我在 WSL 2 上运行 Ubuntu 20.04。我安装了 libpangocairo，但找不到它的任何头文件。
我应该安装 pangocairo：
$ apt list --installed|grep pango
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
libpango-1.0-0/focal,now 1.44.7-2ubuntu4 amd64 [installed]
libpango-perl/focal,now 1.227-3build1 amd64 [installed]
libpangocairo-1.0-0/focal,now 1.44.7-2ubuntu4 amd64 [installed,automatic]
libpangoft2-1.0-0/focal,now 1.44.7-2ubuntu4 amd64 [installed,automatic]
但头文件都不存在：
$ find . -path ./mnt -prune -o -print |grep pango
./usr/lib/x86_64-linux-gnu/libpango-1.0.so.0.4400.7
./usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0.4400.7
./usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0
./usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0
./usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0.4400.7
./usr/lib/x86_64-linux-gnu/perl5/5.30/Pango/Install/pango-perl.typemap
./usr/lib/x86_64-linux-gnu/perl5/5.30/Pango/Install/pango-perl.h
./usr/lib/x86_64-linux-gnu/perl5/5.30/Pango/Install/pango-perl-autogen.h
./usr/lib/x86_64-linux-gnu/perl5/5.30/Pango/Install/pango-perl-versions.h
./usr/lib/x86_64-linux-gnu/perl5/5.30/Pango/Install/pango.typemap
./usr/lib/x86_64-linux-gnu/libpango-1.0.so.0
./usr/share/doc/libpangocairo-1.0-0
./usr/share/doc/libpangocairo-1.0-0/changelog.Debian.gz
./usr/share/doc/libpangocairo-1.0-0/copyright
./usr/share/doc/libpango-1.0-0
./usr/share/doc/libpango-1.0-0/NEWS.gz
./usr/share/doc/libpango-1.0-0/README.md
./usr/share/doc/libpango-1.0-0/THANKS
./usr/share/doc/libpango-1.0-0/changelog.Debian.gz
./usr/share/doc/libpango-1.0-0/copyright
./usr/share/doc/libpango-perl
./usr/share/doc/libpango-perl/changelog.Debian.gz
./usr/share/doc/libpango-perl/examples
./usr/share/doc/libpango-perl/examples/cairo-simple.pl
./usr/share/doc/libpango-perl/copyright …