Makefile: Allow `PREFIX=foo make install`

[code/vcsh.git] / Makefile

diff --git a/Makefile b/Makefile
index 00619864a5e0f70235f00fe05571510f4dd562d9..9e3d5a22c5710325afb465891dbbb6a1f69937b3 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,44 +1,50 @@
-PREFIX=/usr
-
-manpages=vcsh.1
+PREFIX?=/usr
+DOCDIR_PREFIX=$(PREFIX)/share/doc
+DOCDIR=$(DOCDIR_PREFIX)/$(self)
+ZSHDIR=$(PREFIX)/share/zsh/vendor-completions
+RONN ?= ronn
+
+self=vcsh
+manpages=$(self).1
 all=test manpages
 
 all: $(all)
 
 install: all
        install -d $(DESTDIR)$(PREFIX)/bin
-       install -m 0755 vcsh $(DESTDIR)$(PREFIX)/bin
+       install -m 0755 $(self) $(DESTDIR)$(PREFIX)/bin
        install -d $(DESTDIR)$(PREFIX)/share/man/man1
-       install -m 0644 $(manpages)  $(DESTDIR)$(PREFIX)/share/man/man1
-       install -d $(DESTDIR)$(PREFIX)/share/doc/vcsh
-       install -m 0644 INSTALL.md README.md $(DESTDIR)$(PREFIX)/share/doc/vcsh
-       install -d $(DESTDIR)$(PREFIX)/share/zsh/vendor-completions
-       install -m 0644 _vcsh $(DESTDIR)$(PREFIX)/share/zsh/vendor-completions
+       install -m 0644 $(manpages) $(DESTDIR)$(PREFIX)/share/man/man1
+       install -d $(DESTDIR)$(DOCDIR)
+       install -m 0644 README.md $(DESTDIR)$(DOCDIR)
+       install -m 0644 doc/hooks $(DESTDIR)$(DOCDIR)
+       install -d $(DESTDIR)$(ZSHDIR)
+       install -m 0644 _$(self) $(DESTDIR)$(ZSHDIR)
 
 manpages: $(manpages)
 
-vcsh.1: doc/vcsh.1.ronn
-       ronn < doc/vcsh.1.ronn > vcsh.1
+$(self).1: doc/$(self).1.ronn
+       $(RONN) < doc/$(self).1.ronn > $(self).1 || rm $(self).1
 
 clean:
-       rm -rf vcsh.1
+       rm -rf $(self).1
 
 uninstall:
-       rm -rf $(DESTDIR)$(PREFIX)/bin/vcsh
-       rm -rf $(DESTDIR)$(PREFIX)/share/man/man1/vcsh.1
-       rm -rf $(DESTDIR)$(PREFIX)/share/doc/vcsh
-       rm -rf $(DESTDIR)$(PREFIX)/share/zsh/vendor-completions/_vcsh
+       rm -rf $(DESTDIR)$(PREFIX)/bin/$(self)
+       rm -rf $(DESTDIR)$(PREFIX)/share/man/man1/$(self).1
+       rm -rf $(DESTDIR)$(DOCDIR)
+       rm -rf $(DESTDIR)$(ZSHDIR)/_$(self)
 
 # Potentially harmful, used a non-standard option on purpose.
 # If PREFIX=/usr/local and that's empty...
 purge: uninstall
        rmdir -p --ignore-fail-on-non-empty $(DESTDIR)$(PREFIX)/bin/
        rmdir -p --ignore-fail-on-non-empty $(DESTDIR)$(PREFIX)/share/man/man1/
-       rmdir -p --ignore-fail-on-non-empty $(DESTDIR)$(PREFIX)/share/doc/
-       rmdir -p --ignore-fail-on-non-empty $(DESTDIR)$(PREFIX)/share/zsh/vendor-completions/
+       rmdir -p --ignore-fail-on-non-empty $(DESTDIR)$(DOCDIR_PREFIX)
+       rmdir -p --ignore-fail-on-non-empty $(DESTDIR)$(ZSHDIR)
 
 test:
-       if which git > /dev/null ; then :; else echo "'git' not found, exiting..."; exit 1; fi
+       @if which git > /dev/null ; then :; else echo "'git' not found, exiting..."; exit 1; fi
 
 moo:
-       if [ -x /usr/games/cowsay ]; then /usr/games/cowsay "I hope you're happy now..."; fi
+       @if [ -x /usr/games/cowsay ]; then /usr/games/cowsay "I hope you're happy now..."; fi