Add jar/javac specification support.
Signed-off-by: Garrett Cooper <yanegomi@gmail.com>
diff --git a/configure.ac b/configure.ac
index 8c88673..eda326a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,6 +27,23 @@
AC_PROG_STRIP
AC_PROG_YACC
+# Code mostly borrowed from
+# http://mountain.nsu.ru/doc/autoconf-archive/html/ac_prog_javac.html
+AC_DEFUN([AC_PROG_JAVAC],[
+AC_REQUIRE([AC_EXEEXT])dnl
+if test "x$JAVAPREFIX" = x; then
+ test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, "gcj$EXEEXT -C" guavac$EXEEXT jikes$EXEEXT javac$EXEEXT)
+else
+ test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, "gcj$EXEEXT -C" guavac$EXEEXT jikes$EXEEXT javac$EXEEXT, $JAVAPREFIX)
+fi
+if test "x$JAVAC" = x; then
+ AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
+fi
+AC_PROVIDE([$0])dnl
+])
+AC_PROG_JAVAC
+
+
AC_PREFIX_DEFAULT(/opt/ltp)
AC_CHECK_HEADERS([ \