Adding a Frequently Asked Questions file

[freeglut] / configure.ac

diff --git a/configure.ac b/configure.ac
index e69114b..5daea87 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -40,13 +40,12 @@ AC_SUBST([EXPORT_FLAGS])
 
 # Checks for header files.
 AC_HEADER_STDC
+save_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="$CPPFLAGS $X_CFLAGS"
 AC_CHECK_HEADERS([GL/gl.h GL/glu.h GL/glx.h fcntl.h limits.h sys/ioctl.h sys/param.h sys/time.h])
 AC_HEADER_TIME
-
-save_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $X_CFLAGS"
 AC_CHECK_HEADERS([X11/extensions/xf86vmode.h], [], [], [#include <X11/Xlib.h>])
-CFLAGS="$save_CFLAGS"
+CPPFLAGS="$save_CPPFLAGS"
 
 # Checks for library functions.
 AC_PROG_GCC_TRADITIONAL
@@ -77,8 +76,7 @@ fi
 
 AC_ARG_ENABLE([debug],
 [AS_HELP_STRING([--enable-debug],
-                [enable debug (for developers) @<:@default=no@:>@])])
-
+                [enable debugging code (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