Viktor Szakats 2100d9fde2 cmake: pre-fill rest of detection values for Windows ... The goal of this patch is to avoid unnecessary feature detection work when doing Windows builds with CMake. Do this by pre-filling well-known detection results for Windows and specifically for mingw-w64 and MSVC compilers. Also limit feature checks to platforms where the results are actually used. Drop a few redundant ones. And some tidying up. - pre-fill remaining detection values in Windows CMake builds. Based on actual detection results observed in CI runs, preceding similar work over libssh2 and matching up values with `lib/config-win32.h`. This brings down CMake configuration time from 58 to 14 seconds on the same local machine. On AppVeyor CI this translates to: - 128 seconds -> 50 seconds VS2022 MSVC with OpenSSL (per CMake job): https://ci.appveyor.com/project/curlorg/curl/builds/48208419/job/4gw66ecrjpy7necb#L296 https://ci.appveyor.com/project/curlorg/curl/builds/48217440/job/8m4fwrr2fe249uo8#L186 - 62 seconds -> 16 seconds VS2017 MINGW (per CMake job): https://ci.appveyor.com/project/curlorg/curl/builds/48208419/job/s1y8q5ivlcs7ub29?fullLog=true#L290 https://ci.appveyor.com/project/curlorg/curl/builds/48217440/job/pchpxyjsyc9kl13a?fullLog=true#L194 The formula is about 1-3 seconds delay for each detection. Almost all of these trigger a full compile-link cycle behind the scenes, slow even today, both cross and native, mingw-w64 and apparently MSVC too. Enabling .map files or other custom build features slows it down further. (Similar is expected for autotools configure.) - stop detecting `idn2.h` if idn2 was deselected. autotools does this. - stop detecting `idn2.h` if idn2 was not found. This deviates from autotools. Source code requires both header and lib, so this is still correct, but faster. - limit `ADDRESS_FAMILY` detection to Windows. - normalize `HAVE_WIN32_WINNT` value to lowercase `0x0a12` format. - pre-fill `HAVE_WIN32_WINNT`-dependent detection results. Saving 4 (slow) feature-detections in most builds: `getaddrinfo`, `freeaddrinfo`, `inet_ntop`, `inet_pton` - fix pre-filled `HAVE_SYS_TIME_H`, `HAVE_SYS_PARAM_H`, `HAVE_GETTIMEOFDAY` for mingw-w64. Luckily this do not change build results, as `WIN32` took priority over `HAVE_GETTIMEOFDAY` with the current source code. - limit `HAVE_CLOCK_GETTIME_MONOTONIC_RAW` and `HAVE_CLOCK_GETTIME_MONOTONIC` detections to non-Windows. We're not using these in the source code for Windows. - reduce compiler warning noise in CMake internal logs: - fix to include `winsock2.h` before `windows.h`. Apply it to autotools test snippets too. - delete previous `-D_WINSOCKAPI_=` hack that aimed to fix the above. - cleanup `CMake/CurlTests.c` to emit less warnings. - delete redundant `HAVE_MACRO_SIGSETJMP` feature check. It was the same check as `HAVE_SIGSETJMP`. - delete 'experimental' marking from `CURL_USE_OPENSSL`. - show CMake version via `CMakeLists.txt`. Credit to the `zlib-ng` project for the idea: 61e181c8ae/CMakeLists.txt (L7) - make `CMake/CurlTests.c` pass `checksrc`. - `CMake/WindowsCache.cmake` tidy-ups. - replace `WIN32` guard with `_WIN32` in `CMake/CurlTests.c`. Closes #12044		2023-10-24 21:06:36 +00:00
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WindowsCache.cmake	cmake: pre-fill rest of detection values for Windows	2023-10-24 21:06:36 +00:00