macOS (10.13.6) 下编译失败：
$ ./configure --prefix=$HOME/.local --disable-silent-rules --with-gnutls --with-json --with-mailutils --with-modules --with-ns --disable-ns-self-contained --with-rsvg --with-xml2 --with-cairo --without-dbus
...
config.status: creating src/config.h
config.status: src/config.h is unchanged
config.status: executing src/epaths.h commands
Makefile:1248: *** missing separator. Stop.
config.status: error: 'src/epaths.h' could not be made.
$ sed -n '1248p' Makefile
@GSETTINGS_RULES@