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0682e9edcb
On glibc 2.20+, the _BSD_SOURCE and _SVID_SOURCE feature test macros are deprecated as of glibc 2.19.90 (2.20 devel), we define _DEFAULT_SOURCE instead. (fixed upstream) https://groups.google.com/forum/#!topic/golang-codereviews/S4TARFCxu2k Signed-off-by: Amy Fong <amy.fong@windriver.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
golang-cross: do_compile fails cc1: all warnings being treated as errors
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glibc 2.20 deprecates _BSD_SOURCE and _SVID_SOURCE and emits an error
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message. From patch 16632:
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libc [PATCH] BZ #16632: Disable _SVID_SOURCE/_BSD_SOURCE warning
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if _DEFAULT_SOURCE is defined
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Since we also need to support glibc before 2.20, from the release notes
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for glibc 2.20, the recommended fix is to define _DEFAULT_SOURCE
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(fixed upstream)
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https://groups.google.com/forum/#!topic/golang-codereviews/S4TARFCxu2k
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Signed-off-by: Amy Fong <amy.fong@windriver.com>
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---
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include/u.h | 10 ++++++++++
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1 file changed, 10 insertions(+)
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--- a/include/u.h
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+++ b/include/u.h
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@@ -38,6 +38,16 @@
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# define __MAKECONTEXT_V2_SOURCE 1
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# endif
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#endif
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+/**
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+ * in glibc >= 2.20, _BSD_SOURCE and _SVID_SOURCE causes warning
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+ * messages if _DEFAULT_SOURCE is not defined.
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+ *
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+ * From glibc 2.20 release notes, since this application needs _BSD_SOURCE
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+ * and/or _SVID_SOURCE and we must support glibc < 2.19 and
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+ * glibc >= 2.20, then define all 3 (_DEFAULT_SOURCE, _BSD_SOURCE,
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+ * and _SVID_SOURCE) unconditionally
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+ */
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+#define _DEFAULT_SOURCE 1
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#define _BSD_SOURCE 1
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#define _NETBSD_SOURCE 1 /* NetBSD */
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#define _SVID_SOURCE 1
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