git-gui: Support starting gitk from Gui Blame

diff --git a/Makefile b/Makefile
index 1ba0e788f9a99980b4ab3a35f213f0a4ffcbaa1e..55765c8a3aa6b3702b230e8efe3c2ab47a6e73e5 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -34,8 +34,12 @@ ifndef gitexecdir
 endif
 
 ifndef sharedir
+ifeq (git-core,$(notdir $(gitexecdir)))
+       sharedir := $(dir $(patsubst %/,%,$(dir $(gitexecdir))))share
+else
        sharedir := $(dir $(gitexecdir))share
 endif
+endif
 
 ifndef INSTALL
        INSTALL = install
@@ -131,7 +135,17 @@ GITGUI_MACOSXAPP :=
 
 ifeq ($(uname_O),Cygwin)
        GITGUI_SCRIPT := `cygpath --windows --absolute "$(GITGUI_SCRIPT)"`
-       gg_libdir_sed_in := $(shell cygpath --windows --absolute "$(gg_libdir)")
+
+       # Is this a Cygwin Tcl/Tk binary?  If so it knows how to do
+       # POSIX path translation just like cygpath does and we must
+       # keep libdir in POSIX format so Cygwin packages of git-gui
+       # work no matter where the user installs them.
+       #
+       ifeq ($(shell echo 'puts [file normalize /]' | '$(TCL_PATH_SQ)'),$(shell cygpath --mixed --absolute /))
+               gg_libdir_sed_in := $(gg_libdir)
+       else
+               gg_libdir_sed_in := $(shell cygpath --windows --absolute "$(gg_libdir)")
+       endif
 else
        ifeq ($(exedir),$(gg_libdir))
                GITGUI_RELATIVE := 1
@@ -146,6 +160,7 @@ endif
 ifneq (,$(findstring MINGW,$(uname_S)))
        NO_MSGFMT=1
        GITGUI_WINDOWS_WRAPPER := YesPlease
+       GITGUI_RELATIVE := 1
 endif
 
 ifdef GITGUI_MACOSXAPP
@@ -211,7 +226,7 @@ ifdef NO_MSGFMT
        MSGFMT ?= $(TCL_PATH) po/po2msg.sh
 else
        MSGFMT ?= msgfmt
-       ifeq ($(shell $(MSGFMT) >/dev/null 2>&1 || echo $$?),127)
+       ifneq ($(shell $(MSGFMT) --tcl -l C -d . /dev/null 2>/dev/null; echo $$?),0)
                MSGFMT := $(TCL_PATH) po/po2msg.sh
        endif
 endif