Fix regex to expressly check for starting ., and switch to regex match for SH lines to stop any potential problems with training spaces or multiple spaces before section name.
The install is equivalent to the autoconf install with no options.
Note that where the autoconf adds copies of manual pages renamed to individual APIs via a script manpgaltnames (in doc), this functionality is now done in pure CMake, to ensure it works on Windows.
Also note there is no 'make uninstall'. See https://gitlab.kitware.com/cmake/community/wikis/FAQ#can-i-do-make-uninstall-with-cmake.
* I can't find out where the .so version number currently produced by the autoconf build comes from, so for the moment supply it explicitly.
* Include a version in the Windows DLL. But Windows can only grok major[.minor]. So also supply one of those.
* On Windows, we need a .lib for the .dll, and a static .lib. These, obviously, need different names. So add _static onto the name of the static lib.
* Only build the objects once, so explicitly build both with PIC.
* Only export the explicit list of symbols from the shared library. This has to be done a different way on GNU ld, Mac linker and Windows.
* Although I have left the tools being linked statically, I have tested with dynamic linking. getdns_query uses gettimeofday(), which isn't on Windows. With a static link, it just happens to find it in the getdns library, as the symbols aren't filtered. But this doesn't work for shared use, when they are. So explicitly add the compat implementation into the getdns_query sources.
Add an include of stdlib.h to various files that were relying on config.h to drag it in. I don't think config.h should be pulling in standard C headers.
The change mostly consists of removing or replacing non-standard (usually POSIX) header includes.
Guards for replacements for inet_ntop(), inet_pton() and gettimeofday() are updated; the first two are macros on Windows, so the guards are changed to HAVE_DECL. gettimeofday() is present on MinGW builds but not Visual Studio, so that has a function check.
uClibc 0.9.30rc1 - 0.9.32rc5 has bug - getaddrinfo() does not accept numeric
service without any hints. As the related side effect, hint struct with
ai_socktype == 0 (unspec) and ai_protocol == 0 (unpsec) gives the same
EAI_SERVICE error instead of same address with different proto enumebration.
For more details please refer https://bugs.busybox.net/show_bug.cgi?id=3841 and
https://git.uclibc.org/uClibc/commit/?id=bc3be18145e4d57e7268506f123c0f0f373a15e2
Since 0.9.3x uClibc versions are still not somewhat unique in embedded (issue
https://github.com/getdnsapi/stubby/issues/124 as example) and non-zero
ai_socktype allows to avoid address dups for each supported UDP/TCP/etc proto,
seems worth to have it specified, as a minor memory allocation optimization at
least.
SOCK_DGRAM vs SOCK_STREAM choice doesn't really matter here, both are actually
used for DNS and both are non-zero, no difference is expected on *nix. So
SOCK_DGRAM selected due original comment only.