mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-03 09:01:54 -05:00
38 lines
1.2 KiB
Text
38 lines
1.2 KiB
Text
|
# ===========================================================================
|
||
|
|
# http://www.gnu.org/software/autoconf-archive/ax_require_defined.html
|
||
|
|
# ===========================================================================
|
||
|
|
#
|
||
|
|
# SYNOPSIS
|
||
|
|
#
|
||
|
|
# AX_REQUIRE_DEFINED(MACRO)
|
||
|
|
#
|
||
|
|
# DESCRIPTION
|
||
|
|
#
|
||
|
|
# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
|
||
|
|
# been defined and thus are available for use. This avoids random issues
|
||
|
|
# where a macro isn't expanded. Instead the configure script emits a
|
||
|
|
# non-fatal:
|
||
|
|
#
|
||
|
|
# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
|
||
|
|
#
|
||
|
|
# It's like AC_REQUIRE except it doesn't expand the required macro.
|
||
|
|
#
|
||
|
|
# Here's an example:
|
||
|
|
#
|
||
|
|
# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
|
||
|
|
#
|
||
|
|
# LICENSE
|
||
|
|
#
|
||
|
|
# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
|
||
|
|
#
|
||
|
|
# Copying and distribution of this file, with or without modification, are
|
||
|
|
# permitted in any medium without royalty provided the copyright notice
|
||
|
|
# and this notice are preserved. This file is offered as-is, without any
|
||
|
|
# warranty.
|
||
|
|
|
||
|
|
#serial 1
|
||
|
|
|
||
|
|
AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
|
||
|
|
m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
|
||
|
|
])dnl AX_REQUIRE_DEFINED
|