git-gui: Created makefile to install the program.

Since we want to be installed in gitexecdir so that "git gui" works we
can guess where that directory is by asking the git wrapper executable
and locating ourselves at the same location using the same install
rules as core git.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

diff --git a/Makefile b/Makefile
new file mode 100644 (file)
index 0000000..e3e871f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,14 @@
+all: git-gui
+
+gitexecdir := $(shell git --exec-path)
+INSTALL = install
+
+DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
+gitexecdir_SQ = $(subst ','\'',$(gitexecdir))
+
+GITGUI_BUILTIN = git-citool
+
+install: all
+       $(INSTALL) -d -m755 '$(DESTDIR_SQ)$(gitexecdir_SQ)'
+       $(INSTALL) git-gui '$(DESTDIR_SQ)$(gitexecdir_SQ)'
+       $(foreach p,$(GITGUI_BUILTIN), rm -f '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p' && ln '$(DESTDIR_SQ)$(gitexecdir_SQ)/git-gui' '$(DESTDIR_SQ)$(gitexecdir_SQ)/$p' ;)