##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
m4_define([v_maj], [0])
m4_define([v_min], [1])
m4_define([v_mic], [99])
m4_define([v_rev], m4_esyscmd([(svnversion "${SVN_REPO_PATH:-.}" | grep -v '\(export\|Unversioned directory\)' || echo 0) | awk -F : '{printf("%s\n", $1);}' | tr -d ' :MSP\n']))
m4_if(v_rev, [0], [m4_define([v_rev], m4_esyscmd([git log 2> /dev/null | (grep -m1 git-svn-id || echo 0) | sed -e 's/.*@\([0-9]*\).*/\1/' | tr -d '\n']))])
##--   When released, remove the dnl on the below line
dnl m4_undefine([v_rev])
##--   When doing snapshots - change soname. remove dnl on below line
dnl m4_define([relname], [ver-pre-svn-07])
dnl m4_define([v_rel], [-release relname])
##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
m4_ifdef([v_rev], [m4_define([v_ver], [v_maj.v_min.v_mic.v_rev])], [m4_define([v_ver], [v_maj.v_min.v_mic])])
m4_define([lt_cur], m4_eval(v_maj + v_min))
m4_define([lt_rev], v_mic)
m4_define([lt_age], v_min)
##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##

AC_INIT([ephysics], [v_ver], [enlightenment-devel@lists.sourceforge.net])
AC_PREREQ([2.52])
AC_CONFIG_SRCDIR([configure.ac])
AC_CONFIG_MACRO_DIR([m4])

AC_CONFIG_HEADERS([config.h])
AH_TOP([
#ifndef EFL_CONFIG_H__
#define EFL_CONFIG_H__
])
AH_BOTTOM([
#endif /* EFL_CONFIG_H__ */
])

AM_INIT_AUTOMAKE([1.6 dist-bzip2])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

AC_LIBTOOL_WIN32_DLL
define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl
AC_PROG_LIBTOOL

##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
m4_ifdef([v_rev], , [m4_define([v_rev], [0])])
m4_ifdef([v_rel], , [m4_define([v_rel], [])])
AC_DEFINE_UNQUOTED(VMAJ, [v_maj], [Major version])
AC_DEFINE_UNQUOTED(VMIN, [v_min], [Minor version])
AC_DEFINE_UNQUOTED(VMIC, [v_mic], [Micro version])
AC_DEFINE_UNQUOTED(VREV, [v_rev], [Revison])
version_info="lt_cur:lt_rev:lt_age"
release_info="v_rel"
AC_SUBST(version_info)
AC_SUBST(release_info)
##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
VMAJ=v_maj
AC_SUBST(VMAJ)

AC_DEFINE_UNQUOTED([SHARED_LIB_SUFFIX], ["$shrext_cmds"], [Suffix for shared objects])

### Default options with respect to host
AC_CANONICAL_BUILD
AC_CANONICAL_HOST


case "$host_os" in
   mingw32ce*)
      MODULE_ARCH="$host_os-$host_cpu"
      install_vim="no"
      have_ephysics_cc="no"
      ;;
   *)
      MODULE_ARCH="$host_os-$host_cpu-v_maj.0.0"
      install_vim="yes"
      have_ephysics_cc="yes"
      ;;
esac

requirement_ephysics=""

AC_SUBST(MODULE_ARCH)
AC_DEFINE_UNQUOTED(MODULE_ARCH, "${MODULE_ARCH}", "Module architecture")

m4_ifdef([v_mic],
        [
        EFL_COMPILER_FLAG([-Wall])
        EFL_COMPILER_FLAG([-Wextra])
        EFL_COMPILER_FLAG([-Wunused])
        EFL_COMPILER_FLAG([-W])
        ])

### Checks for programs
AC_PROG_CC
AC_PROG_CXX

# doxygen program for documentation building

EFL_CHECK_DOXYGEN([build_doc="yes"], [build_doc="no"])

# python

AM_PATH_PYTHON([2.5], , [:])
AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != : ])

# pkg-config

PKG_PROG_PKG_CONFIG

# Check whether pkg-config supports Requires.private

if $PKG_CONFIG --atleast-pkgconfig-version 0.22; then
   pkgconfig_requires_private="Requires.private"
else
   pkgconfig_requires_private="Requires"
fi
AC_SUBST(pkgconfig_requires_private)


### Checks for libraries

# Evil library for compilation on Windows

EFL_EPHYSICS_BUILD=""
case "$host_os" in
   mingw*)
      PKG_CHECK_MODULES([EVIL], [evil >= 1.0.0])
      AC_DEFINE([HAVE_EVIL], [1], [Set to 1 if Evil library is installed])
      requirement_ephysics="evil ${requirement_ephysics}"
      EFL_EPHYSICS_BUILD="-DEFL_EPHYSICS_BUILD"
   ;;
esac
AC_SUBST(EFL_EPHYSICS_BUILD)

build_docs_only="no"
AC_ARG_ENABLE([build-docs-only],
   AC_HELP_STRING([--enable-build-docs-only],
                  [Doesn't build library or tests, just build docs. @<:@default==disabled@:>@]),
   [
    if test "x${enableval}" = "xyes" ; then
       build_docs_only="yes"
    fi
   ],
   [])
AM_CONDITIONAL([BUILD_DOCS_ONLY], [test "x${build_docs_only}" = "xyes"])


# Dependencies for the library
if test "x${build_docs_only}" = "xno" ; then
PKG_CHECK_MODULES([EPHYSICS],
   [
    eina >= 1.2.99
    evas >= 1.7.99
    ecore >= 1.2.99
    bullet >= 2.80
   ])

requirement_ephysics="bullet >= 2.80 ecore >= 1.2.99 evas >= 1.7.99 eina >= 1.2.99 ${requirement_ephysics}"
fi

### Checks for header files
AC_CHECK_HEADERS([locale.h sys/resource.h])

EFL_WITH_BIN([edje], [edje-cc], [edje_cc])

EFL_CHECK_PATH_MAX

### Checks for compiler characteristics
AM_PROG_CC_C_O
AC_C_CONST
AC_PROG_CC_STDC
AC_HEADER_STDC
AC_C___ATTRIBUTE__

case "$host_os" in
   mingw32ce*)
      EPHYSICS_CFLAGS="${EPHYSICS_CFLAGS} -D_WIN32_WCE=0x0420"
      ;;
esac


### Checks for linker characteristics

lt_enable_auto_import=""
case "$host_os" in
   mingw*)
      lt_enable_auto_import="-Wl,--enable-auto-import"
      ;;
esac
AC_SUBST(lt_enable_auto_import)

## Tests - disable by default. With edje requiring ephysics and tests requiring
## edje we are in circular dependency hell here.
build_tests="no"
if test "x${build_docs_only}" = "xno" ; then
PKG_CHECK_MODULES([ELEMENTARY], [elementary >= 1.7.99], [req_tests="yes"], [req_tests="no"])
AC_ARG_ENABLE([build-tests],
   AC_HELP_STRING([--enable-build-tests],
                  [Enable building tests. It is not built if the
                   required dependencies are not present. @<:@default==disabled@:>@]),
   [
    if test "x${enableval}" = "xyes" ; then
      if test "x${req_tests}" = "xyes" ; then
        build_tests="yes"
        requirement_ephysics="elementary >= 1.7.99 ${requirement_ephysics}"
      fi
    fi
   ],
   [])
else
   build_tests="no"
fi
AM_CONDITIONAL([BUILD_TESTS], [test "x${build_tests}" = "xyes"])

if test "x${build_tests}" = "xyes" && test "x${build_docs_only}" = "xno" ; then
PKG_CHECK_MODULES([EPHYSICS_TEST],
   [
    eina >= 1.2.99
    evas >= 1.7.99
    ecore >= 1.2.99
    elementary >= 1.0.99
    bullet >= 2.80
   ])
fi

AC_SUBST(requirement_ephysics)

AC_OUTPUT([
ephysics.pc
ephysics.spec
Makefile
data/Makefile
data/logo_images/Makefile
data/themes/Makefile
doc/Makefile
doc/Doxyfile
src/Makefile
src/lib/Makefile
src/bin/Makefile
])


#####################################################################
## Info

echo
echo
echo
echo "------------------------------------------------------------------------"
echo "$PACKAGE $VERSION"
echo "------------------------------------------------------------------------"
echo
echo "Configuration Options Summary:"
echo
echo "  Documentation........: ${build_doc} | docs-only: ${build_docs_only}"
echo "  Tests................: ${build_tests}"
echo
echo "Compilation............: make (or gmake)"
echo "  CPPFLAGS.............: $CPPFLAGS"
echo "  CFLAGS...............: $CFLAGS"
echo "  LDFLAGS..............: $LDFLAGS"
echo
echo "Installation...........: make install (as root if needed, with 'su' or 'sudo')"
echo "  prefix...............: $prefix"
echo