Initial project import

tools/v/vlib/sync/threads/threads.c.v

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+module threads
+
+// This module adds the necessary compiler flags for using threads.
+// It is automatically imported by code that does `go func()` .
+// See vlib/v/parser/pratt.v, search for ast.GoExpr .
+// The goal is that programs, that do not use threads at all will not need
+// to link to -lpthread etc.
+// Note: on some platforms like Android, linking -lpthread is not needed too.
+// See https://stackoverflow.com/a/31277163/1904615
+
+$if !windows && !android {
+	#flag -lpthread
+}

tools/v/vlib/sync/threads/threads.v

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+module threads
+
+// This file is just a placeholder.
+// The actual implementation is backend/platform specific, so see threads.c.v, threads.js.v etc.