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Re: Cross-compiling libfido2
From: |
Pierre Langlois |
Subject: |
Re: Cross-compiling libfido2 |
Date: |
Sat, 26 Mar 2022 14:38:58 +0000 |
User-agent: |
mu4e 1.6.10; emacs 27.2 |
Hi!
Sébastien Lerique <sl@eauchat.org> writes:
> Hello Guix!
>
> I'm trying to build a raw image for a rock64 board, from my x86_64
> laptop (using Guix on PopOS), and bumping into some
> packages seemingly not ready for cross-compilation.
>
> I am adding `(service openssh-service-type ...)` to the base
> gnu/system/images/rock64.scm (building the original rock64.scm config
> works fine), and my build fails at libfido2.
>
> My config is
> https://gitlab.com/wehlutyk/matrixbox/-/blob/eacc326b8a7d41f3113e3768302c59687402a536/config.scm
> and building libfido2 fails at the configure phase with
>
> ```
> (...)
>
> -- Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)
> -- Checking for one of the modules 'libcbor'
> -- Checking for one of the modules 'libcrypto'
> -- Checking for one of the modules 'zlib'
> CMake Error at CMakeLists.txt:206 (message):
> could not find zlib
>
> (...)
> ```
Doing some grepping in Guix and a quick test, I think what you need to
do is set PKG_CONFIG_EXECUTABLE to (pkg-config-for-target) when
cross-compiling. I can see that the libgit2 package does this for example
--8<---------------cut here---------------start------------->8---
`(#:configure-flags
(list "-DUSE_NTLMCLIENT=OFF" ;TODO: package this
"-DREGEX_BACKEND=pcre2"
"-DUSE_HTTP_PARSER=system"
,@(if (%current-target-system)
`((string-append
"-DPKG_CONFIG_EXECUTABLE="
(search-input-file
%build-inputs
(string-append "/bin/" ,(%current-target-system)
"-pkg-config"))))
'()))
#:phases
--8<---------------cut here---------------end--------------->8---
Doing the same thing for libfido2 seems to fix it for me!
--8<---------------cut here---------------start------------->8---
diff --git a/gnu/packages/security-token.scm b/gnu/packages/security-token.scm
index 129b8f6122..092fe13f58 100644
--- a/gnu/packages/security-token.scm
+++ b/gnu/packages/security-token.scm
@@ -910,7 +910,16 @@ (define-public libfido2
("openssl" ,openssl)))
(build-system cmake-build-system)
(arguments
- '(#:phases
+ `(#:configure-flags
+ (list ,@(if (%current-target-system)
+ `((string-append
+ "-DPKG_CONFIG_EXECUTABLE="
+ (search-input-file
+ %build-inputs
+ (string-append "/bin/" ,(%current-target-system)
+ "-pkg-config"))))
+ '()))
+ #:phases
(modify-phases %standard-phases
;; regress tests enabled only for debug builds
(delete 'check))))
--8<---------------cut here---------------end--------------->8---
Does this work for you as well? Let us know if you want to prepare a
patch :-).
Thanks,
Pierre
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