Merge branch 'release-0.22' into release
Merge branch 'build' into configure
Merge branch 'sandbox' into check-pkg_config-by-conditional
Merge branch 'develop' into check-pkg_config-by-conditional
Do PKG_PROG_PKG_CONFIG out of if-clause
Merge branch 'check-pkg_config-by-conditional' into configure
Bump version
Merge branch 'configure' into release-0.22
Merge branch 'release-0.22' into release
Fix linker error: gdImageCreateFromTiffPtr not found in ArchLinux
Merge branch 'configure' into release-0.22
Merge branch 'release-0.22' into release
Fix a typo
Merge branch 'configure' into release-0.22
Merge branch 'release-0.22' into release
Merge branch 'release' into develop