From dec783dce5a7131e232a06e63a544645b5463dd8 Mon Sep 17 00:00:00 2001 From: Guillem Jover Date: Sun, 12 Feb 2023 23:55:09 +0100 Subject: [PATCH] build: Fix version script linker support detection When the linker uses --no-undefined-version either specified by the user or as the default behavior (such as with newer clang >= 16 releases), a missing symbol definition will cause a linker error if that symbol is listed in the version script. Upstream commit: https://gitlab.freedesktop.org/libbsd/libbsd/-/commit/dec783dce5a7131e232a06e63a544645b5463dd8 --- configure.ac | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 17d113c..7d17a93 100644 --- a/configure.ac +++ b/configure.ac @@ -33,7 +33,11 @@ AC_CACHE_CHECK([if ld supports --version-script flag], save_LDFLAGS=$LDFLAGS LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" AC_LINK_IFELSE([ - AC_LANG_PROGRAM([], []) + AC_LANG_PROGRAM([[ +extern int symbol(void); +int symbol(void) { return 0; } +]], [[ +]]) ], [ libbsd_cv_version_script=yes ], [ -- 2.39.1.615.ga0422de7ea.dirty