According to the manual, I have to use the -shared flag to compile a library.<div>But I get the following error:</div><div><br></div><div>link: GHC not built to link this way: LinkDynLib</div><div><br></div><div>Guess I have to recompile ghc !</div>
<div><br><div class="gmail_quote">2010/1/3 Jean-Denis Koeck <span dir="ltr">&lt;<a href="mailto:jdkoeck@gmail.com">jdkoeck@gmail.com</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hello,<br>I&#39;m using the following cabal file to build a shared library with ghc:<br><br>Build-Type:            Simple<br>Executable libmylibrary.dll<br>  If os(windows)<br>    CPP-Options:        -DWIN32<br>  Extensions:           ForeignFunctionInterface<br>

  Build-Depends:        ...<br>  Main-Is:              libmylibrary.hs<br>  Ghc-Options:          -W --make -no-hs-main -optl-shared -optl-s -O2<br><br>The resulting library is called from a C++ graphical user interface (using Qt),<br>

which worked great so far on Windows and Linux.<br><br>However, the compilation fails on MacOS X:<br><br>Undefined symbols:<br>  &quot;_ZCMain_main_closure&quot;, referenced from:<br>      _ZCMain_main_closure$non_lazy_ptr in libHSrts.a(Main.o)<br>

  &quot;___stginit_ZCMain&quot;, referenced from:<br>      ___stginit_ZCMain$non_lazy_ptr in libHSrts.a(Main.o)<br>ld: symbol(s) not found<br>collect2: ld returned 1 exit status<br><br>I don&#39;t know much about shared libraries, even less about them on MacOS X :(<br>

Any idea ?<br><font color="#888888"><br>Jean-Denis Koeck<br>
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