# $Id$

m4_define(x_package_name, libxml-cxx)
m4_define(x_major, 1)
m4_define(x_minor, 1)

m4_include(ax_cxx_compile_stdcxx_11.m4)
AC_ALIAS([AC_DEFINE_DIR], [AX_DEFINE_DIR])
AC_DEFUN([AX_DEFINE_DIR], [
  prefix_NONE=
  exec_prefix_NONE=
  test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix
  test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix
dnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn
dnl refers to ${prefix}.  Thus we have to use `eval' twice.
  eval ax_define_dir="\"[$]$2\""
  eval ax_define_dir="\"$ax_define_dir\""
  AC_SUBST($1, "$ax_define_dir")
  AC_DEFINE_UNQUOTED($1, "$ax_define_dir", [$3])
  test "$prefix_NONE" && prefix=NONE
  test "$exec_prefix_NONE" && exec_prefix=NONE
])

m4_define(x_least, m4_esyscmd_s(
  LEAST="ERROR-UNDEFINED-REVISION-to-be-built-in-subdirectory-of-svn-checkout"
  for path in . .. ../..; do
    if svn info $path 2>&1 > /dev/null; then
      LEAST=$(LANG= svn info $path | sed -n 's/Last Changed Rev: //p')
      (cd $path && svn2cl)
      break;
    fi
  done
  echo -n $LEAST
))
m4_define(x_bugreport, m4_esyscmd_s(
  head -1 AUTHORS | \
    sed -n 's,.*<\([-_.a-z0-9A-Z]*@[-_.a-z0-9A-Z]*\)>.*,\1,gp'
))
AC_INIT(x_package_name, x_major.x_minor.x_least, x_bugreport, x_package_name)

AM_INIT_AUTOMAKE([1.9 tar-pax])

SRC_DIR=src
TST_DIR=test
DOC_DIR=doc

# files to create
AC_CONFIG_FILES([makefile ${PACKAGE_NAME}.spec src/version.cxx
                 src/makefile test/makefile doc/examples/makefile
                 doc/doxyfile doc/makefile
                 src/${PACKAGE_NAME}.pc debian/changelog debian/control])

# libtool versioning
LIB_MAJOR=m4_eval(x_major+x_minor)
LIB_MINOR=x_least
LIB_LEAST=x_minor
LIB_VERSION="${LIB_MAJOR}:${LIB_MINOR}:${LIB_LEAST}"
AC_SUBST(LIB_VERSION)

# home
AC_SUBST(HOME)

# datadir for languages
AX_DEFINE_DIR([DATADIR], [datadir])
#AC_SUBST(DATADIR)

AM_CPPFLAGS="-DPACKAGEPACKAGE_VERSION='\"${PACKAGE_VERSION}\"' -DPACKAGE_NAME='\"${PACKAGE_NAME}\"'"

# Get rid of that stupid -O2 -g opions!
CXXFLAGS="${CXXFLAGS:-}"

# languages
AC_LANG(C++)
AX_CXX_COMPILE_STDCXX_11(noext, optional)

# programs
AC_PROG_CXX
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_LIBTOOL
AC_CHECK_PROG(have_doxygen, doxygen, yes, no)
AC_CHECK_PROG(have_dot, dot, yes, no)
PKG_PROG_PKG_CONFIG

AC_ARG_ENABLE(pedantic,
  [AS_HELP_STRING([--enable-pedantic],
                  [enable all warnings and checks, abort on warnings])],
  [have_pedantic="$enableval"; test "$enableval" = "yes" &&  \
     AM_CXXFLAGS="${AM_CXXFLAGS:-} -pedantic-errors -Wall -W -Wfloat-equal -Wundef -Wendif-labels -Wpointer-arith -Wcast-align -Wwrite-strings -Wconversion -Wsign-compare -Wmissing-format-attribute -Wno-multichar -Wpacked -Wredundant-decls -Werror -Wshadow -Wcast-qual -Wno-ctor-dtor-privacy"])
dnl problem in libs: -Wshadow -Wcast-qual
dnl auto.hpp: -Wno-ctor-dtor-privacy (removed)
AM_CONDITIONAL(PEDANTIC, test "$enableval" = "yes")
AC_ARG_ENABLE(dot,
  [AS_HELP_STRING([--disable-dot],
                  [disable dot graphic tools for documentation])],
  [have_dot="$enableval"])
test "$enableval" = "yes" && HAVE_DOT="YES" || HAVE_DOT="NO";
AM_PATH_CPPUNIT([1.0.0], [have_cppunit="yes"], [have_cppunit="no"])

MINGW32=no
MAC=no
case $host_os in
  *mingw32*) MINGW32=yes;;
  *darwin* | *rhapsody* | *macosx*) MAC=yes;;
esac
AM_CONDITIONAL(MINGW32, test "$MINGW32" = "yes")
AM_CONDITIONAL(MAC, test "$MAC" = "yes")

# macros
README=$(tail -n +3 README)
README_DEB=$(tail -n +3 README | sed -e 's/^$/./g' -e 's/^/ /g')
DESCRIPTION=$(head -1 README)
AUTHOR=$(head -1 AUTHORS)
AC_SUBST(AUTHOR)
_AM_SUBST_NOTMAKE([AUTHOR])
AC_SUBST(DESCRIPTION)
_AM_SUBST_NOTMAKE([DESCRIPTION])
AC_SUBST(README)
_AM_SUBST_NOTMAKE([README])
AC_SUBST(README_DEB)
_AM_SUBST_NOTMAKE([README_DEB])
DISTRO=$(lsb_release -sc)
AC_SUBST(DISTRO)
BUILD_NUMBER=${BUILD_NUMBER:-1}
AC_SUBST(BUILD_NUMBER)
BUILD_DATE=$(date -R)
AC_SUBST(BUILD_DATE)

# export macros
SRCDIR=${srcdir}
AC_SUBST(SRCDIR)
AC_SUBST(SRC_DIR)
AC_SUBST(TST_DIR)
AC_SUBST(DOC_DIR)
AC_SUBST(HAVE_DOT)
AC_SUBST(THREADS)
AC_SUBST(AM_CXXFLAGS)
AC_SUBST(AM_CPPFLAGS)
AC_SUBST(LIBS)

# create output
AC_OUTPUT

# infos and warnings
if test "$have_doxygen" = "no"; then
AC_MSG_WARN([Missing program doxygen!
  - you cannot rebuild the documentation with make doc
  - there are precompiled derived files in the distribution]); fi
if test "$have_dot" = "no"; then
AC_MSG_WARN([Missing program dot!
  - when you rebild documentation with make doc, there are no generated images
  - there are precompiled derived files in the distribution]); fi
if test "$have_cppunit" = "no"; then
AC_MSG_WARN([Missing cppunit development library!
  - you cannot check the library using "make check"
  - everything else works perfectly]); fi
if test "$have_pedantic" == "yes"; then
AC_MSG_NOTICE([Pedantic compile mode enabled!
  - all warnings for GNU g++ are enabled
  - all warnings result in an error
  - doxygen warnings are treated as error too]); fi