_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+dnl Check whether $pkg_cv_[]$1[]_LIBS works.
+if test $pkg_failed = no; then
+ pkg_save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS $pkg_cv_[]$1[]_LIBS"
+ AC_TRY_LINK([],[], [], [pkg_failed=yes])
+ LDFLAGS=$pkg_save_LDFLAGS
+fi
+
m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
and $1[]_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.])