[POC][APR] Support for cross-building using configuration variables#24329
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recipes/apr/all/conanfile.py
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| "ac_cv_file__dev_zero=yes", | ||
| "ac_cv_mmap__dev_zero=yes", |
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For ` "ac_cv_file__dev_zero=yes", "ac_cv_mmap__dev_zero=yes":
- Linux should have
/dev/zeroand it should bemmap'able, and but fairly certainmmapalso supports zeroing with with theMAP_ANONYMOUSflag - so on Linux I think these two checks areyesalmost universally.
recipes/apr/all/conanfile.py
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| configure_args.extend(["apr_cv_mutex_robust_shared=yes", | ||
| "ac_cv_file__dev_zero=yes", | ||
| "ac_cv_mmap__dev_zero=yes", | ||
| "ac_cv_define_PTHREAD_PROCESS_SHARED=yes", |
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Surprised this check needs any runtime anything, fairly certain it just checks that the PTHREAD_PROCESS_SHARED macro is defined in pthread.h - this seems part of Posix and I can't find examples of this not being defined on Linux. Very much not the case on windows though
| "ac_cv_mmap__dev_zero=yes", | ||
| "ac_cv_define_PTHREAD_PROCESS_SHARED=yes", | ||
| "apr_cv_process_shared_works=yes", | ||
| "apr_cv_tcp_nodelay_with_cork=yes"]) |
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tcpcork is available on Linux since kernel 2.2 released in 1999
https://linux.die.net/man/7/tcp
So I think we can also assume that this is available - the check is more useful keeping in mind that apr is quite old and aims to support things like solaris, sunOS, etc
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Conan v1 pipeline ✔️All green in build 5 (
Conan v2 pipeline ✔️
All green in build 5 ( |
5 participants
Summary
Changes to recipe: apr/[*]
Motivation
Coming from: #17609
This PR does not provide pre-built cached files, it offers some common flags to let the machine configure the APR library when cross-building.
Details
user.apr:cache_fileto pass any pre-built cached file.cc @swebb2066