treesheets: fix musl build

srcpkgs/treesheets/patches/fix-musl-glob-tilde.patch

@@ -0,0 +1,18 @@
+musl doesn't GLOB_TILDE, so simply don't use it here.
+
+diff --git a/lobster/src/platform.cpp b/lobster/src/platform.cpp
+index ceaec49..68e2443 100644
+--- lobster/src/platform.cpp
++++ lobster/src/platform.cpp
+@@ -46,6 +46,10 @@
+ #include "sdlincludes.h"  // FIXME
+ #endif
+ 
++#ifndef GLOB_TILDE
++#define GLOB_TILDE 0
++#endif
++
+ // Main dir to load files relative to, on windows this is where lobster.exe resides, on apple
+ // platforms it's the Resource folder in the bundle.
+ string datadir;
+