今天為了安裝Inkscape在新版的macOS 10.14系統之上，發生了一些問題。下面是解決安裝問題的過程摘要。
$ sudo port install inkscape
Warning: MacPorts is configured to use an unsigned source for the ports tree. Please edit sources.conf and change 'rsync://rsync.macports.org/release/ports/' to 'rsync://rsync.macports.org/release/tarballs/ports.tar'.
Warning: MacPorts is configured to use an unsigned source for selfupdate. Please edit macports.conf and change the rsync_dir setting to match macports.conf.default.
---> Computing dependencies for inkscape
..
.
.
popt
potrace
py27-cython
py27-lxml
py27-nose
py27-numpy
texinfo
urw-fonts
webp
xar
Continue? [Y/n]:
---> Configuring ghostscript
Error: Failed to configure ghostscript: autoreconf failure: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_print_ghostscript/ghostscript/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
Error: Processing of port inkscape failed
xcode-select --install
再來確認是否有確認過xcode的license
sudo xcodebuild -license
一直出現錯誤情況，先針對ghostscript的安裝，詳細觀察安裝過程：
port clean ghostscript port -d -v install ghostscript發現問題出在gmp的安裝，再進一步追踪安裝gmp，發現要先安裝m4，才順利安裝gmp。
sudo port install m4 sudo port load dbus sudo port clean gmp sudo port install gmp sudo port -f activate gmp最後才順利安裝inkscape。
