The autoconf macro PKG_CHECK_MODULES defined in config/pkg.m4 is used in binutils/gdb, but not in GCC. That macro uses the obsolete AC_TRY_LINK[1]. Update the code to use AC_LINK_IFELSE as documented by autoconf.
Regenerating all autotool files in both trees shows no difference. [1] https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html#index-AC_005fTRY_005fLINK-2207 config/ChangeLog: * pkg.m4 (PKG_CHECK_MODULES): Replace AC_TRY_LINK with AC_LINK_IFELSE. Signed-off-by: Pietro Monteiro <pie...@sociotechnical.xyz> --- config/pkg.m4 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/config/pkg.m4 b/config/pkg.m4 index 7ebf517cd6a..cc15588a05c 100644 --- a/config/pkg.m4 +++ b/config/pkg.m4 @@ -151,7 +151,7 @@ dnl Check whether $pkg_cv_[]$1[]_LIBS works. if test $pkg_failed = no; then pkg_save_LDFLAGS="$LDFLAGS" LDFLAGS="$LDFLAGS $pkg_cv_[]$1[]_LIBS" - AC_TRY_LINK([],[], [], [pkg_failed=yes]) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[],[pkg_failed=yes]) LDFLAGS=$pkg_save_LDFLAGS fi -- 2.43.0
