Show usage string for 'git commit-tree -h'

diff --git a/git-gui/Makefile b/git-gui/Makefile
index 3ad8a21b30128ce21b6b6c28094d9af5e5866faf..b3580e9e48b6ac5d1a7fbd010f032445702f140f 100644 (file)
--- a/git-gui/Makefile
+++ b/git-gui/Makefile
@@ -105,8 +105,11 @@ endif
 
 ifeq ($(uname_S),Darwin)
        TKFRAMEWORK = /Library/Frameworks/Tk.framework/Resources/Wish.app
-       ifeq ($(shell expr "$(uname_R)" : '9\.'),2)
-               TKFRAMEWORK = /System/Library/Frameworks/Tk.framework/Resources/Wish\ Shell.app
+       ifeq ($(shell echo "$(uname_R)" | awk -F. '{if ($$1 >= 9) print "y"}')_$(shell test -d $(TKFRAMEWORK) || echo n),y_n)
+               TKFRAMEWORK = /System/Library/Frameworks/Tk.framework/Resources/Wish.app
+               ifeq ($(shell test -d $(TKFRAMEWORK) || echo n),n)
+                       TKFRAMEWORK = /System/Library/Frameworks/Tk.framework/Resources/Wish\ Shell.app
+               endif
        endif
        TKEXECUTABLE = $(shell basename "$(TKFRAMEWORK)" .app)
 endif