configure.in

dnl Process this file with autoconf to produce a configure script.
AC_INIT(lib/mainprint.cpp)
AM_CONFIG_HEADER(config.h)
VERSION="0.9.3"
AM_INIT_AUTOMAKE(libofa, "$VERSION")

AM_MAINTAINER_MODE

dnl Canonicalize host.
AC_CANONICAL_HOST
case "${host_cpu}-${host_os}" in
  *-beos*)    os=beos; LIBS='-lbe -lroot' ;;
  *-cygwin*)  os=cygwin ;;
  *-freebsd*) os=freebsd ;;
  *-darwin*)  os=darwin ;;
  *-linux*)   os=linux ;;
  *-netbsd*)  os=netbsd ;;
  *-openbsd*) os=openbsd ;;
  *-os2_emx*) os=os2 ;;
  *-solaris*) os=solaris; LIBS='-lsocket -lnsl' ;;
  *-qnx*)     os=qnx; LIBS='-lsocket' ;;
  *)          AC_MSG_RESULT([WARNING: unknown system]) ;;
esac
AM_CONDITIONAL(DARWIN, test x$os = xdarwin)
AM_CONDITIONAL(FREEBSD, test x$os = xfreebsd)

dnl Checks for programs.
AC_PREREQ(2.52)
AC_PROG_AWK
AC_PROG_CC
AC_LIBLTDL_CONVENIENCE
AM_PROG_LIBTOOL
AC_SUBST(LIBTOOL_DEPS)  
AC_PROG_CXX
AC_PROG_INSTALL
PREFIX="${prefix}"
AC_SUBST(PREFIX)
AC_C_BIGENDIAN
AC_CHECK_SIZEOF(long)

if test "$GCC" = yes; then
  dnlCFLAGS="$CFLAGS -Wall -O2"
  CFLAGS="$CFLAGS -Wall -g"
fi
if test "$GXX" = yes; then
  CXXFLAGS="$CXXFLAGS -Wall -g"
fi

dnl Checks for libraries.

dnl libexpat check
AC_CHECK_LIB(expat, XML_ExpatVersion,
	[EXPAT_LIBS="-lexpat"], [
	echo "*"
	echo "*  expat is needed to build this library. It is either not"
	echo "*  installed on your system or it is too old."
	echo "*  Please download it from http://expat.sourceforge.net."
	echo "*"
	AC_MSG_ERROR("Cannot build. Stop.")], -lexpat)
AC_SUBST(EXPAT_LIBS)

dnl libcurl check
AC_CHECK_LIB(curl, curl_global_init,
	[CURL_LIBS="-lcurl"], [
	echo "*"
	echo "*  libcurl is needed to build this library. It is either not"
	echo "*  installed on your system or it is too old."
	echo "*  Please download it http://curl.haxx.se/"
	echo "*"
	AC_MSG_ERROR("Cannot build. Stop.")], -lcurl)
AC_SUBST(CURL_LIBS)

dnl Support libfftw2 and vSDP and MKL (intel)
dnl  FFTW for FFTW v2. FFTW3 for FFTW v3. VDSP for vDSP. MKL for MKL
dnl TODO: PREANSI for win32

if test x$os = xdarwin; then
    AC_MSG_NOTICE([Using vDSP on OS X])
    LIBS="$LIBS -XCClinker -framework -XCClinker Accelerate"
    FFT_WRAPPER="fftlibvdsp_op.cpp"
    AM_CONDITIONAL(FFTW3, false)
    AM_CONDITIONAL(VDSP, true)
    AC_DEFINE_UNQUOTED(VDSP, 1, Use vDSP)
else
    AC_MSG_NOTICE([Using libfftw3])
    AC_CHECK_LIB(fftw3, fftw_malloc,
            [
             LIBS="$LIBS -lfftw3"
             FFT_WRAPPER="fftlibw3_op.cpp"
             AM_CONDITIONAL(FFTW3, true)
             AM_CONDITIONAL(VDSP, false)
             AC_DEFINE_UNQUOTED(FFTW3, 1, Use libfftw3)
            ], [
            echo "*"
            echo "*  libfft3 is needed to build this library."
            echo "*"
            AC_MSG_ERROR("Cannot build. Stop.")])
fi

AC_SUBST(FFT_WRAPPER)

dnl Checks for header files.

dnl Checks for typedefs, structures, and compiler characteristics.
AC_SUBST(CFLAGS)
AC_OUTPUT([
Makefile 
include/Makefile 
include/ofa1/Makefile 
lib/Makefile 
lib/JAMA/Makefile 
lib/AFLIB/Makefile 
examples/Makefile 
libofa.pc], 
echo timestamp > stamp-h)