Install error in OSX Yosemite

[wbobeirne]

I personally cannot replicate, but 4 students have reported the same issue:

 ✖ Error: autoreconf -fiv && ./configure --disable-shared --prefix="/Users/JustinLoffredo/Documents/WWW/nycda-react-flux-art-challenge/node_modules/mozjpeg/vendor" --bindir="/Users/JustinLoffredo/Documents/WWW/nycda-react-flux-art-challenge/node_modules/mozjpeg/vendor" --libdir="/Users/JustinLoffredo/Documents/WWW/nycda-react-flux-art-challenge/node_modules/mozjpeg/vendor" && make --jobs=4 && make install --jobs=4
Command failed: ./configure --disable-shared --prefix="/Users/JustinLoffredo/Documents/WWW/nycda-react-flux-art-challenge/node_modules/mozjpeg/vendor" --bindir="/Users/JustinLoffredo/Documents/WWW/nycda-react-flux-art-challenge/node_modules/mozjpeg/vendor" --libdir="/Users/JustinLoffredo/Documents/WWW/nycda-react-flux-art-challenge/node_modules/mozjpeg/vendor"

./configure: line 13758: syntax error near unexpected token `libpng,'
./configure: line 13758: `PKG_CHECK_MODULES(libpng, libpng, HAVE_LIBPNG=1,'

I initially had to have them install libtool and autoconf to get the install running, but I can't get past this issue. A syntax error seems pretty strange.

[wbobeirne]

After much struggling, I found that it was this issue: mozilla/mozjpeg#112 Missing pkg-config on OSX. I'm guessing that this comes with xcode or something, which is why some would have it and others would not. I wish the handling around this stuff was a little better, but glad I've got it solved.