Could not symlink lib/pkgconfig/libpng.pc

Could not symlink lib/pkgconfig/libpng.pc

对于这种错误，执行sudo chown命令。示例：

your_name$ brew install emacs --with-cocoa...==> Installing emacs dependency: libpng==> Downloading https://homebrew.bintray.com/bottles/libpng-1.6.25.el_capitan.bottle.tar.gz######################################################################## 100.0%==> Pouring libpng-1.6.25.el_capitan.bottle.tar.gzError: The `brew link` step did not complete successfullyThe formula built, but is not symlinked into /usr/localCould not symlink lib/pkgconfig/libpng.pc/usr/local/lib/pkgconfig is not writable.You can try again using:  brew link libpng==> Summary��  /usr/local/Cellar/libpng/1.6.25: 25 files, 1.2M...your_name$ brew link libpng freetype fontconfig pixman pcre glib cairo libtiff gobject-introspection gdk-pixbuf libcrocoLinking /usr/local/Cellar/libpng/1.6.25... Error: Could not symlink lib/pkgconfig/libpng.pc/usr/local/lib/pkgconfig is not writable.your_name$ sudo chown your_name /usr/local/lib/pkgconfigyour_name$ brew link libpng freetype fontconfig pixman pcre glib cairo libtiff gobject-introspection gdk-pixbuf libcrocoLinking /usr/local/Cellar/libpng/1.6.25... 18 symlinks createdLinking /usr/local/Cellar/freetype/2.7... 8 symlinks createdLinking /usr/local/Cellar/fontconfig/2.12.1_2... 222 symlinks createdLinking /usr/local/Cellar/pixman/0.34.0... 5 symlinks createdLinking /usr/local/Cellar/pcre/8.39... 133 symlinks createdLinking /usr/local/Cellar/glib/2.50.1... 145 symlinks createdLinking /usr/local/Cellar/cairo/1.14.6_1... 27 symlinks createdLinking /usr/local/Cellar/libtiff/4.0.6_2... 106 symlinks createdLinking /usr/local/Cellar/gobject-introspection/1.50.0... 19 symlinks createdLinking /usr/local/Cellar/gdk-pixbuf/2.36.0_2... 260 symlinks createdLinking /usr/local/Cellar/libcroco/0.6.11... 8 symlinks createdyour_name$