Merge branch 'sandbox' into kmiya
Merge branch 'feature-load-ppm' into kmiya
Merge branch 'fix-for-cygwin-environment' into configure-gd-integration
Merge branch 'configure-support-less-featured-gd' into configure-gd-integration
Merge branch 'configure-gd-integration' into gd-integration
Rebuild
Support some environments lack getopt_long
Add a config.h definition which represents getopt_long avilability
Merge branch 'develop' into sandbox
Add new configure option --with-wic
Check libs for WIC integration
Update build files
Add some files for WIC integration
Merge branch 'confugre-wic-integration' into feature-wic-integration
Minor fix
Minor fix
Update build files
Add new configure output target: wic_install.reg/wic_uninstall.reg
Merge branch 'feature-wic-integration' of github.com:saitoha/libsixel into feature-wic-integration
Merge branch 'fix-for-lacking-getopt_long' into develop