Question

>>> libzlib 1.2.12 Building
PATH="/[...]/buildroot/output/xxx/host/bin:/[...]/buildroot/output/xxx/host/sbin:/usr/local/android/sdk/tools/bin:/usr/local/android/sdk/build-tools/28.0.3:/usr/local/android/sdk/platform-tools:/usr/local/android/android-studio/bin/:/home/baifudong/workspace/sunxi/sunxi-livesuite/x86-64:/usr/local/bin:/home/baifudong/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/opt/flutter-elinux/bin:/home/baifudong/.fzf/bin" /usr/local/bin/make -j1 -C /[...]/buildroot/output/xxx/build/libzlib-1.2.12
/[...]/buildroot/output/xxx/host/bin/mipsel-linux-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -mnan=2008 -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -DNO_FSEEKO -DNO_STRERROR -DNO_snprintf -DHAS_sprintf_void -DHAVE_HIDDEN -I. -c -o example.o test/example.c
In file included from /[...]/buildroot/output/xxx/host/mipsel-buildroot-linux-gnu/sysroot/usr/include/features.h:514,
                 from /[...]/buildroot/output/xxx/host/mipsel-buildroot-linux-gnu/sysroot/usr/include/bits/libc-header-start.h:33,
                 from /[...]/buildroot/output/xxx/host/mipsel-buildroot-linux-gnu/sysroot/usr/include/limits.h:26,
                 from /[...]/buildroot/output/xxx/host/opt/ext-toolchain/lib/gcc/mipsel-buildroot-linux-gnu/11.4.0/include-fixed/limits.h:203,
                 from /[...]/buildroot/output/xxx/host/opt/ext-toolchain/lib/gcc/mipsel-buildroot-linux-gnu/11.4.0/include-fixed/syslimits.h:7,
                 from /[...]/buildroot/output/xxx/host/opt/ext-toolchain/lib/gcc/mipsel-buildroot-linux-gnu/11.4.0/include-fixed/limits.h:34,
                 from ./zconf.h:418,
                 from ./zlib.h:34,
                 from test/example.c:8:
/[...]/buildroot/output/xxx/host/mipsel-buildroot-linux-gnu/sysroot/usr/include/gnu/stubs.h:17:11: fatal error: gnu/stubs-o32_hard_2008.h: No such file or directory
   17 | # include <gnu/stubs-o32_hard_2008.h>
      |           ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.

Answer

package/Makefile.in

-ifeq ($(BR2_mips_xburst),y)
-TARGET_ABI += -mnan=2008
-endif