Makefile crashed while making after pass the ./configure --host=mingw32 - c

Question

Everyone: situation: MacOS with x86_64-w64-mingw32 compiling toolchain I tried to compile GDB for Windows from the source code of GDB. But, after ./configure, I got
/bin/sh ./libtool --tag=CC --mode=link x86_64-w64-mingw32-gcc -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wstack-usage=262144 -Wno-format -I./../zlib -Iincludedir -D__USE_MINGW_ACCESS -release `cat libtool-soversion` -Llibdir -Wl,--stack,12582912 -o libbfd.la -rpath /usr/local/lib archive.lo archures.lo bfd.lo bfdio.lo bfdwin.lo cache.lo coff-bfd.lo compress.lo corefile.lo elf-properties.lo format.lo hash.lo init.lo libbfd.lo linker.lo merge.lo opncls.lo reloc.lo section.lo simple.lo stab-syms.lo stabs.lo syms.lo targets.lo binary.lo ihex.lo srec.lo tekhex.lo verilog.lo `cat ofiles` -L./../zlib -lz
./libtool: line 5208: cd: libdir: No such file or directory
libtool: link: cannot determine absolute directory name of `libdir'
make[4]: *** [libbfd.la] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-bfd] Error 2
I am sure my MingW32 is fully built and capable.
x86_64-w64-mingw32-addr2line x86_64-w64-mingw32-dllwrap x86_64-w64-mingw32-gcc-ranlib x86_64-w64-mingw32-ld.bfd x86_64-w64-mingw32-size
x86_64-w64-mingw32-ar x86_64-w64-mingw32-elfedit x86_64-w64-mingw32-gcov x86_64-w64-mingw32-lto-dump x86_64-w64-mingw32-strings
x86_64-w64-mingw32-as x86_64-w64-mingw32-g++ x86_64-w64-mingw32-gcov-dump x86_64-w64-mingw32-nm x86_64-w64-mingw32-strip
x86_64-w64-mingw32-c++ x86_64-w64-mingw32-gcc x86_64-w64-mingw32-gcov-tool x86_64-w64-mingw32-objcopy x86_64-w64-mingw32-windmc
x86_64-w64-mingw32-c++filt x86_64-w64-mingw32-gcc-10.2.0 x86_64-w64-mingw32-gfortran x86_64-w64-mingw32-objdump x86_64-w64-mingw32-windres
x86_64-w64-mingw32-cpp x86_64-w64-mingw32-gcc-ar x86_64-w64-mingw32-gprof x86_64-w64-mingw32-ranlib
x86_64-w64-mingw32-dlltool x86_64-w64-mingw32-gcc-nm x86_64-w64-mingw32-ld x86_64-w64-mingw32-readelf
I install it via HomeBrew And here is the config for libdir in my Makefile
prefix = /usr/local
exec_prefix = ${prefix}
libdir = ${exec_prefix}/lib
LDFLAGS = -Llibdir
...
"libdir=$(libdir)" \
...
Totally have no idea how to fix this. Any idea? Or if you need some more information to figure it out, just let me know.
And just download the source code of GDB, I think you could duplicate the same scenario.
./libtool: line 5208: cd: libdir: No such file or directory
libtool: link: cannot determine absolute directory name of `libdir'
make[4]: *** [libbfd.la] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-bfd] Error 2
make: *** [all] Error 2

Answer 1

As the command line and error message say, you give libtool not the right path.
The command line contains -Llibdir and the error message says "cannot determine absolute directory name of 'libdir'".
So you wrote your Makefile to use libdir literally and not as the variable as it should be. Change it into:
LDFLAGS = -L$(libdir)
or
LDFLAGS = -L${libdir}
There is no real difference between parentheses and braces, just don't mix them up. Helpful links are:
The difference between parentheses and curly braces in GNU Make and
What's the difference between parenthesis $() and curly bracket ${} syntax in Makefile?