diff --git a/pkgs/by-name/sh/shntool/bool-type.patch b/pkgs/by-name/sh/shntool/bool-type.patch
new file mode 100644
index 000000000000..ed3dcd8d480d
--- /dev/null
+++ b/pkgs/by-name/sh/shntool/bool-type.patch
@@ -0,0 +1,48 @@
+diff --git a/include/format.h b/include/format.h
+index 567993e..ab293f8 100644
+--- a/include/format.h
++++ b/include/format.h
+@@ -35,7 +35,7 @@ void tagcpy(unsigned char *,unsigned char *);
+ int tagcmp(unsigned char *,unsigned char *);
+ 
+ /* function to check if a file name is about to be clobbered, and if so, asks whether this is OK */
+-int clobber_check(char *);
++bool clobber_check(char *);
+ 
+ /* find an output format module with the given name */
+ format_module *find_format(char *);
+diff --git a/include/mode.h b/include/mode.h
+index a9c8cd0..fc13d4f 100644
+--- a/include/mode.h
++++ b/include/mode.h
+@@ -78,7 +78,7 @@ void create_output_filename(char *,char *,char *);
+ FILE *open_output_stream(char *,proc_info *);
+ 
+ /* function to determine if two filenames point to the same file */
+-int files_are_identical(char *,char *);
++bool files_are_identical(char *,char *);
+ 
+ /* function to remove a file if it exists */
+ void remove_file(char *);
+diff --git a/include/module-types.h b/include/module-types.h
+index c49c661..2d7b0a3 100644
+--- a/include/module-types.h
++++ b/include/module-types.h
+@@ -23,6 +23,8 @@
+ #ifndef __MODULE_TYPES_H__
+ #define __MODULE_TYPES_H__
+ 
++#include <stdbool.h>
++
+ #ifdef HAVE_CONFIG_H
+ #include "config.h"
+ #endif
+@@ -44,8 +46,6 @@
+ #define PATHSEPCHAR '/'
+ #endif
+ 
+-/* boolean type */
+-typedef int bool;
+ 
+ /* wtypes */
+ typedef unsigned long wlong;
diff --git a/pkgs/by-name/sh/shntool/function-pointer-type.patch b/pkgs/by-name/sh/shntool/function-pointer-type.patch
new file mode 100644
index 000000000000..c88e0dc5d835
--- /dev/null
+++ b/pkgs/by-name/sh/shntool/function-pointer-type.patch
@@ -0,0 +1,26 @@
+diff --git a/src/core_mode.c b/src/core_mode.c
+index d67e317..21d3b9e 100644
+--- a/src/core_mode.c
++++ b/src/core_mode.c
+@@ -564,17 +564,17 @@ static int compare_ascii(const wave_info **w1,const wave_info **w2)
+ 
+ static void ascii_sort_files(wave_info **filenames, int numfiles)
+ {
+-  int (*cmpfunc) ();
++  int (*cmpfunc) (const void *, const void *);
+ 
+-  cmpfunc = compare_ascii;
++  cmpfunc = (int (*)(const void *, const void *))compare_ascii;
+   qsort(filenames,numfiles,sizeof(wave_info *),cmpfunc);
+ }
+ 
+ static void version_sort_files(wave_info **filenames,int numfiles)
+ {
+-  int (*cmpfunc) ();
++  int (*cmpfunc) (const void *, const void *);
+ 
+-  cmpfunc = compare_version;
++  cmpfunc = (int (*)(const void *, const void *))compare_version;
+   qsort(filenames,numfiles,sizeof(wave_info *),cmpfunc);
+ }
+ 
diff --git a/pkgs/by-name/sh/shntool/package.nix b/pkgs/by-name/sh/shntool/package.nix
index a176c11ce5e2..fdd6919eb0ef 100644
--- a/pkgs/by-name/sh/shntool/package.nix
+++ b/pkgs/by-name/sh/shntool/package.nix
@@ -5,7 +5,7 @@
   flac,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   version = "3.0.10+git20130108.4ca41f4-1";
   pname = "shntool";
 
@@ -13,16 +13,26 @@ stdenv.mkDerivation rec {
     domain = "salsa.debian.org";
     owner = "debian";
     repo = "shntool";
-    rev = "debian/${version}";
+    rev = "debian/${finalAttrs.version}";
     sha256 = "sha256-Qn4LwVx34EhypiZDIxuveNhePigkuiICn1nBukoQf5Y=";
   };
 
-  buildInputs = [ flac ];
+  patches = [
+    # Fix conflicts between reserved keywords `bool` (starting from C23) and custom `typedef`s.
+    ./bool-type.patch
+    # Fix implicit weak-typed pointer casting.
+    ./function-pointer-type.patch
+  ];
 
   prePatch = ''
-    patches=$(grep -v '#' ./debian/patches/series | while read patch; do echo "./debian/patches/$patch"; done | tr '\n' ' ')
+    additional_patches=$(grep -v '#' ./debian/patches/series | while read patch; do echo "./debian/patches/$patch"; done | tr '\n' ' ')
+    patches="$patches $additional_patches"
   '';
 
+  buildInputs = [
+    flac
+  ];
+
   meta = {
     description = "Multi-purpose WAVE data processing and reporting utility";
     homepage = "https://packages.qa.debian.org/s/shntool.html";
@@ -30,4 +40,4 @@ stdenv.mkDerivation rec {
     platforms = lib.platforms.all;
     maintainers = with lib.maintainers; [ jcumming ];
   };
-}
+})