File list of package libfontconfig-dev in bullseye of architecture amd64
/usr/include/fontconfig/fcfreetype.h /usr/include/fontconfig/fcprivate.h /usr/include/fontconfig/fontconfig.h /usr/lib/x86_64-linux-gnu/libfontconfig.a /usr/lib/x86_64-linux-gnu/libfontconfig.so /usr/lib/x86_64-linux-gnu/pkgconfig/fontconfig.pc /usr/share/doc/libfontconfig-dev/changelog.Debian.gz /usr/share/doc/libfontconfig-dev/changelog.gz /usr/share/doc/libfontconfig-dev/copyright