[Solved] Cross compiler toolchains for Bullseye are broken

f-laurens commented 2 years ago

I am attempting to use the cross compiler toolchains for Bullseye to build Python, and the Python build 'configure' step detects that the compiler is not able to compile a simple program:

configure:2844: checking build system type
configure:2858: result: x86_64-pc-linux-gnu
configure:2878: checking host system type
configure:2891: result: arm-unknown-linux-gnueabihf
configure:2921: checking for python3.9
configure:2948: result: python3.9
configure:2963: checking for python interpreter for cross build
configure:2976: result: python3.9
configure:3042: checking for --enable-universalsdk
configure:3089: result: no
configure:3113: checking for --with-universal-archs
configure:3128: result: no
configure:3284: checking MACHDEP
configure:3335: result: "linux"
configure:3589: checking for arm-linux-gnueabihf-gcc
configure:3605: found /opt/cross-pi-gcc-10.2.0-0/bin/arm-linux-gnueabihf-gcc
configure:3616: result: arm-linux-gnueabihf-gcc
configure:3885: checking for C compiler version
configure:3894: arm-linux-gnueabihf-gcc --version >&5
arm-linux-gnueabihf-gcc (GCC) 10.2.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
configure:3894: arm-linux-gnueabihf-gcc -v >&5
Using built-in specs.
COLLECT_GCC=arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/opt/cross-pi-gcc-10.2.0-0/bin/../libexec/gcc/arm-linux-gnueabihf/10.2.0/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: ../configure --prefix= --target=arm-linux-gnueabihf --enable-languages=c,c++,fortran --with-sysroot=/arm-linux-gnueabihf/libc --with-build-sysroot=/tmp/cross-pi-gcc-10.2.0-0/arm-linux-gnueabihf/libc --with-arch=armv6 --with-fpu=vfp --with-float=hard --disable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.2.0 (GCC) 
configure:3925: checking whether the C compiler works
configure:3947: arm-linux-gnueabihf-gcc    conftest.c  >&5
/opt/cross-pi-gcc-10.2.0-0/bin/../lib/gcc/arm-linux-gnueabihf/10.2.0/../../../../arm-linux-gnueabihf/bin/ld: /opt/cross-pi-gcc-10.2.0-0/bin/../arm-linux-gnueabihf/libc/usr/lib/crt1.o: in function `_start':
/tmp/build_toolchains/glibc-2.31/csu/../sysdeps/arm/start.S:124: undefined reference to `__libc_start_main'
/opt/cross-pi-gcc-10.2.0-0/bin/../lib/gcc/arm-linux-gnueabihf/10.2.0/../../../../arm-linux-gnueabihf/bin/ld: /tmp/build_toolchains/glibc-2.31/csu/../sysdeps/arm/start.S:128: undefined reference to `abort'
/opt/cross-pi-gcc-10.2.0-0/bin/../lib/gcc/arm-linux-gnueabihf/10.2.0/../../../../arm-linux-gnueabihf/bin/ld: /tmp/build_toolchains/glibc-2.31/csu/../sysdeps/arm/start.S:113: undefined reference to `__libc_csu_fini'
/opt/cross-pi-gcc-10.2.0-0/bin/../lib/gcc/arm-linux-gnueabihf/10.2.0/../../../../arm-linux-gnueabihf/bin/ld: /tmp/build_toolchains/glibc-2.31/csu/../sysdeps/arm/start.S:120: undefined reference to `__libc_csu_init'
collect2: error: ld returned 1 exit status
configure:3989: result: no
configure: failed program was:
| /* confdefs.h */
| #define _GNU_SOURCE 1
| #define _NETBSD_SOURCE 1
| #define __BSD_VISIBLE 1
| #define _DARWIN_C_SOURCE 1
| #define _PYTHONFRAMEWORK ""
| #define _XOPEN_SOURCE 700
| #define _XOPEN_SOURCE_EXTENDED 1
| #define _POSIX_C_SOURCE 200809L
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:3996: error: C compiler cannot create executables

I do not have the problem when using the equivalent toolchains for Buster.