AC_CHECK_DEFINE([symbol], [ACTION-IF-FOUND], [ACTION-IF-NOT])
AX_CHECK_DEFINE([includes],[symbol], [ACTION-IF-FOUND], [ACTION-IF-NOT])
,
Guido U. Draheim <guidod@gmx.de>
GPLWithACException
This program is free software; you can
redistribute it and/or modify it under the terms of the GNU General Public License
as published by the Free Software Foundation. As a special exception, the respective
Autoconf Macro's copyright owner gives unlimited permission to copy, distribute and modify
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need not follow the terms of the
GNU General Public License when using or distributing such scripts
cryp.to ac-archive's Miscellaneous (released)
complements AC_CHECK_FUNC but it does not check for a function but
for a define to exist. Consider a usage like
AC_CHECK_DEFINE(__STRICT_ANSI__, CFLAGS="$CFLAGS
-D_XOPEN_SOURCE=500")
AC_DEFUN([AC_CHECK_DEFINED],[
AS_VAR_PUSHDEF([ac_var],[ac_cv_defined_$1])dnl
AC_CACHE_CHECK([for $1 defined], ac_var,
AC_TRY_COMPILE(,[
#ifdef $1
int ok;
#else
choke me
#endif
],AS_VAR_SET(ac_var, yes),AS_VAR_SET(ac_var, no)))
AS_IF([test AS_VAR_GET(ac_var) != "no"], [$2], [$3])dnl
AS_VAR_POPDEF([ac_var])dnl
])
AC_DEFUN([AX_CHECK_DEFINED],[
AS_VAR_PUSHDEF([ac_var],[ac_cv_defined_$2])dnl
AC_CACHE_CHECK([for $1 defined], ac_var,
AC_TRY_COMPILE($1,[
#ifndef $2
int ok;
#else
choke me
#endif
],AS_VAR_SET(ac_var, yes),AS_VAR_SET(ac_var, no)))
AS_IF([test AS_VAR_GET(ac_var) != "no"], [$3], [$4])dnl
AS_VAR_POPDEF([ac_var])dnl
])
AC_DEFUN([AX_CHECK_FUNC],
[AS_VAR_PUSHDEF([ac_var], [ac_cv_func_$2])dnl
AC_CACHE_CHECK([for $2], ac_var,
dnl AC_LANG_FUNC_LINK_TRY
[AC_LINK_IFELSE([AC_LANG_PROGRAM([$1
#undef $2
char $2 ();],[
char (*f) () = $2;
return f != $2; ])],
[AS_VAR_SET(ac_var, yes)],
[AS_VAR_SET(ac_var, no)])])
AS_IF([test AS_VAR_GET(ac_var) = yes], [$3], [$4])dnl
AS_VAR_POPDEF([ac_var])dnl
])# AC_CHECK_FUNC