Bug#1115228: openjdk-8: FTBFS with glibc 2.42 due to conflict with the newly added uabs function

[Aurelien Jarno]

Source: openjdk-8
Version: 8u462-ga-1
Severity: important
Tags: ftbfs forky sid
Justification: fails to build from source
User: debian-glibc at lists.debian.org
Usertags: glibc-2.42

Dear maintainer,

During a rebuild of all packages in unstable with glibc 2.42 from
experimental, your package failed to build. Below you will find how the
build ends. If required, the full build log is available here:

https://people.debian.org/~aurel32/glibc-2.42/

The build failure is due to the addition of the uabs function (part of
ISO C2Y) to glibc 2.42, now conflicting with the openjdk source code:

https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS;h=f0b0e924a45c7698e6ca6415f2d9a096a24e37df;hb=d2097651cc57834dbfcaa102ddfacae0d86cfb66#l22

About the archive rebuild: The build was made on virtual machines from
AWS, using sbuild, a reduced chroot with only build-essential packages
and glibc 2.42 from experimental.

Regards
Aurelien

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[...]
/usr/bin/x86_64-linux-gnu-g++-14 -DLINUX -D_GNU_SOURCE -DAMD64 -DPRODUCT -I. -I/<<PKGBUILDDIR>>/src/hotspot/src/share/vm/prims -I/<<PKGBUILDDIR>>/src/hotspot/src/share/vm -I/<<PKGBUILDDIR>>/src/hotspot/src/share/vm/precompiled -I/<<PKGBUILDDIR>>/src/hotspot/src/cpu/x86/vm -I/<<PKGBUILDDIR>>/src/hotspot/src/os_cpu/linux_x86/vm -I/<<PKGBUILDDIR>>/src/hotspot/src/os/linux/vm -I/<<PKGBUILDDIR>>/src/hotspot/src/os/posix/vm -I../generated -DHOTSPOT_RELEASE_VERSION="\"25.462-b08\"" -DHOTSPOT_BUILD_TARGET="\"product\"" -DHOTSPOT_BUILD_USER="\"buildd\"" -DHOTSPOT_LIB_ARCH=\"amd64\" -DHOTSPOT_VM_DISTRO="\"OpenJDK\"" -DDEB_MULTIARCH="\"x86_64-linux-gnu\""  -fstack-protector  -DTARGET_OS_FAMILY_linux -DTARGET_ARCH_x86 -DTARGET_ARCH_MODEL_x86_64 -DTARGET_OS_ARCH_linux_x86 -DTARGET_OS_ARCH_MODEL_linux_x86_64 -DTARGET_COMPILER_gcc -DINCLUDE_JFR=1 -DCOMPILER2 -DCOMPILER1 -fPIC -fno-rtti -fno-exceptions -D_REENTRANT -fcheck-new -fvisibility=hidden -m64  -pipe -fno-strict-aliasing  -fno-omit-frame-pointer -O3  -DVM_LITTLE_ENDIAN -D_LP64=1  -Wpointer-arith -Wsign-compare -Wundef -Wunused-function -Wunused-value -Wformat=2 -Wreturn-type -Woverloaded-virtual   -fstack-protector -Wdate-time -D_FORTIFY_SOURCE=2 -g -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -fno-delete-null-pointer-checks -fno-lifetime-dse -std=gnu++98 -c -MMD -MP -MF ../generated/dependencies/precompiled.hpp.gch.d -fpch-deps -x c++-header /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/precompiled/precompiled.hpp -o precompiled.hpp.gch && { echo Done with ; }
cc1plus: warning: '-Werror=' argument '-Werror=implicit-function-declaration' is not valid for C++
In file included from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/utilities/debug.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/runtime/globals.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/memory/allocation.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/memory/iterator.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/memory/genOopClosures.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/oops/klass.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/runtime/handles.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/memory/universe.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/code/oopRecorder.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/asm/codeBuffer.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/asm/assembler.hpp:28,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/precompiled/precompiled.hpp:29:
/<<PKGBUILDDIR>>/src/hotspot/src/share/vm/utilities/globalDefinitions.hpp:1276:28: error: 'unsigned int uabs(int)' was declared 'extern' and later 'static' [-fpermissive]
 1276 | static inline unsigned int uabs(int n) { return uabs((unsigned int)n); }
      |                            ^~~~
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/c++/14/stdlib.h:36,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp:39,
                 from /<<PKGBUILDDIR>>/src/hotspot/src/share/vm/utilities/globalDefinitions.hpp:38:
/usr/include/stdlib.h:989:21: note: previous declaration of 'unsigned int uabs(int)'
  989 | extern unsigned int uabs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |                     ^~~~
gmake[7]: *** [/<<PKGBUILDDIR>>/src/hotspot/make/linux/makefiles/vm.make:317: precompiled.hpp.gch] Error 1
gmake[7]: Leaving directory '/<<PKGBUILDDIR>>/build/hotspot/linux_amd64_compiler2/product'
gmake[6]: *** [/<<PKGBUILDDIR>>/src/hotspot/make/linux/makefiles/top.make:119: the_vm] Error 2
gmake[6]: Leaving directory '/<<PKGBUILDDIR>>/build/hotspot/linux_amd64_compiler2/product'
gmake[5]: *** [/<<PKGBUILDDIR>>/src/hotspot/make/linux/Makefile:284: product] Error 2
gmake[5]: Leaving directory '/<<PKGBUILDDIR>>/build/hotspot'
gmake[4]: *** [Makefile:231: generic_build2] Error 2
gmake[4]: Leaving directory '/<<PKGBUILDDIR>>/src/hotspot/make'
gmake[3]: *** [Makefile:177: product] Error 2
gmake[3]: Leaving directory '/<<PKGBUILDDIR>>/src/hotspot/make'
gmake[2]: *** [HotspotWrapper.gmk:45: /<<PKGBUILDDIR>>/build/hotspot/_hotspot.timestamp] Error 2
gmake[2]: Leaving directory '/<<PKGBUILDDIR>>/src/make'
make[1]: *** [/<<PKGBUILDDIR>>/src//make/Main.gmk:110: hotspot-only] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>/build'
make: *** [debian/rules:1138: stamps/build] Error 1
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
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