configure script ignores pkgconfigdir

[Vortico]

Using --pkgconfigdir when running ./configure appears to have no effect on the actual PKG_CONFIG_PATH.

To reproduce, install a library, like libopus, which places an opus.pc file in a default location like /usr/lib/pkgconfig/. Then move opus.pc to a nonstandard directory such as /home/vortico/local/lib/pkgconfig/, forcing us to use pkgconfigdir. Run the following in ffmpeg's directory.

./configure --pkgconfigdir=/home/vortico/local/lib/pkgconfig/ --enable-libopus

The script fails with

ERROR: opus not found using pkg-config

However, running

PKG_CONFIG_PATH=/home/vortico/local/lib/pkgconfig/ ./configure --enable-libopus

is successful. In the test_pkg_config() function in configure, the line

test_cmd $pkg_config --exists --print-errors $pkg_version

return

or other invocations of pkg_config, appears to not make use of the pkgconfigdir at all.

[Timo R.]

--pkgconfigdir controls where "make install" will install ffmpegs .pc files. It has no influence on where it searches for them in any way.

As configure --help says:
"--pkgconfigdir=DIR install pkg-config files in DIR [LIBDIR/pkgconfig]"

[Jason Pepas]

(deleted)

[Jason Pepas]

(deleted)

[Jason Pepas]

this turned out to be a problem local to my system, sorry for the confusion.