httpd 2.4.x compatibility - #5
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Build against httpd 2.4.52+ as well as trunk. - h3_compat.h keys H3_HAS_RESPONSE_BUCKETS on the same MMN boundary mod_http2 uses (20211221.6). - Without response buckets, remove the core HTTP_HEADER filter from synthesized requests and snapshot response status and headers via h3_response_finalize(), a port of ap_http_header_filter by way of mod_http2's h2_c2_filter.c, minus the HTTP/1.x transport concerns. - Capture status and headers into h3_conn_ctx_t on both paths instead of holding an ap_bucket_response. - Treat the MPM connection-count notifications as optional: stock 2.4.x MPMs lack them, so warn and run in a degraded mode where a graceful child stop does not wait for active QUIC connections to drain, instead of refusing to start. .patches/httpd-2.4.66-pr699.patch adds the notifications to 2.4.x. - Lower the build floor to httpd 2.4.52: ap_create_request (2.4.49), the child_stopping hook (2.4.49) and ap_thread_current (2.4.52) must exist.
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Build against httpd 2.4.68 as well as trunk.