libstdc++ doxygen build error

[SAIFI]

Hi:

while doing a doxygen build of libstdc++ the following error is seen.

<snipped>
...
Generating caller graph for function __pstl::__unseq_backend::__simd_count
Generating caller graph for function __pstl::__unseq_backend::__simd_fill_n
Generati../../../../../../src/gcc/libstdc++-v3/scripts/run_doxygen: line 183: 227779 Segmentation fault      (core dumped) doxygen ${outdir}/${mode}.cf
make[3]: [Makefile:933: stamp-html-doxygen] Error 139 (ignored)
echo timestamp > stamp-html-doxygen
echo timestamp > stamp-html
make[3]: Leaving directory '/strikr/infra/build/gcc/x86_64-pc-linux-gnu/libstdc++-v3/doc'
make[2]: Leaving directory '/strikr/infra/build/gcc/x86_64-pc-linux-gnu/libstdc++-v3'


here is the background,


0. configure step for the doxygen build

DIR_SRC_LIBSTDCXX=../../../src/gcc/libstdc++-v3
DIR_DST_LIBSTDCXX=/opt/gcc

${DIR_SRC_LIBSTDCXX}/configure                        \
           --prefix=${DIR_DST_LIBSTDCXX}               \
           --datadir=${DIR_DST_LIBSTDCXX}/share        \
           --htmldir=${DIR_DST_LIBSTDCXX}/share        \
           --disable-multilib


1. make step

make doc-html-doxygen


doxygen 1.9.1-1 is being used for the build, if that helps.

Has anyone encountered this ? Any work around ? Any tweaks one can make in user.config.in ?


warm regards
Saifi.