add AC_FUNC_ALLOCA for regex

-Yosh

ChangeLog

@@ -1,3 +1,7 @@
+Wed Apr  8 23:47:59 PDT 1998 Manish Singh <yosh@gimp.org>
+
+	* configure.in: add AC_FUNC_ALLOCA for regex
+
 Wed Apr  8 21:12:01 PDT 1998 Manish Singh <yosh@gimp.org>
 
 	* configure.in: redid libjpeg check to make sure old versions

config.h.in

@@ -1,5 +1,18 @@
 /* config.h.in.  Generated automatically from configure.in by autoheader.  */
 
+/* Define if using alloca.c.  */
+#undef C_ALLOCA
+
+/* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems.
+   This function is required for alloca.c support on those systems.  */
+#undef CRAY_STACKSEG_END
+
+/* Define if you have alloca, as a function or macro.  */
+#undef HAVE_ALLOCA
+
+/* Define if you have <alloca.h> and it should be used (not on Ultrix).  */
+#undef HAVE_ALLOCA_H
+
 /* Define if you don't have vprintf but do have _doprnt.  */
 #undef HAVE_DOPRNT
 
@@ -18,6 +31,15 @@
 /* Define as the return type of signal handlers (int or void).  */
 #undef RETSIGTYPE
 
+/* If using the C implementation of alloca, define if you know the
+   direction of stack growth for your system; otherwise it will be
+   automatically deduced at run-time.
+ STACK_DIRECTION > 0 => grows toward higher addresses
+ STACK_DIRECTION < 0 => grows toward lower addresses
+ STACK_DIRECTION = 0 => direction of growth unknown
+ */
+#undef STACK_DIRECTION
+
 /* Define if you have the ANSI C header files.  */
 #undef STDC_HEADERS
 

configure.in

@@ -259,6 +259,8 @@ AC_TYPE_PID_T
 AC_TYPE_SIGNAL
 AC_FUNC_VPRINTF
 
+AC_FUNC_ALLOCA
+
 # Check for sys/select.h
 
 AC_MSG_CHECKING([fd_set and sys/select])