From adb09b8340698e8fadec6c3acb9fd0894a1da67e Mon Sep 17 00:00:00 2001
From: Nikita Ermakov <coffe92@gmail.com>
Date: Sun, 4 Aug 2019 23:36:41 +0300
Subject: [PATCH] Add autoconf scripts.

- Replace Makefile with Makefile.in

- Add configure.ac
---
 Makefile     | 15 ---------------
 Makefile.in  | 36 +++++++++++++++++++++++++++++++++++
 configure.ac | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 89 insertions(+), 15 deletions(-)
 delete mode 100644 Makefile
 create mode 100644 Makefile.in
 create mode 100644 configure.ac

diff --git a/Makefile b/Makefile
deleted file mode 100644
index c5a6ee3..0000000
--- a/Makefile
+++ /dev/null
@@ -1,15 +0,0 @@
-CC=gcc
-DAEMON=runns
-CLIENT=runnsctl
-
-all: $(DAEMON) $(CLIENT)
-
-$(DAEMON): runns.o
-	$(CC) -o $@ $<
-
-$(CLIENT): client.o
-	$(CC) -o $@ $<
-
-.PHONY: client
-clean:
-	rm -f $(DAEMON) $(CLIENT) *.o
diff --git a/Makefile.in b/Makefile.in
new file mode 100644
index 0000000..386af39
--- /dev/null
+++ b/Makefile.in
@@ -0,0 +1,36 @@
+CC=@CC@
+LD=@CC@
+PREFIX=@prefix@
+
+CFLAGS=@CFLAGS@
+DAEMON=runns
+CLIENT=runnsctl
+HELPER=build-net clean-net
+_ := $() $()
+comma := ,
+
+all: $(DAEMON) $(CLIENT)
+
+$(DAEMON): runns.o
+	$(CC) -o $@ $<
+
+$(CLIENT): client.o
+	$(CC) -o $@ $<
+
+.PHONY: client
+clean:
+	rm -f $(DAEMON) $(CLIENT) *.o
+
+.PHONY: install
+install: $(DAEMON) $(CLIENT) $(HELPER)
+	mkdir -p $(DESTDIR)/$(PREFIX)/bin
+	cp {$(subst $(_),$(comma),$^)} $(DESTDIR)/$(PREFIX)/bin/
+	chmod 755 $(DESTDIR)/$(PREFIX)/bin/{$(subst $(_),$(comma),$^)}
+
+.PHONY: uninstall
+uninstall: $(CLIENT) $(DAEMON) $(HELPER)
+	rm -f $(DESTDIR)/$(PREFIX)/bin/{$(subst $(_),$(comma),$^)}
+
+.PHONY: distclean
+distclean:
+	rm -vrf $(DAEMON) $(CLIENT) *.o Makefile autom4te.cache config.log config.status
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..cbcc664
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,53 @@
+dnl
+dnl Process this file in order to make a configure script
+dnl
+
+dnl Setup autoconf
+AC_INIT([runns], [1.0], [coffe92@gmail.com])
+dnl AM_INIT_AUTOMAKE
+
+dnl Debug option
+AC_ARG_ENABLE(debug,
+              AS_HELP_STRING([--enable-debug],[enable debugging, defult: no]),
+              [case "${enableval}" in
+               yes) debug = true  ;;
+               no)  debug = false ;;
+               *)   AC_MSG_ERROR([bad value ${enablevalue} for --enable-debug]) ;;
+             esac], [debug=false])
+
+dnl Check dependences
+echo "Cheking dependences"
+AC_LANG(C)
+AC_CHECK_TOOL(IPTABLES, iptables, "", PATH="$PATH:/sbin")
+AC_CHECK_TOOL(IP, ip)
+AC_CHECK_TOOL(GAWK, gawk)
+
+dnl Disable all CFLAGS if it was not declarated
+if [test -z $CFLAGS; ] then
+  if test x"${debug}" == x"true"; then
+    CFLAGS="-g -O0"
+  else
+    CFLAGS="-O2"
+  fi
+fi
+AC_PROG_CC
+
+if [ test "x$IPTABLES" == "x"; ] then
+  AC_MSG_ERROR([iptables is required])
+fi
+
+if [ test "x$IP" == "x"; ] then
+  AC_MSG_ERROR([ip from iproute2 is required])
+fi
+
+if [ test "x$GAWK" == "x"; ] then
+  AC_MSG_ERROR([gawk is required])
+fi
+
+dnl Get source code path
+dnl AC_DEFINE_UNQUOTED([SRC_PATH], ["$srcdir"], [source path])
+
+dnl Configure Makefile from Makefile.in
+AC_CONFIG_FILES([Makefile])
+
+AC_OUTPUT