Adds an autotools build system to fix the many issues with the custom build
system (ignoring CC, CFLAGS, DESTDIR, not installing the .so file properly).

Contributed by Nick Fortino (nfortino@gmail.com) 2/1/2009

Updated by Jonathan Callen <abcd@gentoo.org> 2009-09-11

--- a/Makefile.am
+++ b/Makefile.am
@@ -0,0 +1,20 @@
+include_HEADERS = src/lockdev.h src/ttylock.h
+
+lib_LTLIBRARIES = liblockdev.la
+liblockdev_la_SOURCES = src/lockdev.c
+liblockdev_version = -version-info $(LOCKDEV_CURRENT_INTERFACE):$(LOCKDEV_INTERFACE_AGE):$(LOCKDEV_BINARY_AGE)
+liblockdev_la_LDFLAGS = $(liblockdev_version)
+
+man_MANS = docs/lockdev.3
+
+manpage_links = \
+	dev_lock.3 \
+	dev_unlock.3 \
+	dev_relock.3 \
+	dev_testlock.3 \
+	liblockdev.3
+
+install-data-hook:
+	for page in $(manpage_links); do \
+		$(LN_S) -f lockdev.3 $(DESTDIR)$(man3dir)/$${page} ; \
+	done
--- a/configure.ac
+++ b/configure.ac
@@ -0,0 +1,25 @@
+AC_INIT([lockdev], [1.0.3], [BUG-REPORT-ADDRESS])
+AC_CONFIG_AUX_DIR([scripts])
+AM_INIT_AUTOMAKE
+
+LOCKDEV_CURRENT_INTERFACE=1
+LOCKDEV_INTERFACE_AGE=0
+LOCKDEV_BINARY_AGE=0
+
+AC_SUBST([LOCKDEV_CURRENT_INTERFACE])
+AC_SUBST([LOCKDEV_INTERFACE_AGE])
+AC_SUBST([LOCKDEV_BINARY_AGE])
+
+LT_INIT([disable-static])
+
+AC_CANONICAL_BUILD
+AC_CANONICAL_HOST
+
+# Checks for programs.
+AC_PROG_LN_S
+
+AC_HEADER_MAJOR
+
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT