projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| 4a0d8936 | 1 | #serial 1003 |
| 5141b016 | 2 | # Experimental replacement for the function in the latest CVS autoconf. |
| 5141b016 AD |
3 | # Use with the error.c file in ../lib. |
| 4 | ||
| 4a0d8936 PE |
5 | # Copyright 2001 Free Software Foundation, Inc. |
| 6 | ||
| 7 | # This program is free software; you can redistribute it and/or modify | |
| 8 | # it under the terms of the GNU General Public License as published by | |
| 9 | # the Free Software Foundation; either version 2, or (at your option) | |
| 10 | # any later version. | |
| 11 | ||
| 12 | # This program is distributed in the hope that it will be useful, | |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | # GNU General Public License for more details. | |
| 16 | ||
| 17 | # You should have received a copy of the GNU General Public License | |
| 18 | # along with this program; if not, write to the Free Software Foundation, | |
| 19 | # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 5141b016 AD |
21 | undefine([AC_FUNC_STRERROR_R]) |
| 22 | ||
| 23 | # AC_FUNC_STRERROR_R | |
| 24 | # ------------------ | |
| 25 | AC_DEFUN([AC_FUNC_STRERROR_R], | |
| 26 | [AC_CHECK_DECLS([strerror_r]) | |
| 27 | AC_CHECK_FUNCS([strerror_r]) | |
| 4a0d8936 PE |
28 | AC_CACHE_CHECK([whether strerror_r returns char *], |
| 29 | ac_cv_func_strerror_r_char_p, | |
| 5141b016 | 30 | [ |
| 4a0d8936 PE |
31 | ac_cv_func_strerror_r_char_p=no |
| 32 | if test $ac_cv_have_decl_strerror_r = yes; then | |
| 33 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], | |
| 34 | [[ | |
| 35 | char buf[100]; | |
| 36 | char x = *strerror_r (0, buf, sizeof buf); | |
| 37 | char *p = strerror_r (0, buf, sizeof buf); | |
| 38 | ]])], | |
| 39 | ac_cv_func_strerror_r_char_p=yes) | |
| 40 | else | |
| 41 | # strerror_r is not declared. Choose between | |
| 5141b016 AD |
42 | # systems that have relatively inaccessible declarations for the |
| 43 | # function. BeOS and DEC UNIX 4.0 fall in this category, but the | |
| 44 | # former has a strerror_r that returns char*, while the latter | |
| 45 | # has a strerror_r that returns `int'. | |
| 46 | # This test should segfault on the DEC system. | |
| 4a0d8936 PE |
47 | AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT |
| 48 | extern char *strerror_r ();], | |
| 49 | [[char buf[100]; | |
| 5141b016 | 50 | char x = *strerror_r (0, buf, sizeof buf); |
| 4a0d8936 PE |
51 | exit (!isalpha (x));]])], |
| 52 | ac_cv_func_strerror_r_char_p=yes, , :) | |
| 5141b016 AD |
53 | fi |
| 54 | ]) | |
| 4a0d8936 PE |
55 | if test $ac_cv_func_strerror_r_char_p = yes; then |
| 56 | AC_DEFINE([STRERROR_R_CHAR_P], 1, | |
| 57 | [Define to 1 if strerror_r returns char *.]) | |
| 5141b016 AD |
58 | fi |
| 59 | ])# AC_FUNC_STRERROR_R |