diff -rupN inkscape-0.48.4/configure.ac inkscape-0.48.4-new/configure.ac
--- inkscape-0.48.4/configure.ac	2012-12-15 17:50:19.205918190 +0100
+++ inkscape-0.48.4-new/configure.ac	2014-05-15 00:29:24.076377009 +0200
@@ -263,7 +263,7 @@ if test "x$gc_ok" = "xyes" && test "x$cr
 			# include <gc.h>
 			#endif
 			#include <stdio.h>
-			extern unsigned GC_version;
+			unsigned GC_version = GC_get_version();
 			int main(void){
 				unsigned min = ((6 << 16) | (4 << 8) | 0);
 				printf("%d.%d.%d ",GC_version >> 16, (GC_version >> 8) & 0xFF, GC_version & 0xFF);
diff -rupN inkscape-0.48.4/src/gc-core.h inkscape-0.48.4-new/src/gc-core.h
--- inkscape-0.48.4/src/gc-core.h	2012-02-14 04:22:17.670697000 +0100
+++ inkscape-0.48.4-new/src/gc-core.h	2014-05-15 00:28:40.838404308 +0200
@@ -57,7 +57,7 @@ struct Ops {
                                            CleanupFunc *old_func,
                                            void **old_data);
     int (*general_register_disappearing_link)(void **p_ptr,
-                                              void *base);
+                                              const void *base);
     int (*unregister_disappearing_link)(void **p_ptr);
     std::size_t (*get_heap_size)();
     std::size_t (*get_free_bytes)();
diff -rupN inkscape-0.48.4/src/gc.cpp inkscape-0.48.4-new/src/gc.cpp
--- inkscape-0.48.4/src/gc.cpp	2012-02-14 04:22:17.670697000 +0100
+++ inkscape-0.48.4-new/src/gc.cpp	2014-05-15 00:28:40.839404331 +0200
@@ -70,8 +70,8 @@ void *debug_base(void *ptr) {
     return base + debug_base_fixup();
 }
 
-int debug_general_register_disappearing_link(void **p_ptr, void *base) {
-    char *real_base=reinterpret_cast<char *>(base) - debug_base_fixup();
+int debug_general_register_disappearing_link(void **p_ptr, const void *base) {
+    char *real_base=const_cast<char *>(reinterpret_cast<const char *>(base)) - debug_base_fixup();
     return GC_general_register_disappearing_link(p_ptr, real_base);
 }
 
@@ -90,7 +90,7 @@ void dummy_register_finalizer(void *, Cl
     }
 }
 
-int dummy_general_register_disappearing_link(void **, void *) { return false; }
+int dummy_general_register_disappearing_link(void **, const void *) { return false; }
 
 int dummy_unregister_disappearing_link(void **/*link*/) { return false; }
 
@@ -112,7 +112,11 @@ Ops enabled_ops = {
     &GC_malloc_atomic_uncollectable,
     &GC_base,
     &GC_register_finalizer_ignore_self,
+#if (GC_MAJOR_VERSION >= 7 && GC_MINOR_VERSION >= 4)
     &GC_general_register_disappearing_link,
+#else
+    (int (*)(void**, const void*))(&GC_general_register_disappearing_link),
+#endif
     &GC_unregister_disappearing_link,
     &GC_get_heap_size,
     &GC_get_free_bytes,
@@ -202,7 +206,7 @@ void stub_register_finalizer_ignore_self
     die_because_not_initialized();
 }
 
-int stub_general_register_disappearing_link(void **, void *) {
+int stub_general_register_disappearing_link(void **, const void *) {
     die_because_not_initialized();
     return 0;
 }