more libgc 7.1 compat

* configure.ac:
* libguile/gc.c (GC_set_finalize_on_demand): Check for this function,
  and shim if it isn't present.

diff --git a/configure.ac b/configure.ac
index c9a443b..c506b39 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1232,7 +1232,7 @@ save_LIBS="$LIBS"
 LIBS="$BDW_GC_LIBS $LIBS"
 CFLAGS="$BDW_GC_CFLAGS $CFLAGS"
 
-AC_CHECK_FUNCS([GC_do_blocking GC_call_with_gc_active GC_pthread_exit GC_pthread_cancel GC_allow_register_threads GC_pthread_sigmask GC_set_start_callback GC_get_heap_usage_safe GC_get_free_space_divisor GC_gcollect_and_unmap GC_get_unmapped_bytes GC_set_finalizer_notifier])
+AC_CHECK_FUNCS([GC_do_blocking GC_call_with_gc_active GC_pthread_exit GC_pthread_cancel GC_allow_register_threads GC_pthread_sigmask GC_set_start_callback GC_get_heap_usage_safe GC_get_free_space_divisor GC_gcollect_and_unmap GC_get_unmapped_bytes GC_set_finalizer_notifier GC_set_finalize_on_demand])
 
 # Though the `GC_do_blocking ()' symbol is present in GC 7.1, it is not
 # declared, and has a different type (returning void instead of

diff --git a/libguile/gc.c b/libguile/gc.c
index b1f1605..06b5044 100644 (file)
--- a/libguile/gc.c
+++ b/libguile/gc.c
@@ -618,6 +618,14 @@ scm_getenv_int (const char *var, int def)
   return res;
 }
 
+#ifndef HAVE_GC_SET_FINALIZE_ON_DEMAND
+static void
+GC_set_finalize_on_demand (int foo)
+{
+  GC_finalize_on_demand = foo;
+}
+#endif
+
 void
 scm_storage_prehistory ()
 {