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dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_check_class.html
dnl
AC_DEFUN([AC_CHECK_CLASS],[
AC_REQUIRE([AC_PROG_JAVA])
ac_var_name=`echo $1 | sed 's/\./_/g'`
dnl Normaly I'd use a AC_CACHE_CHECK here but since the variable name is
dnl dynamic I need an extra level of extraction
AC_MSG_CHECKING([for $1 class])
AC_CACHE_VAL(ac_cv_class_$ac_var_name, [
if test x$ac_cv_prog_uudecode_base64 = xyes; then
dnl /**
dnl * Test.java: used to test dynamicaly if a class exists.
dnl */
dnl public class Test
dnl {
dnl
dnl public static void
dnl main( String[] argv )
dnl {
dnl Class lib;
dnl if (argv.length < 1)
dnl {
dnl System.err.println ("Missing argument");
dnl System.exit (77);
dnl }
dnl try
dnl {
dnl lib = Class.forName (argv[0]);
dnl }
dnl catch (ClassNotFoundException e)
dnl {
dnl System.exit (1);
dnl }
dnl lib = null;
dnl System.exit (0);
dnl }
dnl
dnl }
cat << \EOF > Test.uue
begin-base64 644 Test.class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====
EOF
if uudecode$EXEEXT Test.uue; then
:
else
echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" >&AC_FD_CC
echo "configure: failed file was:" >&AC_FD_CC
cat Test.uue >&AC_FD_CC
ac_cv_prog_uudecode_base64=no
fi
rm -f Test.uue
if AC_TRY_COMMAND(CLASSPATH=.:$CLASSPATH $JAVA $JAVAFLAGS Test $1) >/dev/null 2>&1; then
eval "ac_cv_class_$ac_var_name=yes"
else
eval "ac_cv_class_$ac_var_name=no"
fi
rm -f Test.class
else
AC_TRY_COMPILE_JAVA([$1], , [eval "ac_cv_class_$ac_var_name=yes"],
[eval "ac_cv_class_$ac_var_name=no"])
fi
eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
eval "HAVE_$ac_var_name=$`echo ac_cv_class_$ac_var_val`"
HAVE_LAST_CLASS=$ac_var_val
if test x$ac_var_val = xyes; then
ifelse([$2], , :, [$2])
else
ifelse([$3], , :, [$3])
fi
])
dnl for some reason the above statment didn't fall though here?
dnl do scripts have variable scoping?
eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
AC_MSG_RESULT($ac_var_val)
])
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