bug#29402: Failure to cross-compile GNU Hello for armhf-linux target

[Chris Marusich]

Hi,

On my x86_64 GuixSD machine, using Guix commit
77f921587c6b784e84b98a9f2e9c821f73114340, GNU Hello fails to build for
the armhf-linux target.  It builds for the i686-linux, aarch64-linux,
and mip64el-linux targets.

I'm trying to build it using the following command, invoked from the
Guix source tree:

  ./pre-inst-env guix build --no-substitutes --target=armhf-linux hello

Here are the last few lines of output:

--8<---------------cut here---------------start------------->8---
starting phase `configure'
source directory: 
"/tmp/guix-build-binutils-cross-armhf-linux-2.28.drv-0/binutils-2.28" (relative 
from build: ".")
build directory: 
"/tmp/guix-build-binutils-cross-armhf-linux-2.28.drv-0/binutils-2.28"
configure flags: 
("CONFIG_SHELL=/gnu/store/kpxi8h3669afr9r1bgvaf9ij3y4wdyyn-bash-minimal-4.4.12/bin/bash"
 
"SHELL=/gnu/store/kpxi8h3669afr9r1bgvaf9ij3y4wdyyn-bash-minimal-4.4.12/bin/bash"
 
"--prefix=/gnu/store/gaap2chgcwkhk6z0vp4z47cy6rsxds1q-binutils-cross-armhf-linux-2.28"
 "--enable-fast-install" "--build=x86_64-unknown-linux-gnu" 
"--target=armhf-linux" "--with-sysroot=/" "LDFLAGS=-static-libgcc" 
"--with-lib-path=/no-ld-lib-path" "--enable-install-libbfd" 
"--enable-deterministic-archives")
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... Invalid configuration `armhf-linux': machine 
`armhf' not recognized
configure: error: 
/gnu/store/kpxi8h3669afr9r1bgvaf9ij3y4wdyyn-bash-minimal-4.4.12/bin/bash 
./config.sub armhf-linux failed
phase `configure' failed after 0.2 seconds
builder for 
`/gnu/store/3gqs8b7ch1w8xsc2adjnn8v7gm2ls8s1-binutils-cross-armhf-linux-2.28.drv'
 failed with exit code 1
@ build-failed 
/gnu/store/3gqs8b7ch1w8xsc2adjnn8v7gm2ls8s1-binutils-cross-armhf-linux-2.28.drv 
- 1 builder for 
`/gnu/store/3gqs8b7ch1w8xsc2adjnn8v7gm2ls8s1-binutils-cross-armhf-linux-2.28.drv'
 failed with exit code 1
cannot build derivation 
`/gnu/store/qhqngzgc0q7c1s3l25sm5y7mhqp99ciy-hello-2.10.drv': 1 dependencies 
couldn't be built
guix build: error: build failed: build of 
`/gnu/store/qhqngzgc0q7c1s3l25sm5y7mhqp99ciy-hello-2.10.drv' failed
--8<---------------cut here---------------end--------------->8---

It looks like the configure phase of the derivation that builds
binutils-cross-armhf-linux-2.28 failed because "armhf" is supposedly not
a recognized machine.  However, "armhf-linux" is listed as a supported
platform in the Guix manual ((guix) GNU Distribution), so I expected
this to work.  What's going on here?

GNU Hello successfully builds on my machine for the x86_64-linux,
i686-linux, aarch64-linux, and mips64el-linux platforms (i.e., all of
the other platforms listed as supported in the Guix manual).

-- 
Chris

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