Meson: Platform information

diff --git a/meson/platform/meson.build b/meson/platform/meson.build
new file mode 100644 (file)
index 0000000..2cb763b
--- /dev/null
+++ b/meson/platform/meson.build
@@ -0,0 +1,42 @@
+# Platform detection
+# Inputs: deps conf system
+
+platforms = [
+  ['linux',   [['HAVE_LINUX',   'We are on Linux']], [], []],
+  ['darwin',  [['HAVE_DARWIN',  'We are on Darwin/MacOS']], [], ['__APPLE_USE_RFC_3542', '_XOPEN_SOURCE', '_DARWIN_C_SOURCE'], []],
+  ['openbsd', [['HAVE_OPENBSD', 'We are on OpenBSD']], [], []],
+  ['freebsd', [['HAVE_FREEBSD', 'We are on FreeBSD']], [], []],
+  ['sunos',   [['HAVE_SOLARIS', 'We are on Solaris/SunOS'],
+               ['NEED_POSIX_TYPEDEF', 'POSIX typedefs need to be defined'],
+               ['NEED_INET_NTOP_PROTO', 'OS is so broken that it needs an additional prototype']],
+   ['_REENTRANT'], ['posix4']],
+]
+
+foreach platform: platforms
+  name = platform[0]
+  defines = platform[1]
+  args = platform[2]
+  libs = platform[3]
+
+  if system == name
+    platform_defines = []
+    foreach define: defines
+      define_name = define[0]
+      define_desc = define[1]
+      conf.set10(define_name, true, description: define_desc)
+      platform_defines += define[0]
+    endforeach
+
+    foreach arg: args
+      add_project_arguments(['-D' + arg], language: 'cpp')
+    endforeach
+
+    foreach lib: libs
+      deps += cxx.find_library(lib, required: true)
+    endforeach
+
+    summary('Defines', ' '.join(platform_defines), section: 'System')
+
+    break
+  endif
+endforeach