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Date: Mon, 24 Nov 2008 10:56:49 -0800
From: Brian Dessent <brian AT dessent DOT net>
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Subject: Re: [OT] Re: Opening a (cygwin-ised) DLL
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"Yaakov (Cygwin Ports)" wrote:

> John Emmas wrote:
> > Oops, I meant to ask another question (almost a variation on the same
> > theme).  Does Cygwin itself (or more correctly, its linker) link
> > automatically to any of the standard Windows libs (such as kernel32.lib,
> > user32.lib etc).
> 
> kernel32 is added by default because libcygwin.a depends on it.  If you
> pass -mwindows to gcc during linking, then gdi32 is added as well.

It's not only kernel32:

$ gcc -dumpspecs | egrep -A2 '\*lib:'
*lib:
  %{pg:-lgmon}   %{!mno-cygwin:-lcygwin}  
%{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32}   %{mwindows:-lgdi32
-lcomdlg32}   -luser32 -lkernel32 -ladvapi32 -lshell32

This means that by default -luser32 -lkernel32 -ladvapi32 -lshell32 are
added to every link, as well as -lgdi32 -lcomdlg32 if using -mwindows.

Brian

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