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-rw-r--r--include/unistd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/unistd.h b/include/unistd.h
index bb19cd89..ac6055a5 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -178,6 +178,7 @@ char *getusershell(void);
 int acct(const char *);
 long syscall(long, ...);
 int execvpe(const char *, char *const [], char *const []);
+int issetugid(void);
 #endif
 
 #ifdef _GNU_SOURCE