Do not check for JDK headers if Java bindings are disabled.

This removes an unnecessary build dependency on JDK and fixes
build troubles on systems where javac is present but JDK is not
installed and Java bindings are disabled by ./configure --disable-java.

diff --git a/configure.ac b/configure.ac
index d28306149760eabaddcd394f393d3cd2bab5056b..396e3ec21345c10b6bb424e7ea8492332e397b75 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -434,7 +434,7 @@ CXXFLAGS="$CXXFLAGS -Iinclude/libsigrok -I${srcdir}/include -Ibindings/cxx -Ibin
 
 # Find Java compiler and JNI includes for Java bindings.
 AC_CHECK_PROG([HAVE_JAVAC], [javac], [yes], [no])
-if test "x$HAVE_JAVAC" = "xyes"; then
+if test "x$HAVE_JAVAC" = "xyes" && test "x$BINDINGS_JAVA" = "xyes"; then
        AX_PROG_JAVAC
        if test "x$JNI_INCLUDE_DIRS" = "xauto"; then
                if test "x$cross_compiling" = "xyes"; then