textproc/exempi: update to 2.6.3
Previous patches incorporated into the release or obviated.
While here:
- force C++11, as the project expects it, and to override clang 16's default
C++17
- add LICENSE{,_FILE}
textproc/exempi: update to 2.6.2. release (+)
Here are the changes:
* Update XMPCore to Adobe XMP SDK v2022.06
* Build system fixes that don’t matter.
* Fix a typo in an ID3 genre string
* Build XMP_SDK with some fatal warnings:
-Werror=missing-field-initializers
-Werror=misleading-indentation
-Werror=class-memaccess
* Remove (deprecated) boost_test_minimal
* CI: require “bionic” on Travis CI.
* Remove old .sym file (Daniel Kolesa)
* Added --enable-samples (default = yes) (Fabrice Fontaine)