projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| 8c44d3ec | 1 | dnl FIXME: This should be soon obsoleted by AC_CHECK_DECL. |
| f9b730cd JT |
2 | |
| 3 | dnl See whether we need a declaration for a function. | |
| 4 | dnl BISON_NEED_DECLARATION(FUNCTION [, EXTRA-HEADER-FILES]) | |
| 5 | AC_DEFUN(BISON_NEED_DECLARATION, | |
| 6 | [AC_MSG_CHECKING([whether $1 must be declared]) | |
| 7 | AC_CACHE_VAL(bison_cv_decl_needed_$1, | |
| 8 | [AC_TRY_COMPILE([ | |
| 9 | #include <stdio.h> | |
| 10 | #ifdef HAVE_STRING_H | |
| 11 | #include <string.h> | |
| 12 | #else | |
| 13 | #ifdef HAVE_STRINGS_H | |
| 14 | #include <strings.h> | |
| 15 | #endif | |
| 16 | #endif | |
| 17 | #ifdef HAVE_STDLIB_H | |
| 18 | #include <stdlib.h> | |
| 19 | #endif | |
| 20 | #ifdef HAVE_UNISTD_H | |
| 21 | #include <unistd.h> | |
| 22 | #endif | |
| 23 | #ifndef HAVE_RINDEX | |
| 24 | #define rindex strrchr | |
| 25 | #endif | |
| 26 | #ifndef HAVE_INDEX | |
| 27 | #define index strchr | |
| 28 | #endif | |
| 29 | $2], | |
| 30 | [char *(*pfn) = (char *(*)) $1], | |
| 31 | eval "bison_cv_decl_needed_$1=no", eval "bison_cv_decl_needed_$1=yes")]) | |
| 32 | if eval "test \"`echo '$bison_cv_decl_needed_'$1`\" = yes"; then | |
| 33 | AC_MSG_RESULT(yes) | |
| 34 | bison_tr_decl=NEED_DECLARATION_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` | |
| 35 | AC_DEFINE_UNQUOTED($bison_tr_decl) | |
| 36 | else | |
| 37 | AC_MSG_RESULT(no) | |
| 38 | fi | |
| 39 | ])dnl | |
| 40 | ||
| 41 | dnl Check multiple functions to see whether each needs a declaration. | |
| 42 | dnl BISON_NEED_DECLARATIONS(FUNCTION... [, EXTRA-HEADER-FILES]) | |
| 43 | AC_DEFUN(BISON_NEED_DECLARATIONS, | |
| 44 | [for ac_func in $1 | |
| 45 | do | |
| 46 | BISON_NEED_DECLARATION($ac_func, $2) | |
| 47 | done | |
| 48 | ]) |