Add clang tool chain support
(cherry picked from commit 2d026042952afd5d7f283838d06ed28a6013ea71)
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liyunfei
openeuler-sync-bot
parent
1e7639d1f8
commit
b2fe4df689
113
Add-support-for-selecting-clang-as-a-toolchain.patch
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113
Add-support-for-selecting-clang-as-a-toolchain.patch
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@ -0,0 +1,113 @@
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From f2a6af2ce79e26bf47604b610056d8c524b647f2 Mon Sep 17 00:00:00 2001
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From: liyunfei <liyunfei33@huawei.com>
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Date: Tue, 9 Jan 2024 20:39:10 +0800
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Subject: [PATCH 1/2] Add support for selecting clang as a toolchain
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---
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generic-hardened-clang.cfg | 1 +
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macros | 56 ++++++++++++++++++++++++++++++++++++--
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2 files changed, 57 insertions(+), 3 deletions(-)
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create mode 100644 generic-hardened-clang.cfg
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diff --git a/generic-hardened-clang.cfg b/generic-hardened-clang.cfg
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new file mode 100644
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index 0000000..ac596df
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--- /dev/null
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+++ b/generic-hardened-clang.cfg
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@@ -0,0 +1 @@
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+-fPIE
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\ No newline at end of file
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diff --git a/macros b/macros
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index 5fdaf0a..0062126 100755
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--- a/macros
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+++ b/macros
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@@ -23,6 +23,46 @@
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%_build_id_links none
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+# GCC toolchain
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+%__cc_gcc gcc
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+%__cxx_gcc g++
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+%__cpp_gcc gcc -E
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+
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+# Clang toolchain
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+%__cc_clang clang
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+%__cxx_clang clang++
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+%__cpp_clang clang-cpp
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+
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+# Default to the GCC toolchain
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+#
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+# It is enough to override `toolchain` macro and all relevant macro for C/C++
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+# compilers will be switched. Either in the spec or in the command-line.
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+#
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+# %global toolchain clang
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+#
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+# or:
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+#
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+# rpmbuild -D "toolchain clang" …
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+#
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+# Inside a spec file it is also possible to determine which toolchain is in use
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+# by testing the same macro. For example:
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+#
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+# %if "%{toolchain}" == "gcc"
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+# BuildRequires: gcc
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+# %endif
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+#
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+# or:
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+#
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+# %if "%{toolchain}" == "clang"
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+# BuildRequires: clang compiler-rt
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+# %endif
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+#
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+%toolchain gcc
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+
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+%__cc %{expand:%%{__cc_%{toolchain}}}
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+%__cxx %{expand:%%{__cxx_%{toolchain}}}
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+%__cpp %{expand:%%{__cpp_%{toolchain}}}
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+
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#==============================================================================
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# ---- compiler flags.
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@@ -31,7 +71,13 @@
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%build_fflags %{optflags} -fexceptions -I%{_fmoddir}
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%build_ldflags -Wl,-z,relro %{_ld_as_needed_flags} %{_ld_symbols_flags} %{_hardened_ldflags}
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+%set_build_cc \
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+ CC=%{__cc}; export CC ; \
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+ CXX=%{__cxx}; export CXX ; \
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+ CCC="${CCC:-%{__cxx}}" ; export CCC
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+
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%set_build_flags \
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+ %[ "%{toolchain}" == "gcc" ? "" : "%{set_build_cc};" ] \
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CFLAGS="${CFLAGS:-%{build_cflags}}" ; export CFLAGS ; \
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CXXFLAGS="${CXXFLAGS:-%{build_cxxflags}}" ; export CXXFLAGS ; \
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FFLAGS="${FFLAGS:-%{build_fflags}}" ; export FFLAGS ; \
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@@ -162,8 +208,10 @@
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# secure options for rpmbuild
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#
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# #hardened options
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-%_hardening_cflags -specs=/usr/lib/rpm/generic-hardened-cc1
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-%_hardening_ldflags -Wl,-z,now -specs=/usr/lib/rpm/generic-hardened-ld
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+%_hardening_gcc_cflags -specs=/usr/lib/rpm/generic-hardened-cc1
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+%_hardening_clang_cflags --config /usr/lib/rpm/generic-hardened-clang.cfg
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+%_hardening_cflags %{expand:%%{_hardening_%{toolchain}_cflags}}
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+%_hardening_ldflags -Wl,-z,now %[ "%{toolchain}" == "gcc" ? "-specs=/usr/lib/rpm/generic-hardened-ld" : "" ]
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# Use "%undefine _hardened_build" to disable.
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%_hardened_build 1
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%_hardened_cflags %{?_hardened_build:%{_hardening_cflags}}
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@@ -195,7 +243,11 @@
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# use "%define _ld_as_needed 1" to enable.
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%_ld_as_needed_flags %{?_ld_as_needed:-Wl,--as-needed}
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-%__global_compiler_flags -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -grecord-gcc-switches %{_hardened_cflags}
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+%_general_options -O2 -g -grecord-gcc-switches -pipe -fstack-protector-strong %[ "%{toolchain}" == "clang" ? "-fgcc-compatible" : "" ]
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+%_warning_options -Wall -Werror=format-security
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+%_preprocessor_defines -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS
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+
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+%__global_compiler_flags %{_general_options} %{_warning_options} %{_preprocessor_defines} %{_hardened_cflags}
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# Automatically trim changelog entries after 2 years
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%_changelog_trimtime %{lua:print(os.time() - 2 * 365 * 86400)}
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--
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2.27.0
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49
Call-set_build_flags-cc-before-build-check-and-insta.patch
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49
Call-set_build_flags-cc-before-build-check-and-insta.patch
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@ -0,0 +1,49 @@
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From c6b15b8c17f957d736dd975d106b10d419070ebd Mon Sep 17 00:00:00 2001
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From: liyunfei <liyunfei33@huawei.com>
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Date: Tue, 9 Jan 2024 20:50:34 +0800
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Subject: [PATCH 2/2] Call %set_build_flags&cc before %build, %check, and
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%install stages
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---
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macros | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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diff --git a/macros b/macros
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index 0062126..8c16706 100755
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--- a/macros
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+++ b/macros
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@@ -83,6 +83,22 @@
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FCFLAGS="${FCFLAGS:-%{build_fflags}}" ; export FCFLAGS ; \
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LDFLAGS="${LDFLAGS:-%{build_ldflags}}" ; export LDFLAGS
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+# Automatically use set_build_flags macro for build, check, and
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+# install phases.
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+# Use "%undefine _auto_set_build_flags" to disable"
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+# Automatically use set_build_cc macro for build, check, and
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+# install phases.
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+# Use "%undefine _auto_set_build_cc" to disable"
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+%_auto_set_build_cc %["%{toolchain}" == "gcc" ? 0 : 1]
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+%_auto_set_build_flags 0
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+
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+%__spec_build_pre %{___build_pre} \
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+ %[%{_auto_set_build_cc} ? "%{set_build_cc}" : ""] \
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+ %[%{_auto_set_build_flags} ? "%{set_build_flags}" : ""]
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+%__spec_check_pre %{___build_pre} \
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+ %[%{_auto_set_build_cc} ? "%{set_build_cc}" : ""] \
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+ %[%{_auto_set_build_flags} ? "%{set_build_flags}" : ""]
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+
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#For backwards compatibility only.
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%__global_cflags %{build_cflags}
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%__global_cxxflags %{build_cxxflags}
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@@ -144,6 +158,8 @@
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[ "$RPM_BUILD_ROOT" != "/" ] && rm -rf "${RPM_BUILD_ROOT}"\
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mkdir -p `dirname "$RPM_BUILD_ROOT"`\
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mkdir "$RPM_BUILD_ROOT"\
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+ %[%{_auto_set_build_cc} ? "%{set_build_cc}" : ""]\
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+ %[%{_auto_set_build_flags} ? "%{set_build_flags}" : ""]\
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%{nil}
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# ---- Expanded at end of %install scriptlet.
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--
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2.27.0
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@ -3,7 +3,7 @@
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Name: %{vendor}-rpm-config
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Version: 30
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Release: 49
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Release: 50
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License: GPL+
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Summary: specific rpm configuration files
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URL: https://gitee.com/openeuler/openEuler-rpm-config
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@ -35,6 +35,8 @@ Patch21: check-if-the-file-is-a-symbolic-link-in-brp-digest-list.patch
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Patch22: fix-the-ELF-file-cannot-be-found-due-to-escape-of.patch
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Patch23: add-powerpc64le-and-ppc64le-support.patch
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Patch24: Delete-the-commented-code.patch
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Patch25: Add-support-for-selecting-clang-as-a-toolchain.patch
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Patch26: Call-set_build_flags-cc-before-build-check-and-insta.patch
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Provides: python-rpm-macros = %{?epoch:%{epoch}:}%{version}-%{release}
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Provides: python2-rpm-macros = %{?epoch:%{epoch}:}%{version}-%{release}
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@ -146,6 +148,9 @@ sed -i "s/__vendor/%{vendor}/g" `grep "__vendor" -rl %{buildroot}%{_rpmconfigdir
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%{rpmvdir}/find-requires.ksyms
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%changelog
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* Tue Mar 12 2024 liyunfei <liyunfei33@huawei.com> - 30-50
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- Add clang toolchain support
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* Tue Mar 5 2024 hongjinghao <hongjinghao@huawei.com> - 30-49
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- Delete the commented code
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