build(meson): only build on Linux (#986)

related to #41
related to #183
related to #760
closes     #960
related to #985

related to #6
related to #538
related to #649
related to #741
related to #874

closes     #525

README.md

@@ -11,7 +11,7 @@ SPDX-License-Identifier: Apache-2.0
 [![autopkgtest](https://github.com/pistacheio/pistache/actions/workflows/autopkgtest.yaml/badge.svg)](https://github.com/pistacheio/pistache/actions/workflows/autopkgtest.yaml)
 [![REUSE status](https://api.reuse.software/badge/github.com/pistacheio/pistache)](https://api.reuse.software/info/github.com/pistacheio/pistache)
 
-Pistache is a modern and elegant HTTP and REST framework for C++. It is entirely written in pure-C++17 and provides a clear and pleasant API.
+Pistache is a modern and elegant HTTP and REST framework for C++. It is entirely written in pure-C++17[*](#linux-only) and provides a clear and pleasant API.
 
 ## Documentation
 
@@ -252,3 +252,5 @@ int main() {
 ## Project status
 
 Pistache hasn't yet hit the 1.0 release. This means that the project is _unstable_ but not _unusable_. In fact, most of the code is production ready; you can use Pistache to develop a RESTful API without issues, but the HTTP client has a few issues in it that make it buggy.
+
+<b id="linux-only">\*</b> While most code uses modern C++, Pistache makes use of some Linux-specific APIs where the standard library doesn't provide alternatives, and works only on that OS. See [#6](https://github.com/pistacheio/pistache/issues/6#issuecomment-242398225) for details. If you know how to help, please contribute a PR to add support for your desired platform :)

meson.build

@@ -17,6 +17,10 @@ project(
 	meson_version: '>=0.50.0'
 )
 
+if host_machine.system() != 'linux'
+	error('Pistache currenly only supports Linux. See https://github.com/pistacheio/pistache/issues/6#issuecomment-242398225 for more information')
+endif
+
 compiler = meson.get_compiler('cpp')
 
 # Wrapping arguments inside a call to get_supported_arguments so that only supported arguments get applied

version.txt

 VERSION_MAJOR           0
 VERSION_MINOR           0
 VERSION_PATCH           002
-VERSION_GIT_DATE        20210915
+VERSION_GIT_DATE        20210927
 
 SONAME_VERSION_MAJOR    0
 SONAME_VERSION_MINOR    0