Musl/include/stddef.h:7: warning: "NULL" redefined

What kind of warning is this?

/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined
/home/openwrt/master/openwrt/staging_dir/toolchain-x86_64_gcc-9.3.0_musl/include/stddef.h:7: warning: "NULL" redefined

Sounds like more context is needed.

Just a warning. Ignore it。

This topic was automatically closed 10 days after the last reply. New replies are no longer allowed.