Compilation Error

[styro2000]

Hello
i would like to compile the mt32-pi and running in to problems...
platform: x86_64 xubuntu
compiler: gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf

git clone --recursive https://github.com/dwhinham/mt32-pi.git
in mt32-pi/external/circle-stdlib/
./configure -r 4 -p /home/styro/BareMetal/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf/bin/aarch64-none-elf-
make
builds the circle-stuff...
mt32-pi/external/circle-stdlib/libs/circle/lib/libcircle.a is there...

in mt32-pi/Config.mk changes:

AARCH64_HOME?=$(HOME)/BareMetal/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf

Valid options: pi3, pi3-64, pi4, pi4-64

BOARD?=pi4-64
HDMI_CONSOLE?=1

make seems to build fluidsynth and munt (libfluidsynth.a & libmt32emu.a are generated)

and then this happens...

make[1]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-fluidsynth'
make[1]: Entering directory '/home/styro/BareMetal/mt32-pi'
CPP src/config.o
CPP src/control/control.o
CPP src/control/mister.o
CPP src/control/rotaryencoder.o
CPP src/control/simplebuttons.o
CPP src/control/simpleencoder.o
CPP src/kernel.o
In file included from include/kernel.h:36,
from src/kernel.cpp:24:
include/mt32pi.h:68:34: error: expected class-name before ',' token
68 | class CMT32Pi : CMultiCoreSupport, CPower, CMIDIParser, CAppleMIDIHandler
| ^
In file included from include/kernel.h:36,
from src/kernel.cpp:24:
include/mt32pi.h:72:10: error: 'virtual CMT32Pi::~CMT32Pi()' marked 'override', but does not override
72 | virtual ~CMT32Pi() override;
| ^
include/mt32pi.h:76:15: error: 'virtual void CMT32Pi::Run(unsigned int)' marked 'override', but does not override
76 | virtual void Run(unsigned nCore) override;
| ^~~
make[1]: *** [/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/Rules.mk:143: src/kernel.o] Error 1
make[1]: Leaving directory '/home/styro/BareMetal/mt32-pi'
make: *** [Makefile:110: all] Error 2

many thanks for some help and keep up the excellent work!
all the best
styro

[dwhinham]

./configure -r 4 -p /home/styro/BareMetal/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf/bin/aarch64-none-elf- make builds the circle-stuff... mt32-pi/external/circle-stdlib/libs/circle/lib/libcircle.a is there...

Don't do that; Circle won't be built correctly.

Do make veryclean from the repo root to fix all that and then just compile with make BOARD=pi4-64. No need to mess around inside the subdirectories.

[styro2000]

Thanks for the quick answer! Unfortunately, it doesn't work,

:~/BareMetal/mt32-pi$ make veryclean
:~/BareMetal/mt32-pi$ make BOARD=pi4-64
Configuring for Raspberry Pi 4 (64 bit)
RASPBERRYPI=4
TOOLPREFIX=aarch64-none-elf-
CIRCLE_BUILD=1
CIRCLE_QEMU=0
FLOAT_ABI=hard
NEWLIB_BUILD=1
RASPBERRYPI=4
STDLIB_SUPPORT=3
NEWLIB_INSTALL_DIR=/home/styro/BareMetal/mt32-pi/external/circle-stdlib/install
NEWLIB_BUILD_DIR=/home/styro/BareMetal/mt32-pi/external/circle-stdlib/build/circle-newlib
DEBUG=0
Remaining arguments:
Error: Invalid toolchain prefix, exiting
TOOLPREFIX is "aarch64-none-elf-"
patching file include/circle/usb/usbdevicefactory.h
patching file lib/usb/Makefile
patching file lib/usb/usbdevicefactory.cpp
make[1]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib'
cd libs/circle && ./makeall --nosample
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/tools'
  TOOL  converttool
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/tools'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib'
  CPP   actled.o
  CPP   alloc.o
  CPP   assert.o
  CPP   bcmframebuffer.o
  CPP   bcmmailbox.o
  CPP   bcmpropertytags.o
  CPP   bcmwatchdog.o
  CPP   chargenerator.o
  CPP   classallocator.o
  CPP   cputhrottle.o
  CPP   debug.o
  AS    delayloop.o
  CPP   device.o
  CPP   devicenameservice.o
  CPP   dmachannel.o
  CPP   dmasoundbuffers.o
  CPP   gpioclock.o
  CPP   gpiomanager.o
  CPP   gpiopin.o
  CPP   gpiopinfiq.o
  CPP   i2cmaster.o
  CPP   i2cslave.o
  CPP   hdmisoundbasedevice.o
  CPP   i2ssoundbasedevice.o
  CPP   koptions.o
  CPP   logger.o
  CPP   machineinfo.o
  CPP   multicore.o
  CPP   nulldevice.o
  CPP   ptrarray.o
  CPP   ptrlist.o
  CPP   pwmoutput.o
  CPP   pwmsoundbasedevice.o
  CPP   pwmsounddevice.o
  CPP   qemu.o
  CPP   screen.o
  CPP   serial.o
  CPP   soundbasedevice.o
  CPP   spimaster.o
  CPP   spimasteraux.o
  CPP   spimasterdma.o
  CPP   spinlock.o
  CPP   string.o
  CPP   sysinit.o
  CPP   time.o
  CPP   timer.o
  CPP   tracer.o
  CPP   usertimer.o
  CPP   util.o
  AS    util_fast.o
  CPP   virtualgpiopin.o
  CPP   chainboot.o
  CPP   macaddress.o
  CPP   netdevice.o
  CPP   new.o
  CPP   heapallocator.o
  CPP   pageallocator.o
  AS    setjmp.o
  CPP   numberpool.o
  CPP   latencytester.o
  CPP   writebuffer.o
  CPP   2dgraphics.o
  CPP   exceptionhandler64.o
  AS    exceptionstub64.o
  CPP   memory64.o
  AS    startup64.o
  CPP   synchronize64.o
  CPP   translationtable64.o
  CPP   bcm54213.o
  CPP   bcmpciehostbridge.o
  CPP   bcmrandom200.o
  CPP   interruptgic.o
  CPP   dma4channel.o
  CPP   devicetreeblob.o
  AR    libcircle.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/usb'
  CPP   lan7800.o
  CPP   smsc951x.o
  CPP   usbbluetooth.o
  CPP   usbcdcethernet.o
  CPP   usbconfigparser.o
  CPP   usbdevice.o
  CPP   usbdevicefactory.o
  CPP   usbendpoint.o
  CPP   usbfunction.o
  CPP   usbhiddevice.o
  CPP   usbhostcontroller.o
  CPP   usbkeyboard.o
  CPP   usbmassdevice.o
  CPP   usbmidi.o
  CPP   usbrequest.o
  CPP   usbstandardhub.o
  CPP   usbstring.o
  CPP   usbserial.o
  CPP   usbserialch341.o
  CPP   usbserialcp2102.o
  CPP   usbserialpl2303.o
  CPP   usbserialft231x.o
  CPP   usbserialcdc.o
  CPP   usbtouchscreen.o
  CPP   xhcicommandmanager.o
  CPP   xhcidevice.o
  CPP   xhciendpoint.o
  CPP   xhcieventmanager.o
  CPP   xhcimmiospace.o
  CPP   xhciring.o
  CPP   xhciroothub.o
  CPP   xhcirootport.o
  CPP   xhcisharedmemallocator.o
  CPP   xhcislotmanager.o
  CPP   xhciusbdevice.o
  AR    libusb.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/usb'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/input'
  CPP   keyboardbehaviour.o
  CPP   keymap.o
  CPP   mousebehaviour.o
  CPP   mouse.o
  CPP   touchscreen.o
  CPP   rpitouchscreen.o
  CPP   console.o
  CPP   keyboardbuffer.o
  CPP   linediscipline.o
  AR    libinput.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/input'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/fs'
  CPP   partition.o
  CPP   partitionmanager.o
  AR    libfs.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/fs'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/fs/fat'
  CPP   fatfs.o
  CPP   fatcache.o
  CPP   fatinfo.o
  CPP   fat.o
  CPP   fatdir.o
  AR    libfatfs.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/fs/fat'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/sched'
  CPP   task.o
  CPP   scheduler.o
  AS    taskswitch.o
  CPP   synchronizationevent.o
  CPP   mutex.o
  CPP   semaphore.o
  AR    libsched.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/sched'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/net'
  CPP   netsubsystem.o
  CPP   nettask.o
  CPP   netsocket.o
  CPP   socket.o
  CPP   transportlayer.o
  CPP   networklayer.o
  CPP   linklayer.o
  CPP   netdevlayer.o
  CPP   phytask.o
  CPP   arphandler.o
  CPP   icmphandler.o
  CPP   routecache.o
  CPP   netconnection.o
  CPP   udpconnection.o
  CPP   tcpconnection.o
  CPP   retransmissionqueue.o
  CPP   retranstimeoutcalc.o
  CPP   tcprejector.o
  CPP   netconfig.o
  CPP   ipaddress.o
  CPP   netqueue.o
  CPP   checksumcalculator.o
  CPP   dnsclient.o
  CPP   ntpclient.o
  CPP   mqttclient.o
  CPP   mqttsendpacket.o
  CPP   mqttreceivepacket.o
  CPP   dhcpclient.o
  CPP   ntpdaemon.o
  CPP   httpdaemon.o
  CPP   httpclient.o
  CPP   tftpdaemon.o
  CPP   syslogdaemon.o
  AR    libnet.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/lib/net'
make -C libs/circle/addon/SDCard
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/SDCard'
  CPP   emmc.o
  CPP   mmchost.o
  CPP   sdhost.o
  AR    libsdcard.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/SDCard'
make -C libs/circle/addon/fatfs
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/fatfs'
  CC    ff.o
  CPP   diskio.o
  CPP   ffsystem.o
  CC    ffunicode.o
  AR    libfatfs.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/fatfs'
make -C libs/circle/addon/qemu
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/qemu'
  CPP   qemuhostfile.o
  AR    libqemusupport.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/qemu'
cd libs/circle/addon/wlan && ./makeall --nosample
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/wlan'
  CPP   bcm4343.o
  CC    ether4330.o
  CC    emmc.o
  CPP   p9arch.o
  CPP   p9chan.o
  CPP   p9cmd.o
  CPP   p9error.o
  CPP   p9ether.o
  CPP   p9proc.o
  CPP   p9util.o
  AR    libwlan.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/wlan'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/wlan/hostap/wpa_supplicant'
  CC    blacklist.o
  CC    config.o
  CC    config_file_circle.o
  CC    events.o
  CPP   main_circle.o
  CC    notify.o
  CC    scan.o
  CC    wpa_supplicant.o
  CC    wpas_glue.o
  CPP   wpasupplicant.o
  CC    ../src/common/wpa_common.o
  CC    ../src/crypto/aes-internal-dec.o
  CC    ../src/crypto/aes-internal.o
  CC    ../src/crypto/aes-unwrap.o
  CC    ../src/crypto/md5-internal.o
  CC    ../src/crypto/md5.o
  CC    ../src/crypto/rc4.o
  CC    ../src/crypto/sha1-internal.o
  CC    ../src/crypto/sha1-pbkdf2.o
  CC    ../src/crypto/sha1.o
  CC    ../src/crypto/tls_none.o
  CC    ../src/drivers/drivers.o
  CPP   ../src/drivers/driver_circle.o
  CC    ../src/drivers/scan_helpers.o
  CC    ../src/eapol_supp/eapol_supp_sm.o
  CC    ../src/eap_common/eap_common.o
  CC    ../src/eap_peer/eap.o
  CC    ../src/eap_peer/eap_methods.o
  CPP   ../src/l2_packet/l2_packet_circle.o
  CC    ../src/rsn_supp/pmksa_cache.o
  CC    ../src/rsn_supp/preauth.o
  CC    ../src/rsn_supp/wpa.o
  CC    ../src/rsn_supp/wpa_ie.o
  CC    ../src/utils/base64.o
  CC    ../src/utils/common.o
  CC    ../src/utils/eloop_circle.o
  CPP   ../src/utils/os_circle.o
  CC    ../src/utils/wpa_debug.o
  CC    ../src/utils/wpabuf.o
  AR    libwpa_supplicant.a
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/addon/wlan/hostap/wpa_supplicant'
CPPFLAGS_FOR_TARGET='' \
CC_FOR_TARGET='' \
CXX_FOR_TARGET='' \
GCC_FOR_TARGET='' \
AR_FOR_TARGET='' \
AS_FOR_TARGET='' \
LD_FOR_TARGET='' \
RANLIB_FOR_TARGET='' \
OBJCOPY_FOR_TARGET='' \
OBJDUMP_FOR_TARGET='' \
make -C  && \
make -C  install
make: option requires an argument -- 'C'
Usage: make [options] [target] ...
Options:
  -b, -m                      Ignored for compatibility.
  -B, --always-make           Unconditionally make all targets.
  -C DIRECTORY, --directory=DIRECTORY
                              Change to DIRECTORY before doing anything.
  -d                          Print lots of debugging information.
  --debug[=FLAGS]             Print various types of debugging information.
  -e, --environment-overrides
                              Environment variables override makefiles.
  --eval=STRING               Evaluate STRING as a makefile statement.
  -f FILE, --file=FILE, --makefile=FILE
                              Read FILE as a makefile.
  -h, --help                  Print this message and exit.
  -i, --ignore-errors         Ignore errors from recipes.
  -I DIRECTORY, --include-dir=DIRECTORY
                              Search DIRECTORY for included makefiles.
  -j [N], --jobs[=N]          Allow N jobs at once; infinite jobs with no arg.
  -k, --keep-going            Keep going when some targets can't be made.
  -l [N], --load-average[=N], --max-load[=N]
                              Don't start multiple jobs unless load is below N.
  -L, --check-symlink-times   Use the latest mtime between symlinks and target.
  -n, --just-print, --dry-run, --recon
                              Don't actually run any recipe; just print them.
  -o FILE, --old-file=FILE, --assume-old=FILE
                              Consider FILE to be very old and don't remake it.
  -O[TYPE], --output-sync[=TYPE]
                              Synchronize output of parallel jobs by TYPE.
  -p, --print-data-base       Print make's internal database.
  -q, --question              Run no recipe; exit status says if up to date.
  -r, --no-builtin-rules      Disable the built-in implicit rules.
  -R, --no-builtin-variables  Disable the built-in variable settings.
  -s, --silent, --quiet       Don't echo recipes.
  -S, --no-keep-going, --stop
                              Turns off -k.
  -t, --touch                 Touch targets instead of remaking them.
  --trace                     Print tracing information.
  -v, --version               Print the version number of make and exit.
  -w, --print-directory       Print the current directory.
  --no-print-directory        Turn off -w, even if it was turned on implicitly.
  -W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE
                              Consider FILE to be infinitely new.
  --warn-undefined-variables  Warn when an undefined variable is referenced.

This program built for x86_64-pc-linux-gnu
Report bugs to <[email protected]>
make[1]: *** [Makefile:17: newlib] Error 2
make[1]: Leaving directory '/home/styro/BareMetal/mt32-pi/external/circle-stdlib'
make[1]: Entering directory '/home/styro/BareMetal/mt32-pi/build-munt'
make[2]: Entering directory '/home/styro/BareMetal/mt32-pi/build-munt'
make[3]: Entering directory '/home/styro/BareMetal/mt32-pi/build-munt'
Scanning dependencies of target mt32emu
make[3]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-munt'
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make[3]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-munt'
[100%] Built target mt32emu
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-munt'
make[1]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-munt'
patching file CMakeLists.txt
patching file src/CMakeLists.txt
patching file src/sfloader/fluid_sfont.c
patching file src/synth/fluid_synth.c
patching file src/synth/fluid_synth.h
patching file src/utils/fluid_settings.c
patching file src/utils/fluid_sys.c
patching file src/utils/fluid_sys.h
patching file src/utils/fluidsynth_priv.h
**************************************************************


make[1]: Entering directory '/home/styro/BareMetal/mt32-pi/build-fluidsynth'
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Scanning dependencies of target gentables
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[  2%] Creating directories for 'gentables'
[  5%] No download step for 'gentables'
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[ 13%] Performing configure step for 'gentables'
-- The C compiler identification is GNU 9.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/styro/BareMetal/mt32-pi/build-fluidsynth/src/gentables
[ 16%] Performing build step for 'gentables'
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Scanning dependencies of target libfluidsynth-OBJ
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/home/styro/BareMetal/mt32-pi/external/fluidsynth/src/sfloader/fluid_defsfont.c: In function 'fluid_defsfont_load_all_sampledata':
/home/styro/BareMetal/mt32-pi/external/fluidsynth/src/sfloader/fluid_defsfont.c:398: warning: ignoring '#pragma omp single' [-Wunknown-pragmas]
  398 |     #pragma omp single
      | 
/home/styro/BareMetal/mt32-pi/external/fluidsynth/src/sfloader/fluid_defsfont.c:407: warning: ignoring '#pragma omp task' [-Wunknown-pragmas]
  407 |             #pragma omp task firstprivate(sample,sfdata,defsfont) shared(sample_parsing_result) default(none)
      | 
/home/styro/BareMetal/mt32-pi/external/fluidsynth/src/sfloader/fluid_defsfont.c:411: warning: ignoring '#pragma omp critical' [-Wunknown-pragmas]
  411 |                     #pragma omp critical
      | 
/home/styro/BareMetal/mt32-pi/external/fluidsynth/src/sfloader/fluid_defsfont.c:426: warning: ignoring '#pragma omp task' [-Wunknown-pragmas]
  426 |             #pragma omp task firstprivate(sample, defsfont) default(none)
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make[4]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-fluidsynth'
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make[4]: Entering directory '/home/styro/BareMetal/mt32-pi/build-fluidsynth'
Scanning dependencies of target libfluidsynth
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make[4]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-fluidsynth'
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make[3]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-fluidsynth'
make[2]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-fluidsynth'
make[1]: Leaving directory '/home/styro/BareMetal/mt32-pi/build-fluidsynth'
make[1]: Entering directory '/home/styro/BareMetal/mt32-pi'
  CPP   src/config.o
  CPP   src/control/control.o
  CPP   src/control/mister.o
  CPP   src/control/rotaryencoder.o
  CPP   src/control/simplebuttons.o
  CPP   src/control/simpleencoder.o
  CPP   src/kernel.o
  CPP   src/lcd/drivers/hd44780.o
  CPP   src/lcd/drivers/hd44780fourbit.o
  CPP   src/lcd/drivers/hd44780i2c.o
  CPP   src/lcd/drivers/sh1106.o
  CPP   src/lcd/drivers/ssd1306.o
  CPP   src/lcd/ui.o
  CPP   src/main.o
  CPP   src/midimonitor.o
  CPP   src/midiparser.o
  CPP   src/mt32pi.o
  CPP   src/net/applemidi.o
  CPP   src/net/ftpdaemon.o
  CPP   src/net/ftpworker.o
  CPP   src/pisound.o
  CPP   src/power.o
  CPP   src/rommanager.o
  CPP   src/soundfontmanager.o
  CPP   src/synth/mt32synth.o
  CPP   src/synth/soundfontsynth.o
  CPP   src/zoneallocator.o
  CC    /home/styro/BareMetal/mt32-pi/external/inih/ini.o
  LD    kernel8-rpi4.elf
/home/styro/BareMetal/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf/bin/aarch64-none-elf-ld: cannot find /home/styro/BareMetal/mt32-pi/external/circle-stdlib/install//lib/libm.a: No such file or directory
/home/styro/BareMetal/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf/bin/aarch64-none-elf-ld: cannot find /home/styro/BareMetal/mt32-pi/external/circle-stdlib/install//lib/libc.a: No such file or directory
/home/styro/BareMetal/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf/bin/aarch64-none-elf-ld: cannot find /home/styro/BareMetal/mt32-pi/external/circle-stdlib/install//lib/libcirclenewlib.a: No such file or directory
make[1]: *** [/home/styro/BareMetal/mt32-pi/external/circle-stdlib/libs/circle/Rules.mk:156: kernel8-rpi4.img] Error 1
make[1]: Leaving directory '/home/styro/BareMetal/mt32-pi'
make: *** [Makefile:110: all] Error 2

it seems that building the circle-stdlib-stuff makes some trouble, thats why i tryed it seperatly...

[styro2000]

as really ugly test-hack i hardcoded my

TOOLPREFIX=/home/styro/BareMetal/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf/bin/aarch64-none-elf-

into mt32-pi/external/circle-stdlib/configure line 70
and it compiles & links without errors!
Somehow the TOOLPREFIX-Path gets lost while making the circle-stdlib libs....