| # =========================================================================== |
| # http://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html |
| # =========================================================================== |
| # |
| # SYNOPSIS |
| # |
| # AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS]) |
| # |
| # DESCRIPTION |
| # |
| # For every FLAG1, FLAG2 it is checked whether the linker works with the |
| # flag. If it does, the flag is added FLAGS-VARIABLE |
| # |
| # If FLAGS-VARIABLE is not specified, the linker's flags (LDFLAGS) is |
| # used. During the check the flag is always added to the linker's flags. |
| # |
| # If EXTRA-FLAGS is defined, it is added to the linker's default flags |
| # when the check is done. The check is thus made with the flags: "LDFLAGS |
| # EXTRA-FLAGS FLAG". This can for example be used to force the linker to |
| # issue an error when a bad flag is given. |
| # |
| # NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_LINK_FLAG. |
| # Please keep this macro in sync with AX_APPEND_COMPILE_FLAGS. |
| # |
| # LICENSE |
| # |
| # Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> |
| # |
| # This program is free software: you can redistribute it and/or modify it |
| # under the terms of the GNU General Public License as published by the |
| # Free Software Foundation, either version 3 of the License, or (at your |
| # option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, but |
| # WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
| # Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License along |
| # with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| # As a special exception, the respective Autoconf Macro's copyright owner |
| # gives unlimited permission to copy, distribute and modify the configure |
| # scripts that are the output of Autoconf when processing the Macro. You |
| # need not follow the terms of the GNU General Public License when using |
| # or distributing such scripts, even though portions of the text of the |
| # Macro appear in them. The GNU General Public License (GPL) does govern |
| # all other use of the material that constitutes the Autoconf Macro. |
| # |
| # This special exception to the GPL applies to versions of the Autoconf |
| # Macro released by the Autoconf Archive. When you make and distribute a |
| # modified version of the Autoconf Macro, you may extend this special |
| # exception to the GPL to apply to your modified version as well. |
| |
| #serial 4 |
| |
| AC_DEFUN([AX_APPEND_LINK_FLAGS], |
| [AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG]) |
| AX_REQUIRE_DEFINED([AX_APPEND_FLAG]) |
| for flag in $1; do |
| AX_CHECK_LINK_FLAG([$flag], [AX_APPEND_FLAG([$flag], [m4_default([$2], [LDFLAGS])])], [], [$3]) |
| done |
| ])dnl AX_APPEND_LINK_FLAGS |