pkg.m4.in: Check if $pkg_cv_[]$1[]_LIBS works
It is quite normal to have headers without library on multilib OSes. Add AC_TRY_LINK to PKG_CHECK_MODULES to check if $pkg_cv_[]$1[]_LIBS works.
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It is quite normal to have headers without library on multilib OSes. Add AC_TRY_LINK to PKG_CHECK_MODULES to check if $pkg_cv_[]$1[]_LIBS works.