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| 1 | +# =========================================================================== |
| 2 | +# http://www.gnu.org/software/autoconf-archive/ax_append_compile_flags.html |
| 3 | +# =========================================================================== |
| 4 | +# |
| 5 | +# SYNOPSIS |
| 6 | +# |
| 7 | +# AX_APPEND_COMPILE_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS]) |
| 8 | +# |
| 9 | +# DESCRIPTION |
| 10 | +# |
| 11 | +# For every FLAG1, FLAG2 it is checked whether the compiler works with the |
| 12 | +# flag. If it does, the flag is added FLAGS-VARIABLE |
| 13 | +# |
| 14 | +# If FLAGS-VARIABLE is not specified, the current language's flags (e.g. |
| 15 | +# CFLAGS) is used. During the check the flag is always added to the |
| 16 | +# current language's flags. |
| 17 | +# |
| 18 | +# If EXTRA-FLAGS is defined, it is added to the current language's default |
| 19 | +# flags (e.g. CFLAGS) when the check is done. The check is thus made with |
| 20 | +# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to |
| 21 | +# force the compiler to issue an error when a bad flag is given. |
| 22 | +# |
| 23 | +# NOTE: This macro depends on the AX_APPEND_FLAG and |
| 24 | +# AX_CHECK_COMPILE_FLAG. Please keep this macro in sync with |
| 25 | +# AX_APPEND_LINK_FLAGS. |
| 26 | +# |
| 27 | +# LICENSE |
| 28 | +# |
| 29 | +# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> |
| 30 | +# |
| 31 | +# This program is free software: you can redistribute it and/or modify it |
| 32 | +# under the terms of the GNU General Public License as published by the |
| 33 | +# Free Software Foundation, either version 3 of the License, or (at your |
| 34 | +# option) any later version. |
| 35 | +# |
| 36 | +# This program is distributed in the hope that it will be useful, but |
| 37 | +# WITHOUT ANY WARRANTY; without even the implied warranty of |
| 38 | +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
| 39 | +# Public License for more details. |
| 40 | +# |
| 41 | +# You should have received a copy of the GNU General Public License along |
| 42 | +# with this program. If not, see <http://www.gnu.org/licenses/>. |
| 43 | +# |
| 44 | +# As a special exception, the respective Autoconf Macro's copyright owner |
| 45 | +# gives unlimited permission to copy, distribute and modify the configure |
| 46 | +# scripts that are the output of Autoconf when processing the Macro. You |
| 47 | +# need not follow the terms of the GNU General Public License when using |
| 48 | +# or distributing such scripts, even though portions of the text of the |
| 49 | +# Macro appear in them. The GNU General Public License (GPL) does govern |
| 50 | +# all other use of the material that constitutes the Autoconf Macro. |
| 51 | +# |
| 52 | +# This special exception to the GPL applies to versions of the Autoconf |
| 53 | +# Macro released by the Autoconf Archive. When you make and distribute a |
| 54 | +# modified version of the Autoconf Macro, you may extend this special |
| 55 | +# exception to the GPL to apply to your modified version as well. |
| 56 | + |
| 57 | +#serial 3 |
| 58 | + |
| 59 | +AC_DEFUN([AX_APPEND_COMPILE_FLAGS], |
| 60 | +[AC_REQUIRE([AX_CHECK_COMPILE_FLAG]) |
| 61 | +AC_REQUIRE([AX_APPEND_FLAG]) |
| 62 | +for flag in $1; do |
| 63 | + AX_CHECK_COMPILE_FLAG([$flag], [AX_APPEND_FLAG([$flag], [$2])], [], [$3]) |
| 64 | +done |
| 65 | +])dnl AX_APPEND_COMPILE_FLAGS |
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