Re: pkg/58506: lang/rust-1.79 build fails due to APIs removed in curl-8.8

[Phil Krylov <phil+netbsd%krylov.eu@localhost>]

The following reply was made to PR pkg/58506; it has been noted by GNATS.

From: Phil Krylov <phil+netbsd%krylov.eu@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: pkg/58506: lang/rust-1.79 build fails due to APIs removed in
 curl-8.8
Date: Mon, 29 Jul 2024 20:38:47 +0200

 On 2024-07-29 14:35, Tobias Nygren wrote:
 >  It is wrong in principle because cargo should still link against the
 >  library in /usr/pkg and will need the lib buildlinked for that.
 >  But all this points to the curl crate using it's bundled headers
 >  regardless which doesn't sound safe on any pkgsrc platform so we'll
 >  need to have a closer look at what it does.
 
 Thank you! In Linux pbulk logs, there is the following fragment:
 
 > ===============================<
 Couldn't find libcurl from pkgconfig (
    pkg-config exited with status code 1
    > PKG_CONFIG_PATH= 
 PKG_CONFIG_LIBDIR=/home/pbulk/build/lang/rust/work/.buildlink/lib64/pkgconfig:/home/pbulk/build/lang/rust/work/.buildlink/lib/pkgconfig:/home/pbulk/build/lang/rust/work/.buildlink/share/pkgconfig 
 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 
 /home/pbulk/build/lang/rust/work/.tools/bin/pkg-config --libs --cflags 
 libcurl
 
    The system library `libcurl` required by crate `curl-sys` was not 
 found.
    The file `libcurl.pc` needs to be installed and the PKG_CONFIG_PATH 
 environment variable must contain its parent directory.
    PKG_CONFIG_PATH contains the following:
        -
 
    HINT: you may need to install a package such as libcurl, libcurl-dev 
 or libcurl-devel.
    ), compiling it from source...
 > ===============================<
 
 Ok, I have removed my patch, started the build and stopped it with ^Z, 
 and tried this command (which is approximately how cargo finds libcurl):
 
 $ PKG_CONFIG_PATH= 
 PKG_CONFIG_LIBDIR=work/.buildlink/lib64/pkgconfig:work/.buildlink/lib/pkgconfig:work/.buildlink/share/pkgconfig 
 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 
 work/.tools/bin/pkg-config --libs --cflags libcurl
 Package libssh2 was not found in the pkg-config search path.
 Perhaps you should add the directory containing `libssh2.pc'
 to the PKG_CONFIG_PATH environment variable
 Package 'libssh2', required by 'libcurl', not found
 
 So, `BUILDLINK_FILES_CMD.libssh2=    ${TRUE}` is guilty then? The 
 question is how to make it build with bundled libssh2 and pkgsrc's curl. 
 And if it is needed/possible at all.
 
 Now I am trying to build without `BUILDLINK_FILES_CMD.libssh2=    
 ${TRUE}` .
 
 -- Ph.