Fix detection of <libintl.h> for windows cross-compile environment.
It is not available in a plain Ubuntu 18.04 mingw-w64 cross-compile package, so configure must correctly detect that it is not there. It is available in the gnucash jhbuild env, though. This should better be detected correctly.
Fix detection of <libintl.h> for windows cross-compile environment.
It is not available in a plain Ubuntu 18.04 mingw-w64 cross-compile
package, so configure must correctly detect that it is not there.
It is available in the gnucash jhbuild env, though. This should
better be detected correctly.