diff --git a/mingw-w64-graphviz/017-fix-building-on-clang-15.patch b/mingw-w64-graphviz/017-fix-building-on-clang-15.patch
new file mode 100644
index 0000000000..4e70d4367e
--- /dev/null
+++ b/mingw-w64-graphviz/017-fix-building-on-clang-15.patch
@@ -0,0 +1,26 @@
+diff --git a/cmd/lefty/common.h b/cmd/lefty/common.h
+index 1f5758a..6180a0d 100644
+--- a/cmd/lefty/common.h
++++ b/cmd/lefty/common.h
+@@ -65,6 +65,7 @@ extern "C" {
+ 
+ #ifdef FEATURE_MS
+ #include <malloc.h>
++int gprintf (const char *fmt, ...);
+ #define printf gprintf
+ #endif
+ 
+diff --git a/lib/neatogen/stuff.c b/lib/neatogen/stuff.c
+index ba17965..815158e 100644
+--- a/lib/neatogen/stuff.c
++++ b/lib/neatogen/stuff.c
+@@ -20,6 +20,9 @@
+ #ifndef _WIN32
+ #include	<unistd.h>
+ #endif
++#ifndef HAVE_DRAND48
++extern double drand48(void);
++#endif
+ 
+ static double Epsilon2;
+ 
diff --git a/mingw-w64-graphviz/PKGBUILD b/mingw-w64-graphviz/PKGBUILD
index 5f5c16dbbe..1a4c68affa 100644
--- a/mingw-w64-graphviz/PKGBUILD
+++ b/mingw-w64-graphviz/PKGBUILD
@@ -61,7 +61,8 @@ source=(#${_realname}-${pkgver}::git+https://gitlab.com/graphviz/graphviz.git#ta
         013-further-fixes.patch
         014-gdiplus-no-explicit-libstdc++.patch
         015-cast-function-pointer-to-void-pointer.patch
-        016-makefile-dont-embed-build-system-path.patch)
+        016-makefile-dont-embed-build-system-path.patch
+        017-fix-building-on-clang-15.patch)
 sha256sums=('8e1b34763254935243ccdb83c6ce108f531876d7a5dfd443f255e6418b8ea313'
             'a64e23a55481ff36641466ef80607bcdc1bbf20f992804620f4a58b5b8c04f8d'
             'd1e7e4dc1b55463123e3ed8f999745bf06078766ee24071be8866ac75fe1309e'
@@ -78,7 +79,8 @@ sha256sums=('8e1b34763254935243ccdb83c6ce108f531876d7a5dfd443f255e6418b8ea313'
             '2cc48cd408a2949391e5e5232b107300978a82c31eaf54a35a4d87d3a503c643'
             '97a2655d52632b77700adeade13c9608e516676b5092fbc9786a0fcd557f6656'
             'c6a52798aef381cea84d2e0299ae7ffdd992b0663eff3d903b3aa5e7c34964ca'
-            'a0b2fa94f5aa4042684525c0463b1e180fcd37fc5f1ca80265cd9e72b2d17225')
+            'a0b2fa94f5aa4042684525c0463b1e180fcd37fc5f1ca80265cd9e72b2d17225'
+            '988598c46ed3234166142d0d912be4426887f5a75b8d405634234d38a9e4d9a5')
 
 prepare() {
   cd "${srcdir}"/${_realname}-${pkgver}