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-rw-r--r--cpukit/libcsupport/src/malloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/cpukit/libcsupport/src/malloc.c b/cpukit/libcsupport/src/malloc.c
index 35acf86a2f..1c0c00b732 100644
--- a/cpukit/libcsupport/src/malloc.c
+++ b/cpukit/libcsupport/src/malloc.c
@@ -28,7 +28,7 @@
#include <string.h>
/* for sbrk prototype in linux */
-#if defined(linux)
+#if defined(__linux__)
#define __USE_MISC
#endif
#include <unistd.h> /* sbrk(2) */