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-rw-r--r--boehm-gc/include/private/gcconfig.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index aa81f15b06c..44b9d7d86c3 100644
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -2137,7 +2137,7 @@
# endif
# endif
-#if defined(LINUX) && defined(USE_MMAP)
+#if (defined(LINUX) || defined(HURD)) && defined(USE_MMAP)
/* The kernel may do a somewhat better job merging mappings etc. */
/* with anonymous mappings. */
# define USE_MMAP_ANON