MISC: macbuild.sh: set pkg-config path for ffmpeg@4

Signed-off-by: Stefan Westerfeld <stefan@space.twc.de>

misc/macbuild.sh

@@ -3,6 +3,8 @@ set -Eeo pipefail -x
 
 # install dependencies
 brew install autoconf-archive automake libsndfile fftw mpg123 libgcrypt libtool ffmpeg@4
+export PKG_CONFIG_PATH="$(brew --prefix ffmpeg@4)/lib/pkgconfig:${PKG_CONFIG_PATH:-}"
+export PATH="$(brew --prefix ffmpeg@4)/bin:$PATH"
 
 # build zita-resampler
 git clone https://github.com/swesterfeld/zita-resampler
@@ -13,10 +15,11 @@ cd ..
 export DYLD_LIBRARY_PATH=/usr/local/lib:$DYLD_LIBRARY_PATH
 # build audiowmark
 ./autogen.sh
-make
-make check
+NPROC=`sysctl -n hw.ncpu`
+make -j $NPROC
+make  -j $NPROC check
 # build audiowmark with ffmpeg support
 make clean
 ./autogen.sh --with-ffmpeg
-make
-make check
+make -j $NPROC
+make -j $NPROC check