#
# Patch managed by http://www.holgerschurig.de/patcher.html
#

--- setmixer-27DEC94.orig/Makefile~setmixer
+++ setmixer-27DEC94.orig/Makefile
@@ -1,8 +1,8 @@
 DESTDIR =
 INSTALL = install
 CC=gcc
-CFLAGS= -O6 -fomit-frame-pointer -Wall -pipe -m486
-LDFLAGS= -Xlinker -N -s
+CFLAGS= -O2 -fomit-frame-pointer -Wall -pipe
+#LDFLAGS= -Xlinker -N -s
 PROG=setmixer
 
 $(PROG): setmixer.o
--- setmixer-27DEC94.orig/setmixer.c~setmixer
+++ setmixer-27DEC94.orig/setmixer.c
@@ -36,7 +36,7 @@
 
     int devmask, stereod, i, d;
     int mixer_fd;
-    int lcval,rcval;
+    int lcval,rcval,oldlcval,oldrcval,val;
     int verbose = 0;
     size_t len;
     char *endptr;
@@ -52,9 +52,9 @@
 	}
     }
     
-    if (!verbose && ((argc <= 0) || (argc & 1))) {
+    if ((!verbose && ((argc <= 0) || (argc & 1))) || (verbose && argc % 2)) {
 	fprintf(stderr, "usage: %s [-V] cntrl val [cntrl val ....]\n"
-       "where val is in 0-100 range and 'cntrl' is one of the following:\n\t",
+       "where val is in [+-]0-100 range and 'cntrl' is one of the following:\n\t",
 		prog);
 	for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
 	    fprintf(stderr, "%s ", dname[i]);
@@ -84,16 +84,36 @@
     
     while (argc) {
 	cntrl = *argv++;
+	oldlcval = (('+' == **argv) || ('-' == **argv));
 	lcval = strtol(*argv++, &endptr, 0);
 	if (',' == *endptr) {
 	    endptr += 1;
+	    oldrcval = (('+' == *endptr) || ('-' == *endptr));
 	    rcval = strtol((const char *)endptr, 0, 0);
 	}
 	else {
 	    rcval = lcval;
+	    oldrcval = oldlcval;
 	}
 	argc -= 2;
 	len = strlen(cntrl);
+	if (oldlcval || oldrcval) {
+	    for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
+	    	if (0 == strncmp(dname[i], cntrl, len)) {
+		    d = (1 << i);
+		    if (0 != (devmask & d)) {
+			if (-1 == ioctl(mixer_fd, MIXER_READ(i), &val)) {
+			    perror("MIXER_READ");
+			}
+			else {
+			    lcval += oldlcval ? (val & 0x7f) : 0;
+			    rcval += oldrcval ? ((val >> 8) & 0x7f) : 0;
+			}
+		    }
+		    break;
+		}
+	    }
+	}
 	for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
 	    if (0 == strncmp(dname[i], cntrl, len)) {
 		d = (1 << i);