Brad Smith made this OpenBSD file based of the
FreeBSD cmake directives in commit ab58904367
by the Monty Program Ab.
As such the Oracle Copyright header isn't really applicable.
This fixed the MySQL bug# 20338 about misuse of double underscore
prefix __WIN__, which was old MySQL's idea of identifying Windows
Replace it by _WIN32 standard symbol for targeting Windows OS
(both 32 and 64 bit)
Not that connect storage engine is not fixed in this patch (must be
fixed in "upstream" branch)
std version has an advantage of a more convenient units implementation from
std::chrono. Now it's no need to multipy/divide to bring anything to
micro seconds.
Largely based on MySQL commit
75271e51d6
MySQL Ref:
BUG#24566529: BACKPORT BUG#23575445 TO 5.6
(cut)
Also, the PTR_SANE macro which tries to check if a pointer
is invalid (used when printing pointer values in stack traces)
gave false negatives on OSX/FreeBSD. On these platforms we
now simply check if the pointer is non-null. This also removes
a sbrk() deprecation warning when building on OS X. (It was
before only disabled with building using XCode).
Removed execinfo path of MySQL patch that was already included.
sbrk doesn't exist on FreeBSD aarch64.
Removed HAVE_BSS_START based detection and replaced with __linux__
as it doesn't exist on OSX, Solaris or Windows. __bss_start
exists on mutiple Linux architectures.
Tested on FreeBSD and Linux x86_64. Being in FreeBSD ports for 2
years implies a good testing there on all FreeBSD architectures there
too. MySQL-8.0.21 code is functionally identical to original commit.
CMake parameter
This includes compiler-specific dependencies
- tiny part of CRT, mostly memcpy/memset in msvcr140.dll
- exception handling in msvc140_1.dll
- C++ standard library in msvcp140
not much else
CMake is smart enough to copy the dependencies into the bin directory
itself.
