relocation R_X86_64_32S against `.rodata' can not be used when making a PIE object

[zhangbo-miuNEST]

Master branch code can't be compiled on Ubuntu 20.04.

Error msg is :
/usr/bin/ld: ../boot/a6le/kernel.o: relocation R_X86_64_32S against `.rodata' can not be used when making a PIE object; recompile with -fPIE

if I change "./configure" to "CFLAGS=-fPIE ./configure" or "CFLAGS=-fPIC ./configure", the same error.

happy@ubuntu:~/ChezScheme$ ./configure
happy@ubuntu:~/ChezScheme$ make -j4
(cd a6le && make build)
(cd c && make)
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib statics.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib segment.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib alloc.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib symbol.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib intern.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib gcwrapper.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib gc-ocd.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib gc-oce.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib number.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib schsig.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib io.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib new-io.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib print.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib fasl.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib stats.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib foreign.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib prim.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib prim5.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib flushcache.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib schlib.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib thread.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib expeditor.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib scheme.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib compress-io.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib i3le.c
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -c -DX86_64 -I../boot/a6le -I../zlib -I../lz4/lib main.c
cp -p main.o ../boot/a6le/main.o
ld -melf_x86_64 -r -X -o ../boot/a6le/kernel.o statics.o segment.o alloc.o symbol.o intern.o gcwrapper.o gc-ocd.o gc-oce.o number.o schsig.o io.o new-io.o print.o fasl.o stats.o foreign.o prim.o prim5.o flushcache.o schlib.o thread.o expeditor.o scheme.o compress-io.o i3le.o ../zlib/libz.a ../lz4/lib/liblz4.a
gcc  -m64 -msse2 -Wpointer-arith -Wall -Wextra -Werror -Wno-implicit-fallthrough -O2  -rdynamic -o ../bin/a6le/scheme ../boot/a6le/main.o ../boot/a6le/kernel.o -lm -ldl -lncurses -lrt -luuid  
/usr/bin/ld: ../boot/a6le/kernel.o: relocation R_X86_64_32S against `.rodata' can not be used when making a PIE object; recompile with -fPIE
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:40: ../bin/a6le/scheme] Error 1
make[1]: *** [Makefile:21: build] Error 2
make: *** [Makefile:20: build] Error 2
happy@ubuntu:~/ChezScheme$ uname -a
Linux ubuntu 5.4.0-37-generic #41-Ubuntu SMP Wed Jun 3 18:57:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
happy@ubuntu:~/ChezScheme$ gcc --version
gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0
Copyright (C) 2019 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.

happy@ubuntu:~/ChezScheme$ ld --version
GNU ld (GNU Binutils for Ubuntu) 2.34
Copyright (C) 2020 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.
happy@ubuntu:~/ChezScheme$ 

[zhangbo-miuNEST]

Finally my build succeeded with the following configuration:
LDFLAGS=-no-pie ./configure