Lucas De Marchi | a968aa6 | 2015-06-07 01:15:30 -0300 | [diff] [blame] | 1 | # Copyright (c) 2015 Lucas De Marchi <lucas.de.marchi@gmail.com> |
| 2 | # |
| 3 | # This program is free software: you can redistribute it and/or modify it |
| 4 | # under the terms of the GNU General Public License as published by the |
| 5 | # Free Software Foundation, either version 2 of the License, or (at your |
| 6 | # option) any later version. |
| 7 | # |
| 8 | # This program is distributed in the hope that it will be useful, but |
| 9 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
| 11 | # Public License for more details. |
| 12 | # |
| 13 | # You should have received a copy of the GNU General Public License along |
| 14 | # with this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | # |
| 16 | # As a special exception, the respective Autoconf Macro's copyright owner |
| 17 | # gives unlimited permission to copy, distribute and modify the configure |
| 18 | # scripts that are the output of Autoconf when processing the Macro. You |
| 19 | # need not follow the terms of the GNU General Public License when using |
| 20 | # or distributing such scripts, even though portions of the text of the |
| 21 | # Macro appear in them. The GNU General Public License (GPL) does govern |
| 22 | # all other use of the material that constitutes the Autoconf Macro. |
| 23 | # |
| 24 | # This special exception to the GPL applies to versions of the Autoconf |
| 25 | # Macro released by the Autoconf Archive. When you make and distribute a |
| 26 | # modified version of the Autoconf Macro, you may extend this special |
| 27 | # exception to the GPL to apply to your modified version as well. |
| 28 | # |
| 29 | # CC_FEATURE_APPEND([FLAGS], [ENV-TO-CHECK], [FLAG-NAME]) |
| 30 | AC_DEFUN([CC_FEATURE_APPEND], [ |
| 31 | AS_VAR_PUSHDEF([FLAGS], [$1])dnl |
| 32 | AS_VAR_PUSHDEF([ENV_CHECK], [$2])dnl |
| 33 | AS_VAR_PUSHDEF([FLAG_NAME], [$3])dnl |
| 34 | |
| 35 | AS_CASE([" AS_VAR_GET(FLAGS) " ], |
| 36 | [*" FLAG_NAME "*], [AC_RUN_LOG([: FLAGS already contains FLAG_NAME])], |
| 37 | [ |
| 38 | AS_IF([test "x$FLAGS" != "x"], [AS_VAR_APPEND(FLAGS, " ")]) |
| 39 | AS_IF([test "x$ENV_CHECK" = "xyes"], |
| 40 | [AS_VAR_APPEND(FLAGS, "+FLAG_NAME")], |
| 41 | [AS_VAR_APPEND(FLAGS, "-FLAG_NAME")]) |
| 42 | ] |
| 43 | ) |
| 44 | |
| 45 | AS_VAR_POPDEF([FLAG_NAME])dnl |
| 46 | AS_VAR_POPDEF([ENV_CHECK])dnl |
| 47 | AS_VAR_POPDEF([FLAGS])dnl |
| 48 | ]) |