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The cmake build has an option to conditionally disable network
support. Similar to `./configure --disable-http` one can say
cmake -B _build -D OP_DISABLE_HTTP=YES && cmake --build _build
Unfortunately this worked by disabling `libopusurl` completely,
which made building the examples fail. The url library can
still be used to load local files or `file://` urls even
when `http(s)://` support is disabled.
Instead, always build the `opusurl` library like the autotools
build does, and instead make the `OP_ENABLE_HTTP` pre-processor
define and the `openssl` link library conditional on the cmake
option.
On OpenIndiana (Illumos) the cmake build fails with indirect symbol references to functions declared by `sys/socket.h`. To address this, check for `getsockopt` linkage, and if it fails try again with `-lsocket` which provides the symbols on that operating system. This doesn't seem to be necessary with the autotools build; perhaps libtool is passing something extra to the linker to have it accept the transitive dependencies. Fixes #60 Fixes https://gitlab.xiph.org/xiph/opusfile/-/issues/2337
In addition to testing the build with a legacy cmake-3.16 upstream package, install the runner's default cmake version and test against that for broader coverage. On the current `gcc:9` container image this is cmake 3.18.4. Also test build with `-D OP_DISABLE_HTTP=YES` to confirm the build completes with this option, if not that it does what it's supposed to. This should protect against regression of the earlier fix.
sezero
approved these changes
Aug 8, 2025
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Fix
cmake -D OP_DISABLE_HTTP=YESand pass-lsocketon illumos.@h3ndrk @sezero Would appreciate your review on this.