Daan De Meyer
909efb6f2e
Convert the GnuTLS and libmicrohttpd usage in journal-remote to the
dlopen pattern used by other optional shared libraries. A new
src/shared/gnutls-util.{h,c} declares the GnuTLS entry points via
DLSYM_PROTOTYPE and resolves them in dlopen_gnutls(); microhttpd-util
is moved from src/journal-remote to src/shared and gains analogous
DLSYM_PROTOTYPEs plus dlopen_microhttpd(). Callers in journal-gatewayd,
journal-remote-main and microhttpd-util itself call the sym_* wrappers
and invoke dlopen_gnutls()/dlopen_microhttpd() at their entry points.
setup_gnutls_logger() no longer fails when libgnutls is missing at
runtime; it logs a notice and returns 0 so journal-gatewayd starts up
without TLS dependencies installed.
The meson files gain libgnutls_cflags and libmicrohttpd_cflags partial
dependencies that expose include paths and compile flags only. Every
systemd-journal-{gatewayd,remote,upload} target switches to the cflags
variant, dropping the direct libgnutls/libmicrohttpd link. The
gatewayd->remote object-sharing dance for microhttpd-util.o goes away
since the code now lives in libshared.
test-dlopen-so gains assertions for dlopen_gnutls and dlopen_microhttpd.
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