import UBI gcc-toolset-14-gcc-14.2.1-10.el8_10
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SOURCES/gcc14-RHEL-49861.patch
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SOURCES/gcc14-RHEL-49861.patch
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From 9d5baaa92c6609191fd2488389562ac1ad1f0fb2 Mon Sep 17 00:00:00 2001
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From: Jonathan Wakely <jwakely@redhat.com>
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Date: Fri, 28 Mar 2025 15:41:41 +0000
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Subject: [PATCH] libstdc++: Fix -Warray-bounds warning in std::vector<bool>
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[PR110498]
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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In this case, we need to tell the compiler that the current size is not
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larger than the new size so that all the existing elements can be copied
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to the new storage. This avoids bogus warnings about overflowing the new
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storage when the compiler can't tell that that cannot happen.
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We might as well also hoist the loads of begin() and end() before the
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allocation too. All callers will have loaded at least begin() before
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calling _M_reallocate.
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libstdc++-v3/ChangeLog:
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PR libstdc++/110498
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* include/bits/vector.tcc (vector<bool, A>::_M_reallocate):
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Hoist loads of begin() and end() before allocation and use them
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to state an unreachable condition.
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* testsuite/23_containers/vector/bool/capacity/110498.cc: New
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test.
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Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com>
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(cherry picked from commit aa3aaf2bfb8fcc17076993df4297597b68bc5f60)
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---
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libstdc++-v3/include/bits/vector.tcc | 5 ++++-
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.../vector/bool/capacity/110498.cc | 18 ++++++++++++++++++
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2 files changed, 22 insertions(+), 1 deletion(-)
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create mode 100644 libstdc++-v3/testsuite/23_containers/vector/bool/capacity/110498.cc
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diff --git a/libstdc++-v3/include/bits/vector.tcc b/libstdc++-v3/include/bits/vector.tcc
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index dafc2a31a8b..c59c15beacd 100644
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--- a/libstdc++-v3/include/bits/vector.tcc
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+++ b/libstdc++-v3/include/bits/vector.tcc
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@@ -1059,9 +1059,12 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
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vector<bool, _Alloc>::
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_M_reallocate(size_type __n)
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{
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+ const iterator __begin = begin(), __end = end();
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+ if (size_type(__end - __begin) > __n)
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+ __builtin_unreachable();
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_Bit_pointer __q = this->_M_allocate(__n);
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iterator __start(std::__addressof(*__q), 0);
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- iterator __finish(_M_copy_aligned(begin(), end(), __start));
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+ iterator __finish(_M_copy_aligned(__begin, __end, __start));
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this->_M_deallocate();
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this->_M_impl._M_start = __start;
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this->_M_impl._M_finish = __finish;
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diff --git a/libstdc++-v3/testsuite/23_containers/vector/bool/capacity/110498.cc b/libstdc++-v3/testsuite/23_containers/vector/bool/capacity/110498.cc
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new file mode 100644
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index 00000000000..d2d09e10d19
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--- /dev/null
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+++ b/libstdc++-v3/testsuite/23_containers/vector/bool/capacity/110498.cc
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@@ -0,0 +1,18 @@
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+// { dg-options "-O3 -Werror=array-bounds" }
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+// { dg-do compile }
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+
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+// Bug libstdc++/110498
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+// Spurious warnings stringop-overflow and array-bounds copying data as bytes
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+// into vector::reserve
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+
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+#include <vector>
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+
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+void f(std::vector<bool>& v)
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+{
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+ // Warning emitted when set to any number in the range [1,64].
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+ const std::size_t reserve_size = 30;
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+
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+ v.reserve(reserve_size);
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+ v.push_back(0);
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+}
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+
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--
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2.49.0
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@ -11,7 +11,7 @@ BuildRequires: scl-utils-build
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%global gcc_major 14
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# Note, gcc_release must be integer, if you want to add suffixes to
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# %%{release}, append them after %%{gcc_release} on Release: line.
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%global gcc_release 7
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%global gcc_release 10
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%global nvptx_tools_gitrev 87ce9dc5999e5fca2e1d3478a30888d9864c9804
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%global newlib_cygwin_gitrev d45261f62a15f8abd94a1031020b9a9f455e4eed
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%global isl_version 0.24
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@ -152,7 +152,7 @@ BuildRequires: scl-utils-build
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Summary: GCC version %{gcc_major}
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Name: %{?scl_prefix}gcc
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Version: %{gcc_version}
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Release: %{gcc_release}.1%{?dist}
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Release: %{gcc_release}%{?dist}
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# License notes for some of the less obvious ones:
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# gcc/doc/cppinternals.texi: Linux-man-pages-copyleft-2-para
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# isl: MIT, BSD-2-Clause
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@ -361,6 +361,8 @@ Patch3015: 0018-Use-CXX11-ABI.patch
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Patch3017: 0020-more-fixes.patch
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Patch3018: 0021-libstdc++-disable-tests.patch
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Patch4000: gcc14-RHEL-49861.patch
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%if 0%{?rhel} == 9
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%global nonsharedver 110
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%endif
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@ -724,6 +726,9 @@ touch -r isl-0.24/m4/ax_prog_cxx_for_build.m4 isl-0.24/m4/ax_prog_cc_for_build.m
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%patch -P3017 -p1 -b .dts-test-17~
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%patch -P3018 -p1 -b .dts-test-18~
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# Bugfix backports.
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%patch -P4000 -p1 -b .RHEL-49861~
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find gcc/testsuite -name \*.pr96939~ | xargs rm -f
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echo 'Red Hat %{version}-%{gcc_release}' > gcc/DEV-PHASE
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@ -1036,20 +1041,6 @@ make %{?_smp_mflags} BOOT_CFLAGS="$OPT_FLAGS" LDFLAGS_FOR_TARGET=-Wl,-z,relro,-z
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make %{?_smp_mflags} BOOT_CFLAGS="$OPT_FLAGS" LDFLAGS_FOR_TARGET=-Wl,-z,relro,-z,now profiledbootstrap
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%endif
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echo '/* GNU ld script
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Use the shared library, but some functions are only in
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the static library, so try that secondarily. */
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%{oformat}
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INPUT ( %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/%{_lib}/libstdc++.so.6 -lstdc++_nonshared%{nonsharedver} )' \
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> %{gcc_target_platform}/libstdc++-v3/src/.libs/libstdc++_system.so
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%if 0
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# Relink libcc1 against -lstdc++_nonshared:
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sed -i -e '/^postdeps/s/-lstdc++/-lstdc++_system/' libcc1/libtool
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rm -f libcc1/libcc1.la
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make -C libcc1 libcc1.la
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%endif
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CC="`%{gcc_target_platform}/libstdc++-v3/scripts/testsuite_flags --build-cc`"
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CXX="`%{gcc_target_platform}/libstdc++-v3/scripts/testsuite_flags --build-cxx` `%{gcc_target_platform}/libstdc++-v3/scripts/testsuite_flags --build-includes`"
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@ -1431,11 +1422,18 @@ echo '/* GNU ld script */
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%{oformat}
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INPUT ( %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/%{_lib}/libgomp.so.1 )' > libgomp.so
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%define libstdcxx_so %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/%{_lib}/libstdc++.so.6
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%define libstdcxx_so_link INPUT ( %{libstdcxx_so} -lstdc++_nonshared AS_NEEDED (%{libstdcxx_so}) )
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%define libstdcxx64_so %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/lib64/libstdc++.so.6
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%define libstdcxx64_so_link INPUT ( %{libstdcxx64_so} -lstdc++_nonshared AS_NEEDED (%{libstdcxx64_so}) )
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%define libstdcxx32_so %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/lib/libstdc++.so.6
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%define libstdcxx32_so_link INPUT ( %{libstdcxx32_so} -lstdc++_nonshared AS_NEEDED (%{libstdcxx32_so}) )
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echo '/* GNU ld script
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Use the shared library, but some functions are only in
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the static library, so try that secondarily. */
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%{oformat}
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INPUT ( %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/%{_lib}/libstdc++.so.6 -lstdc++_nonshared )' > libstdc++.so
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%{libstdcxx_so_link}' > libstdc++.so
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rm -f libgfortran.so
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echo '/* GNU ld script
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Use the shared library, but some functions are only in
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@ -1531,7 +1529,7 @@ echo '/* GNU ld script
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Use the shared library, but some functions are only in
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the static library, so try that secondarily. */
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%{oformat2}
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INPUT ( %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/lib64/libstdc++.so.6 -lstdc++_nonshared )' > 64/libstdc++.so
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%{libstdcxx64_so_link}' > 64/libstdc++.so
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rm -f 64/libgfortran.so
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echo '/* GNU ld script
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Use the shared library, but some functions are only in
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@ -1619,7 +1617,7 @@ echo '/* GNU ld script
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Use the shared library, but some functions are only in
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the static library, so try that secondarily. */
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%{oformat2}
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INPUT ( %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/lib/libstdc++.so.6 -lstdc++_nonshared )' > 32/libstdc++.so
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%{libstdcxx32_so_link}' > 32/libstdc++.so
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rm -f 32/libgfortran.so
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echo '/* GNU ld script
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Use the shared library, but some functions are only in
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@ -1919,7 +1917,7 @@ echo '/* GNU ld script
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Use the shared library, but some functions are only in
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the static library, so try that secondarily. */
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%{oformat}
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INPUT ( %{?scl:%{_root_prefix}}%{!?scl:%{_prefix}}/%{_lib}/libstdc++.so.6 -lstdc++_nonshared )' \
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%{libstdcxx_so_link}' \
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> %{gcc_target_platform}/libstdc++-v3/src/.libs/libstdc++.so
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cp -a %{gcc_target_platform}/libstdc++-v3/src/.libs/libstdc++_nonshared%{nonsharedver}.a \
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%{gcc_target_platform}/libstdc++-v3/src/.libs/libstdc++_nonshared.a
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@ -2796,6 +2794,16 @@ fi
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%endif
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%changelog
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* Wed May 28 2025 Siddhesh Poyarekar <siddhesh@redhat.com> 14.2.1-10
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- Put the libstdc++ AS_NEEDED in the right places (RHEL-84606)
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* Thu May 22 2025 Siddhesh Poyarekar <siddhesh@redhat.com> 14.2.1-9
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- Add AS_NEEDED libstdc++.so.6 when only needed through libstdc++_nonshared
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(RHEL-84606)
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* Thu May 22 2025 Siddhesh Poyarekar <siddhesh@redhat.com> 14.2.1-8
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- libstdc++: Fix -Warray-bounds warning in std::vector<bool> (RHEL-49861)
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* Fri Feb 7 2025 Marek Polacek <polacek@redhat.com> 14.2.1-7.1
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- disable jQuery use, don't ship jquery.js (CVE-2020-11023, RHEL-78284)
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