-# Initialize libtool
-# AM_PROG_LIBTOOL
-
-# Initialize maintainer mode
-# AM_MAINTAINER_MODE
-
-# This is needed for AC_TRY_COMPILE later
-# AC_ISC_POSIX
-
-# Check to see if this `configure' is being run in the `Cygwin32' environment
-AC_EGREP_CPP(yes,
-[#ifdef __MINGW32__
- yes
- #endif
-],is_mingw=yes, is_mingw=no)
-
-echo "IS_MINGW = $is_mingw"
-AM_CONDITIONAL(IS_MINGW, test "x$is_mingw" = "xyes")
-
-AC_EGREP_CPP(yes,
-[#ifdef __CYGWIN__
- yes
- #endif
-],is_cygwin=yes, is_cygwin=no)
-
-echo "IS_CYGWIN = $is_cygwin"
-AM_CONDITIONAL(IS_CYGWIN, test "x$is_cygwin" = "xyes")
-
-# Determine version of automake ... important becuase of
-# incompatibilities between versions
-AUTO_MAKE_VERSION=`automake --version | head -1 | awk '{print $4}' | sed -e 's/\.\([0-9]*\).*/\1/'`
-if test $AUTO_MAKE_VERSION -lt 15; then
- echo ""
- echo "You need to upgrade to automake version 1.5 or greater."
- echo "Most distributions have packages available to install or you can"
- echo "find the source for the most recent version at"
- echo "ftp://ftp.gnu.org/gnu/automake"
- exit 1
-fi
+# specify the simgear location
+AC_ARG_WITH(simgear, [ --with-simgear=PREFIX Specify the prefix path to simgear])