>>> Unpacking source...
>>> Unpacking y4mscaler-9.0-src.tgz to /var/tmp/portage/media-video/y4mscaler-9.0/work
>>> Source unpacked in /var/tmp/portage/media-video/y4mscaler-9.0/work
>>> Compiling source in /var/tmp/portage/media-video/y4mscaler-9.0/work/y4mscaler-9.0 ...
make 
g++ -DYS_VERSION_MAJOR=9 -DYS_VERSION_MINOR=0  -O2 -O2 -pipe  -I/usr/include/mjpegtools -I/usr/include/mjpegtools/mpeg2enc -I/usr/include/mjpegtools/mplex   -Wall -W    -c -o graphics.o graphics.C
g++ -DYS_VERSION_MAJOR=9 -DYS_VERSION_MINOR=0  -O2 -O2 -pipe  -I/usr/include/mjpegtools -I/usr/include/mjpegtools/mpeg2enc -I/usr/include/mjpegtools/mplex   -Wall -W    -c -o ysStreamInfo.o ysStreamInfo.C
g++ -DYS_VERSION_MAJOR=9 -DYS_VERSION_MINOR=0  -O2 -O2 -pipe  -I/usr/include/mjpegtools -I/usr/include/mjpegtools/mpeg2enc -I/usr/include/mjpegtools/mplex   -Wall -W    -c -o y4mscaler.o y4mscaler.C
y4mscaler.C: In function 'int main(int, char**)':
y4mscaler.C:197: error: 'LOG_INFO' was not declared in this scope
make: *** [y4mscaler.o] Error 1
 * 
 * ERROR: media-video/y4mscaler-9.0 failed.
 * Call stack:
 *               ebuild.sh, line   49:  Called src_compile
 *             environment, line  167:  Called die
 * The specific snippet of code:
 *       emake || die
 *  The die message:
 *   (no error message)
 * 
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/var/tmp/portage/media-video/y4mscaler-9.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/media-video/y4mscaler-9.0/temp/environment'.
 *