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Date: Tue, 18 Jul 2023 07:53:10 +0900
To: cygwin AT cygwin DOT com
Cc: "=?UTF-8?B?TcO8bWlu?= A." <muminaydin06 AT gmail DOT com>
Subject: Re: linking multiple function from .lib to CYGWIN
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From: Takashi Yano via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
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On Fri, 14 Jul 2023 11:51:59 +0300
Mümin A. wrote:
> Hi,
> 
> I can only link one function at a time in a *msvc *built library but when I
> use multiple functions in the CYGWIN
> compiler,  I got that error message.
> 
> int main()
> {
> helloWorld2();
> return 0;
> }
> 
> That is compiled and linked successfully.
> 
> int main()
> {
> helloWorld2();
> helloWorld3();
> return 0;
> }
> 
> That is  compiled but linking throws  a bug report.
> 
> [ 50%] Linking CXX executable a.exe
> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld:
> internal error: aborting at
> /mnt/share/cygpkgs/binutils/binutils.x86_64/src/binutils-2.40/ld/ldlang.c:527
> in compare_section
> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld:
> please report this bug

Perhaps, this is a bug of gcc 11 which has been already fixed in
gcc 12.

Workaround is:
Link .dll directly instead of linking .lib if your .lib is
associated with a DLL.

-- 
Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>

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