AC_DEFUN([AC_PATH_MOZILLA],
[

AC_MSG_CHECKING([for Mozilla development headers])

mozilla_incldirs="/usr/include /usr/include/mozilla /usr/local/include /usr/X11R6/include/mozilla /opt/include /opt/mozilla/include"
AC_FIND_FILE(gtkmozembed.h, $mozilla_incldirs, mozilla_incdir)

if test "$mozilla_incdir" = NO; then
  AC_FIND_FILE(gtkembedmoz/gtkmozembed.h, $mozilla_incldirs, mozilla_incdir)

  if test "$mozilla_incdir" != NO; then
    mozilla_incdir="$mozilla_incdir/gtkembedmoz"
  fi
fi

if test "$mozilla_incdir" = NO; then
  AC_MSG_RESULT(no);
else
  have_mozilla=yes;
  MOZILLA_INCLUDES="-I$mozilla_incdir"
  AC_SUBST(MOZILLA_INCLUDES)
  AC_MSG_RESULT([found in $mozilla_incdir]);
fi

AM_CONDITIONAL(include_MOZILLA_support, [test "$mozilla_incdir" != NO])

])

 
AC_PATH_MOZILLA