Bug 836214

Summary:	net-dns/unbound-1.13.2-r1 - configure: error: Cannot find the libevent library in /usr
Product:	Gentoo Linux	Reporter:	Bertrand Jacquin <bertrand>
Component:	Current packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED FIXED
Severity:	normal	CC:	bertrand
Priority:	Normal	Keywords:	PullRequest
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://github.com/gentoo/gentoo/pull/24764
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	emerge --info build.log

Description Bertrand Jacquin 2022-03-26 19:10:03 UTC

Hi,

net-dns/unbound-1.13.2-r1 fails to cross compile to x86_64-linux-musl with the following error when libevent is installed in the destination root but not in the build host root:

checking for libevent... configure: error: Cannot find the libevent library in /usr
You can restart ./configure --with-libevent=no to use a builtin alternative.
Please note that this alternative is not as capable as libevent when using
large outgoing port ranges.

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/net-dns/unbound-1.13.2-r1/work/unbound-1.13.2-.default/config.log
 * ERROR: net-dns/unbound-1.13.2-r1::gentoo failed (configure phase):
 *   econf failed

This is related to the fact EPREFIX is used to specify the location of libevent on the build host root instead of ESYSROOT to specify the location of libevent on sysroot.

emerge --info and build.log are attached.

Reproducible: Always

Comment 1 Bertrand Jacquin 2022-03-26 19:12:22 UTC

Created attachment 767911 [details]
emerge --info

Comment 2 Bertrand Jacquin 2022-03-26 19:12:32 UTC

Created attachment 767912 [details]
build.log

Comment 3 Larry the Git Cow gentoo-dev

2022-03-27 00:24:21 UTC

The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0c75271342c1cc3e83f0c03dbb04b9e2096c7af5

commit 0c75271342c1cc3e83f0c03dbb04b9e2096c7af5
Author:     Bertrand Jacquin <bertrand@jacquin.bzh>
AuthorDate: 2022-03-26 17:28:27 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2022-03-27 00:24:07 +0000

    net-dns/unbound: specify dependency location from sysroot
    
    configure needs to find the location of libevent and other build time
    and runtime dependencies from sysroot instead of build host to allow
    cross compilation.
    
    This can be replicated by having dev-libs/libevent not installed on the
    build host and cross compiling net-dns/unbound, leading to error like:
    
      ..
      ./configure .. --with-libevent=/usr ..--with-ssl=/usr --with-libexpat=/usr
      ..
      checking for libevent... configure: error: Cannot find the libevent library in /usr
    
    Bug: https://bugs.gentoo.org/836214
    Signed-off-by: Bertrand Jacquin <bertrand@jacquin.bzh>
    Package-Manager: Portage-3.0.30, Repoman-3.0.3
    Closes: https://github.com/gentoo/gentoo/pull/24764
    Signed-off-by: Sam James <sam@gentoo.org>

 net-dns/unbound/unbound-1.13.2-r1.ebuild | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comment 4 Sam James archtester

2022-03-27 00:38:05 UTC

Thanks!

Comment 5 Larry the Git Cow gentoo-dev

2022-03-27 09:43:44 UTC

The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b600f444ebc8a6cdb9ea4162c88f0543cf2175bb

commit b600f444ebc8a6cdb9ea4162c88f0543cf2175bb
Author:     Marc Schiffbauer <mschiff@gentoo.org>
AuthorDate: 2022-03-27 09:39:52 +0000
Commit:     Marc Schiffbauer <mschiff@gentoo.org>
CommitDate: 2022-03-27 09:43:12 +0000

    net-dns/unbound: fix #836214 for 1.14.0 and 1.15.0
    
    Bug: https://bugs.gentoo.org/836214
    Signed-off-by: Marc Schiffbauer <mschiff@gentoo.org>

 .../unbound/{unbound-1.14.0.ebuild => unbound-1.14.0-r1.ebuild}   | 8 ++++----
 net-dns/unbound/unbound-1.15.0.ebuild                             | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)