games-engines/xsystem4: add patch to fix version number option

Signed-off-by: hautist <lookatnadeko@protonmail.com>

games-engines/xsystem4/files/version_1.0.0.patch

@@ -0,0 +1,9 @@
+diff -ur a/src/meson.build b/src/meson.build
+--- a/src/meson.build	2025-09-29 02:52:05.000000000 +0100
++++ b/src/meson.build	2025-09-30 14:58:30.420678438 +0100
+@@ -1,5 +1,5 @@
+ version_h = vcs_tag(command) : ['git', 'descrive', 'HEAD'],
+-                    fallback : 'unknown version',
++                    fallback : '1.0.0',
+                     input : 'version.h.in',
+                     output : 'version.h')

games-engines/xsystem4/xsystem4-1.0.0.ebuild

@@ -53,6 +53,11 @@ BDEPEND="
 	virtual/pkgconfig
 "
 
+# Patch to correct version number for each release, patch must be edited for each new version
+PATCHES=(
+	"${FILESDIR}"/version_"{PV}".patch
+)
+
 src_unpack() {
 	default