How to install a cross-compile toolchain?

[Vivien Kraus]

Hello guix!

Trying to understand why gmp fails when cross-compiled as mingw (it
cannot use g++...), I wanted to know if I could get a guix environment,
but with cross-compiled dependencies.  Or at least install a
cross-compiler.

guix environment does not recognize --target=i686-w64-mingw32.

It has a --system, but it seems like a system to bootstrap guix: it does
not work with i686-w64-mingw32 (no linker) nor i686-mingw (guix
environment: error: could not find bootstrap binary 'tar' for system
'i686-mingw')

I cannot find any package that could provide i686-w64-mingw32-
cross-tools when in an environment.

Outside of an environment, I can't seem to find how to install a
cross-compiler.  I tried to install mingw-w64-i686, and I cannot find
any option to guix install that would let me change the target of
gcc-toolchain.

How would you install i686-w64-mingw32-gcc?

Best regards,

Vivien

Cannot build libdbi-drivers: "dbd_mysql.c:54:10: fatal error: mysql.h: No such file or directory"

[Jorge P. de Morais Neto]

4fqq5isxpmlcx215vqwlbj7ig8vs5q-libdbi-drivers-0.9.0.drv.bz2
Description: Binary data

For more than a week I have been unable to update Gnucash.  One of its
dependencies, libdbi-drivers, fails to build.  I have attached the build
log.

Regards
-- 
- 
- I am Brazilian.  I hope my English is correct and I welcome feedback.
- Please adopt free formats like PDF, ODF, Org, LaTeX, Opus, WebM and 7z.
- Free/libre software for Replicant, LineageOS and Android: https://f-droid.org
- [[https://www.gnu.org/philosophy/free-sw.html][What is free software?]]