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(jm_CHECK_DECLARATION): Don't hard-code which headers to

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include, though we still hard-code the `require'-like AC_CHECK_HEADERS
calls for those previously hard-coded headers.  Instead, take a new parameter.
(jm_CHECK_DECLARATIONS): Reflect interface change.
This commit is contained in:
Jim Meyering 1998-10-18 01:07:17 +00:00
parent 0a25bc498d
commit 2b69ce2d89
1 changed files with 8 additions and 25 deletions
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33
m4/decl.m4
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@ -1,4 +1,4 @@
#serial 2
#serial 3
AC_DEFUN(jm_CHECK_DECLARATION,
[
@ -10,24 +10,7 @@ AC_DEFUN(jm_CHECK_DECLARATION,
test -z "$ac_cv_header_unistd_h" && AC_CHECK_HEADERS(unistd.h)
AC_MSG_CHECKING([whether $1 is declared])
AC_CACHE_VAL(jm_cv_func_decl_$1,
[AC_TRY_COMPILE([
#include <stdio.h>
#ifdef HAVE_STRING_H
# if !STDC_HEADERS && HAVE_MEMORY_H
# include <memory.h>
# endif
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
#endif
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif],
[AC_TRY_COMPILE($2,
[
#ifndef $1
char *(*pfn) = (char *(*)) $1
@ -38,23 +21,23 @@ char *(*pfn) = (char *(*)) $1
if eval "test \"`echo '$jm_cv_func_decl_'$1`\" = yes"; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
ifelse([$3], , :, [$3])
else
AC_MSG_RESULT(no)
ifelse([$3], , , [$3
ifelse([$4], , , [$4
])dnl
fi
])dnl
dnl jm_CHECK_DECLARATIONS(FUNCTION... [, ACTION-IF-DECLARED
dnl jm_CHECK_DECLARATIONS(INCLUDES, FUNCTION... [, ACTION-IF-DECLARED
dnl [, ACTION-IF-NOT-DECLARED]])
AC_DEFUN(jm_CHECK_DECLARATIONS,
[
for jm_func in $1
for jm_func in $2
do
jm_CHECK_DECLARATION($jm_func,
jm_CHECK_DECLARATION($jm_func, $1,
[
jm_tr_func=HAVE_DECL_`echo $jm_func | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
AC_DEFINE_UNQUOTED($jm_tr_func) $2], $3)dnl
AC_DEFINE_UNQUOTED($jm_tr_func) $3], $4)dnl
done
])