Comparing the files installed for XOrg-6.9 and XOrg-7.3 as,
	e.g., <prefix>include/X11/extensions/Xrender.h, I conclude
	that it is permissible to (judiciously) constify arguments
	in public prototypes.

	This patch avoids the gcc (3.4.6) warnings:
		../../libSM-1.0.3/src/sm_client.c:104: warning: passing arg 7 of `IceRegisterForProtocolSetup' from incompatible pointer type
		../../libSM-1.0.3/src/sm_manager.c:168: warning: passing arg 7 of `IceRegisterForProtocolReply' from incompatible pointer type
	when compiling libSM

	libICE and libSM are two of the libraries that still could need
	ANSIfication, I'd offer some help if you tell me to do so.

diff -ur libICE-1.0.4.orig/include/X11/ICE/ICElib.h libICE-1.0.4/include/X11/ICE/ICElib.h
--- libICE-1.0.4.orig/include/X11/ICE/ICElib.h	2006-07-11 22:41:03.000000000 +0200
+++ libICE-1.0.4/include/X11/ICE/ICElib.h	2008-10-02 23:40:00.000000000 +0200
@@ -214,7 +214,7 @@
     int				/* versionCount */,
     IcePoVersionRec *		/* versionRecs */,
     int				/* authCount */,
-    char **			/* authNames */,
+    const char **		/* authNames */,
     IcePoAuthProc *		/* authProcs */,
     IceIOErrorProc		/* IOErrorProc */
 );
@@ -226,7 +226,7 @@
     int				/* versionCount */,
     IcePaVersionRec *		/* versionRecs */,
     int				/* authCount */,
-    char **			/* authNames */,
+    const char **		/* authNames */,
     IcePaAuthProc *		/* authProcs */,
     IceHostBasedAuthProc	/* hostBasedAuthProc */,
     IceProtocolSetupProc	/* protocolSetupProc */,
diff -ur libICE-1.0.4.orig/src/register.c libICE-1.0.4/src/register.c
--- libICE-1.0.4.orig/src/register.c	2007-04-05 23:59:16.000000000 +0200
+++ libICE-1.0.4/src/register.c	2008-10-02 23:39:59.000000000 +0200
@@ -43,7 +43,7 @@
 int			versionCount;
 IcePoVersionRec		*versionRecs;
 int			authCount;
-char		        **authNames;
+const char	        **authNames;
 IcePoAuthProc		*authProcs;
 IceIOErrorProc		IOErrorProc;
 
@@ -144,7 +144,7 @@
 int				versionCount;
 IcePaVersionRec			*versionRecs;
 int				authCount;
-char				**authNames;
+const char			**authNames;
 IcePaAuthProc			*authProcs;
 IceHostBasedAuthProc		hostBasedAuthProc;
 IceProtocolSetupProc		protocolSetupProc;