32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
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From dea29a67bd5b7523da7678eb5b37f42c0e2759b7 Mon Sep 17 00:00:00 2001
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From: Bernhard Manfred Gruber <bernhardmgruber@gmail.com>
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Date: Fri, 25 Jun 2021 14:24:23 +0200
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Subject: [PATCH] support GCC standard libraries which do not define
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__GLIBC_PREREQ
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---
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Vc/global.h | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/Vc/global.h b/Vc/global.h
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index 6f85b3ce2..d19dc45c2 100644
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--- a/Vc/global.h
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+++ b/Vc/global.h
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@@ -132,10 +132,15 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#endif
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#ifdef Vc_GCC
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-# if Vc_GCC >= 0x70000 && defined __i386__ && (!defined __GLIBC_PREREQ || !__GLIBC_PREREQ(2,26))
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+# if Vc_GCC >= 0x70000 && defined __i386__
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// GCC 7 changed alignof(max_align_t) to 16. glibc 2.26 followed with malloc in 2.26.
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// 1. If GCC >= 7 and libc is not glibc max_align_t and malloc mismatch
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// 2. If GCC >= 7 and libc is glibc < 2.26 max_align_t and malloc mismatch
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+# ifdef __GLIBC_PREREQ
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+# if __GLIBC_PREREQ(2,26)
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+# define Vc_HAVE_STD_MAX_ALIGN_T 1
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+# endif
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+# endif
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# elif Vc_GCC >= 0x40900
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# define Vc_HAVE_STD_MAX_ALIGN_T 1
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# else
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