Convert build process to autotools

Replaced the use of a manual Makefile with the use of autotools to
automatically verify and generate the necessary build files. Follow the
steps outlined within the README.md file to build the package.

Change-Id: I85d6b0233b287ad446a9c4296e56e7bbdf218195
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>

5 files changed, 83 insertions, 29 deletions

diff --git a/Makefile b/Makefile
deleted file mode 100644
index 23feac9..0000000
--- a/Makefile
+++ /dev/null
@@ -1,29 +0,0 @@
-CC?= $(CROSS_COMPILE)gcc
-
-EXE = netman_watch_dns
-EXE_OBJ = $(EXE).o
-
-INSTALLED_EXE += $(EXE)
-
-CFLAGS += -Wall -Werror -Wno-unused-result
-
-INC_FLAG += $(shell pkg-config --cflags --libs libsystemd) -I. -O2
-LIB_FLAG += $(shell pkg-config  --libs libsystemd)
-
-DESTDIR ?= /
-SBINDIR ?= /usr/sbin
-
-all: $(EXE)
-
-%.o: %.C
-	$(CC) -c $< $(CFLAGS) $(INC_FLAG)-o $@
-
-$(EXE): $(EXE_OBJ)
-	$(CC) $^ $(LDFLAGS) $(LIB_FLAG) -o $@
-
-clean:
-	rm -f $(EXE) *.o
-
-install:
-		install -m 0755 -d $(DESTDIR)$(SBINDIR)
-		install -m 0755 $(EXE) $(DESTDIR)$(SBINDIR)
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..8d6dda1
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,5 @@
+sbin_PROGRAMS = netman_watch_dns
+
+netman_watch_dns_SOURCES = netman_watch_dns.c
+netman_watch_dns_LDFLAGS = $(SYSTEMD_LIBS)
+netman_watch_dns_CFLAGS = $(SYSTEMD_CFLAGS)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..5318177
--- /dev/null
+++ b/README.md
@@ -0,0 +1,10 @@
+## To Build
+```
+To build this package, do the following steps:
+
+    1. ./bootstrap.sh
+    2. ./configure ${CONFIGURE_FLAGS}
+    3. make
+
+To full clean the repository again run `./bootstrap.sh clean`.
+```
diff --git a/bootstrap.sh b/bootstrap.sh
new file mode 100755
index 0000000..50b75b7
--- /dev/null
+++ b/bootstrap.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+AUTOCONF_FILES="Makefile.in aclocal.m4 ar-lib autom4te.cache compile \
+        config.guess config.h.in config.sub configure depcomp install-sh \
+        ltmain.sh missing *libtool test-driver"
+
+case $1 in
+    clean)
+        test -f Makefile && make maintainer-clean
+        for file in ${AUTOCONF_FILES}; do
+            find -name "$file" | xargs -r rm -rf
+        done
+        exit 0
+        ;;
+esac
+
+autoreconf -i
+echo 'Run "./configure ${CONFIGURE_FLAGS} && make"'
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..4b943c9
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,50 @@
+# Initializaion
+AC_PREREQ([2.69])
+AC_INIT([phosphor-networkd], [1.0], [https://github.com/openbmc/phosphor-networkd/issues])
+AC_CONFIG_HEADERS([config.h])
+AM_INIT_AUTOMAKE([subdir-objects -Wall -Werror foreign dist-xz])
+AM_SILENT_RULES([yes])
+
+# Checks for programs.
+AC_PROG_CC
+AM_PROG_AR
+AC_PROG_INSTALL
+AC_PROG_MAKE_SET
+
+# Checks for libraries.
+PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 221])
+
+# Checks for header files.
+AC_CHECK_HEADER(systemd/sd-bus.h, ,[AC_MSG_ERROR([Could not find systemd/sd-bus.h...systemd development package required])])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AX_APPEND_COMPILE_FLAGS([-Wall -Werror -Wno-unused-result], [CFLAGS])
+
+# Checks for library functions.
+LT_INIT # Removes 'unrecognized options: --with-libtool-sysroot'
+
+# Check/set gtest specific functions.
+AX_PTHREAD([GTEST_CPPFLAGS="-DGTEST_HAS_PTHREAD=1"],[GTEST_CPPFLAGS="-GTEST_HAS_PTHREAD=0"])
+AC_SUBST(GTEST_CPPFLAGS)
+
+AC_ARG_ENABLE([oe-sdk],
+    AS_HELP_STRING([--enable-oe-sdk], [Link testcases absolutely against OE SDK so they can be ran within it.])
+)
+AC_ARG_VAR(OECORE_TARGET_SYSROOT,
+    [Path to the OE SDK SYSROOT])
+AS_IF([test "x$enable_oe_sdk" == "xyes"],
+    AS_IF([test "x$OECORE_TARGET_SYSROOT" == "x"],
+          AC_MSG_ERROR([OECORE_TARGET_SYSROOT must be set with --enable-oe-sdk])
+    )
+    AC_MSG_NOTICE([Enabling OE-SDK at $OECORE_TARGET_SYSROOT])
+    [
+        testcase_flags="-Wl,-rpath,\${OECORE_TARGET_SYSROOT}/lib"
+        testcase_flags="${testcase_flags} -Wl,-rpath,\${OECORE_TARGET_SYSROOT}/usr/lib"
+        testcase_flags="${testcase_flags} -Wl,-dynamic-linker,`find \${OECORE_TARGET_SYSROOT}/lib/ld-*.so | sort -r -n | head -n1`"
+    ]
+    AC_SUBST([OESDK_TESTCASE_FLAGS], [$testcase_flags])
+)
+
+# Create configured output.
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT