#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ(2.57)
AC_INIT(qucs,0.0.15,qucs-bugs@lists.sourceforge.net)
AC_CONFIG_SRCDIR([qucs/qucs.cpp])
AC_CONFIG_HEADERS([config.h])

AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE([no-define])
AM_MAINTAINER_MODE
AC_PREFIX_DEFAULT([/usr/local])
test "x$prefix" = xNONE && prefix="/usr/local"

dnl Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_RANLIB
AC_CHECK_TOOL(AR, ar, :)

dnl Check for debugging option.
AC_ARG_ENABLE([debug],
  AC_HELP_STRING([--enable-debug],
                 [include debug output @<:@default=no@:>@]),
  [case "$enableval" in
   yes) enable_debug="yes" ;;
   no)  enable_debug="no"  ;;
   *)   enable_debug="no"  ;;
   esac],
  [enable_debug="no"])
if test $USE_MAINTAINER_MODE = yes; then
  enable_debug="yes"
fi
if test "$enable_debug" = yes; then
  AC_DEFINE(DEBUG, 1, [Define if debug output should be supported.])
  QT_DEF=""
else
  AC_DEFINE(NDEBUG, 1, [Define if debug code should be suppressed.])
  QT_DEF="-DQT_NO_DEBUG -DQT_NO_CHECK"
  if test "x$GCC" = xyes; then
    CFLAGS="`echo $CFLAGS | sed -e 's/\-g //g'`"
    CXXFLAGS="`echo $CXXFLAGS | sed -e 's/\-g //g'`"
# disable stripping (debian bug #437876)
#    case $host_os in
#      *darwin*) LDFLAGS="$LDFLAGS" ;;
#      *)        LDFLAGS="$LDFLAGS -s" ;;
#    esac
  fi
fi
unset enable_debug

dnl Check for Win32.
case $host_os in
  *mingw*) WIN32=yes ;;
  *)       WIN32=no  ;;
esac
AM_CONDITIONAL(COND_WIN32, test x$WIN32 = xyes)

dnl Check for MacOSX.
case $host_os in
  *darwin*) MACOSX=yes ;;
  *)        MACOSX=no  ;;
esac
AM_CONDITIONAL(COND_MACOSX, test x$MACOSX = xyes)

dnl Yet another compiler check.
if test "x$GCC" = xyes; then
  CFLAGS="$CFLAGS -pipe"
  CXXFLAGS="$CXXFLAGS -pipe -fno-exceptions -fno-check-new"
  if test x$WIN32 = xyes; then
    CXXFLAGS="$CXXFLAGS -fno-rtti"
  fi
  if test $USE_MAINTAINER_MODE = yes; then
    CFLAGS="$CFLAGS -W -Wall -Wmissing-prototypes"
    CXXFLAGS="$CXXFLAGS -W -Wall"
  fi
fi

dnl Check for new platforms.
osversion="`grep \"$host\" $srcdir/PLATFORMS 2>/dev/null`"
if test "x$osversion" = "x"; then
  AC_MSG_RESULT([
  The $PACKAGE package has never been compiled or run on this platform.  
  Please send an email to <qucs-devel@lists.sourceforge.net> including your
  compiler and Qt version and whether it worked correctly or not.  The
  '$host' line will then be added to the PLATFORMS file included
  in this package.
])
fi
unset osversion

dnl Release specific. Uncomment these as required.
# AC_CONFIG_SUBDIRS(qucs-core)
# AC_CONFIG_SUBDIRS(freehdl)
# RELEASEDIRS="qucs-core"
# RELEASEDIRS="$RELEASEDIRS freehdl"
AC_SUBST(RELEASEDIRS)

dnl Check for language support.
AC_PATH_PROGS(LRELEASE, lrelease-qt3 lrelease, :, [$QTDIR/bin:$PATH])
AC_PATH_PROGS(LUPDATE, lupdate-qt3 lupdate, :, [$QTDIR/bin:$PATH])

dnl Check for MOC/UIC support.
AC_PATH_PROGS(MOC, moc-qt3 moc, :, [$QTDIR/bin:$PATH])
AC_PATH_PROGS(UIC, uic-qt3 uic, :, [$QTDIR/bin:$PATH])
if test "$MOC" = ":"; then
  AC_MSG_WARN([
  The $PACKAGE package needs the 'Qt Meta Object Compiler' to compile properly.
  Though Qt itself may be properly installed including headers and libraries
  the 'moc' program is missing.  Possibly you need to install the full 
  development package of Qt.])
fi

dnl Check for X11
if test x$WIN32 != xyes; then
  AC_PATH_XTRA
  X11_INCLUDES="$X_CFLAGS"
  X11_LDFLAGS=""
  X11_LIBS="$X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
  AC_SUBST(X11_INCLUDES)
  AC_SUBST(X11_LDFLAGS)
  AC_SUBST(X11_LIBS)
fi

dnl Check include path to Qt.
QT_INCLUDES=""
QT_VER=2
AC_MSG_CHECKING([for Qt headers])
paths="$QTDIR/include /usr/local/qt/include /usr/include/qt /usr/include/qt3 \
  /usr/include /usr/X11R6/include/X11/qt /usr/X11R6/include/X11/qt \
  /usr/X11R6/include/qt /usr/X11R6/include /sw/include/qt \
  /usr/X11R6/include/qt2"
for path in $paths; do
  if test -f "$path/qapplication.h"; then
    QT_INCLUDES=$path
    if test -f "$path/qmemarray.h"; then
      QT_VER=3
    fi
    break
  fi
done
if test "x$QT_INCLUDES" != "x"; then
  AC_MSG_RESULT([found in $QT_INCLUDES])
  QT_INCLUDES="-I$QT_INCLUDES"
else
  AC_MSG_ERROR([not found])
fi
AC_SUBST(QT_INCLUDES)

dnl Check for multi-threaded option.
AC_ARG_ENABLE([mt],
  AC_HELP_STRING([--disable-mt],
                 [link to non-threaded Qt (deprecated)]),
  enable_mt="$enableval",
  [if test $QT_VER = 3; then
     enable_mt="yes"
   else
     enable_mt="no"
   fi])
if test "$enable_mt" = yes; then
  QT_LDF=""
  QT_LIB="-lqt-mt"
  QT_INC="$QT_DEF -DQT_THREAD_SUPPORT -D_REENTRANT"
  [case $host_os in
    *freebsd4*) QT_LIB="$QT_LIB -pthread" ;;
    *freebsd[567]*) QT_LIB="$QT_LIB -lpthread" ;;
    *mingw*) QT_INC="$QT_INC -mthreads"; QT_LDF="$QT_LDF -mthreads" ;;
  esac]
  QT_MTS="multi-threaded"
else
  QT_LDF=""
  QT_LIB="-lqt"
  QT_INC="$QT_DEF"
  QT_MTS="non-threaded"
fi
case $host_os in
  *mingw*)
	QT_LIB="$QT_LIB -lqtmain"
	QT_INC="$QT_INC -DQT_DLL -DUNICODE"
	QT_LDF="$QT_LDF -mwindows"
	;;
esac
unset enable_mt

dnl Check library path to Qt.
QT_LDFLAGS=""
QT_LIBS=""
AC_MSG_RESULT([checking for Qt... $QT_VER ($QT_MTS)])
AC_MSG_CHECKING([for Qt library])
paths="$QTDIR/lib $QTDIR/lib64 /usr/local/qt/lib /usr/lib/qt /usr/lib \
  /usr/X11R6/lib/X11/qt /usr/X11R6/lib/X11/qt /usr/X11R6/lib/qt \
  /usr/X11R6/lib /sw/lib /usr/lib64/qt /usr/X11R6/lib/qt2"
AC_LANG(C++)
for path in $paths; do
  save_LIBS="$LIBS"
  save_LDFLAGS="$LDFLAGS"
  save_CXXFLAGS="$CXXFLAGS"
  LIBS="$LIBS $X11_LIBS $QT_LIB"
  LDFLAGS="$LDFLAGS $X11_LDFLAGS -L$path $QT_LDF"
  CXXFLAGS="$CXXFLAGS $X11_INCLUDES $QT_INCLUDES $QT_INC"
  AC_LINK_IFELSE(
    [#include <qapplication.h>
     int main (int argc, char ** argv) {
     QApplication a (argc, argv); a.exec (); return 0; }],
    [QT_LDFLAGS="$path";
     QT_INCLUDES="$QT_INCLUDES $QT_INC";
     break;])
  LIBS="$save_LIBS"
  LDFLAGS="$save_LDFLAGS"
  CXXFLAGS="$save_CXXFLAGS"
done
LIBS="$save_LIBS"
LDFLAGS="$save_LDFLAGS"
CXXFLAGS="$save_CXXFLAGS"
if test "x$QT_LDFLAGS" != "x"; then
  AC_MSG_RESULT([found in $QT_LDFLAGS])
  QT_LDFLAGS="-L$QT_LDFLAGS $QT_LDF"
  QT_LIBS="$QT_LIB"
else
  AC_MSG_ERROR([not found])
fi
AC_SUBST(QT_LDFLAGS)
AC_SUBST(QT_LIBS)
AC_LANG(C)

dnl Check for additional header files.
AC_CHECK_HEADERS([ieeefp.h])

dnl Check for path transformation.
case $build_os in
mingw* | cygwin*)
  PATHXFORM="cygpath -w"
  ;;
*)
  PATHXFORM="echo"
  ;;
esac
AC_SUBST(PATHXFORM)

dnl Create path info.
BITMAP_PATH="$prefix/share/qucs/bitmaps/"
AC_DEFINE_UNQUOTED([BITMAPDIR], ["$BITMAP_PATH"],
  [Where the data files go.])
unset BITMAP_PATH
BIN_PATH="$prefix/bin/"
AC_DEFINE_UNQUOTED([BINARYDIR], ["$BIN_PATH"],
  [Where the binary files go.])
unset BIN_PATH
LANG_PATH="$prefix/share/qucs/lang/"
AC_DEFINE_UNQUOTED([LANGUAGEDIR], ["$LANG_PATH"],
  [Where the language files go.])
unset LANG_PATH
LIBRARY_PATH="$prefix/share/qucs/library/"
AC_DEFINE_UNQUOTED([LIBRARYDIR], ["$LIBRARY_PATH"],
  [Where the component library files go.])
unset LIBRARY_PATH
DOC_PATH="$prefix/share/qucs/docs/"
AC_DEFINE_UNQUOTED([DOCDIR], ["$DOC_PATH"],
  [Where the documentation files go.])
unset DOC_PATH

dnl Definitions at top of <config.h>.
AH_TOP([
/* __BEGIN_DECLS should be used at the beginning of your declarations,
   so that C++ compilers don't mangle their names.  Use __END_DECLS at
   the end of C declarations. */
#undef __BEGIN_DECLS
#undef __END_DECLS
#ifdef __cplusplus
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
#else
# define __BEGIN_DECLS
# define __END_DECLS
#endif

#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1
#endif
])

dnl Add here all your Makefiles. These are created by configure.
AC_CONFIG_FILES([Makefile 
		 contrib/Makefile
		 qucs-edit/Makefile
		 qucs-help/Makefile
                 qucs-help/docs/Makefile
                 qucs-help/docs/en/Makefile
		 qucs-help/docs/de/Makefile
                 qucs-help/docs/es/Makefile
                 qucs-help/docs/fr/Makefile
                 qucs-help/docs/ru/Makefile
                 qucs-help/docs/uk/Makefile
                 qucs-help/docs/cs/Makefile
		 qucs-filter/Makefile
		 qucs-transcalc/Makefile
		 qucs-transcalc/bitmaps/Makefile
		 qucs-transcalc/examples/Makefile
		 qucs-lib/Makefile
		 qucs-lib/library/Makefile
		 qucs-attenuator/Makefile
		 qucs-attenuator/bitmaps/Makefile
		 qucs/Makefile
		 qucs/bitmaps/Makefile
		 qucs/components/Makefile
		 qucs/diagrams/Makefile
		 qucs/paintings/Makefile
		 qucs/dialogs/Makefile])
AC_OUTPUT

dnl Print results.
AC_MSG_RESULT([])
AC_MSG_RESULT([ $PACKAGE version $VERSION configured successfully.])
AC_MSG_RESULT([])