g++ linker problem with libcygwin.a
zosrothko
zosrothko@orange.fr
Mon Mar 17 01:57:00 GMT 2014
Hi
Here the definition of the cmain.c program, part of libcygwin.a. This code
has a "main" entry point which is calling the WinMain by the end.... So the
question remains: Why g++/ld links with this "main" entry instead of the one
of the user's main program?
zos
/* libcmain.c
Copyright 1996, 1997, 1998, 2000, 2001, 2006, 2009 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <windows.h>
#define SP " \t\n"
/* Allow apps which don't have a main to work, as long as they define
WinMain */
int
main ()
{
HMODULE x = GetModuleHandle (0);
char *s = GetCommandLine ();
STARTUPINFO si;
char *nexts;
s += strspn (s, SP);
if (*s != '"')
nexts = strpbrk (s, SP);
else
while ((nexts = strchr (s + 1, '"')) != NULL && nexts[-1] == '\\')
s = nexts;
if (!nexts)
nexts = strchr (s, '\0');
else
nexts += strspn (nexts + 1, SP);
GetStartupInfo (&si);
return WinMain (x, 0, nexts,
((si.dwFlags & STARTF_USESHOWWINDOW) != 0
? si.wShowWindow
: SW_SHOWNORMAL));
}
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