File dirdiff.patch of Package dirdiff

 - build the shared lib with -fPIC
 - use DESTDIR in the install target, not as global offset
 - fix warnings which appear with the newly added -Wall
 - add global OPTFLAGS= variable, which can be used to pass 
   RPM_OPT_FLAGS in a rpm specfile.

Signed-off-by: Olaf Hering <olh@suse.de>

Index: dirdiff-2.1/Makefile
===================================================================
--- dirdiff-2.1.orig/Makefile
+++ dirdiff-2.1/Makefile
@@ -2,21 +2,25 @@
 #
 # In fact all we have to make is the libfilecmp.so.0.0 library.
 
-BINDIR=$(DESTDIR)/usr/bin
-LIBDIR=$(DESTDIR)/usr/lib
+DESTDIR=
+BINDIR=/usr/bin
+LIBDIR=/usr/lib
 INSTALL=install
+OPTFLAGS=-O3
 
 # You may need to change the -I arguments depending on your system
-CFLAGS=-O3 -I/usr/include/tcl8.3/ -I/usr/include/tcl
+CFLAGS=$(OPTFLAGS) -Wall -I/usr/include/tcl8.3/ -I/usr/include/tcl
 
 all:	libfilecmp.so.0.0
 
 libfilecmp.so.0.0: filecmp.c
-	$(CC) $(CFLAGS) -shared -o $@ filecmp.c
+	$(CC) $(CFLAGS) -fPIC -shared -o $@ filecmp.c
 
 install: dirdiff libfilecmp.so.0.0
-	$(INSTALL) -c dirdiff $(BINDIR)
-	$(INSTALL) -c libfilecmp.so.0.0 $(LIBDIR)
+	mkdir -p $(DESTDIR)$(BINDIR)
+	mkdir -p $(DESTDIR)$(LIBDIR)
+	$(INSTALL) -c dirdiff $(DESTDIR)$(BINDIR)
+	$(INSTALL) -c libfilecmp.so.0.0 $(DESTDIR)$(LIBDIR)
 
 clean:
 	rm -f libfilecmp.so.0.0
Index: dirdiff-2.1/filecmp.c
===================================================================
--- dirdiff-2.1.orig/filecmp.c
+++ dirdiff-2.1/filecmp.c
@@ -10,6 +10,7 @@
 #include <string.h>
 #include <ctype.h>
 #include <tcl.h>
+#include <unistd.h>
 #include <sys/fcntl.h>
 
 #define BSIZE		32768
@@ -28,6 +29,8 @@ char *rcs_ignores[] = {
     "Date",
     "State",
     "Header",
+    "XFree86",
+    "Xorg",
     NULL
 };
 
@@ -48,9 +51,9 @@ tag_length(p, n)
     char *p;
     int n;
 {
-    int i, j, k, l;
+    int i, j, l;
     int maybe;
-    char *t, *cl;
+    char *t;
 
     /* check through list of tags */
     for (i = 0; (t = rcs_ignores[i]) != NULL; ++i) {
@@ -125,7 +128,7 @@ int rcscmp(char *p1, int *k1p, char *p2,
 	p2 += i;
 	k2 -= i;
 	/* 4 == strlen("<dollar>Id<dollar>") */
-	if (k1 < 4 && !e1 || k2 < 4 && !e2)
+	if (((k1 < 4) && (!e1)) || ((k2 < 4) && (!e2)))
 	    break;
 	if (k1 < 4 || k2 < 4) {
 	    /* near the end of one or both files */
@@ -195,7 +198,7 @@ int bkcmp(char *p1, int *k1p, char *p2, 
 		k2 -= i;
 		if (match < BKTAGLEN) {
 			/* we have run out of one or other buffer */
-			if (k1 == 0 && e1 || k2 == 0 && e2) {
+			if (((k1 == 0) && e1) || ((k2 == 0) && e2)) {
 				if (k1 == k2)
 					break;
 				return 0;
@@ -219,7 +222,7 @@ int bkcmp(char *p1, int *k1p, char *p2, 
 			continue;
 		}
 		/* ran out before eol on one or both files */
-		if (t1 == k1 && e1 || t2 == k2 && e2) {
+		if (((t1 == k1) && e1) || ((t2 == k2) && e2)) {
 			k1 -= t1;
 			k2 -= t2;
 			if (k1 == k2)
@@ -243,7 +246,7 @@ FileCmpCmd(clientData, interp, argc, arg
     int argc;
     char **argv;
 {
-    int i, fi;
+    int fi;
     int f1, f2;
     char *b1, *b2;
     int n1, n2, same;