From bc4d9cb354363141247f7bc6ab8b0fee563dae97 Mon Sep 17 00:00:00 2001
From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
Date: Tue, 12 Mar 2019 15:53:03 -0500
Subject: unistd: namespace pollution fixes

These interfaces are all scheduled for addition in Issue 8.

They cannot be available if _XOPEN_SOURCE is <= 700, or
_POSIX_C_SOURCE is <= 200809L.
---
 include/unistd.h | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

(limited to 'include/unistd.h')

diff --git a/include/unistd.h b/include/unistd.h
index 0ee0e922..e6bf2ca7 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -37,16 +37,23 @@ extern "C" {
 #include <bits/alltypes.h>
 
 int pipe(int [2]);
-int pipe2(int [2], int);
 int close(int);
-int posix_close(int, int);
 int dup(int);
 int dup2(int, int);
-int dup3(int, int, int);
 off_t lseek(int, off_t, int);
 int fsync(int);
 int fdatasync(int);
 
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
+ || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 > 700) \
+ || (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE+0 > 200809L)
+int pipe2(int [2], int);
+int dup3(int, int, int);
+int posix_close(int, int);
+
+#define POSIX_CLOSE_RESTART     0
+#endif
+
 ssize_t read(int, void *, size_t);
 ssize_t write(int, const void *, size_t);
 ssize_t pread(int, void *, size_t, off_t);
@@ -208,8 +215,6 @@ pid_t gettid(void);
 #define off64_t off_t
 #endif
 
-#define POSIX_CLOSE_RESTART     0
-
 #define _XOPEN_VERSION          700
 #define _XOPEN_UNIX             1
 #define _XOPEN_ENH_I18N         1
-- 
cgit v1.2.3-70-g09d2