dnl Copyright 2001,2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
dnl 
dnl This file is part of GNU Radio
dnl 
dnl GNU Radio is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3, or (at your option)
dnl any later version.
dnl 
dnl GNU Radio is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dnl GNU General Public License for more details.
dnl 
dnl You should have received a copy of the GNU General Public License
dnl along with GNU Radio; see the file COPYING.  If not, write to
dnl the Free Software Foundation, Inc., 51 Franklin Street,
dnl Boston, MA 02110-1301, USA.

AC_INIT
AC_PREREQ(2.57)
AM_CONFIG_HEADER(config.h)
AC_CONFIG_SRCDIR([gnuradio-core/src/lib/runtime/gr_vmcircbuf.cc])

AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
if test x$cross_compiling != xno; then
  AC_MSG_NOTICE([Configuring GNU Radio for cross compilation])
else
  AC_MSG_NOTICE([Configuring GNU Radio for native compilation])
fi

AM_INIT_AUTOMAKE(gnuradio,3.1svn)


DEFINES=""
AC_SUBST(DEFINES)


dnl Remember if the user explicity set CXXFLAGS
if test -n "${CXXFLAGS}"; then
  user_set_cxxflags=yes
fi

GR_X86_64		dnl check for lib64 suffix
LF_CONFIGURE_CC
LF_CONFIGURE_CXX

dnl The three macros above are known to override CXXFLAGS if the user
dnl didn't specify them.  Though I'm sure somebody thought this was
dnl a good idea, it makes it hard to use other than -g -O2 when compiling
dnl selected files.  Thus we "undo" the damage here...
dnl 
dnl If the user specified CXXFLAGS, we use them.  Otherwise when compiling
dnl the output of swig use use -O1 if we're using g++.
dnl See Makefile.common for the rest of the magic.
if test "$user_set_cxxflags" != yes; then
  autoconf_default_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS=""
  if test "$GXX" = yes; then
    case "$host_cpu" in
    	powerpc*)
	   # "-O1" is broken on the PPC for some reason
	   # (at least as of g++ 4.1.1)
	   swig_CXXFLAGS="-g1 -O2"
	;;
    	*) 
	swig_CXXFLAGS="-g -O1"
	;;
    esac
  fi
fi
AC_SUBST(autoconf_default_CXXFLAGS)
AC_SUBST(swig_CXXFLAGS)


LF_SET_WARNINGS
GR_SET_GPROF
GR_SET_PROF
AM_PROG_AS
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PATH_PROG([RM_PROG], [rm])

AC_LIBTOOL_WIN32_DLL
dnl AC_DISABLE_SHARED	dnl don't build shared libraries
AC_ENABLE_SHARED	dnl do build shared libraries
AC_DISABLE_STATIC	dnl don't build static libraries
AC_PROG_LIBTOOL
GR_FORTRAN

GR_NO_UNDEFINED		dnl do we need the -no-undefined linker flag
GR_SCRIPTING

AC_CHECK_PROG([XMLTO],[xmlto],[yes],[])
AM_CONDITIONAL([HAS_XMLTO], [test x$XMLTO = xyes])

dnl Checks for libraries.
AC_CHECK_LIB(socket,socket)

dnl check for threads (mandatory)
GR_OMNITHREAD
#AC_SUBST(PTHREAD_CFLAGS)
CFLAGS="${CFLAGS} $PTHREAD_CFLAGS"
CXXFLAGS="${CXXFLAGS} $PTHREAD_CFLAGS"

if test x$CXX_FOR_BUILD = x
then
  if test x$cross_compiling = xno; then
    CXX_FOR_BUILD=${CXX}
  else
    CXX_FOR_BUILD=g++
  fi
fi

AC_SUBST(CXX_FOR_BUILD)

dnl Check for SysV shm (mandatory)
dnl FIXME this is no longer mandatory.  Check the macro.
GR_SYSV_SHM

dnl Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(fcntl.h limits.h strings.h time.h sys/ioctl.h sys/time.h unistd.h)
AC_CHECK_HEADERS(linux/ppdev.h sys/mman.h sys/select.h sys/types.h)
AC_CHECK_HEADERS(sys/resource.h stdint.h sched.h signal.h sys/syscall.h)
AC_CHECK_HEADERS(windows.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_C_BIGENDIAN
AC_STRUCT_TM

dnl Checks for library functions.
AC_FUNC_ALLOCA
AC_FUNC_SETVBUF_REVERSED
AC_FUNC_VPRINTF
AC_CHECK_FUNCS([mmap select socket strcspn strerror strspn getpagesize sysconf])
AC_CHECK_FUNCS([snprintf gettimeofday nanosleep sched_setscheduler])
AC_CHECK_FUNCS([modf sqrt sigaction sigprocmask pthread_sigmask])
AC_CHECK_FUNCS([sched_setaffinity])

AC_CHECK_LIB(m, sincos, [AC_DEFINE([HAVE_SINCOS],[1],[Define to 1 if your system has `sincos'.])])
AC_CHECK_LIB(m, sincosf,[AC_DEFINE([HAVE_SINCOSF],[1],[Define to 1 if your system has `sincosf'.])])
AC_CHECK_LIB(m, sinf, [AC_DEFINE([HAVE_SINF],[1],[Define to 1 if your system has `sinf'.])])
AC_CHECK_LIB(m, cosf, [AC_DEFINE([HAVE_COSF],[1],[Define to 1 if your system has `cosf'.])])
AC_CHECK_LIB(m, trunc, [AC_DEFINE([HAVE_TRUNC],[1],[Define to 1 if your system has `trunc'.])])
AC_CHECK_LIB(m, exp10, [AC_DEFINE([HAVE_EXP10],[1],[Define to 1 if your system has 'exp10'.])])
#AC_FUNC_MKTIME

AH_BOTTOM([
#ifndef HAVE_TRUNC
#include <math.h>
inline static double trunc(double x)
{
  return x >= 0 ? floor(x) : ceil(x);
}
#endif

#ifndef HAVE_EXP10
#include <math.h>
inline static double exp10(double x)
{
  return pow(10.0, x);
}
#endif

#ifdef HAVE_WINDOWS_H
#define NOMINMAX
#endif
])

GR_CHECK_SHM_OPEN
GR_LIBGNURADIO_CORE_EXTRA_LDFLAGS
GR_CHECK_CREATEFILEMAPPING

dnl Check for Mingw support
GR_PWIN32

dnl Do we have "dot", part of the graphviz package from AT&T?
dnl Doxgen will use it to draw pretty diagrams ;-)
AC_CHECK_PROG(HAVE_DOT, [dot],[YES],[NO])

PKG_CHECK_MODULES(FFTW3F, fftw3f >= 3.0)
AC_SUBST(FFTW3F_LIBS)

dnl conditional build stuff
GR_CHECK_DOXYGEN
GR_SET_MD_CPU

dnl Define where to look for cppunit includes and libs
dnl sets CPPUNIT_CFLAGS and CPPUNIT_LIBS
dnl Try using pkg-config first, then fall back to cppunit-config.
PKG_CHECK_EXISTS(cppunit,
  [PKG_CHECK_MODULES(CPPUNIT, cppunit >= 1.9.14)],
  [AM_PATH_CPPUNIT([1.9.14],[],
		[AC_MSG_ERROR([GNU Radio requires cppunit.  Stop])])])

CPPUNIT_INCLUDES=$CPPUNIT_CFLAGS
AC_SUBST(CPPUNIT_INCLUDES)

dnl Define where to find boost includes
dnl defines BOOST_CFLAGS
GR_REQUIRE_BOOST_INCLUDES

# If this is being done from a subversion tree, create variables
GR_SUBVERSION

dnl Component specific configuration
dnl The order of the GR_ macros determines the order of compilation
AC_ARG_ENABLE(
    [all-components],
    [  --enable-all-components Build all components or stop on failed dependencies]
)

build_dirs="config"
GRC_OMNITHREAD			dnl must come before gnuradio-core and mblock
GRC_GNURADIO_CORE
GRC_PMT
GRC_MBLOCK			dnl this must come after GRC_PMT
GRC_USRP
GRC_GR_USRP			dnl this must come after GRC_USRP
GRC_GR_AUDIO_ALSA
GRC_GR_AUDIO_JACK
GRC_GR_AUDIO_OSS
GRC_GR_AUDIO_OSX
GRC_GR_AUDIO_PORTAUDIO
GRC_GR_AUDIO_WINDOWS
GRC_GR_ATSC
GRC_GR_COMEDI
GRC_GR_CVSD_VOCODER
GRC_GR_GSM_FR_VOCODER
GRC_GR_PAGER
GRC_GR_RADAR_MONO
GRC_GR_RADIO_ASTRONOMY
GRC_GR_TRELLIS
GRC_GR_VIDEO_SDL
GRC_GR_QTGUI
GRC_GR_WXGUI
GRC_GR_SOUNDER			dnl this must come after GRC_USRP
GRC_GR_UTILS
GRC_GNURADIO_EXAMPLES		dnl must come last

# Each component is now either to be built, was skipped, or failed dependencies
AC_SUBST([build_dirs], [$build_dirs])
AC_SUBST([skipped_dirs], [$skipped_dirs])
 
AC_CONFIG_FILES([\
    Makefile \
    run_tests.sh
    config/Makefile
])

dnl run_tests.sh is created from run_tests.in.sh.  Make it executable.
AC_CONFIG_COMMANDS([run_tests_build], [chmod +x run_tests.sh])

AC_OUTPUT

echo
echo "*********************************************************************"
echo The following GNU Radio components have been successfully configured:
echo 
for dir in $build_dirs
do
    echo $dir
done
echo
echo You my now run the 'make' command to build these components.
echo
if test "$skipped_dirs" != ""; then
    echo "*********************************************************************"
    echo The following components were skipped either because you asked not
    echo to build them or they didn\'t pass configuration checks:
    echo
    for dir in $skipped_dirs
    do
        echo $dir
    done
    echo
    echo These components will not be built.
    echo
fi