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Re: Unable to build dll version of curl 7.36.0 on Windows

From: Mihai Hanor <>
Date: Sun, 13 Apr 2014 12:04:45 -0700 (PDT)

You are right. I can successfully build the dll from the daily snapshot. But I'm not sure if it's all right to compile src/tool_cb_rea.c without having defined BUILDING_WARNLESS_C, while we have it defined when compiling lib/warnless.c. Because src/tool_cb_rea.c includes lib/warnless.h (through curlx.h), which doesn't define it, but uses the read() function, inside tool_read_cb(). On the other hand, lib/warnless.c defines it for itself. BUILDING_WARNLESS_C only really matters when compiling warnless.h, the only one that contains the preprocessor directives that test BUILDING_WARNLESS_C and redefine functions. >________________________________ > From: Daniel Stenberg <> >To: Mihai Hanor <>; libcurl development <> >Cc: "" <> >Sent: Sunday, April 13, 2014 9:13 PM >Subject: Re: Unable to build dll version of curl 7.36.0 on Windows > > >On Sun, 13 Apr 2014, Mihai Hanor wrote: > > >> Building the dll version of curl 7.36.0 (MSVC 10), on Windows, fails when >> linking, with this error message: tool_cb_rear.obj : error LNK2019: >> unresolved external symbol curlx_read referenced in function tool_read_cb >> >> As I see it, BUILDING_WARNLESS_C should be defined in lib/warnless.h, not in >> lib/warnless.c. At least, with this modification, I can successfully build >> the dll. The affected file in the git repository is unchanged in this >> regard, so I assume this is not fixed. > >It _is_ fixed in git, just possibly not the same way you did it. I'm of course >interested in getting to know if it somehow isn't complete... > >-- > >  / > > > >

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Received on 2014-04-13