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PROCESSOR-SDK-AM62X: cannot built u-boot images

Part Number: PROCESSOR-SDK-AM62X

with processor-sdk v 9.01.00.08:

[linux-devkit]:~/ti-processor-sdk-linux-am62xx-evm-09.01.00.08> make u-boot
===================================
Building U-boot for R5
===================================
mkdir -p /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/u-boot-build/r5
make -j 8 -C /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot* ARCH=arm am62x_evm_r5_defconfig O=/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/u-boot-build/r5
make[1]: Entering directory '/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot-2023.04+gitAUTOINC+b0d717b732-gb0d717b732'
make[2]: Entering directory '/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/u-boot-build/r5'
  HOSTCC  scripts/basic/fixdep
  GEN     Makefile
In file included from /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/linux-devkit/sysroots/aarch64-oe-linux/usr/include/features-time64.h:21,
                 from /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/linux-devkit/sysroots/aarch64-oe-linux/usr/include/features.h:392,
                 from /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/linux-devkit/sysroots/aarch64-oe-linux/usr/include/sys/types.h:25,
                 from /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot-2023.04+gitAUTOINC+b0d717b732-gb0d717b732/scripts/basic/fixdep.c:92:
/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/linux-devkit/sysroots/aarch64-oe-linux/usr/include/bits/timesize.h:23:10: fatal error: bits/timesize-32.h: No such file or directory
   23 | #include <bits/timesize-32.h>
      |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [scripts/Makefile.host:95: scripts/basic/fixdep] Error 1
make[2]: *** [/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot-2023.04+gitAUTOINC+b0d717b732-gb0d717b732/Makefile:492: scripts_basic] Error 2
make[2]: Leaving directory '/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/u-boot-build/r5'
make[1]: *** [Makefile:177: sub-make] Error 2
make[1]: Leaving directory '/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot-2023.04+gitAUTOINC+b0d717b732-gb0d717b732'
make: *** [makerules/Makefile_u-boot:27: u-boot-r5] Error 2
[linux-devkit]:~/ti-processor-sdk-linux-am62xx-evm-09.01.00.08> make u-boot-a53
===================================
Building U-boot for A53
===================================
mkdir -p /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/u-boot-build/a53
make -j 8 -C /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot* ARCH=arm am62x_evm_a53_defconfig O=/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/u-boot-build/a53
make[1]: Entering directory '/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot-2023.04+gitAUTOINC+b0d717b732-gb0d717b732'
make[2]: Entering directory '/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/u-boot-build/a53'
  HOSTCC  scripts/basic/fixdep
  GEN     Makefile
In file included from /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/linux-devkit/sysroots/aarch64-oe-linux/usr/include/features-time64.h:21,
                 from /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/linux-devkit/sysroots/aarch64-oe-linux/usr/include/features.h:392,
                 from /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/linux-devkit/sysroots/aarch64-oe-linux/usr/include/sys/types.h:25,
                 from /home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot-2023.04+gitAUTOINC+b0d717b732-gb0d717b732/scripts/basic/fixdep.c:92:
/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/linux-devkit/sysroots/aarch64-oe-linux/usr/include/bits/timesize.h:23:10: fatal error: bits/timesize-32.h: No such file or directory
   23 | #include <bits/timesize-32.h>
      |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [scripts/Makefile.host:95: scripts/basic/fixdep] Error 1
make[2]: *** [/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot-2023.04+gitAUTOINC+b0d717b732-gb0d717b732/Makefile:492: scripts_basic] Error 2
make[2]: Leaving directory '/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/u-boot-build/a53'
make[1]: *** [Makefile:177: sub-make] Error 2
make[1]: Leaving directory '/home/user/ti-processor-sdk-linux-am62xx-evm-09.01.00.08/board-support/ti-u-boot-2023.04+gitAUTOINC+b0d717b732-gb0d717b732'
make: *** [makerules/Makefile_u-boot:11: u-boot-a53] Error 2
[linux-devkit]:~/ti-processor-sdk-linux-am62xx-evm-09.01.00.08> 

neither of the make u-boot targets work. looks like missing headers but shouldn't they all be included in the SDK installation? using ubuntu 22.04.1 LTS