The append to $PKG_CONFIG_PATH is broken -- the original code results in a literal value of $PKG_CONFIG_PATH:/app/vendor/vips/lib/pkgconfig due to the escaped \$, instead of allowing the original value to resolve through.
This PR fixes it so this buildpack doesn't clobber previously-set PKG_CONFIG_PATH values.
The append to
$PKG_CONFIG_PATHis broken -- the original code results in a literal value of$PKG_CONFIG_PATH:/app/vendor/vips/lib/pkgconfigdue to the escaped\$, instead of allowing the original value to resolve through.This PR fixes it so this buildpack doesn't clobber previously-set PKG_CONFIG_PATH values.