When building binutils 2.40 from Git it fails when it tries to write a file into gas/doc because the directory is missing.

This is an out-of-source build with a fresh (initially empty) build directory and clean sources.

Version: commit 32778522c7d8777803c88684b8e428ee729f0b22 (tag: binutils-2_40)

Host: Debian 11.5; source-built GCC 12.2.0; Linux kernel; x86_64 CPU
Targets: Linux (Host=Target); AVR-GCC

Configurations tested:
1) ../../binutils/configure --prefix=/usr/local/mydir --disable-nls --enable-gold --enable-gprofng --enable-lto
2) ../../binutils/configure --prefix=$HOME/myavrdir --disable-nls --target=avr

Compilation with "make -j2" fails consistently, e.g.:
make[2]: Entering directory '/home/konrad/src/GCC/build-20220922/binutils/gas'
make  all-recursive
make[3]: Entering directory '/home/konrad/src/GCC/build-20220922/binutils/gas'
Making all in po
make[4]: Entering directory '/home/konrad/src/GCC/build-20220922/binutils/gas/po'
make[4]: Nothing to be done for 'all'.
make[4]: Leaving directory '/home/konrad/src/GCC/build-20220922/binutils/gas/po'
make[4]: Entering directory '/home/konrad/src/GCC/build-20220922/binutils/gas'
  GEN      doc/asconfig.texi
cp: cannot create regular file 'doc/asconfig.texi': No such file or directory
make[4]: *** [Makefile:2234: doc/asconfig.texi] Error 1
make[4]: Leaving directory '/home/konrad/src/GCC/build-20220922/binutils/gas'
make[3]: *** [Makefile:1664: all-recursive] Error 1
make[3]: Leaving directory '/home/konrad/src/GCC/build-20220922/binutils/gas'
make[2]: *** [Makefile:1010: all] Error 2
make[2]: Leaving directory '/home/konrad/src/GCC/build-20220922/binutils/gas'
make[1]: *** [Makefile:5476: all-gas] Error 2
make[1]: *** Waiting for unfinished jobs....

After creating the gas/doc directory in the build tree compilation succeeds as expected.