libass configure error

[cae51]

sudo port install ffmpeg fails with

Failed to configure libass, consult /opt/...libass-0.10.config.log 
Error: org.macports.configure for port libass returned: configure failure: command execution failed

port version: 2.2.0
clang version 4.2 (clang-425.0.28)
target: x86-64-apple-darwin
xcode 4.6.3

Problem started when doing a port upgrade outdated.
Did a sudo port clean ffmpeg --- same error
Un-installed all of MacPorts, downloaded new package and installed --- same error

[larryv (Lawrence Velázquez)]

Thanks for the ticket. In the future, please Cc relevant port maintainers (port info --maintainers).

Please ​clean, try again, and attach the main.log.

[cae51]

commands sequence at cli; and attached main.log. Thanks.

MacBook-Air:~ cae$ sudo port clean ffmpeg
Password:
--->  Cleaning ffmpeg
MacBook-Air:~ cae$ find /opt/local/ -name main.log
/opt/local//var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_gmake/gmake/main.log
/opt/local//var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_libass/libass/main.log
MacBook-Air:~ cae$ sudo port install ffmpeg
Password:
--->  Computing dependencies for ffmpeg
--->  Dependencies to be installed: libass libbluray libmodplug libopus libsdl xorg-libXext xorg-libX11 xorg-kbproto xorg-libXau xorg-xproto xorg-libXdmcp xorg-libxcb python27 db46 db_select libedit openssl python_select sqlite3 xorg-libpthread-stubs xorg-xcb-proto xorg-xextproto xorg-libXrandr xorg-randrproto xrender xorg-renderproto libtheora libvpx openjpeg15 jbigkit lcms2 jpeg tiff schroedinger orc speex x264
--->  Configuring libass
Error: Failed to configure libass, consult /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_libass/libass/work/libass-0.10.1/config.log
Error: org.macports.configure for port libass returned: configure failure: command execution failed
Error: Failed to install libass
Please see the log file for port libass for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_libass/libass/main.log
Error: The following dependencies were not installed: libass libbluray libmodplug libopus libsdl xorg-libXext xorg-libX11 xorg-kbproto xorg-libXau xorg-xproto xorg-libXdmcp xorg-libxcb python27 db46 db_select libedit openssl python_select sqlite3 xorg-libpthread-stubs xorg-xcb-proto xorg-xextproto xorg-libXrandr xorg-randrproto xrender xorg-renderproto libtheora libvpx openjpeg15 jbigkit lcms2 jpeg tiff schroedinger orc speex x264
Error: Processing of port ffmpeg failed

[mf2k (Frank Schima)]

The error is in libass.

:info:configure checking for pkg-config... no
:info:configure checking for FREETYPE... configure: error: in `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_libass/libass/work/libass-0.10.1':
:info:configure configure: error: The pkg-config script could not be found or is too old.  Make sure it
:info:configure is in your PATH or set the PKG_CONFIG environment variable to the full
:info:configure path to pkg-config.

What is the output of the following?

port installed pkgconfig

[jeremyhu (Jeremy Huddleston Sequoia)]

It's listed as a build dependency of libass.

[cae51]

Apologies for the delay in replying.

MacBook-Air:~ cae$ port installed pkgconfig

The following ports are currently installed:
  pkgconfig @0.28_0 (active)

HOWEVER, this info may not be relevant, because a couple of day back I deleted MacPorts completely (which I've done before) but this time I also deleted /opt/local. Then downloaded a fresh copy of the installer and installed it. Then I tried sudo port install ffmpeg, with success. Perhaps the new install corrected the problem with libass or pkgconfig? Whatever it was, ffmpeg now works fine.

Thanks again for the help.