--- 3b0b581ab2-3f513bfb0c.clean/conf/gkbuild.cmake.old	2026-02-07 18:50:18.944623000 +0100
+++ 3b0b581ab2-3f513bfb0c.clean/conf/gkbuild.cmake	2026-02-07 18:51:19.086997000 +0100
@@ -16,9 +16,9 @@ option(GKRAND "enable GKRAND support" OF
 
 # Add compiler flags.
 if(MSVC)
-  set(GK_COPTIONS "-DWIN32 -DMSC -D_CRT_SECURE_NO_DEPRECATE -DUSE_GKREGEX")
+  set(GK_COPTIONS "-DWIN32 -DMSC -D_CRT_SECURE_NO_DEPRECATE")
 elseif(MINGW)
-  set(GK_COPTS "-DUSE_GKREGEX")
+#  set(GK_COPTS "-DUSE_GKREGEX")
 else()
   set(GK_COPTIONS "-DLINUX -D_FILE_OFFSET_BITS=64")
 endif(MSVC)