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-rw-r--r--src/emacs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/emacs.c b/src/emacs.c
index b84f137be8d..88ec4877316 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -827,7 +827,7 @@ main (argc, argv
heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static);
}
-#if (GNU_LINUX) && __GNU_LIBRARY__ - 0 < 6
+#if defined(GNU_LINUX) && __GNU_LIBRARY__ - 0 < 6
__sbrk (1);
#endif