patch 9.1.1153: build error on Haiku

Problem:  build error on Haiku
Solution: define XDG_RUNTIME_PATH variables
          (Begasus)

closes: #16737

Signed-off-by: Begasus <begasus@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/os_haiku.h b/src/os_haiku.h
index 1977cc1..c9ce8fc 100644
--- a/src/os_haiku.h
+++ b/src/os_haiku.h
@@ -26,12 +26,18 @@
 #ifdef RUNTIME_GLOBAL
 # ifdef RUNTIME_GLOBAL_AFTER
 #  define DFLT_RUNTIMEPATH	USR_VIM_DIR "," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL_AFTER "," USR_VIM_DIR "/after"
+#  define XDG_RUNTIMEPATH	"$XDG_CONFIG_HOME/vim," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL_AFTER "/after,$XDG_CONFIG_HOME/vim/after"
+#  define XDG_RUNTIMEPATH_FB	"~/config/settings/vim," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL_AFTER "/after,~/config/settings/vim/after"
 #  define CLEAN_RUNTIMEPATH	RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL_AFTER
 # else
 #  define DFLT_RUNTIMEPATH	USR_VIM_DIR "," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL "/after," USR_VIM_DIR "/after"
+#  define XDG_RUNTIMEPATH	"$XDG_CONFIG_HOME/vim," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL "/after,$XDG_CONFIG_HOME/vim/after"
+#  define XDG_RUNTIMEPATH_FB	"~/config/settings/vim," RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL "/after,~/config/settings/vim/after"
 #  define CLEAN_RUNTIMEPATH	RUNTIME_GLOBAL ",$VIMRUNTIME," RUNTIME_GLOBAL "/after"
 # endif
 #else
 # define DFLT_RUNTIMEPATH	USR_VIM_DIR ",$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after," USR_VIM_DIR "/after"
+# define XDG_RUNTIMEPATH	"$XDG_CONFIG_HOME/vim,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,$XDG_CONFIG_HOME/vim/after"
+# define XDG_RUNTIMEPATH_FB	"~/config/settings/vim,$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after,~/config/settings/vim/after"
 # define CLEAN_RUNTIMEPATH	"$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after"
 #endif