File: configure.in

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dnl Process this file with autoconf to produce a configure script.
AC_INIT([Open Babel], 2.2.0, openbabel-discuss@lists.sourceforge.net, openbabel)
AC_PREREQ([2.61])
AC_CONFIG_SRCDIR(src/zipstreamimpl.h)
AM_INIT_AUTOMAKE([no-define])
AM_MAINTAINER_MODE
AX_MAINTAINER_MODE_AUTO_SILENT
AM_CONFIG_HEADER(src/config.h)
AC_CONFIG_MACRO_DIR([autoconf])
AC_DEFINE_UNQUOTED([BABEL_VERSION], ["AC_PACKAGE_VERSION"], [The version of Open Babel])

AC_ARG_ENABLE(wx-gui,
	AS_HELP_STRING([--enable-wx-gui],
		       [enable building the wxWidget GUI (experimental)]),
		[wx_gui="$enable_wx_gui"],
		[wx_gui="no"])

AC_ARG_ENABLE(inchi,
	AS_HELP_STRING([--disable-inchi],
		       [do not build the InChI library]),
		[inchi="$enable_inchi"],
		[inchi="yes"])

AC_ARG_ENABLE(dynamic-modules,
	AS_HELP_STRING([--disable-dynamic-modules],
		       [disable building shared file format modules]),
		[dynamic_modules="$enable_dynamic_modules"],
		[dynamic_modules="yes"])

AC_ARG_ENABLE(precompiled-headers,
  AS_HELP_STRING([--enable-precompiled-headers],
           [enable building with precompiled headers]),
    [precompiled_headers="$enable_precompiled_headers"],
    [precompiled_headers="no"])

AC_CANONICAL_HOST
AC_DISABLE_STATIC

AC_DEFINE_DIR([BABEL_DATADIR], [datadir/AC_PACKAGE_TARNAME], [Where the data files are located])

AH_VERBATIM([ADEFINE],
[/* Used by other #define statements for symbol exporting
 Use symbol hiding in GCC 4.0 and later where available */
#ifdef HAVE_GCC_VISIBILITY
  #define OB_EXPORT __attribute__ ((visibility("default")))
  #define OB_IMPORT __attribute__ ((visibility("default")))
  #define OB_HIDDEN __attribute__ ((visibility("hidden")))
#elif defined(WIN32)
  #define OB_EXPORT __declspec(dllexport)
  #define OB_IMPORT __declspec(dllimport)
  #define OB_HIDDEN
#else
  #define OB_EXPORT
  #define OB_IMPORT
  #define OB_HIDDEN
#endif
])

AH_VERBATIM([OBAPI], 
[/* Used to export symbols for DLL / shared library builds */
#if defined(USING_OBDLL) // e.g. in src/main.cpp
  #define OBAPI OB_IMPORT
#else
  #define OBAPI OB_EXPORT
#endif
])

AH_VERBATIM([EXTERN], 
[/* Used to export symbols for DLL / shared library builds */
#if defined(USING_OBDLL) // e.g. in src/main.cpp
  #define EXTERN OB_IMPORT extern
#else
  #define EXTERN OB_EXPORT extern
#endif
])

AH_VERBATIM([OBCONV], 
[/* Used to export symbols for DLL / shared library builds */
#if defined(USING_OBDLL) // e.g. in src/main.cpp
  #define OBCONV OB_IMPORT
#else
  #define OBCONV OB_EXPORT
#endif
])

AH_VERBATIM([OBERROR], 
[/* Used to export symbols for DLL / shared library builds */
#if defined(USING_OBDLL) // e.g. in src/main.cpp
  #define OBERROR OB_IMPORT
#else
  #define OBERROR OB_EXPORT
#endif
])

AH_VERBATIM([OBFPRT],
[/* Used to export symbols for DLL / shared library builds */
#if defined(USING_OBDLL) // e.g. in src/main.cpp
  #define OBFPRT OB_IMPORT
#else
  #define OBFPRT OB_EXPORT
#endif
])

AH_VERBATIM([OBCOMMON], 
[/* Used to export symbols for DLL / shared library builds */
#if defined(USING_OBDLL) // e.g. in src/main.cpp
  #define OBCOMMON OB_IMPORT
#else
  #define OBCOMMON OB_EXPORT
#endif
])

dnl Check for Boost base
AX_BOOST_BASE([1.33.1])

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_CXXCPP
AC_PROG_INSTALL
AC_PATH_PROG(DOXYGEN, doxygen)
AC_PATH_PROG(SWIG, swig)
AC_PATH_PROG(PERL, perl)
AC_PATH_PROG(PROVE, prove)
AC_PATH_PROG(PYTHON, python)
AC_PATH_PROG(RUBY, ruby)

dnl Conditionally build docs, scripts, etc.

dnl check for wx widgets for src/GUI
AC_ARG_VAR(
 [WXCONFIG],
 [Use the given path to wx-config when determining
  wxWidgets configuration.]
)
AC_PATH_PROG([WXCONFIG], [wx-config])
AC_SUBST([WXCONFIG])

if test "$wx_gui" = "yes"; then
  if test x"$WXCONFIG" != "x" ; then
    AC_MSG_CHECKING([wxWidgets version])
    if wxversion=`$WXCONFIG --version`; then
        AC_MSG_RESULT([$wxversion])
    else
        AC_MSG_RESULT([not found])
    fi

    WX_CPPFLAGS="`$WXCONFIG --cppflags`"
    WX_CXXFLAGS="`$WXCONFIG --cxxflags | sed -e 's/-fno-exceptions//'`"
    WX_LIBS="`$WXCONFIG --libs`"

    dnl only needed for wx GUI
    AC_SUBST([WX_LIBS])
    AC_SUBST([WX_CXXFLAGS])
    AC_SUBST([WX_CPPFLAGS])
  fi
fi
AM_CONDITIONAL([BUILD_WXGUI], [test x"$wxversion" != "x" -a "$wx_gui" = "yes"])

dnl Use Perl's "prove" test harness to run unit tests
AM_CONDITIONAL(PERL_TESTS, test x"$PROVE" != "x")

AM_CONDITIONAL(BUILD_DOCS, test x"$DOXYGEN" != "x")
if test x"$DOXYGEN" = "x"; then
AC_MSG_WARN(Cannot find doxygen to build documentation. 
	Have a look at http://www.doxygen.org/)
fi

dnl Build SWIG interfaces -- ideally use the latest SWIG available!!
dnl (this will happen also only if MAINTAINER_MODE is set
AM_CONDITIONAL(BUILD_SWIG, test x"$SWIG" != "x")

SCRIPTING="no"
if test x"$SWIG" != "x"; then
SCRIPTING="yes"
elif test x"$PYTHON" != "x"; then
SCRIPTING="yes"
elif test x"$PERL" != "x"; then
SCRIPTING="yes"
fi
AM_CONDITIONAL(BUILD_SCRIPTS, test "$SCRIPTING" = "yes")

AM_CONDITIONAL(BUILD_RUBY, test x"$RUBY" != "x")

dnl libtool
dnl You can set the shared library version in src/Makefile.am
dnl AC_DISABLE_SHARED
dnl We do support DLLs on Win32 systems
AC_LIBTOOL_WIN32_DLL
AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL

case $host in
     *-*-mingw*)
        dynamic_modules="no"
        ;;
esac
AM_CONDITIONAL(BUILD_SHARED, test "$dynamic_modules" = "yes" -a "$enable_shared" = "yes")

oldmodule=$module
module=yes
eval std_shrext=\"$shrext_cmds\"
AC_DEFINE_UNQUOTED([MODULE_EXTENSION], ["$std_shrext"], [The file extension used for shared modules])
module=$oldmodule

AM_CONDITIONAL(BUILD_PCH, test "$precompiled_headers" = "yes")

pkglibdir='$(libdir)/$(PACKAGE)'
AC_ARG_WITH(
	[pkglibdir],
	[AC_HELP_STRING(
		[--with-pkglibdir=DIR],
		[path to plugins installation directory [default=$(libdir)/openbabel]]
	)],
	[pkglibdir=$withval]
)

AC_SUBST(pkglibdir)

AC_C_BIGENDIAN

AC_LANG_CPLUSPLUS
dnl Checks for libraries.
AC_CHECK_LIB(m, asin, , exit)
AC_CHECK_LIB(c, dlopen, LIBDL="", [AC_CHECK_LIB(dl, dlopen, LIBDL="-ldl")])
AC_SUBST(LIBDL)

AM_PATH_XML2(2.6.5)
AM_CONDITIONAL(BUILD_XML, test x"$XML_LIBS" != "x")

AC_CHECK_LIB(inchi, GetINCHI, LIBINCHI="-linchi", LIBINCHI="")
AM_CONDITIONAL(BUILD_INCHI, test x"$LIBINCHI" = "x" -o "$inchi" = "yes")

CHECK_ZLIB
AC_CHECK_LIB(z, inflateEnd)
AC_CHECK_HEADERS(zlib.h iconv.h)
AM_CONDITIONAL(BUILD_ZLIB, [test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"])

dnl Checks for header files.
AC_CHECK_HEADERS(sys/time.h unistd.h stdlib.h stdio.h conio.h string.h)
AC_CHECK_HEADERS(strstream.h iostream.h fstream.h math.h time.h)
AC_CHECK_HEADERS(ctype.h iostream fstream sstream strstream)
AC_CHECK_HEADERS(tr1/memory)
AC_CHECK_HEADERS(rpc/types.h)
AC_CHECK_HEADERS(rpc/xdr.h, [] , [],
#ifdef HAVE_RPC_TYPES_H
# include <rpc/types.h>
# endif
)
AC_CHECK_HEADERS(xlocale.h locale.h)
AC_HEADER_TIME

dnl Set a flag for Automake if shared_pointer is available
AM_CONDITIONAL([HAVE_SHARED_POINTER], [test "$ac_cv_header_tr1_memory" = "yes" -o "$have_boost" = "yes"])
dnl OpenBabel will use BOOST only if tr1/memory is not available
if test "$have_boost" = "yes" -a "$ac_cv_header_tr1_memory" != "yes"; then
    AC_DEFINE([USE_BOOST], [], [Using BOOST for shared_pointer])
    use_boost=yes
fi
AM_CONDITIONAL([USE_BOOST_FLAGS], [test "$use_boost" = "yes"])

dnl Checks for typedefs, structures, and compiler characteristics.
AC_CHECK_TYPES(clock_t)
AC_C_CONST
AC_C_INLINE

dnl Checks for library functions.
AC_CHECK_FUNCS([rint sranddev uselocale])
AC_REPLACE_FUNCS([snprintf strncasecmp])

AH_VERBATIM([SNPRTF], 
[
#if !HAVE_SNPRINTF
extern "C" int snprintf( char *, size_t, const char *, /* args */ ...);
#endif
])

dnl Gotta figure out whether scandir needs a const or not for the 3rd arg.
AC_MSG_CHECKING([whether scandir needs a const cast])
AC_COMPILE_IFELSE([
#include <sys/types.h>
#include <dirent.h>
 extern int matchFiles (struct dirent *entry_p);
 struct dirent **entries_pp;
 int count = scandir ("./", &entries_pp, $dirent_t matchFiles, 0);
], 
[ AC_DEFINE(SCANDIR_T, , [set if scandir needs a const]) 
  AC_DEFINE(SCANDIR_CONST, , [set if scandir needs a const])
scandirconst_cast=no], 
[ AC_DEFINE(SCANDIR_T, [(int (*)(const dirent *))], [set if scandir needs a const]) 
  AC_DEFINE(SCANDIR_CONST, [const])
scandirconst_cast=yes])

AC_MSG_RESULT([$scandirconst_cast], [set if scandir needs a const])

AC_CONFIG_COMMANDS([include/openbabel/babelconfig.h], 
                   [grep -v PACKAGE src/config.h >include/openbabel/babelconfig.h])

AC_OUTPUT(Makefile data/Makefile src/Makefile src/math/Makefile \
		   src/formats/Makefile src/fingerprints/Makefile \
		   src/formats/xml/Makefile src/formats/inchi/Makefile \
       src/forcefields/Makefile src/GUI/Makefile \
       src/descriptors/Makefile src/ops/Makefile \
       include/Makefile include/openbabel/Makefile \
       include/openbabel/math/Makefile \
		   test/Makefile test/cmltest/Makefile tools/Makefile \
		   doc/Makefile scripts/Makefile openbabel-2.0.pc \
		   )