-dnl configure.in for Openbox
-dnl Initialize autoconf and automake
-AC_INIT(src/blackbox.cc)
-AM_INIT_AUTOMAKE(openbox,2.0.0,no-define)
-AC_CONFIG_HEADERS(config.h)
-
-dnl Determine default prefix
-test x$prefix = "xNONE" && prefix="$ac_default_prefix"
-
-dnl Check for various flavors of UNIX(r)
-dnl AC_AIX
-dnl AC_ISC_POSIX
-
-dnl Locate required external software
-AC_PROG_CC
-AC_PROG_CXX
-AC_PROG_INSTALL
-
-AC_CHECK_PROGS(regex_cmd, sed)
-if test x$regex_cmd = "x"; then
- AC_MSG_ERROR([error. sed is required to build the default menu file.])
-fi
-
-dnl Check for system header files
-AC_CHECK_HEADERS(ctype.h dirent.h fcntl.h libgen.h locale.h nl_types.h process.h signal.h stdarg.h stdio.h string.h stdlib.h time.h unistd.h sys/param.h sys/select.h sys/signal.h sys/stat.h sys/time.h sys/types.h sys/wait.h)
-AC_HEADER_TIME
-
-dnl Check for existance of basename(), setlocale() and strftime()
-AC_CHECK_FUNCS(basename, , AC_CHECK_LIB(gen, basename,
- AC_DEFINE(HAVE_BASENAME) LIBS="$LIBS -lgen"))
-AC_CHECK_FUNCS(getpid setlocale sigaction strftime strcasestr snprintf vsnprintf catopen catgets catclose)
-AC_CHECK_LIB(nsl, t_open, LIBS="$LIBS -lnsl")
-AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
+AC_PREREQ([2.54])
+AC_INIT([openbox], [3.999.0], [http://bugzilla.icculus.org])
+AM_INIT_AUTOMAKE
+AC_CONFIG_SRCDIR([openbox/openbox.c])
+
+dnl Making releases:
+dnl RR_MICRO_VERSION += 1;
+dnl RR_INTERFACE_AGE += 1;
+dnl R_BINARY_AGE += 1;
+dnl if any functions have been added, set RR_INTERFACE_AGE to 0.
+dnl if backwards compatibility has been broken,
+dnl set RR_BINARY_AGE and RR_INTERFACE_AGE to 0.
+dnl
+dnl if MAJOR or MINOR version changes, be sure to change AC_INIT above to match
+dnl
+RR_MAJOR_VERSION=4
+RR_MINOR_VERSION=0
+RR_MICRO_VERSION=17
+RR_INTERFACE_AGE=0
+RR_BINARY_AGE=0
+RR_VERSION=$RR_MAJOR_VERSION.$RR_MINOR_VERSION
+
+OBT_MAJOR_VERSION=4
+OBT_MINOR_VERSION=0
+OBT_MICRO_VERSION=0
+OBT_INTERFACE_AGE=0
+OBT_BINARY_AGE=0
+OBT_VERSION=$OBT_MAJOR_VERSION.$OBT_MINOR_VERSION
+
+AC_SUBST(RR_MAJOR_VERSION)
+AC_SUBST(RR_MINOR_VERSION)
+AC_SUBST(RR_MICRO_VERSION)
+AC_SUBST(RR_INTERFACE_AGE)
+AC_SUBST(RR_BINARY_AGE)
+AC_SUBST(RR_VERSION)
+AC_SUBST(OBT_MAJOR_VERSION)
+AC_SUBST(OBT_MINOR_VERSION)
+AC_SUBST(OBT_MICRO_VERSION)
+AC_SUBST(OBT_INTERFACE_AGE)
+AC_SUBST(OBT_BINARY_AGE)
+AC_SUBST(OBT_VERSION)
+
+dnl Libtool versioning
+RR_RELEASE=$RR_MAJOR_VERSION.$RR_MINOR_VERSION
+RR_CURRENT=`expr $RR_MICRO_VERSION - $RR_INTERFACE_AGE`
+RR_REVISION=$RR_INTERFACE_AGE
+RR_AGE=`expr $RR_BINARY_AGE - $RR_INTERFACE_AGE`
+RR_CURRENT_MINUS_AGE=`expr $RR_CURRENT - $RR_AGE`
+
+OBT_RELEASE=$OBT_MAJOR_VERSION.$OBT_MINOR_VERSION
+OBT_CURRENT=`expr $OBT_MICRO_VERSION - $OBT_INTERFACE_AGE`
+OBT_REVISION=$OBT_INTERFACE_AGE
+OBT_AGE=`expr $OBT_BINARY_AGE - $OBT_INTERFACE_AGE`
+OBT_CURRENT_MINUS_AGE=`expr $OBT_CURRENT - $OBT_AGE`
+
+AC_SUBST(RR_RELEASE)
+AC_SUBST(RR_CURRENT)
+AC_SUBST(RR_REVISION)
+AC_SUBST(RR_AGE)
+AC_SUBST(RR_CURRENT_MINUS_AGE)
+AC_SUBST(OBT_RELEASE)
+AC_SUBST(OBT_CURRENT)
+AC_SUBST(OBT_REVISION)
+AC_SUBST(OBT_AGE)
+AC_SUBST(OBT_CURRENT_MINUS_AGE)
+
+AC_PREFIX_DEFAULT([/usr/local])
+test "$prefix" = "NONE" && prefix=$ac_default_prefix
+
+dnl Determine build target
+OB_DEBUG
+dnl Pick compiler specific/build target flags, and set $CVS
+AM_PROG_CC_C_O
+OB_COMPILER_FLAGS
+AC_C_CONST
+AC_C_INLINE
+
+AC_PROG_LIBTOOL
+AC_SUBST(LIBTOOL_DEPS)
+LIBTOOL="$LIBTOOL --silent"