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2e266f33b5
The 32 to 64-bit time_t transition causes a build failure in the built-in
zlib about conflicting _TIME_BITS and _FILE_OFFSET_BITS.
Note that zlib doesn't use time_t at all, so it is a false alarm.
Take the following patch from upstream zlib:
a566e156b3.patch
Closes #29980.
31 lines
1 KiB
Diff
31 lines
1 KiB
Diff
From a566e156b3fa07b566ddbf6801b517a9dba04fa3 Mon Sep 17 00:00:00 2001
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From: Mark Adler <madler@alumni.caltech.edu>
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Date: Sat, 29 Jul 2023 22:13:09 -0700
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Subject: [PATCH] Avoid compiler complaints if _TIME_BITS defined when building
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zlib.
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zlib does not use time_t, so _TIME_BITS is irrelevant. However it
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may be defined anyway as part of a sledgehammer indiscriminately
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applied to all builds.
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From https://github.com/madler/zlib/commit/a566e156b3fa07b566ddbf6801b517a9dba04fa3.patch
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---
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qtbase/src/3rdparty/zlib/src/gzguts.h | 5 ++---
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1 file changed, 2 insertions(+), 3 deletions(-)
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diff --git a/qtbase/src/3rdparty/zlib/src/gzguts.h b/qtbase/src/3rdparty/zlib/src/gzguts.h
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index e23f831f5..f9375047e 100644
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--- a/qtbase/src/3rdparty/zlib/src/gzguts.h
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+++ b/qtbase/src/3rdparty/zlib/src/gzguts.h
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@@ -26,9 +26,8 @@
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# ifndef _LARGEFILE_SOURCE
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# define _LARGEFILE_SOURCE 1
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# endif
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-# ifdef _FILE_OFFSET_BITS
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-# undef _FILE_OFFSET_BITS
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-# endif
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+# undef _FILE_OFFSET_BITS
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+# undef _TIME_BITS
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#endif
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#ifdef HAVE_HIDDEN
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