Fix arts detection

Add sndio detection

Signed-off-by: François Andriot <francois.andriot@free.fr>

configure.in.in

@@ -547,10 +547,24 @@ AC_PATH_PROG(ARTSCCONFIG, artsc-config, no, $artsc_config_test_path)
 
 if test "x$build_arts" = "xyes" && test "x$ARTSCCONFIG" != "xno" ; then
 	LIB_ARTS="-lartskde"
-	ARTS_PREFIX=[`$ARTSCCONFIG --arts-prefix`]
-	ARTS_CFLAGS="-I$ARTS_PREFIX/include/arts"
+	ARTS_CFLAGS=[`$PKG_CONFIG --cflags arts`]
 	ARTS_LIBS=[`$PKG_CONFIG --libs-only-l arts`]
 	AC_DEFINE(HAVE_ARTS, 1, [have arts support in juk])
+	
+	AC_TRY_COMPILE([
+		#include <sndio.h>
+	],[
+		#ifdef SNDIO_H
+		  /* We have sndio library */
+		#else
+		  # Error no sndio library
+		#endif
+	],
+	have_sndio=yes,
+	have_sndio=no);
+	if test "x$have_sndio" = "xyes" ; then
+		ARTS_LIBS="$ARTS_LIBS -lsndio"
+	fi
 else
 	build_arts="no"
 	LIB_ARTS=""