Paul Eggert wrote: > + * m4/getopt.m4 (gl_GETOPT_SUBSTITUTE_HEADER): > + * m4/sched_h.m4 (gl_SCHED_H): Use the new macro > + gl_CHECK_HEADER_SYS_CDEFS_H instead of checking independently. > + * m4/sys_cdefs_h.m4: New file.
Running './bootstrap' in diffutils, I see a warning: autoreconf: running: /darch/x86_64-linux-gnu/gnu/bin/autoconf --include=m4 --force configure.ac:43: warning: AC_REQUIRE: 'gl_CHECK_HEADER_SYS_CDEFS_H' was expanded before it was required configure.ac:43: https://www.gnu.org/software/autoconf/manual/autoconf.html#Expanded-Before-Required m4/gnulib-comp.m4:699: gl_INIT is expanded from... configure.ac:43: the top level This patch fixes it. 2024-05-21 Bruno Haible <br...@clisp.org> Fix "'gl_CHECK_HEADER_SYS_CDEFS_H' was expanded before it was required". * m4/sys_cdefs_h.m4 (gl_CHECK_HEADER_SYS_CDEFS_H): Define through AC_DEFUN_ONCE. diff --git a/m4/sys_cdefs_h.m4 b/m4/sys_cdefs_h.m4 index 069146d438..22fa6c3849 100644 --- a/m4/sys_cdefs_h.m4 +++ b/m4/sys_cdefs_h.m4 @@ -1,5 +1,5 @@ # sys_cdefs_h.m4 - Is <sys/cdefs.h> compatible enough with glibc? -# serial 1 +# serial 2 dnl Copyright 2024 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -7,7 +7,7 @@ dnl Written by Paul Eggert. -AC_DEFUN([gl_CHECK_HEADER_SYS_CDEFS_H], +AC_DEFUN_ONCE([gl_CHECK_HEADER_SYS_CDEFS_H], [AC_CACHE_CHECK([for glibc-compatible sys/cdefs.h], [gl_cv_header_sys_cdefs_h], [AC_COMPILE_IFELSE(
