autoconf'd <limits.h> and <sys/param.h> handling, removing MIN/MAX

macros on the way.


git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@552 7f0cb862-5218-0410-a997-914c9d46530a

freeglut/freeglut/configure.ac

@@ -23,7 +23,7 @@ AC_SUBST([LIBXXF86VM])
 
 # Checks for header files.
 AC_HEADER_STDC
-AC_CHECK_HEADERS([GL/gl.h GL/glu.h GL/glx.h fcntl.h sys/ioctl.h sys/time.h])
+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"

freeglut/freeglut/src/freeglut_joystick.c

@@ -31,12 +31,11 @@
  *  Many thanks for Steve Baker for permission to pull from that library.
  */
 
-#if defined( __FreeBSD__ ) || defined( __NetBSD__ )
-#    include <sys/param.h>
-#endif
-
 #include <GL/freeglut.h>
 #include "freeglut_internal.h"
+#if HAVE_SYS_PARAM_H
+#    include <sys/param.h>
+#endif
 
 /*
  * Initial defines from "js.h" starting around line 33 with the existing "freeglut_joystick.c"

freeglut/freeglut/src/freeglut_main.c

@@ -28,7 +28,6 @@
 #include <GL/freeglut.h>
 #include "freeglut_internal.h"
 
-#include <limits.h>
 #if TARGET_HOST_UNIX_X11
 #include <errno.h>
 #include <sys/stat.h>
@@ -49,8 +48,15 @@ struct GXKeyList gxKeyList;
 
 #endif
 
-#ifndef MAX
-#define MAX(a,b) (((a)>(b)) ? (a) : (b))
+/*
+ * Try to get the maximum value allowed for ints, falling back to the minimum
+ * guaranteed by ISO C99 if there is no suitable header.
+ */
+#if HAVE_LIMITS_H
+#    include <limits.h>
+#endif
+#ifndef INT_MAX
+#    define INT_MAX 32767
 #endif
 
 #ifndef MIN
@@ -445,8 +451,10 @@ static void fghSleepForEvents( void )
         return;
 
     msec = fghNextTimer( );
-    if( fghHaveJoystick( ) )     /* XXX Use GLUT timers for joysticks... */
-        msec = MIN( msec, 10 );  /* XXX Dumb; forces granularity to .01sec */
+    /* XXX Use GLUT timers for joysticks... */
+    /* XXX Dumb; forces granularity to .01sec */
+    if( fghHaveJoystick( ) && ( msec < 10 ) )     
+        msec = 10;
 
 #if TARGET_HOST_UNIX_X11
     /*