Removed redundant files from EXTRA_DIST.

[freeglut] / configure.ac

diff --git a/configure.ac b/configure.ac
index d931a36..d652cbe 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,11 +1,14 @@
 # Process this file with autoconf to produce a configure script.
 
-AC_INIT([freeglut library], [2.3.9], [freeglut-bugs@lists.sourceforge.net], [freeglut])
+AC_INIT([freeglut library], [2.4.0], [freeglut-bugs@lists.sourceforge.net], [freeglut])
 AM_INIT_AUTOMAKE
-AC_PREREQ([2.58])
+AC_PREREQ([2.56])
 AC_CONFIG_SRCDIR([AUTHORS])
 AC_CONFIG_HEADERS([config.h])
 
+# Compatibility hack for older autoconf versions
+m4_ifdef([AS_HELP_STRING], [], [AC_DEFUN([AS_HELP_STRING], [AC_HELP_STRING($][@)])])
+
 # Checks for programs.
 AC_PROG_CC
 AC_C_CONST
@@ -58,6 +61,14 @@ if test "x$enable_warnings" != xno -a "x$GCC" = xyes; then
   CFLAGS="$CFLAGS -Wall -pedantic -Werror"
 fi
 
+AC_ARG_ENABLE([debug],
+[AS_HELP_STRING([--enable-debug],
+                [enable debug (for developers) @<:@default=no@:>@])])
+
+if test "x$enable_debug" = xyes; then
+  AC_DEFINE([_DEBUG], [1], [Define to 1 if you want to include debugging code.])
+fi
+
 # Generate output.
 AC_CONFIG_FILES([Makefile
                  doc/Makefile