libv4l's configure.ac contains a Bashism (use of == operator with test built-in). Thus, configure throws an error when /bin/sh is not Bash. This doesn't cause the build to fail outright, but it may be causing misdetection of features. AM_CONDITIONAL([WITH_GCONV], [test x$enable_gconv = xyes -a x$enable_shared == xyes -a x$with_gconvdir != x -a -f $with_gconvdir/gconv-modules]) /var/tmp/portage/media-libs/libv4l-1.18.1/work/v4l-utils-1.18.1/configure: 23600: test: xyes: unexpected operator Suggest setting CONFIG_SHELL=/bin/bash when running configure. The "unexpected operator" message above is not present when CONFIG_SHELL=/bin/bash.
Patch sent to upstream (see URL)...
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=205e228434c0f9ff2e6156942a1ee8f8f56129fa commit 205e228434c0f9ff2e6156942a1ee8f8f56129fa Author: James Le Cuirot <chewi@gentoo.org> AuthorDate: 2020-08-23 16:37:15 +0000 Commit: James Le Cuirot <chewi@gentoo.org> CommitDate: 2020-08-23 16:42:18 +0000 media-tv/v4l-utils: Bump to 1.20.0, fix some automagics The automagic libudev dependency has now been dealt with via a patch and udev USE flag. Among other things, this library is needed for the DVB utilities so a dvb USE flag has also been added with a corresponding dependency on libv4l[dvb]. There may be more automagics but I haven't checked yet. Bug: https://bugs.gentoo.org/691066 Bug: https://bugs.gentoo.org/721374 Package-Manager: Portage-3.0.4, Repoman-3.0.1 Signed-off-by: James Le Cuirot <chewi@gentoo.org> media-tv/v4l-utils/Manifest | 1 + .../files/v4l-utils-1.20.0-automagic.patch | 52 +++++++++++++ media-tv/v4l-utils/v4l-utils-1.20.0.ebuild | 89 ++++++++++++++++++++++ 3 files changed, 142 insertions(+) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=293838bf393bf79cd833e435f4bc0f75399726ca commit 293838bf393bf79cd833e435f4bc0f75399726ca Author: James Le Cuirot <chewi@gentoo.org> AuthorDate: 2020-08-23 16:31:22 +0000 Commit: James Le Cuirot <chewi@gentoo.org> CommitDate: 2020-08-23 16:42:15 +0000 media-libs/libv4l: Bump to 1.20.0, fix automagics configure reportedly has some automagic dependencies but only libudev makes any difference here and it's only used to build libdvbv5. There is already an option for that. Bug: https://bugs.gentoo.org/691066 Bug: https://bugs.gentoo.org/721374 Package-Manager: Portage-3.0.4, Repoman-3.0.1 Signed-off-by: James Le Cuirot <chewi@gentoo.org> media-libs/libv4l/Manifest | 1 + .../libv4l/files/libv4l-1.20.0-automagic.patch | 52 +++++++++++++++ media-libs/libv4l/libv4l-1.20.0.ebuild | 78 ++++++++++++++++++++++ 3 files changed, 131 insertions(+)