Bug 2231905

Description of problem:

I am working on updating abseil-cpp[1] to the latest LTS release, 20230802.0[2], in F40/Rawhide and, unless the timeline slips too much, in F39/Branched.

An impact check in COPR[3] shows that mozc is not compatible because it uses internal symbols from the absl::flags_internal that are no longer present in the 20230802.0[4].

Version-Release number of selected component (if applicable):

2.29.5111.102-2


How reproducible:

Steps to Reproduce:

1. fedpkg co abseil-cpp
2. cd abseil-cpp
3. git remote add music https://src.fedoraproject.org/forks/music/rpms/abseil-cpp.git
4. git fetch --all
5. git checkout music/v20230802.0
6. fedpkg --release rawhide mockbuild
7. cd ..
8. fedpkg co mozc
9. cd mozc
10. mock -r fedora-rawhide-x86_64 --clean
11. mock -r fedora-rawhide-x86_64 -i ../abseil-cpp/results_abseil-cpp/20230802.0/1.fc40/{abseil-cpp-20230802.0-1.fc40.x86_64.rpm,abseil-cpp-testing-20230802.0-1.fc40.x86_64.rpm,abseil-cpp-devel-20230802.0-1.fc40.x86_64.rpm}
12. fedpkg mockbuild --no-clean


Actual results:

[52/142] g++ -MMD -MF obj/base/base_core.init_mozc.o.d -DOS_LINUX -DMOZC_BUILD -
DCHANNEL_DEV -DENABLE_GTK_RENDERER '-DMOZC_SERVER_DIR="/usr/libexec/mozc"' '-DMO
ZC_DOCUMENT_DIR="/usr/lib/mozc/documents"' -DNDEBUG -DQT_NO_DEBUG -DMOZC_NO_LOGG
ING -DIGNORE_HELP_FLAG -DIGNORE_INVALID_FLAG -I../../third_party/abseil-cpp -I/b
uilddir/build/BUILD/mozc-2.29.5111.102 -Igen -fmessage-length=0 -fno-strict-alia
sing -funsigned-char -pipe -pthread -O2 -flto=auto -ffat-lto-objects -fexception
s -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-s
ecurity -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -spe
cs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unw
ind-tables -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno
-omit-leaf-frame-pointer -Wall -Wno-char-subscripts -Wno-sign-compare -Wno-depre
cated-declarations -Wwrite-strings -fPIC -fno-exceptions -O2 -O2 -flto=auto -ffa
t-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-s
ecurity -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -spe
cs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unw
ind-tables -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno
-omit-leaf-frame-pointer -Wno-deprecated -std=c++17  -c ../../base/init_mozc.cc 
-o obj/base/base_core.init_mozc.o
FAILED: obj/base/base_core.init_mozc.o
g++ -MMD -MF obj/base/base_core.init_mozc.o.d -DOS_LINUX -DMOZC_BUILD -DCHANNEL_
DEV -DENABLE_GTK_RENDERER '-DMOZC_SERVER_DIR="/usr/libexec/mozc"' '-DMOZC_DOCUME
NT_DIR="/usr/lib/mozc/documents"' -DNDEBUG -DQT_NO_DEBUG -DMOZC_NO_LOGGING -DIGN
ORE_HELP_FLAG -DIGNORE_INVALID_FLAG -I../../third_party/abseil-cpp -I/builddir/b
uild/BUILD/mozc-2.29.5111.102 -Igen -fmessage-length=0 -fno-strict-aliasing -fun
signed-char -pipe -pthread -O2 -flto=auto -ffat-lto-objects -fexceptions -g -gre
cord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -
Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/l
ib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-table
s -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-lea
f-frame-pointer -Wall -Wno-char-subscripts -Wno-sign-compare -Wno-deprecated-dec
larations -Wwrite-strings -fPIC -fno-exceptions -O2 -O2 -flto=auto -ffat-lto-obj
ects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -
Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/l
ib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-table
s -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-lea
f-frame-pointer -Wno-deprecated -std=c++17  -c ../../base/init_mozc.cc -o obj/ba
se/base_core.init_mozc.o
../../base/init_mozc.cc: In function ‘void mozc::{anonymous}::ParseCommandLineFl
ags(int, char**)’:
../../base/init_mozc.cc:90:29: error: ‘absl::lts_20230802::flags_internal::ArgvListAction’ has not been declared
   90 |       absl::flags_internal::ArgvListAction::kRemoveParsedArgs,
      |                             ^~~~~~~~~~~~~~


Expected results:

Build succeeds, as it does with abseil-cpp-20230125.3-2.fc39.


Additional info:

The package fcitx5-mozc is also affected; since it is a fork, whatever works here should work there.

I am happy to help with this as much as I reasonably can, including working with mozc upstream if necessary. However, it’s not immediately obvious to me how usage of these internal APIs should be replaced.

[1] https://src.fedoraproject.org/rpms/abseil-cpp/pull-request/14

[2] https://github.com/abseil/abseil-cpp/releases/tag/20230802.0

[3] https://copr.fedorainfracloud.org/coprs/music/abseil-cpp/packages/

[4] https://github.com/google/mozc/blob/f14a3f49cb56adb4386cb264133a01b32929dfb7/src/base/init_mozc.cc#L90-L94