ref: 02ebb9f0fc4d67cb3f1ac4c2283664340510fd68
dir: /m4/ax_require_defined.m4/
# =========================================================================== # https://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 2 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