Add zsh completion file

Makefile

@@ -11,7 +11,8 @@ bindir = $(exec_prefix)/bin
 prefix = /usr/local/
 includedir = $(prefix)/include
 libdir = $(prefix)/lib
-sysconfdir=$(prefix)/etc
+sysconfdir = $(prefix)/etc
+zshcompletiondir = $(prefix)/share/zsh/site_functions
 
 OBJS = src/common.o src/main.o
 
@@ -48,6 +49,7 @@ PXCHAINS = proxychains4
 PXCHAINS_D = proxychains4-daemon
 ALL_TOOLS = $(PXCHAINS) $(PXCHAINS_D)
 ALL_CONFIGS = src/proxychains.conf
+ZSH_COMPLETION = completions/_proxychains
 
 -include config.mak
 
@@ -68,9 +70,13 @@ $(DESTDIR)$(libdir)/%: %
 $(DESTDIR)$(sysconfdir)/%: src/%
 	$(INSTALL) -D -m 644 $< $@
 
+$(DESTDIR)$(zshcompletiondir)/%: completions/%
+	$(INSTALL) -D -m 644 $< $@
+
 install-libs: $(ALL_LIBS:%=$(DESTDIR)$(libdir)/%)
 install-tools: $(ALL_TOOLS:%=$(DESTDIR)$(bindir)/%)
 install-config: $(ALL_CONFIGS:src/%=$(DESTDIR)$(sysconfdir)/%)
+install-zsh-completion: $(ZSH_COMPLETION:completions/%=$(DESTDIR)$(zshcompletiondir)/%)
 
 clean:
 	rm -f $(ALL_LIBS)
@@ -97,4 +103,4 @@ $(PXCHAINS_D): $(DOBJS)
 	$(CC) $^ $(USER_LDFLAGS) -o $@
 
 
-.PHONY: all clean install install-config install-libs install-tools
+.PHONY: all clean install install-config install-libs install-tools install-zsh-completion

completions/_proxychains

@@ -0,0 +1,12 @@
+#compdef proxychains
+
+setopt localoptions extended_glob
+
+local -a _comp_priv_prefix
+
+_arguments \
+  '(- *)--help[More help in README file]' \
+  '(-q)-q[makes proxychains quiet - this overrides the config setting]' \
+  '(-f)-f[allows one to manually specify a configfile to use]:filename:_files' \
+  '(-)1:command: _command_names -e' \
+  '*::arguments:{ _comp_priv_prefix=( '$words[1]' -n ${(kv)opt_args[(I)(-[ugHEP]|--(user|group|set-home|preserve-env|preserve-groups))]} ) ; _normal }'