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Accepting request 1062299 from home:Andreas_Schwab:glibc:rebuild

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- tests-tsprintf.patch: Avoid testsuite failure with glibc >= 2.37

OBS-URL: https://build.opensuse.org/request/show/1062299
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/mpfr?expand=0&rev=75
This commit is contained in:
Richard Biener 2023-02-01 07:35:32 +00:00 committed by Git OBS Bridge
parent 1df245fcd6
commit 5cbd214a2a
3 changed files with 63 additions and 0 deletions
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5
mpfr.changes
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@ -1,3 +1,8 @@
-------------------------------------------------------------------
Tue Jan 31 15:58:22 UTC 2023 - Andreas Schwab <schwab@suse.de>
- tests-tsprintf.patch: Avoid testsuite failure with glibc >= 2.37
-------------------------------------------------------------------
Mon Jan 9 08:22:17 UTC 2023 - Richard Biener <rguenther@suse.com>

2
mpfr.spec
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@ -27,6 +27,7 @@ Source0: https://www.mpfr.org/mpfr-%{version}/mpfr-%{version}.tar.xz
Source1: https://www.mpfr.org/mpfr-%{version}/mpfr-%{version}.tar.xz.asc
Source2: %{name}.keyring
Source3: baselibs.conf
Patch0: tests-tsprintf.patch
BuildRequires: gmp-devel
BuildRequires: pkgconfig
@ -67,6 +68,7 @@ based on the GMP multiple-precision library.
%prep
%setup -q
%patch0 -p1
%build
%configure \

56
tests-tsprintf.patch Normal file
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@ -0,0 +1,56 @@
From 5172494c09718ffcb7ef1f19b3b211e3bce8781a Mon Sep 17 00:00:00 2001
From: Vincent Lefevre <vincent@vinc17.net>
Date: Tue, 10 Jan 2023 17:05:17 +0100
Subject: [PATCH] [tests/tsprintf.c] Modified a buggy test of the thousands
separator.
The test
check_vsprintf ("+01,234,567 :", "%0+ -'13.10Pd:", (mpfr_prec_t) 1234567);
is based on the output from glibc up to 2.36, which is incorrect:
https://sourceware.org/bugzilla/show_bug.cgi?id=23432
The GNU C Library has apparently been partially fixed in its Git
repository for the future 2.37, since a tsprintf failure has been
reported (this is a bug in this test, not in the MPFR library):
https://sympa.inria.fr/sympa/arc/mpfr/2023-01/msg00001.html
So, modified the test to avoid the particular case of leading zeros
due to the precision field larger than the number of digits. This
case has already been tested without the thousands separator (where
there are no issues with the C libraries), so that we do not miss
much testing. Added a comment explaining the issue and a possible
solution for future testing of this particular case (if need be).
---
tests/tsprintf.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/tests/tsprintf.c b/tests/tsprintf.c
index c68b2ba71..c0182503b 100644
--- a/tests/tsprintf.c
+++ b/tests/tsprintf.c
@@ -1719,7 +1719,17 @@ test_locale (void)
check_sprintf ("000000001,000", "%'013.4Rg", x);
#ifdef PRINTF_GROUPFLAG
- check_vsprintf ("+01,234,567 :", "%0+ -'13.10Pd:", (mpfr_prec_t) 1234567);
+ /* Do not test the thousands separator with a precision field larger
+ than the number of digits (thus needing leading zeros), such as
+ "%0+ -'13.10Pd:" (used up to MPFR 4.2.0), since the GNU libc is
+ buggy: https://sourceware.org/bugzilla/show_bug.cgi?id=23432
+ We don't know about the other implementations.
+ If we wanted to check that and avoid a failure of the test because of
+ a buggy C library (while MPFR would be consistent with the C library),
+ we could compare the MPFR output with both the correct output and the
+ output from the C library (possibly buggy). But to do that in a clean
+ way, this would require a change in the check_vsprintf() call. */
+ check_vsprintf ("+1,234,567 :", "%0+ -'13Pd:", (mpfr_prec_t) 1234567);
#endif
mpfr_clear (x);
--
2.39.1