dnl Rename this file configure.in.in to have a check for KOffice in during configure

dnl
dnl Check for koffice. Argument is the minimum required version, in the form a.b.c.
dnl This check *aborts* if koffice wasn't found or was too old.
dnl If you only have an optional koffice requirement you'll have to change the test.
dnl
AC_DEFUN(AC_PATH_KOFFICE,
[
  dnl TODO: use AC_CACHE_VAL

  if test -z "$1"; then
    koffice_minver_maj=1
    koffice_minver_min=2
    koffice_minver_pat=94
  else
    koffice_minver_maj=`echo "$1" | sed -e "s/^\(.*\)\..*\..*$/\1/"`
    koffice_minver_min=`echo "$1" | sed -e "s/^.*\.\(.*\)\..*$/\1/"`
    koffice_minver_pat=`echo "$1" | sed -e "s/^.*\..*\.\(.*\)$/\1/"`
  fi

  AC_REQUIRE([AC_PATH_TQT])

  AC_MSG_CHECKING([for KOffice])

  koffice_incdir=$kde_includes
  koffice_libdir=$kde_libraries

  AC_ARG_WITH(koffice-includes,
              [  --with-koffice-includes=DIR   where include files for KOffice are installed ],
              [  koffice_incdir="$withval"] )
  AC_ARG_WITH(koffice-libs,
              [  --with-koffice-libs=DIR   where libs for KOffice are installed ],
              [  koffice_libdir="$withval"] )

  if ! test -f "$koffice_incdir/kofficeversion.h"; then
    AC_MSG_ERROR([Cannot find KOffice headers in $ac_koffice_includes. Please check your installation, or use --with-koffice-includes.])
  fi

  AC_LANG_SAVE
  AC_LANG_CPLUSPLUS

  ac_cxxflags_safe="$CXXFLAGS"
  ac_ldflags_safe="$LDFLAGS"
  ac_libs_safe="$LIBS"
  CXXFLAGS="$CXXFLAGS -I$koffice_incdir $KDE_INCLUDES $all_includes"
  LDFLAGS="$LDFLAGS $KDE_LDFLAGS $QT_LDFLAGS $all_libraries $USER_LDFLAGS $KDE_MT_LDFLAGS"
  LIBS="$LIBS -lkofficeui $LIBTQT"

  AC_TRY_COMPILE(
 [
#include "confdefs.h"
#include <kofficeversion.h>
#if ! KOFFICE_IS_VERSION($koffice_minver_maj,$koffice_minver_min,$koffice_minver_pat)
#error 1
#endif
 ],
 [],
 [ have_koffice="yes" ],
 [
  have_koffice="no"; dnl in case someone wants to turn the error below into a warning
  AC_MSG_ERROR("Your KOffice version is too old. Please upgrade to at least $koffice_minver_maj.$koffice_minver_min.$koffice_minver_pat")
 ])

 dnl Ok it's the right version. Now, does it link ok?

  cat > conftest.$ac_ext <<EOF
#include <koApplication.h>
int main( int, char ** )
{
    KoApplication app;
    return 0;
}
EOF

  if AC_TRY_EVAL(ac_link) && test -s conftest; then
    rm -f conftest*
  else
    have_koffice="no"
    rm -f conftest*
    AC_MSG_ERROR([Cannot link small KOffice application. For more details look at config.log])
  fi

  CXXFLAGS="$ac_cxxflags_safe"
  LDFLAGS="$ac_ldflags_safe"
  LIBS="$ac_libs_safe"

  AC_LANG_RESTORE

  dnl Success, prepare the variables for the Makefile.am

  KOFFICE_INCLUDES=""
  if test "$koffice_incdir" != "/usr/include"; then
    KOFFICE_INCLUDES="-I$koffice_incdir"
  fi
  KOFFICE_LDFLAGS=""
  if test "$koffice_libdir" != "/usr/lib"; then
    KOFFICE_LDFLAGS="-L$koffice_libdir"
  fi
  AC_SUBST(KOFFICE_LDFLAGS)

  LIB_KOFFICE="-lkofficeui"
  AC_SUBST(LIB_KOFFICE)

  AC_MSG_RESULT([libraries $koffice_libdir, headers $koffice_incdir])
])

AC_PATH_KOFFICE