Index: code/sdl/sdl_glimp.c
===================================================================
--- code/sdl/sdl_glimp.c	(revision 1212)
+++ code/sdl/sdl_glimp.c	(working copy)
@@ -62,6 +62,13 @@
 #define GLimp_SetCurrentContext(ctx)
 #endif
 
+/* SGI IRIX needs definitions for multitexture types */
+#ifdef __sgi
+typedef void (*PFNGLMULTITEXCOORD2FARBPROC)(GLenum target, GLfloat s, GLfloat t);
+typedef void (*PFNGLACTIVETEXTUREARBPROC)(GLenum target);
+typedef void (*PFNGLCLIENTACTIVETEXTUREARBPROC)(GLenum target);
+#endif
+
 static QGLContext opengl_context;
 
 typedef enum
Index: code/qcommon/q_platform.h
===================================================================
--- code/qcommon/q_platform.h	(revision 1212)
+++ code/qcommon/q_platform.h	(working copy)
@@ -274,6 +274,15 @@
 
 #endif
 
+//================================================================== IRIX ===
+#ifdef __sgi
+#define OS_STRING "irix"
+#define ID_INLINE __inline
+#define PATH_SEP '/'
+#define ARCH_STRING "mips"
+#define Q3_BIG_ENDIAN /* SGI's MIPS are always big endian */
+#define DLL_EXT ".so"
+#endif
 //================================================================== Q3VM ===
 
 #ifdef Q3_VM
Index: code/qcommon/net_ip.c
===================================================================
--- code/qcommon/net_ip.c	(revision 1212)
+++ code/qcommon/net_ip.c	(working copy)
@@ -63,6 +63,10 @@
 #include <sys/filio.h>
 #endif
 
+#ifdef __sgi
+#include <sys/time.h> /* struct timeval */
+#endif
+
 typedef int SOCKET;
 #define INVALID_SOCKET		-1
 #define SOCKET_ERROR			-1
Index: code/sys/con_tty.c
===================================================================
--- code/sys/con_tty.c	(revision 1212)
+++ code/sys/con_tty.c	(working copy)
@@ -28,6 +28,10 @@
 #include <termios.h>
 #include <fcntl.h>
 
+#ifdef __sgi
+#include <sys/time.h> /* struct timeval */
+#endif
+
 /*
 =============================================================
 tty console routines
Index: Makefile
===================================================================
--- Makefile	(revision 1212)
+++ Makefile	(working copy)
@@ -636,12 +636,15 @@
 # SETUP AND BUILD -- IRIX
 #############################################################################
 
-ifeq ($(PLATFORM),irix)
+ifeq ($(PLATFORM),irix64)
 
   ARCH=mips  #default to MIPS
+ 
+  CC=c99
+  MKDIR=mkdir -p 
 
-  BASE_CFLAGS=-Dstricmp=strcasecmp -Xcpluscomm -woff 1185 -mips3 \
-    -nostdinc -I. -I$(ROOT)/usr/include -DNO_VM_COMPILED
+  BASE_CFLAGS=-Dstricmp=strcasecmp -Xcpluscomm -woff 1185 \
+  -I. $(shell sdl-config --cflags) -I$(ROOT)/usr/include -DNO_VM_COMPILED
   RELEASE_CFLAGS=$(BASE_CFLAGS) -O3
   DEBUG_CFLAGS=$(BASE_CFLAGS) -g
 
@@ -649,8 +652,8 @@
   SHLIBCFLAGS=
   SHLIBLDFLAGS=-shared
 
-  LDFLAGS=-ldl -lm
-  CLIENT_LDFLAGS=-L/usr/X11/$(LIB) -lGL -lX11 -lXext -lm
+  LDFLAGS=-ldl -lm -lgen
+  CLIENT_LDFLAGS=-L/usr/X11/$(LIB) $(shell sdl-config --libs) -lGL -lX11 -lXext -lm
 
 else # ifeq IRIX