zstd-sys build fails for armhf in bookworm

[vigneshraman]

zstd v0.13.1
zstd-safe v7.1.0
zstd-sys v2.0.11+zstd.1.5.6

https://gitlab.freedesktop.org/mesa/mesa/-/jobs/60435221

The following warnings were emitted during compilation:

warning: gcc: error: unrecognized command-line option '-mfpu=vfpv3-d16'
warning: ToolExecError: Command "/usr/lib/ccache/gcc" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-march=armv7-a" "-mfpu=vfpv3-d16" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/tmp/cargo-installPmV6O6/armv7-unknown-linux-gnueabihf/release/build/zstd-sys-c0adcc757898782f/out/zstd/lib/common/debug.o" "-c" "zstd/lib/common/debug.c" with args "gcc" did not execute successfully (status code exit status: 1).running: "/usr/lib/ccache/gcc" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-march=armv7-a" "-mfpu=vfpv3-d16" "-I" "zstd/lib/" "-I" "zstd/lib/common" "-I" "zstd/lib/legacy" "-fvisibility=hidden" "-DZSTD_LIB_DEPRECATED=0" "-DXXH_PRIVATE_API=" "-DZSTDLIB_VISIBILITY=" "-DZDICTLIB_VISIBILITY=" "-DZSTDERRORLIB_VISIBILITY=" "-DZSTD_LEGACY_SUPPORT=1" "-o" "/tmp/cargo-installPmV6O6/armv7-unknown-linux-gnueabihf/release/build/zstd-sys-c0adcc757898782f/out/zstd/lib/common/entropy_common.o" "-c" "zstd/lib/common/entropy_common.c"

[vigneshraman]

Seems to a toolchain issue when cross compiling. So closing this