dnl Check if the flag is supported by linker (cacheable)

dnl CC_CHECK_LDFLAGS([FLAG], [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND])

dnl

dnl Origin (declared license: GPLv2+ with less restrictive exception):

dnl https://git.gnome.org/browse/glib/tree/m4macros/attributes.m4?h=2.49.1

dnl (AC_LANG_PROGRAM substituted by Jan Pokorny <jpokorny@redhat.com>)

AC_DEFUN([CC_CHECK_LDFLAGS], [

  AC_CACHE_CHECK([if $CC supports $1 flag],

    AS_TR_SH([cc_cv_ldflags_$1]),

    [ac_save_LDFLAGS="$LDFLAGS"

     LDFLAGS="$LDFLAGS $1"

     AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],

       [eval "AS_TR_SH([cc_cv_ldflags_$1])='yes'"],

       [eval "AS_TR_SH([cc_cv_ldflags_$1])="])

     LDFLAGS="$ac_save_LDFLAGS"

    ])

  AS_IF([eval test x$]AS_TR_SH([cc_cv_ldflags_$1])[ = xyes],

    [$2], [$3])

])