--- a/src/js/jsNone.cxx
+++ b/src/js/jsNone.cxx
@@ -22,7 +22,7 @@
 
 #include "js.h"
 
-#if defined(UL_IRIX) || defined(UL_SOLARIS) || defined (UL_HPUX)
+#if defined(UL_IRIX) || defined(UL_SOLARIS) || defined (UL_HPUX) || defined(UL_GNU)
 
 struct os_specific_s ;
 
--- a/src/util/ul.h
+++ b/src/util/ul.h
@@ -92,6 +92,10 @@
 
 #define UL_HPUX      1
 
+#elif defined(__GNU__)
+
+#define UL_GNU       1
+
 #elif (defined(__unix__) || defined(unix)) && !defined(USG)
 
 #define UL_BSD       1
@@ -144,6 +148,12 @@
 #define  UL_GLX     1
 #endif
 
+#ifdef UL_GNU
+#include <unistd.h>
+#include <dlfcn.h>
+#define  UL_GLX     1
+#endif
+
 #include <assert.h>
 #include <limits.h>
 #include <math.h>
--- a/src/sl/slPortability.h
+++ b/src/sl/slPortability.h
@@ -51,7 +51,7 @@
 #include <limits.h>
 #include <math.h>
 
-#if (defined(UL_LINUX) || defined(UL_BSD)) && !defined(__NetBSD__)
+#if (defined(UL_LINUX) || defined(UL_BSD) || defined(UL_GNU)) && !defined(__NetBSD__)
 #define SL_USING_OSS_AUDIO 1
 #endif
 
@@ -59,7 +59,7 @@
 #  if defined(UL_LINUX)
 #    include <linux/soundcard.h>
 #    include <sys/ioctl.h>
-#  elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#  elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(UL_GNU)
 #    include <sys/soundcard.h>
 #  else
     /*