Can't specify a version if pkg-config is available

[eugpermar]

Currently, mklove skips checks if the library is found via pkg-config. In particular, I'm trying to check that a library has a specific version, or if it has a specific symbol.

Trying to do version checking:

mkl_lib_check --static=-lyajl "yajl" "" fail CC "-lyajl" \
       "#include <yajl_version.h>
#if YAJL_MAYOR < 2 || YAJL_MINOR < 1
#error Need yajl library version >=2.1.0
#endif"

However, yajl version is being accepted via pkg-config, and skipping check. I think that mklove should provide an interface to call pkg-config --modversion and, ideally, --atleast-version, --exact-version and --max-version.

Another solution, maybe more generic and fast to implement, could be to force the check even if the pkg-config has found the library.

If you choose an option or provide me a better one, I can send you a PR.

[edenhill]

Would having a --pkg-config-flags="--atleast-version X ... .." flag to mkl_lib_check be sufficient?

[edenhill]

I think your second solution is good too, that should be fixed either way.

[eugpermar]

All solutions are fine for me, but I think that force the check using pkg-config provided cflags and libs is the best solution. If you think it's ok, I will go with it.