gnu: zynaddsubfx: Fix build with gcc-14.

* gnu/packages/patches/zynaddsubfx-3.0.6-include-cstdint.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add the patch.
* gnu/packages/music.scm (zynaddsubfx)[source]: Add it.
[home-page]: Update URL.

Change-Id: I7a90ee849da029bc159dbbaad1d8aae89f503fbe
Signed-off-by: Andreas Enge <andreas@enge.fr>

3 files changed, 30 insertions, 3 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index 86c7da1d51b..4b15534a114 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -2538,7 +2538,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/zig-0.14-use-system-paths.patch          \
   %D%/packages/patches/zsh-egrep-failing-test.patch             \
   %D%/packages/patches/zuo-bin-sh.patch                 \
-  %D%/packages/patches/zxing-cpp-1.2.0-gcc-14.patch
+  %D%/packages/patches/zxing-cpp-1.2.0-gcc-14.patch     \
+  %D%/packages/patches/zynaddsubfx-3.0.6-include-cstdint.patch
 
 MISC_DISTRO_FILES =                             \
   %D%/packages/ld-wrapper.in
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 982285299b3..d72103d52cb 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -3471,7 +3471,9 @@ instrument or MIDI file player.")
                     version "/zynaddsubfx-" version ".tar.bz2"))
               (sha256
                (base32
-                "1bkirvcg0lz1i7ypnz3dyh218yhrqpnijxs8n3wlgwbcixvn1lfb"))))
+                "1bkirvcg0lz1i7ypnz3dyh218yhrqpnijxs8n3wlgwbcixvn1lfb"))
+              (patches
+               (search-patches "zynaddsubfx-3.0.6-include-cstdint.patch"))))
     (build-system cmake-build-system)
     (arguments
      `(#:phases
@@ -3499,7 +3501,7 @@ instrument or MIDI file player.")
     (native-inputs
      (list pkg-config
            ruby))
-    (home-page "https://zynaddsubfx.sf.net/")
+    (home-page "https://zynaddsubfx.sourceforge.io/")
     (synopsis "Software synthesizer")
     (description
      "ZynAddSubFX is a feature heavy realtime software synthesizer.  It offers
diff --git a/gnu/packages/patches/zynaddsubfx-3.0.6-include-cstdint.patch b/gnu/packages/patches/zynaddsubfx-3.0.6-include-cstdint.patch
new file mode 100644
index 00000000000..a1a0444aa81
--- /dev/null
+++ b/gnu/packages/patches/zynaddsubfx-3.0.6-include-cstdint.patch
@@ -0,0 +1,24 @@
+This patch fixes the compilation error: "uint8_t’ has not been declared".
+
+diff '--color=auto' -ruN zynaddsubfx-3.0.6-a/src/Misc/Bank.h zynaddsubfx-3.0.6-b/src/Misc/Bank.h
+--- zynaddsubfx-3.0.6-a/src/Misc/Bank.h 1970-01-01 05:30:01.000000000 +0530
++++ zynaddsubfx-3.0.6-b/src/Misc/Bank.h 2025-08-18 14:16:56.928347291 +0530
+@@ -18,6 +18,7 @@
+ #include <vector>
+ #include "../globals.h"
+ #include "Config.h"
++#include <cstdint>
+ 
+ //entries in a bank
+ #define BANK_SIZE 160
+diff '--color=auto' -ruN zynaddsubfx-3.0.6-a/src/Nio/MidiIn.h zynaddsubfx-3.0.6-b/src/Nio/MidiIn.h
+--- zynaddsubfx-3.0.6-a/src/Nio/MidiIn.h        1970-01-01 05:30:01.000000000 +0530
++++ zynaddsubfx-3.0.6-b/src/Nio/MidiIn.h        2025-08-18 14:04:01.993278682 +0530
+@@ -17,6 +17,7 @@
+ #define MIDI_IN_H
+ 
+ #include "Engine.h"
++#include <cstdint>
+ 
+ namespace zyn {
+