https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113192
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- What about: --- libgomp/configure.ac.jj 2023-11-02 07:49:21.693801244 +0100 +++ libgomp/configure.ac 2024-01-08 21:46:21.014765685 +0100 @@ -343,7 +343,7 @@ AX_COUNT_CPUS AC_CHECK_PROGS(FLOCK, flock) # Fallback if 'perl' is available. if test -z "$FLOCK"; then - AC_CHECK_PROG(FLOCK, perl, $srcdir/testsuite/flock) + AC_CHECK_PROG(FLOCK, perl, \$(abs_top_srcdir)/testsuite/flock) fi AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) --- libgomp/configure.jj 2024-01-06 02:29:24.566795886 +0100 +++ libgomp/configure 2024-01-08 21:46:23.799726387 +0100 @@ -16655,7 +16655,7 @@ do test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then - ac_cv_prog_FLOCK="$srcdir/testsuite/flock" + ac_cv_prog_FLOCK="\$(abs_top_srcdir)/testsuite/flock" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi