Re: gcc-10-source cross build for xtensa with D enabled fails due to missing texi macro. patch included

[Witold Baryluk <witold.baryluk@gmail.com>]

So, it does appear that /usr/src/gcc-10/gcc-10.2.0-dfsg.tar.xz from
gcc-10-source 10.2.1-6 ,
doesn't have these patches applied. And the patches need to be applied
manually after unpacking.

/usr/src/gcc-10/debian/README.source provides some information, but it
is a bit tricky:

user@debian:~/xtensa-d/gcc-xtensa-lx106-8$ /usr/src/gcc-10/debian/rules patch
/usr/src/gcc-10/debian/rules:21: debian/rules.patch: No such file or directory
make: *** No rule to make target 'debian/rules.patch'.  Stop.
user@debian:~/xtensa-d/gcc-xtensa-lx106-8

Try to call make -f without changing directory:

user@debian:~/xtensa-d/gcc-xtensa-lx106-8$ make -f
/usr/src/gcc-10/debian/rules.patch patch
make: Nothing to be done for 'patch'.
user@debian:~/xtensa-d/gcc-xtensa-lx106-8$

But, I think this is simply because then debian/rules.patch runs
without proper variables from rules.defs applied, and $(patch_stamp)
is empty string.

Not sure how to do all the patches, not that xtensa really need most
of them. Just the gdc-texinfo.patch