--- /dev/null
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_check_define.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AC_CHECK_DEFINE([symbol], [ACTION-IF-FOUND], [ACTION-IF-NOT])
+# AX_CHECK_DEFINE([includes],[symbol], [ACTION-IF-FOUND], [ACTION-IF-NOT])
+#
+# DESCRIPTION
+#
+# 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")
+#
+# LICENSE
+#
+# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#
+# 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; either version 3 of the License, or (at your
+# option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception, the respective Autoconf Macro's copyright owner
+# gives unlimited permission to copy, distribute and modify the configure
+# scripts that are the output of Autoconf when processing the Macro. You
+# need not follow the terms of the GNU General Public License when using
+# or distributing such scripts, even though portions of the text of the
+# Macro appear in them. The GNU General Public License (GPL) does govern
+# all other use of the material that constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the Autoconf
+# Macro released by the Autoconf Archive. When you make and distribute a
+# modified version of the Autoconf Macro, you may extend this special
+# exception to the GPL to apply to your modified version as well.
+
+#serial 8
+
+AU_ALIAS([AC_CHECK_DEFINED], [AC_CHECK_DEFINE])
+AC_DEFUN([AC_CHECK_DEFINE],[
+AS_VAR_PUSHDEF([ac_var],[ac_cv_defined_$1])dnl
+AC_CACHE_CHECK([for $1 defined], ac_var,
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
+ #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
+])
+
+AU_ALIAS([AX_CHECK_DEFINED], [AX_CHECK_DEFINE])
+AC_DEFUN([AX_CHECK_DEFINE],[
+AS_VAR_PUSHDEF([ac_var],[ac_cv_defined_$2_$1])dnl
+AC_CACHE_CHECK([for $2 defined in $1], ac_var,
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <$1>]], [[
+ #ifdef $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
fi
+# Check if _SOFT_FLOAT is defined
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for _SOFT_FLOAT defined" >&5
+$as_echo_n "checking for _SOFT_FLOAT defined... " >&6; }
+if test "${ac_cv_defined__SOFT_FLOAT+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ #ifdef _SOFT_FLOAT
+ int ok;
+ #else
+ choke me
+ #endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_defined__SOFT_FLOAT=yes
+else
+ ac_cv_defined__SOFT_FLOAT=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_defined__SOFT_FLOAT" >&5
+$as_echo "$ac_cv_defined__SOFT_FLOAT" >&6; }
+if test $ac_cv_defined__SOFT_FLOAT != "no"; then :
+ have_soft_float=yes
+fi
+
# Runs configure.host to set up necessary host-dependent shell variables.
# We then display a message about it, and propagate them through the
# build chain.
projects / gcc.git / commitdiff