Not found <objc/objc-api.h>, when I use arm cross compile

[linopeng]

Hi,
I try to build and install the library by Ubuntu 22.04 arm-linux-gnueabihf-gcc(version 11) but build error message as below.

runtime.c:35:10: fatal error: objc/objc-api.h: No such file or directory
35 | #include <objc/objc-api.h>

As I know objc-api.h is no support after GCC 4.7.0. (https://gcc.gnu.org/onlinedocs/gcc/Traditional-GNU-Objective-C-runtime-API.html) But I compile the library by x86 gcc, it's completely done. Below is my configure tools-make and libs-base info. If there is anyone can give me some advices? I will be really grateful for that. Thanks. Sorry if I am not clear, I will elaborate if this is still unclear.

tools-make:
../configure --prefix=/home/linopeng/my_project/install-gnustep-arm --host=arm-linux-gnueabihf CC=/usr/bin/arm-linux-gnueabihf-gcc CXX=/usr/bin/arm-linux-gnueabihf-g++ LD=/usr/bin/arm-linux-gnueabihf-ld AS=/usr/bin/arm-linux-gnueabihf-as NM=/usr/bin/arm-linux-gnueabihf-nm AR=/usr/bin/arm-linux-gnueabihf-ar RANLIB=/usr/bin/arm-linux-gnueabihf-ranlib READELF=/usr/bin/arm-linux-gnueabihf-readelf OBJCXX=/usr/bin/arm-linux-gnueabihf-gcc --enable-nxconstantstring

libs-make:
../configure --prefix=/home/linopeng/my_project/install-gnustep-arm --host=arm-linux-gnueabihf CC=/usr/bin/arm-linux-gnueabihf-gcc CXX=/usr/bin/arm-linux-gnueabihf-g++ LD=/usr/bin/arm-linux-gnueabihf-ld AS=/usr/bin/arm-linux-gnueabihf-as NM=/usr/bin/arm-linux-gnueabihf-nm AR=/usr/bin/arm-linux-gnueabihf-ar RANLIB=/usr/bin/arm-linux-gnueabihf-ranlib READELF=/usr/bin/arm-linux-gnueabihf-readelf OBJCXX=/usr/bin/arm-linux-gnueabihf-gcc --enable-nxconstantstring --disable-xslt --disable-icu --disable-tls