Mercurial > hg > sonic-annotator
comparison acinclude.m4 @ 362:9d547101e7cd
Add missing macro, regenerate
author | Chris Cannam |
---|---|
date | Tue, 28 Jan 2020 14:08:17 +0000 |
parents | 6153429ebf89 |
children |
comparison
equal
deleted
inserted
replaced
361:7e6e3a27d63e | 362:9d547101e7cd |
---|---|
259 | 259 |
260 AC_SUBST(HAVE_CXX11) | 260 AC_SUBST(HAVE_CXX11) |
261 fi | 261 fi |
262 ]) | 262 ]) |
263 | 263 |
264 | |
265 # =========================================================================== | |
266 # https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html | |
267 # =========================================================================== | |
268 # | |
269 # SYNOPSIS | |
270 # | |
271 # AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) | |
272 # | |
273 # DESCRIPTION | |
274 # | |
275 # Check whether the given FLAG works with the current language's compiler | |
276 # or gives an error. (Warnings, however, are ignored) | |
277 # | |
278 # ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on | |
279 # success/failure. | |
280 # | |
281 # If EXTRA-FLAGS is defined, it is added to the current language's default | |
282 # flags (e.g. CFLAGS) when the check is done. The check is thus made with | |
283 # the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to | |
284 # force the compiler to issue an error when a bad flag is given. | |
285 # | |
286 # INPUT gives an alternative input source to AC_COMPILE_IFELSE. | |
287 # | |
288 # NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this | |
289 # macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG. | |
290 # | |
291 # LICENSE | |
292 # | |
293 # Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> | |
294 # Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> | |
295 # | |
296 # Copying and distribution of this file, with or without modification, are | |
297 # permitted in any medium without royalty provided the copyright notice | |
298 # and this notice are preserved. This file is offered as-is, without any | |
299 # warranty. | |
300 | |
301 AC_DEFUN([AX_CHECK_COMPILE_FLAG], | |
302 [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF | |
303 AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl | |
304 AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ | |
305 ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS | |
306 _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" | |
307 AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], | |
308 [AS_VAR_SET(CACHEVAR,[yes])], | |
309 [AS_VAR_SET(CACHEVAR,[no])]) | |
310 _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) | |
311 AS_VAR_IF(CACHEVAR,yes, | |
312 [m4_default([$2], :)], | |
313 [m4_default([$3], :)]) | |
314 AS_VAR_POPDEF([CACHEVAR])dnl | |
315 ])dnl AX_CHECK_COMPILE_FLAGS |