This is neccessary for XeTeX to find the fonts distributed with
TeXLive.
The fontconfig file generated by makeFontsConf is almost identical to the one
from the fontconfig package and /etc/fonts/fonts.conf on NixOS -- it only adds
the specified font directories. In particular this means that all the actual
configuration files in /etc/fonts/conf.d are still included and there also is a
/usr/share/fonts font directory entry for use with non-NixOS linuxes, so
it's unlikely that this breaks someone's setup.
The 'non-relocated' packages of TeX Live expect to live in
TEXMFROOT/texmf-dist (e.g. to search for perl modules). This change
builds TEXMFROOT instead of just TEXMFDIST to accommodate those
packages, and obviate the need for patching fmtutil.
prior to this change, the build fails because the documentation cannot be
generated due to a missing latex package (probably fallout from a texlive
update):
! LaTeX Error: File `hypdoc.sty' not found.
Type X to quit or <RETURN> to proceed,
or enter new name. (Default extension: sty)
Enter file name:
! Emergency stop.
<read *>
l.29 \begin{document}
^^M
! ==> Fatal error occurred, no output PDF file produced!
Transcript written on preview.log.
make[1]: *** [Makefile:91: preview.pdf] Error 1
make[1]: Leaving directory '/build/auctex-12.3/latex'
make: *** [Makefile:219: texmf] Error 2
This commit gets pkgsCross.*.pdfgrep a bit farther. It still fails
with the error below; if anybody recognizes it I'd appreciate a hint.
```
pdfgrep-aarch64-unknown-linux-gnu> aarch64-unknown-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I.. -I/nix/store/9kzvsy9ybsy2zvivz62ia881q9djf734-poppler-glib-aarch64-unknown-linux-gnu-23.02.0-dev/include/poppler/cpp -I/nix/store/6ib0mcvv0ascsydhpja2a1kcnwvxqnfp-pcre-aarch64-unknown-linux-gnu-8.45-dev/include -I/nix/store/yyyy71mx8j85hh1xknfy2nqgw4ihfchr-libgcrypt-aarch64-unknown-linux-gnu-1.10.1-dev/include -I/nix/store/mqx4d57dva5y5kg91a9pnlipdc6bfcxc-libgpg-error-aarch64-unknown-linux-gnu-1.46-dev/include -g -O2 -c -o pdfgrep.o pdfgrep.cc
pdfgrep-aarch64-unknown-linux-gnu> In file included from /nix/store/cha4mfjki3pv42xnfsfrgppr3w1zmh27-aarch64-unknown-linux-gnu-stage-final-gcc-12.2.0/aarch64-unknown-linux-gnu/include/c++/12.2.0/stdlib.h:36,
pdfgrep-aarch64-unknown-linux-gnu> from pdfgrep.cc:24:
pdfgrep-aarch64-unknown-linux-gnu> /nix/store/cha4mfjki3pv42xnfsfrgppr3w1zmh27-aarch64-unknown-linux-gnu-stage-final-gcc-12.2.0/aarch64-unknown-linux-gnu/include/c++/12.2.0/cstdlib:151:11: error: 'malloc' has not been declared in '::'
pdfgrep-aarch64-unknown-linux-gnu> 151 | using ::malloc;
pdfgrep-aarch64-unknown-linux-gnu> | ^~~~~~
pdfgrep-aarch64-unknown-linux-gnu> /nix/store/cha4mfjki3pv42xnfsfrgppr3w1zmh27-aarch64-unknown-linux-gnu-stage-final-gcc-12.2.0/aarch64-unknown-linux-gnu/include/c++/12.2.0/cstdlib:164:11: error: 'realloc' has not been declared in '::'
pdfgrep-aarch64-unknown-linux-gnu> 164 | using ::realloc;
pdfgrep-aarch64-unknown-linux-gnu> | ^~~~~~~
pdfgrep-aarch64-unknown-linux-gnu> /nix/store/cha4mfjki3pv42xnfsfrgppr3w1zmh27-aarch64-unknown-linux-gnu-stage-final-gcc-12.2.0/aarch64-unknown-linux-gnu/include/c++/12.2.0/stdlib.h:65:12: error: 'malloc' has not been declared in 'std'
pdfgrep-aarch64-unknown-linux-gnu> 65 | using std::malloc;
pdfgrep-aarch64-unknown-linux-gnu> | ^~~~~~
pdfgrep-aarch64-unknown-linux-gnu> /nix/store/cha4mfjki3pv42xnfsfrgppr3w1zmh27-aarch64-unknown-linux-gnu-stage-final-gcc-12.2.0/aarch64-unknown-linux-gnu/include/c++/12.2.0/stdlib.h:73:12: error: 'realloc' has not been declared in 'std'
pdfgrep-aarch64-unknown-linux-gnu> 73 | using std::realloc;
pdfgrep-aarch64-unknown-linux-gnu> | ^~~~~~~
pdfgrep-aarch64-unknown-linux-gnu> make[2]: *** [Makefile:413: pdfgrep.o] Error 1
pdfgrep-aarch64-unknown-linux-gnu> make[2]: Leaving directory '/build/pdfgrep-2.1.2/src'
pdfgrep-aarch64-unknown-linux-gnu> make[1]: *** [Makefile:388: all-recursive] Error 1
pdfgrep-aarch64-unknown-linux-gnu> make[1]: Leaving directory '/build/pdfgrep-2.1.2'
pdfgrep-aarch64-unknown-linux-gnu> make: *** [Makefile:329: all] Error 2
```
