- **status**: open --> pending
- **Comment**:

Steve Holme is making new project files for curl/libcurl, the old ones will be discarded so there's no point in fixing them. Please join in and help us polish the new ones. They will be included in the daily snapshots starting tomorrow, and will be in the pending next release (due on Wednesday!)

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** [bugs:#1373] unresolved symbol error when build curl using Visual Studio 2013**
**Status:** pending
**Created:** Sun May 18, 2014 06:18 PM UTC by bowmanhan
**Last Updated:** Sun May 18, 2014 06:23 PM UTC
**Owner:** nobody
I tried compiling libCurl and Curl in Visual Studio 2013 using 
the project file included in the ./vs/vc6 folder (vc6curl.dsw).
I am using the latest curl 7.36.0 from the offical website.
I compiled libCurl without any error.But When I tried to build curl,I got 
2>dll-debug/curl.exe : fatal error LNK1120: 1 unresolved externals
here is the full log,I omit some unimportant logs with ...
1>------ Build started: Project: libcurl, Configuration: DLL Debug Win32 ------
1>  amigaos.c
1>  asyn-ares.c
1>  asyn-thread.c
1>  base64.c
...
1>  Generating Code...
1>  Compiling...
1>  hostip6.c
1>  hostip.c
...
1>  md5.c
1>  Generating Code...
1>  Compiling...
1>  memdebug.c
...
1>  smtp.c
1>  Generating Code...
1>  Compiling...
1>  socks.c
...
1>  curl_darwinssl.c
1>  curl_schannel.c
1>  Generating Code...
1>  Compiling...
1>  cyassl.c
1>  gskit.c
...
1>  x509asn1.c
1>  Generating Code...
1>     Creating library dll-debug/libcurld_imp.lib and object dll-debug/libcurld_imp.exp
1>  vc6libcurl.vcxproj -> I:\lib\curl-7.36.0\vs\vc6\lib\.\dll-debug\libcurl.dll
2>------ Build started: Project: curl, Configuration: using libcurl DLL Debug Win32 ------
2>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.CppBuild.targets(381,5): warning MSB8028: The intermediate directory (.\dll-debug/obj\) contains files shared from another project (curltool.vcxproj).  This can lead to incorrect clean and rebuild behavior.
2>  nonblock.c
2>  rawstr.c
2>  strtoofft.c
2>  tool_binmode.c
...
2>  tool_writeout.c
2>  Generating Code...
2>  Compiling...
2>  tool_xattr.c
2>  Generating Code...
2>tool_cb_rea.obj : error LNK2019: unresolved external symbol _curlx_read referenced in function _tool_read_cb
2>dll-debug/curl.exe : fatal error LNK1120: 1 unresolved externals
========== Build: 1 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

I found the problem is that curl using curlx_read function which is not an offical libCurl API,
but the visual studio curl project didn`t add the warnless.c,when I add warnless.c to curl project,the problem fixed.

I also make a patch by adding warnless.c to curl project，tested under Visual Studio 2008 and Visual Studio 2013

diff vc6curltool.dsp.orig vc6curltool.dsp
153a154,157
> SOURCE=..\..\..\lib\warnless.c
> # End Source File
> # Begin Source File
>
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