/fckit-build/CMakeFiles/CMakeTmp/CheckIncludeFile.c

try_compile() works only for enabled languages. Currently these are:

CXX Fortran

See project() command to enable other languages.
Call Stack (most recent call first):
/home/david/installs/oops-stuff/cmake/share/cmake-3.11/Modules/CheckTypeSize.cmake:227 (check_include_file)
/home/david/installs/oops-stuff/ecbuild/share/ecbuild/cmake/ecbuild_check_os.cmake:13 (check_type_size)
/home/david/installs/oops-stuff/ecbuild/share/ecbuild/cmake/ecbuild_system.cmake:236 (include)
CMakeLists.txt:22 (include)

-- Looking for stddef.h - not found
-- Check size of void*
CMake Error at /home/david/installs/oops-stuff/cmake/share/cmake-3.11/Modules/CheckTypeSize.cmake:116 (try_compile):
Unknown extension ".c" for file

/home/david/src/oops-stuff/fckit/fckit-build/CMakeFiles/CheckTypeSize/CMAKE_SIZEOF_VOID_P.c

try_compile() works only for enabled languages. Currently these are:

CXX Fortran

See project() command to enable other languages.
Call Stack (most recent call first):
/home/david/installs/oops-stuff/cmake/share/cmake-3.11/Modules/CheckTypeSize.cmake:241 (__check_type_size_impl)
/home/david/installs/oops-stuff/ecbuild/share/ecbuild/cmake/ecbuild_check_os.cmake:13 (check_type_size)
/home/david/installs/oops-stuff/ecbuild/share/ecbuild/cmake/ecbuild_system.cmake:236 (include)
CMakeLists.txt:22 (include)

and the cmake command carries on but ultimately fails.

[wdeconinck]

Merged and released in version 0.5.1