| | 1 | #serial 1003 |
| | 2 | # Experimental replacement for the function in the latest CVS autoconf. |
| | 3 | # Use with the error.c file in ../lib. |
| | 4 | |
| | 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 | |
| | 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]) |
| | 28 | AC_CACHE_CHECK([whether strerror_r returns char *], |
| | 29 | ac_cv_func_strerror_r_char_p, |
| | 30 | [ |
| | 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 |
| | 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. |
| | 47 | AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT |
| | 48 | extern char *strerror_r ();], |
| | 49 | [[char buf[100]; |
| | 50 | char x = *strerror_r (0, buf, sizeof buf); |
| | 51 | exit (!isalpha (x));]])], |
| | 52 | ac_cv_func_strerror_r_char_p=yes, , :) |
| | 53 | fi |
| | 54 | ]) |
| | 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 *.]) |
| | 58 | fi |
| | 59 | ])# AC_FUNC_STRERROR_R |
projects / bison.git / blame_incremental