nghttp2_session.c:1615:9: error: C++ style comments are not allowed in ISO C90 [-Werror]

nghttp2_stream.h:94:43: error: comma at end of enumerator list [-Werror=pedantic]

nghttp2_hd.h:115:30: error: comma at end of enumerator list [-Werror=pedantic]

nghttp2_int.h:50:33: error: comma at end of enumerator list [-Werror=pedantic]

referred to by the global variable 'long_options' upon returning to the caller.
This will be a dangling reference

Found by Clang Analyzer

Callback function invoked to adjust priority value for request
HEADERS.

Since the application doesn’t know stream ID when it submits
requests, it may not be able to add correct priority value to HEADERS
frame and forced to use follwing PRIORITY frame. The purpose of this
callback is give the chance to the application to adjust priority
value with the latest information it has just before transmission so
that correct priority is included in HEADERS frame and it doesn’t
have to send additional PRIORITY frame.