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-rw-r--r--configure.ac2
-rw-r--r--libguile/gc-malloc.c4
-rw-r--r--libguile/gc.c4
3 files changed, 9 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index d63dd6326..0cfe96165 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1259,7 +1259,7 @@ 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])
+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])
# 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-malloc.c b/libguile/gc-malloc.c
index 72142caaa..b7781f3e7 100644
--- a/libguile/gc-malloc.c
+++ b/libguile/gc-malloc.c
@@ -96,7 +96,11 @@ scm_realloc (void *mem, size_t size)
return ptr;
/* Time is hard: trigger a full, ``stop-the-world'' GC, and try again. */
+#ifdef HAVE_GC_GCOLLECT_AND_UNMAP
GC_gcollect_and_unmap ();
+#else
+ GC_gcollect ();
+#endif
SCM_SYSCALL (ptr = realloc (mem, size));
if (ptr)
diff --git a/libguile/gc.c b/libguile/gc.c
index ff1ebe6b1..0ab27a5e6 100644
--- a/libguile/gc.c
+++ b/libguile/gc.c
@@ -205,7 +205,11 @@ GC_get_heap_usage_safe (GC_word *pheap_size, GC_word *pfree_bytes,
{
*pheap_size = GC_get_heap_size ();
*pfree_bytes = GC_get_free_bytes ();
+#ifdef HAVE_GC_GET_UNMAPPED_BYTES
*punmapped_bytes = GC_get_unmapped_bytes ();
+#else
+ *punmapped_bytes = 0;
+#endif
*pbytes_since_gc = GC_get_bytes_since_gc ();
*ptotal_bytes = GC_get_total_bytes ();
}