configure.ac - third_party/yasm - Git at Google

 # Process this file with autoconf to produce a configure script.
 # $Id$

 #
 # autoconf setup
 #
 AC_PREREQ(2.53)
 AC_INIT([yasm], [0.8.0], [bug-yasm@tortall.net])
 #AC_CONFIG_SRCDIR([src/main.c])
 AC_CONFIG_AUX_DIR(config)
 AM_CONFIG_HEADER([config.h])

 AM_INIT_AUTOMAKE(yasm, [0.8.0])
 AM_MAINTAINER_MODE

 AC_DEFINE(PACKAGE_INTVER, ["0.8.0"],
 	  [Define to internal version of this package.])
 AC_DEFINE(PACKAGE_BUILD, ["2194"], [Define to build version of this package.])

 #
 # autoconf command-line options
 #
 AC_ARG_ENABLE(debug,
 AC_HELP_STRING([--enable-debug],
 	       [Turn on debugging and compile time warnings]),
 [case "${enableval}" in
   yes) debugging="yes" ;;
   no)  debugging="no" ;;
   *) AC_MSG_ERROR([bad value ${enableval} for --enable-debug]) ;;
 esac])

 AC_ARG_ENABLE(warnerror,
 AC_HELP_STRING([--enable-warnerror],[Treat GCC warnings as errors]),
 [case "${enableval}" in
   yes) warnerror="yes" ;;
   no)  warnerror="no" ;;
   *) AC_MSG_ERROR([bad value ${enableval} for --enable-warnerror]) ;;
 esac])

 AC_ARG_ENABLE(profiling,
 AC_HELP_STRING([--enable-profiling],[Enable profiling (requires GCC)]),
 [case "${enableval}" in
   yes) profiling="yes" ;;
   no)  profiling="no" ;;
   *) AC_MSG_ERROR([bad value ${enableval} for --enable-profiling]) ;;
 esac])

 AC_ARG_ENABLE(gcov,
 AC_HELP_STRING([--enable-gcov],[Enable gcov code coverage (requires GCC)]),
 [case "${enableval}" in
   yes) gcov="yes" ;;
   no)  gcov="no" ;;
   *) AC_MSG_ERROR([bad value ${enableval} for --enable-gcov]) ;;
 esac])

 AC_ARG_ENABLE(python,
 AC_HELP_STRING([--enable-python],[Enable Python-requiring portions of build]),
 [case "${enableval}" in
   yes) enable_python="yes" ;;
   no)  enable_python="no" ;;
   *) AC_MSG_ERROR([bad value ${enableval} for --enable-python]) ;;
 esac], enable_python="auto")

 AC_ARG_ENABLE(python-bindings,
 AC_HELP_STRING([--enable-python-bindings],[Build Python bindings]),
 [case "${enableval}" in
   yes) enable_python_bindings="yes" ;;
   no)  enable_python_bindings="no" ;;
   *) AC_MSG_ERROR([bad value ${enableval} for --enable-python-bindings]) ;;
 esac], enable_python_bindings="no")

 #
 # Checks for programs.
 #
 AC_PROG_CPP
 AC_DEFINE_UNQUOTED([CPP_PROG], "${CPP}", [Command name to run C preprocessor])
 AC_PROG_CC_STDC
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_RANLIB

 # REQUIRE a standard (ANSI/ISO) C compiler
 if test "$ac_cv_prog_cc_stdc" = no; then
 	AC_MSG_ERROR([A standard (ANSI/ISO C89) C compiler is required.])
 fi

 # Check for xmlto (for rendering manpages, needed only for development)
 AC_CHECK_PROGS([XMLTO], [$XMLTO xmlto], [:])
 if test "$XMLTO" = ":"; then
   AC_MSG_WARN([xmlto not found, manpages will not be rebuilt.])
 fi
 AM_CONDITIONAL(BUILD_MAN, test "$XMLTO" != ":")

 # Check for compiler output filename suffixes.
 AC_OBJEXT
 AC_EXEEXT

 #
 # Checks for libraries.
 #
 AM_WITH_DMALLOC

 #
 # Checks for header files.
 #
 AC_HEADER_STDC
 AC_CHECK_HEADERS([strings.h libgen.h unistd.h direct.h])

 # REQUIRE standard C headers
 if test "$ac_cv_header_stdc" != yes; then
 	AC_MSG_ERROR([Standard (ANSI/ISO C89) header files are required.])
 fi

 #
 # Checks for typedefs, structures, and compiler characteristics.
 #
 AC_C_CONST
 AC_C_INLINE
 AC_C_PROTOTYPES
 AC_TYPE_SIZE_T
 AX_CREATE_STDINT_H([libyasm-stdint.h])

 #
 # Checks for library functions.
 #
 AC_CHECK_FUNCS([abort toascii vsnprintf])
 AC_CHECK_FUNCS([strsep mergesort getcwd])
 AC_CHECK_FUNCS([popen ftruncate])
 # Look for the case-insensitive comparison functions
 AC_CHECK_FUNCS([strcasecmp strncasecmp stricmp _stricmp strcmpi])

 #
 # Check for gettext() and other i18n/l10n things.
 #
 ALL_LINGUAS=""
 AM_GNU_GETTEXT([external])
 # autoheader templates for AM_GNU_GETTEXT checks.
 AH_TEMPLATE([ENABLE_NLS], [])
 AH_TEMPLATE([HAVE_CATGETS], [])
 AH_TEMPLATE([HAVE_GETTEXT], [])
 AH_TEMPLATE([HAVE_LC_MESSAGES], [])
 AH_TEMPLATE([HAVE_STPCPY], [])

 # Check for GNU C Library
 AH_TEMPLATE([HAVE_GNU_C_LIBRARY], [Define to 1 if you have the GNU C Library])
 AC_CACHE_CHECK([for GNU C Library], yasm_cv_header_gnulib,
 	AC_EGREP_CPP(gnulib,
 	[#include <features.h>
 	#ifdef __GNU_LIBRARY__
 	  gnulib
 	#endif
 	], yasm_cv_header_gnulib=yes, yasm_cv_header_gnulib=no))
 if test "$yasm_cv_header_gnulib" = yes; then
 	AC_DEFINE([HAVE_GNU_C_LIBRARY])
 fi

 # Force x86 architecture only for now.
 ARCH=x86
 AC_SUBST([ARCH])
 AC_SUBST([GCC])

 # Require things for --enable-maintainer-mode option.
 if test "$USE_MAINTAINER_MODE" = "yes"; then
   # Enable debugging
   if test "$debugging" != "no"; then
     debugging=yes
   fi

   # Enable more warnings
   if test "$GCC" = "yes"; then
     MORE_CFLAGS="$MORE_CFLAGS -W"
     MORE_CFLAGS="$MORE_CFLAGS -Waggregate-return"
     MORE_CFLAGS="$MORE_CFLAGS -Wbad-function-cast"
     MORE_CFLAGS="$MORE_CFLAGS -Wcast-align"
     MORE_CFLAGS="$MORE_CFLAGS -Wcast-qual"
     MORE_CFLAGS="$MORE_CFLAGS -Wchar-subscripts"
 #    MORE_CFLAGS="$MORE_CFLAGS -Wconversion"
 #    MORE_CFLAGS="$MORE_CFLAGS -Wdeclaration-after-statement"
 #    MORE_CFLAGS="$MORE_CFLAGS -Wendif-labels"
     MORE_CFLAGS="$MORE_CFLAGS -Winline"
     MORE_CFLAGS="$MORE_CFLAGS -Wmissing-declarations"
     MORE_CFLAGS="$MORE_CFLAGS -Wmissing-prototypes"
     MORE_CFLAGS="$MORE_CFLAGS -Wnested-externs"
     MORE_CFLAGS="$MORE_CFLAGS -Wpointer-arith"
     MORE_CFLAGS="$MORE_CFLAGS -Wreturn-type"
     MORE_CFLAGS="$MORE_CFLAGS -Wshadow"
     MORE_CFLAGS="$MORE_CFLAGS -Wsign-compare"
     MORE_CFLAGS="$MORE_CFLAGS -Wstrict-prototypes"
     MORE_CFLAGS="$MORE_CFLAGS -Wswitch"
     MORE_CFLAGS="$MORE_CFLAGS -Wwrite-strings"
     MORE_CFLAGS="$MORE_CFLAGS -Wno-undef"
 #    MORE_CFLAGS="$MORE_CFLAGS -Wno-unused"
     MORE_CFLAGS="$MORE_CFLAGS -Wno-unused-parameter"
   fi
 fi

 #
 # Add some more CFLAGS for various options.
 #

 if test "$debugging" = "no" ; then
   changequote(,)
   CFLAGS="`echo $CFLAGS' ' | sed -e 's/-g[0-9] //g' | sed -e 's/-g//g'`"
   changequote([,])
 fi

 # Turn warnings into errors
 if test "$warnerror" = "yes"; then
   if test "$GCC" = "yes"; then
     MORE_CFLAGS="$MORE_CFLAGS -Werror"
   fi
 fi

 # Enable output of profiling information
 if test "$profiling" = "yes"; then
   if test "$GCC" = "yes"; then
     MORE_CFLAGS="$MORE_CFLAGS -pg"
   fi
 fi

 # Enable output of gcov information
 if test "$gcov" = "yes"; then
   if test "$GCC" = "yes"; then
     MORE_CFLAGS="$MORE_CFLAGS -fprofile-arcs -ftest-coverage"
   fi
 fi

 # If we're using GCC, then we can turn on -ansi -pedantic -Wall too.
 if test "$USE_MAINTAINER_MODE" = "yes"; then
   if test "$GCC" = yes; then
     MORE_CFLAGS="-ansi -pedantic -Wall $MORE_CFLAGS"
   fi
 fi
 AC_SUBST(MORE_CFLAGS)

 #
 # Cross-building
 #
 if test "$cross_compiling" = "yes"; then
     AC_MSG_CHECKING([cc for build])
     CC_FOR_BUILD="${CC_FOR_BUILD-PATH=/usr/bin:$PATH cc}"
     AC_MSG_RESULT($CC_FOR_BUILD)
     CCLD_FOR_BUILD="$CC_FOR_BUILD"
 else
     CC_FOR_BUILD="${CC_FOR_BUILD-$CC}"
     CCLD_FOR_BUILD="${CCLD_FOR_BUILD-$CC}"
 fi

 AC_ARG_VAR(CC_FOR_BUILD,[build system C compiler])
 AC_ARG_VAR(CCLD_FOR_BUILD,[build system C linker frontend])
 AC_SUBST(CC_FOR_BUILD)
 AC_SUBST(CCLD_FOR_BUILD)

 # libtool erroneously calls CC_FOR_BUILD HOST_CC;
 # --host is the platform that the package is compiled for.
 HOST_CC="$CC_FOR_BUILD"
 AC_SUBST(HOST_CC)

 # Detect if we have Python
 if test x$enable_python = xno; then
     have_python=no
 else
     AC_MSG_NOTICE([Checking for Python])
     have_python=no
     AM_PATH_PYTHON(2.4,[],[AC_MSG_WARN([Python not found])])

     if test -z "$PYTHON" || test "$PYTHON" = : ; then
         have_python=no
     else
         have_python=yes
     fi

     if test x$have_python = xno ; then
         if test x$enable_python = xyes ; then
             AC_MSG_ERROR([Python explicitly requested, but a suitable Python version was not found])
         else
             AC_MSG_WARN([Could not find a suitable version of Python])
         fi
     fi
 fi

 # Detect if we can build Python bindings
 # (needs Python, Python headers, and Pyrex)
 if test x$enable_python_bindings = xno; then
     have_python_bindings=no
 else
     AC_MSG_NOTICE([Checking to see if we can build Python bindings])
     have_python_bindings=no
     if test x$have_python = xyes; then
         AC_MSG_CHECKING([for Pyrex >= 0.9.5.1])
         PYREX_CHECK_VERSION(0.9.5.1, [AC_MSG_RESULT(yes)
                                       have_pyrex=yes],
                                      [AC_MSG_RESULT(no)
                                       have_pyrex=no])

         AM_CHECK_PYTHON_HEADERS(have_python_headers=yes,have_python_headers=no)

         if test x$have_pyrex = xyes -a x$have_python_headers = xyes ; then
             have_python_bindings=yes
         fi
     fi

     if test x$have_python_bindings = xno ; then
         if test x$enable_python_bindings = xyes ; then
             AC_MSG_ERROR([Building Python bindings explicitly requested, but can't build Python bindings because either Pyrex, Python headers or a suitable Python version was not found])
         else
             AC_MSG_WARN([Couldn't find either Pyrex, the Python headers or a suitable version of Python, not building Python bindings])
         fi
     fi
 fi

 AM_CONDITIONAL(HAVE_PYTHON, test x$have_python = xyes)
 AM_CONDITIONAL(HAVE_PYTHON_BINDINGS, test x$have_python_bindings = xyes)

 AC_CONFIG_FILES([Makefile
 	po/Makefile.in
 ])
 AC_OUTPUT
	# Process this file with autoconf to produce a configure script.
	# $Id$

	#
	# autoconf setup
	#
	AC_PREREQ(2.53)
	AC_INIT([yasm], [0.8.0], [bug-yasm@tortall.net])
	#AC_CONFIG_SRCDIR([src/main.c])
	AC_CONFIG_AUX_DIR(config)
	AM_CONFIG_HEADER([config.h])

	AM_INIT_AUTOMAKE(yasm, [0.8.0])
	AM_MAINTAINER_MODE

	AC_DEFINE(PACKAGE_INTVER, ["0.8.0"],
	[Define to internal version of this package.])
	AC_DEFINE(PACKAGE_BUILD, ["2194"], [Define to build version of this package.])

	#
	# autoconf command-line options
	#
	AC_ARG_ENABLE(debug,
	AC_HELP_STRING([--enable-debug],
	[Turn on debugging and compile time warnings]),
	[case "${enableval}" in
	yes) debugging="yes" ;;
	no) debugging="no" ;;
	*) AC_MSG_ERROR([bad value ${enableval} for --enable-debug]) ;;
	esac])

	AC_ARG_ENABLE(warnerror,
	AC_HELP_STRING([--enable-warnerror],[Treat GCC warnings as errors]),
	[case "${enableval}" in
	yes) warnerror="yes" ;;
	no) warnerror="no" ;;
	*) AC_MSG_ERROR([bad value ${enableval} for --enable-warnerror]) ;;
	esac])

	AC_ARG_ENABLE(profiling,
	AC_HELP_STRING([--enable-profiling],[Enable profiling (requires GCC)]),
	[case "${enableval}" in
	yes) profiling="yes" ;;
	no) profiling="no" ;;
	*) AC_MSG_ERROR([bad value ${enableval} for --enable-profiling]) ;;
	esac])

	AC_ARG_ENABLE(gcov,
	AC_HELP_STRING([--enable-gcov],[Enable gcov code coverage (requires GCC)]),
	[case "${enableval}" in
	yes) gcov="yes" ;;
	no) gcov="no" ;;
	*) AC_MSG_ERROR([bad value ${enableval} for --enable-gcov]) ;;
	esac])

	AC_ARG_ENABLE(python,
	AC_HELP_STRING([--enable-python],[Enable Python-requiring portions of build]),
	[case "${enableval}" in
	yes) enable_python="yes" ;;
	no) enable_python="no" ;;
	*) AC_MSG_ERROR([bad value ${enableval} for --enable-python]) ;;
	esac], enable_python="auto")

	AC_ARG_ENABLE(python-bindings,
	AC_HELP_STRING([--enable-python-bindings],[Build Python bindings]),
	[case "${enableval}" in
	yes) enable_python_bindings="yes" ;;
	no) enable_python_bindings="no" ;;
	*) AC_MSG_ERROR([bad value ${enableval} for --enable-python-bindings]) ;;
	esac], enable_python_bindings="no")

	#
	# Checks for programs.
	#
	AC_PROG_CPP
	AC_DEFINE_UNQUOTED([CPP_PROG], "${CPP}", [Command name to run C preprocessor])
	AC_PROG_CC_STDC
	AC_PROG_INSTALL
	AC_PROG_LN_S
	AC_PROG_RANLIB

	# REQUIRE a standard (ANSI/ISO) C compiler
	if test "$ac_cv_prog_cc_stdc" = no; then
	AC_MSG_ERROR([A standard (ANSI/ISO C89) C compiler is required.])
	fi

	# Check for xmlto (for rendering manpages, needed only for development)
	AC_CHECK_PROGS([XMLTO], [$XMLTO xmlto], [:])
	if test "$XMLTO" = ":"; then
	AC_MSG_WARN([xmlto not found, manpages will not be rebuilt.])
	fi
	AM_CONDITIONAL(BUILD_MAN, test "$XMLTO" != ":")

	# Check for compiler output filename suffixes.
	AC_OBJEXT
	AC_EXEEXT

	#
	# Checks for libraries.
	#
	AM_WITH_DMALLOC

	#
	# Checks for header files.
	#
	AC_HEADER_STDC
	AC_CHECK_HEADERS([strings.h libgen.h unistd.h direct.h])

	# REQUIRE standard C headers
	if test "$ac_cv_header_stdc" != yes; then
	AC_MSG_ERROR([Standard (ANSI/ISO C89) header files are required.])
	fi

	#
	# Checks for typedefs, structures, and compiler characteristics.
	#
	AC_C_CONST
	AC_C_INLINE
	AC_C_PROTOTYPES
	AC_TYPE_SIZE_T
	AX_CREATE_STDINT_H([libyasm-stdint.h])

	#
	# Checks for library functions.
	#
	AC_CHECK_FUNCS([abort toascii vsnprintf])
	AC_CHECK_FUNCS([strsep mergesort getcwd])
	AC_CHECK_FUNCS([popen ftruncate])
	# Look for the case-insensitive comparison functions
	AC_CHECK_FUNCS([strcasecmp strncasecmp stricmp _stricmp strcmpi])

	#
	# Check for gettext() and other i18n/l10n things.
	#
	ALL_LINGUAS=""
	AM_GNU_GETTEXT([external])
	# autoheader templates for AM_GNU_GETTEXT checks.
	AH_TEMPLATE([ENABLE_NLS], [])
	AH_TEMPLATE([HAVE_CATGETS], [])
	AH_TEMPLATE([HAVE_GETTEXT], [])
	AH_TEMPLATE([HAVE_LC_MESSAGES], [])
	AH_TEMPLATE([HAVE_STPCPY], [])

	# Check for GNU C Library
	AH_TEMPLATE([HAVE_GNU_C_LIBRARY], [Define to 1 if you have the GNU C Library])
	AC_CACHE_CHECK([for GNU C Library], yasm_cv_header_gnulib,
	AC_EGREP_CPP(gnulib,
	[#include <features.h>
	#ifdef __GNU_LIBRARY__
	gnulib
	#endif
	], yasm_cv_header_gnulib=yes, yasm_cv_header_gnulib=no))
	if test "$yasm_cv_header_gnulib" = yes; then
	AC_DEFINE([HAVE_GNU_C_LIBRARY])
	fi

	# Force x86 architecture only for now.
	ARCH=x86
	AC_SUBST([ARCH])
	AC_SUBST([GCC])

	# Require things for --enable-maintainer-mode option.
	if test "$USE_MAINTAINER_MODE" = "yes"; then
	# Enable debugging
	if test "$debugging" != "no"; then
	debugging=yes
	fi

	# Enable more warnings
	if test "$GCC" = "yes"; then
	MORE_CFLAGS="$MORE_CFLAGS -W"
	MORE_CFLAGS="$MORE_CFLAGS -Waggregate-return"
	MORE_CFLAGS="$MORE_CFLAGS -Wbad-function-cast"
	MORE_CFLAGS="$MORE_CFLAGS -Wcast-align"
	MORE_CFLAGS="$MORE_CFLAGS -Wcast-qual"
	MORE_CFLAGS="$MORE_CFLAGS -Wchar-subscripts"
	# MORE_CFLAGS="$MORE_CFLAGS -Wconversion"
	# MORE_CFLAGS="$MORE_CFLAGS -Wdeclaration-after-statement"
	# MORE_CFLAGS="$MORE_CFLAGS -Wendif-labels"
	MORE_CFLAGS="$MORE_CFLAGS -Winline"
	MORE_CFLAGS="$MORE_CFLAGS -Wmissing-declarations"
	MORE_CFLAGS="$MORE_CFLAGS -Wmissing-prototypes"
	MORE_CFLAGS="$MORE_CFLAGS -Wnested-externs"
	MORE_CFLAGS="$MORE_CFLAGS -Wpointer-arith"
	MORE_CFLAGS="$MORE_CFLAGS -Wreturn-type"
	MORE_CFLAGS="$MORE_CFLAGS -Wshadow"
	MORE_CFLAGS="$MORE_CFLAGS -Wsign-compare"
	MORE_CFLAGS="$MORE_CFLAGS -Wstrict-prototypes"
	MORE_CFLAGS="$MORE_CFLAGS -Wswitch"
	MORE_CFLAGS="$MORE_CFLAGS -Wwrite-strings"
	MORE_CFLAGS="$MORE_CFLAGS -Wno-undef"
	# MORE_CFLAGS="$MORE_CFLAGS -Wno-unused"
	MORE_CFLAGS="$MORE_CFLAGS -Wno-unused-parameter"
	fi
	fi

	#
	# Add some more CFLAGS for various options.
	#

	if test "$debugging" = "no" ; then
	changequote(,)
	CFLAGS="`echo $CFLAGS' ' \| sed -e 's/-g[0-9] //g' \| sed -e 's/-g//g'`"
	changequote([,])
	fi

	# Turn warnings into errors
	if test "$warnerror" = "yes"; then
	if test "$GCC" = "yes"; then
	MORE_CFLAGS="$MORE_CFLAGS -Werror"
	fi
	fi

	# Enable output of profiling information
	if test "$profiling" = "yes"; then
	if test "$GCC" = "yes"; then
	MORE_CFLAGS="$MORE_CFLAGS -pg"
	fi
	fi

	# Enable output of gcov information
	if test "$gcov" = "yes"; then
	if test "$GCC" = "yes"; then
	MORE_CFLAGS="$MORE_CFLAGS -fprofile-arcs -ftest-coverage"
	fi
	fi

	# If we're using GCC, then we can turn on -ansi -pedantic -Wall too.
	if test "$USE_MAINTAINER_MODE" = "yes"; then
	if test "$GCC" = yes; then
	MORE_CFLAGS="-ansi -pedantic -Wall $MORE_CFLAGS"
	fi
	fi
	AC_SUBST(MORE_CFLAGS)

	#
	# Cross-building
	#
	if test "$cross_compiling" = "yes"; then
	AC_MSG_CHECKING([cc for build])
	CC_FOR_BUILD="${CC_FOR_BUILD-PATH=/usr/bin:$PATH cc}"
	AC_MSG_RESULT($CC_FOR_BUILD)
	CCLD_FOR_BUILD="$CC_FOR_BUILD"
	else
	CC_FOR_BUILD="${CC_FOR_BUILD-$CC}"
	CCLD_FOR_BUILD="${CCLD_FOR_BUILD-$CC}"
	fi

	AC_ARG_VAR(CC_FOR_BUILD,[build system C compiler])
	AC_ARG_VAR(CCLD_FOR_BUILD,[build system C linker frontend])
	AC_SUBST(CC_FOR_BUILD)
	AC_SUBST(CCLD_FOR_BUILD)

	# libtool erroneously calls CC_FOR_BUILD HOST_CC;
	# --host is the platform that the package is compiled for.
	HOST_CC="$CC_FOR_BUILD"
	AC_SUBST(HOST_CC)

	# Detect if we have Python
	if test x$enable_python = xno; then
	have_python=no
	else
	AC_MSG_NOTICE([Checking for Python])
	have_python=no
	AM_PATH_PYTHON(2.4,[],[AC_MSG_WARN([Python not found])])

	if test -z "$PYTHON" \|\| test "$PYTHON" = : ; then
	have_python=no
	else
	have_python=yes
	fi

	if test x$have_python = xno ; then
	if test x$enable_python = xyes ; then
	AC_MSG_ERROR([Python explicitly requested, but a suitable Python version was not found])
	else
	AC_MSG_WARN([Could not find a suitable version of Python])
	fi
	fi
	fi

	# Detect if we can build Python bindings
	# (needs Python, Python headers, and Pyrex)
	if test x$enable_python_bindings = xno; then
	have_python_bindings=no
	else
	AC_MSG_NOTICE([Checking to see if we can build Python bindings])
	have_python_bindings=no
	if test x$have_python = xyes; then
	AC_MSG_CHECKING([for Pyrex >= 0.9.5.1])
	PYREX_CHECK_VERSION(0.9.5.1, [AC_MSG_RESULT(yes)
	have_pyrex=yes],
	[AC_MSG_RESULT(no)
	have_pyrex=no])

	AM_CHECK_PYTHON_HEADERS(have_python_headers=yes,have_python_headers=no)

	if test x$have_pyrex = xyes -a x$have_python_headers = xyes ; then
	have_python_bindings=yes
	fi
	fi

	if test x$have_python_bindings = xno ; then
	if test x$enable_python_bindings = xyes ; then
	AC_MSG_ERROR([Building Python bindings explicitly requested, but can't build Python bindings because either Pyrex, Python headers or a suitable Python version was not found])
	else
	AC_MSG_WARN([Couldn't find either Pyrex, the Python headers or a suitable version of Python, not building Python bindings])
	fi
	fi
	fi

	AM_CONDITIONAL(HAVE_PYTHON, test x$have_python = xyes)
	AM_CONDITIONAL(HAVE_PYTHON_BINDINGS, test x$have_python_bindings = xyes)

	AC_CONFIG_FILES([Makefile
	po/Makefile.in
	])
	AC_OUTPUT