bug#31910: hydra doesn't build

[Clément Lassieur]

Hi,

Hydra doesn't build.  This is the end of the output:

--8<---------------cut here---------------start------------->8---
hydra-eval-jobs.cc:13:26: fatal error: common-opts.hh: No such file or directory
compilation terminated.
make[3]: *** [Makefile:414: hydra-eval-jobs.o] Error 1
make[3]: Leaving directory 
'/tmp/guix-build-hydra-20151030.1ff48da.drv-0/hydra-20151030.1ff48da/src/hydra-eval-jobs'
make[2]: *** [Makefile:364: all-recursive] Error 1
make[2]: Leaving directory 
'/tmp/guix-build-hydra-20151030.1ff48da.drv-0/hydra-20151030.1ff48da/src'
make[1]: *** [Makefile:413: all-recursive] Error 1
make[1]: Leaving directory 
'/tmp/guix-build-hydra-20151030.1ff48da.drv-0/hydra-20151030.1ff48da'
make: *** [Makefile:343: all] Error 2
Backtrace:
           4 (primitive-load "/gnu/store/vr8ymgan259mnv5b35g6zclkdah…")
In ice-9/eval.scm:
   191:35  3 (_ _)
In srfi/srfi-1.scm:
    640:9  2 (for-each #<procedure 9ea600 at /gnu/store/f95ghy8mx00…> …)
In 
/gnu/store/f95ghy8mx00fc22nrvswvnpqlfdkf2nk-module-import/guix/build/gnu-build-system.scm:
   799:31  1 (_ _)
In 
/gnu/store/f95ghy8mx00fc22nrvswvnpqlfdkf2nk-module-import/guix/build/utils.scm:
    616:6  0 (invoke _ . _)

/gnu/store/f95ghy8mx00fc22nrvswvnpqlfdkf2nk-module-import/guix/build/utils.scm:616:6:
 In procedure invoke:
Throw to key `srfi-34' with args `(#<condition &invoke-error [program: "make" 
arguments: ("-j" "32") exit-status: 2 term-signal: #f stop-signal: #f] 
9e2fc0>)'.
builder for 
`/gnu/store/ldxim989kymbk57a6rr6jik8n73xq184-hydra-20151030.1ff48da.drv' failed 
with exit code 1
@ build-failed 
/gnu/store/ldxim989kymbk57a6rr6jik8n73xq184-hydra-20151030.1ff48da.drv - 1 
builder for 
`/gnu/store/ldxim989kymbk57a6rr6jik8n73xq184-hydra-20151030.1ff48da.drv' failed 
with exit code 1
guix build: error: build failed: build of 
`/gnu/store/ldxim989kymbk57a6rr6jik8n73xq184-hydra-20151030.1ff48da.drv' failed
--8<---------------cut here---------------end--------------->8---

Clément