mtm: add patches/ layout with series file

system/mtm/mtm.SlackBuild

@@ -78,11 +78,10 @@ fi
 tar xvf $CWD/$PRGNAM-$VERSION.tar.?z*
 cd $PRGNAM-$VERSION
 
-# Backport upstream commit 6af156e (Add nuke keystroke)
-patch -p1 < $CWD/mtm-1.2.1-nuke.patch
-
-# Add documentation for Ctrl+g k (nuke) keystroke to man page
-patch -p1 < $CWD/mtm-1.2.1-man-nuke.patch
+cat $CWD/patches/series | while read patch ; do
+  echo "*** Applying patch $patch"
+  cat $CWD/patches/$patch | patch -p1 --verbose || exit 1
+done || exit 1
 
 chown -R root:root .
 

system/mtm/patches/0001-fix-empty-commandkey-arg.patch

@@ -0,0 +1,19 @@
+From: r1w1s1 <r1w1s1@fastmail.com>
+Date: Wed, 22 Apr 2026
+Subject: Reject empty argument to -c flag
+
+Without this check, `mtm -c ""` dereferences optarg[0] which is '\0',
+making CTL('\0') == 0 the command prefix. Every NUL byte in PTY input
+then triggers command mode. Ignore empty strings and keep the default.
+---
+--- a/mtm.c
++++ b/mtm.c
+@@ -665,7 +665,7 @@ main(int argc, char **argv)
+
+     int c = 0;
+     while ((c = getopt(argc, argv, "c:T:t:")) != -1) switch (c){
+-        case 'c': commandkey = CTL(optarg[0]);      break;
++        case 'c': if (optarg[0]) commandkey = CTL(optarg[0]); break;
+         case 'T': setenv("TERM", optarg, 1);        break;
+         case 't': term = optarg;                    break;
+         default:  quit(EXIT_FAILURE, USAGE);        break;

system/mtm/patches/0002-fix-sgr-truecolor-param-consumption.patch

@@ -0,0 +1,39 @@
+From: r1w1s1 <r1w1s1@fastmail.com>
+Date: Wed, 22 Apr 2026
+Subject: Fix SGR parameter consumption for truecolor sequences
+
+SGR 38/48 can take either `;5;N` (256-color) or `;2;R;G;B` (truecolor).
+The old code assumed ;5;N and always skipped 2 params, so `;2;R;G;B`
+caused R, G, B to be reinterpreted as SGR codes, producing garbage
+attributes. Handle both forms and skip the correct number of params.
+Truecolor values are not rendered (ncurses pair limitation) but are
+now consumed cleanly.
+---
+--- a/mtm.c
++++ b/mtm.c
+@@ -449,7 +449,11 @@
+         case 35:  fg = COLOR_MAGENTA;                         doc = do8;   break;
+         case 36:  fg = COLOR_CYAN;                            doc = do8;   break;
+         case 37:  fg = COLOR_WHITE;                           doc = do8;   break;
+-        case 38:  fg = P0(i+1) == 5? P0(i+2) : s->fg; i += 2; doc = do256; break;
++        case 38:
++            if      (P0(i+1) == 5) { fg = P0(i+2); i += 2; doc = do256; }
++            else if (P0(i+1) == 2) { i += 4; }
++            else                     i += 1;
++            break;
+         case 39:  fg = -1;                                    doc = true;  break;
+         case 40:  bg = COLOR_BLACK;                           doc = do8;   break;
+         case 41:  bg = COLOR_RED;                             doc = do8;   break;
+@@ -459,7 +463,11 @@
+         case 45:  bg = COLOR_MAGENTA;                         doc = do8;   break;
+         case 46:  bg = COLOR_CYAN;                            doc = do8;   break;
+         case 47:  bg = COLOR_WHITE;                           doc = do8;   break;
+-        case 48:  bg = P0(i+1) == 5? P0(i+2) : s->bg; i += 2; doc = do256; break;
++        case 48:
++            if      (P0(i+1) == 5) { bg = P0(i+2); i += 2; doc = do256; }
++            else if (P0(i+1) == 2) { i += 4; }
++            else                     i += 1;
++            break;
+         case 49:  bg = -1;                                    doc = true;  break;
+         case 90:  fg = COLOR_BLACK;                           doc = do16;  break;
+         case 91:  fg = COLOR_RED;                             doc = do16;  break;

system/mtm/patches/series

@@ -0,0 +1,4 @@
+mtm-1.2.1-man-nuke.patch
+mtm-1.2.1-nuke.patch
+0001-fix-empty-commandkey-arg.patch
+0002-fix-sgr-truecolor-param-consumption.patch