Revert "gcc-toolset-12-dwz package is retired on branch c10s for CS-2551"

This reverts commit 98812ed241.

.gitignore

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+SOURCES/dwz-0.14.tar.xz
+/dwz-0.14.tar.xz

README.md

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-# Package Not Available
-This package is not available on CentOS Stream 10.
-It may be available on another branch.

dead.package

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-gcc-toolset-12-dwz package is retired on branch c10s for CS-2551

dwz.spec

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+%global __python /usr/bin/python3
+%{?scl:%scl_package gcc}
+Summary: DWARF optimization and duplicate removal tool
+Name: %{?scl_prefix}dwz
+Version: 0.14
+Release: 2%{?dist}
+License: GPLv2+ and GPLv3+
+# git archive --format=tar --remote=git://sourceware.org/git/dwz.git \
+#   --prefix=dwz-%%{version}/ dwz-%%{version} \
+#   | bzip2 -9 > dwz-%%{version}.tar.bz2
+Source: dwz-%{version}.tar.xz
+BuildRequires: gcc, gcc-c++, gdb, elfutils-libelf-devel, dejagnu
+BuildRequires: make
+%{?scl:Requires:%scl_runtime}
+
+%description
+The dwz package contains a program that attempts to optimize DWARF
+debugging information contained in ELF shared libraries and ELF executables
+for size, by replacing DWARF information representation with equivalent
+smaller representation where possible and by reducing the amount of
+duplication using techniques from DWARF standard appendix E - creating
+DW_TAG_partial_unit compilation units (CUs) for duplicated information
+and using DW_TAG_imported_unit to import it into each CU that needs it.
+
+%prep
+%setup -q -n dwz
+
+%build
+%make_build CFLAGS='%{optflags}' LDFLAGS='%{build_ldflags}' \
+  prefix=%{_prefix} mandir=%{_mandir} bindir=%{_bindir}
+
+%install
+rm -rf %{buildroot}
+%make_install prefix=%{_prefix} mandir=%{_mandir} bindir=%{_bindir}
+
+%check
+make check
+
+%files
+%license COPYING COPYING3 COPYING.RUNTIME
+%{_bindir}/dwz
+%{_mandir}/man1/dwz.1*
+
+%changelog
+* Tue May 11 2021 Marek Polacek <polacek@redhat.com> 0.14-2
+- update to dwz 0.14 (#1841830)
+- add make check
+- use make macros
+
+* Wed May 20 2020 Marek Polacek <polacek@redhat.com> 0.12-1
+- new package

sources

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+SHA512 (dwz-0.14.tar.xz) = 62c39f79723ca99305dbb08d1d24a17699b9a84dd98c30904103da116831b1253bf1edbfb905c76fdc4d48305bd1ea0046314c5619209c40a1e624b8ae4908b1