dnl Process this file with autoconf to produce a configure script.

dnl graph-tool package version number
dnl An odd micro number indicates in-progress development.
dnl An even micro number indicates a released version.
m4_define(graph_tool_version_major, 1)
m4_define(graph_tool_version_minor, 9)
m4_define(graph_tool_version_micro, 0)

AC_INIT([graph-tool],
        [graph_tool_version_major().graph_tool_version_minor().graph_tool_version_micro()],
        [http://graph-tool.forked.de])

GRAPH_TOOL_VERSION_MAJOR=graph_tool_version_major()
GRAPH_TOOL_VERSION_MINOR=graph_tool_version_minor()
GRAPH_TOOL_VERSION_MICRO=graph_tool_version_micro()
AC_SUBST(GRAPH_TOOL_VERSION_MAJOR)
AC_SUBST(GRAPH_TOOL_VERSION_MINOR)
AC_SUBST(GRAPH_TOOL_VERSION_MICRO)

AC_CONFIG_SRCDIR(src)
AM_INIT_AUTOMAKE
AM_PROG_CC_C_O
AM_CONFIG_HEADER(config.h)

AC_ISC_POSIX
AC_SUBST(CXXFLAGS,$CXXFLAGS)
AC_GNU_SOURCE
AC_PROG_CXX
AC_LANG_CPLUSPLUS
AC_PROG_CC_STDC
AC_HEADER_STDC
AC_DISABLE_STATIC
AC_PROG_LIBTOOL
AC_PROG_INSTALL

dnl turn on warnings
CPPFLAGS="$CPPFLAGS -Wall"

dnl Checks for options

dnl Turn debugging on or off
AC_MSG_CHECKING(whether to enable debug info...)

AC_ARG_ENABLE([debug], [AC_HELP_STRING([--enable-debug@<:@=full@:>@],
        [compile debug information [default=yes] ])],
        [AC_MSG_RESULT(yes)]
        [AC_DEFINE([DEBUG], 1, [compile debug info])]
        [CXXFLAGS=" $CXXFLAGS -ggdb3 "],
        [AC_MSG_RESULT(no)]
        )

dnl set template depth and hidden visibility

[CXXFLAGS="$CXXFLAGS -ftemplate-depth-150 "]

AC_MSG_CHECKING(whether to enable function inlining...)

AC_ARG_ENABLE([inline], [AC_HELP_STRING([--disable-inline],
        [disable inline functions [default=enabled] ])],
        if test $enableval = no; then
           [AC_MSG_RESULT(no)]
           [AC_DEFINE([NO_INLINE], 1, [disable function inlining])]
           [CXXFLAGS="$CXXFLAGS -fno-inline -fno-default-inline"]
           NO_INLINE=yes
        else
           [AC_MSG_RESULT(yes)]
        fi
        ,
        [AC_MSG_RESULT(yes)]
        NO_INLINE=no
        )

AM_CONDITIONAL(NO_INLINE, test $NO_INLINE = yes)

AC_MSG_CHECKING(whether to enable optimizations...)

AC_ARG_ENABLE([optimization], [AC_HELP_STRING([--disable-optimization],
        [disable optimization [default=enabled] ])],
        [AC_MSG_RESULT(no)]
        ,
        [AC_MSG_RESULT(yes)]
        [CXXFLAGS="$CXXFLAGS -O99"]
        )

AC_MSG_CHECKING(whether to enable hidden visibility...)

AC_ARG_ENABLE([visibility], [AC_HELP_STRING([--disable-visibility],
        [disable hidden visibility [default=enabled] ])],
        [AC_MSG_RESULT(no)]
        ,
        [AC_MSG_RESULT(yes)]
        [CXXFLAGS="$CXXFLAGS -fvisibility=hidden -fvisibility-inlines-hidden"]
        )


AC_MSG_CHECKING(whether to enable graph filtering...)
AC_ARG_ENABLE([graph-filtering], [AC_HELP_STRING([--disable-graph-filtering],
        [disable graph filtering [default=enabled] ])],
        if test $enableval = no; then
           [AC_MSG_RESULT(no)]
           [AC_DEFINE([NO_GRAPH_FILTERING], 1, [disable graph filtering])]
           NO_GRAPH_FILTERING=yes
        else
           [AC_MSG_RESULT(yes)]
        fi
        ,
        [AC_MSG_RESULT(yes)]
        NO_GRAPH_FILTERING=no
        )

AC_MSG_CHECKING(whether to enable parallel algorithms with openmp...)
AC_ARG_ENABLE([openmp], [AC_HELP_STRING([--enable-openmp],
        [enable openmp [default=disabled] ])],
        if test $enableval = yes; then
           [AC_MSG_RESULT(yes)]
           [AC_DEFINE([USING_OPENMP], 1, [using openmp])]
           USING_OPENMP=yes
           [CXXFLAGS="$CXXFLAGS -fopenmp"]
           [OPENMP_LDFLAGS=" -lgomp "]
        fi
        ,
        [AC_MSG_RESULT(no)]
        [AC_DEFINE([USING_OPENMP], 0, [using openmp])]
        USING_OPENMP=no
        [CXXFLAGS="$CXXFLAGS -Wno-unknown-pragmas"]
        [OPENMP_LDFLAGS=""]
        )
AC_SUBST(OPENMP_LDFLAGS)

dnl Override prefix with default value if not set
if test "x${prefix}" = "xNONE"; then
  prefix=${ac_default_prefix}
fi

dnl Checks for programs.

dnl Checks for libraries.

dnl math library
AC_CHECK_LIB(m,main)

dnl bzip2 compression library
AC_CHECK_LIB(bz2,main)

dnl boost
AX_BOOST([1.33.1])
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"

dnl AX_BOOST_PYTHON

dnl expat
AC_CHECK_LIB(expat,main)

dnl python
AM_PATH_PYTHON([2.5])
AC_PYTHON_DEVEL(>= '2.5')
PYLIBDIR=`eval echo $pythondir`

#update compiler flags
CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"

dnl Checks for header files.

dnl numpy
NUMPY_DIR="${PYLIBDIR}/numpy"
AC_ARG_WITH([numpy], [AC_HELP_STRING([--with-numpy=DIR],
                     [directory where numpy is installed
                      [default=${PYLIBDIR}/numpy] ])],
        NUMPY_DIR=$withval)
NUMPY_DIR="${NUMPY_DIR}/core/include/numpy"
AC_CHECK_HEADER([${NUMPY_DIR}/arrayobject.h],
                [CPPFLAGS="$CPPFLAGS -I$NUMPY_DIR"],
                [AC_MSG_ERROR([Numpy extension header not found])],
                [#include "Python.h"])

dnl scipy
SCIPY_DIR="${PYLIBDIR}/scipy"
AC_ARG_WITH([scipy], [AC_HELP_STRING([--with-scipy=DIR],
                     [scipy install directory
                      [default=${PYLIBDIR}/scipy] ])],
        SCIPY_DIR=$withval)
AC_CHECK_HEADER([${SCIPY_DIR}/weave/scxx/object.h],
                [AC_DEFINE([HAVE_SCIPY], [1], [using scipy's weave])]
                [CPPFLAGS="$CPPFLAGS -I$SCIPY_DIR"])

dnl expat
AC_CHECK_HEADER([expat.h],
                [],
                [AC_MSG_ERROR([Expat header not found])])

dnl Checks for typedefs, structures, and compiler characteristics.
dnl Checks for library functions.

dnl Checks for Additional stuff.

dnl Set PACKAGE SOURCE DIR in config.h.
packagesrcdir=`cd $srcdir && pwd`

dnl Set PACKAGE PREFIX
if test "x${prefix}" = "xNONE"; then
  packageprefix=${ac_default_prefix}
else
  packageprefix=${prefix}
fi

dnl Set PACKAGE DATA & DOC DIR
packagedatadir=share/${PACKAGE}
packagedocdir=doc/${PACKAGE}


dnl Subst PACKAGE_DATA_DIR.
NO_PREFIX_PACKAGE_DATA_DIR="${packagedatadir}"
AC_SUBST(NO_PREFIX_PACKAGE_DATA_DIR)
PACKAGE_DATA_DIR="${packageprefix}/${packagedatadir}"
AC_SUBST(PACKAGE_DATA_DIR)

dnl Subst PACKAGE_DOC_DIR.
NO_PREFIX_PACKAGE_DOC_DIR="${packagedocdir}"
AC_SUBST(NO_PREFIX_PACKAGE_DOC_DIR)
PACKAGE_DOC_DIR="${packageprefix}/${packagedocdir}"
AC_SUBST(PACKAGE_DOC_DIR)

dnl Subst PYTHON_DIR.
AC_DEFINE_UNQUOTED([INSTALL_PREFIX],"${prefix}", [python prefix])
AC_DEFINE_UNQUOTED([PYTHON_DIR], "${PYLIBDIR}", [The directory name for the site-packages subdirectory of the standard Python install tree.])

AC_DEFINE_UNQUOTED([CXXFLAGS],"${CXXFLAGS}", [c++ compilation options])
AC_DEFINE_UNQUOTED([CPPFLAGS],"${CPPFLAGS}", [c++ preprocessor compilation options])

AC_DEFINE_UNQUOTED([PACKAGE_DATA_DIR], "${packageprefix}/${packagedatadir}", [package data dir])
AC_DEFINE_UNQUOTED([PACKAGE_DOC_DIR], "${packageprefix}/${packagedocdir}", [package doc dir])
AC_DEFINE_UNQUOTED([PACKAGE_SOURCE_DIR], "${packagesrcdir}", [package source dir])

AC_DEFINE_UNQUOTED([AUTHOR], "Tiago de Paula Peixoto <tiago@forked.de>", [program author(s)])

AC_DEFINE_UNQUOTED([COPYRIGHT],
    "Copyright (C) 2008 Tiago de Paula Peixoto\nThis is free software; see the source for copying conditions.  There is NO\nwarranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.",
	[copyright info])

# git information
AC_DEFINE([GIT_COMMIT], "esyscmd(git show | head -n 1 | sed 's/commit //' |  grep -o -e '.\{8\}' | head -n 1 |tr -d '\n')", [git HEAD commit hash])
AC_DEFINE([GIT_COMMIT_DATE], "esyscmd(git log -1 | head -n 3 | grep 'Date:' | sed s/'Date:   '// | tr -d '\n')", [git HEAD commit date])

AC_OUTPUT([
Makefile
src/Makefile
src/graph/Makefile
src/graph/correlations/Makefile
src/graph/generation/Makefile
src/graph/stats/Makefile
src/graph/clustering/Makefile
src/graph/util/Makefile
src/graph_tool/Makefile
])