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-rw-r--r--include/unistd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/unistd.h b/include/unistd.h
index b9e48149..c0994af4 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -144,6 +144,8 @@ void sync(void);
 #endif
 
 #ifdef _GNU_SOURCE
+int brk(void *);
+void *sbrk(intptr_t);
 pid_t vfork(void);
 int vhangup(void);
 int chroot(const char *);