https://issues.dlang.org/show_bug.cgi?id=15073

          Issue ID: 15073
           Summary: SIGRTMIN is an alias to a private function
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P1
         Component: druntime
          Assignee: nobody@puremagic.com
          Reporter: tomerfiliba@gmail.com

a simple program such as

    import core.sys.posix.signal;

    void main() {
        int rtmin = SIGRTMIN;
    }

fails to compile with

    Error: function core.sys.posix.signal.__libc_current_sigrtmin is not
accessible from module main

Due to the functions being marked private in core.sys.posix.signal

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