Thanks for this.<div><br></div><div>I downloaded the source for TimePiece and am trying to get it running on my Mac. </div><div>When I do a cabal install, I get the output below.  </div><div>Feels like I am missing something simple, but various searches haven&#39;t turned up much so far.  Any thoughts?</div>
<div><br></div><div><br></div><div>$ cabal install</div><div>Warning: TimePiece.cabal: A package using &#39;cabal-version: &gt;=1.2&#39; must use</div><div>section syntax. See the Cabal user guide for details.</div><div>Resolving dependencies...</div>
<div>[1 of 1] Compiling Main             ( /var/folders/+E/+EbqIqRfGbKrq3GUh28kdU+++TM/-Tmp-/SDL-0.6.215336/SDL-0.6.2/Setup.lhs, /var/folders/+E/+EbqIqRfGbKrq3GUh28kdU+++TM/-Tmp-/SDL-0.6.215336/SDL-0.6.2/dist/setup/Main.o )</div>
<div><br></div><div>/var/folders/+E/+EbqIqRfGbKrq3GUh28kdU+++TM/-Tmp-/SDL-0.6.215336/SDL-0.6.2/Setup.lhs:2:3:</div><div>    Warning: In the use of `defaultUserHooks&#39;</div><div>             (imported from Distribution.Simple):</div>
<div>             Deprecated: &quot;Use simpleUserHooks or autoconfUserHooks, unless you need Cabal-1.2</div><div>             compatibility in which case you must stick with defaultUserHooks&quot;</div><div>Linking /var/folders/+E/+EbqIqRfGbKrq3GUh28kdU+++TM/-Tmp-/SDL-0.6.215336/SDL-0.6.2/dist/setup/setup ...</div>
<div>ld: warning: could not create compact unwind for .LFB3: non-standard register 5 being saved in prolog</div><div>Warning: defaultUserHooks in Setup script is deprecated.</div><div>Configuring SDL-0.6.2...</div><div>configure: WARNING: unrecognized options: --with-hc, --with-gcc</div>
<div>checking for sdl-config... /opt/local/bin/sdl-config</div><div>configure: creating ./config.status</div><div>config.status: creating <a href="http://config.mk">config.mk</a></div><div>config.status: creating SDL.buildinfo</div>
<div>config.status: creating includes/HsSDLConfig.h</div><div>configure: WARNING: unrecognized options: --with-hc, --with-gcc</div><div>Preprocessing library SDL-0.6.2...</div><div>General.hsc: In function ‘main’:</div><div>
General.hsc:60: error: ‘SDL_INIT_CDROM’ undeclared (first use in this function)</div><div>General.hsc:60: error: (Each undeclared identifier is reported only once</div><div>General.hsc:60: error: for each function it appears in.)</div>
<div>compiling dist/build/Graphics/UI/SDL/General_hsc_make.c failed (exit code 1)</div><div>command was: /usr/bin/gcc -c dist/build/Graphics/UI/SDL/General_hsc_make.c -o dist/build/Graphics/UI/SDL/General_hsc_make.o -march=i686 -m32 -fno-stack-protector -march=i686 -m32 -fno-stack-protector -march=i686 -m32 -D__GLASGOW_HASKELL__=700 -Ddarwin_BUILD_OS -Ddarwin_HOST_OS -Di386_BUILD_ARCH -Di386_HOST_ARCH -I/opt/local/include/SDL -D_THREAD_SAFE -I/Library/Frameworks/GHC.framework/Versions/7.0.3-i386/usr/lib/ghc-7.0.3/base-4.3.1.0/include -I/Library/Frameworks/GHC.framework/Versions/7.0.3-i386/usr/lib/ghc-7.0.3/include -I/Library/Frameworks/GHC.framework/Versions/7.0.3-i386/usr/lib/ghc-7.0.3/include -I/Library/Frameworks/GHC.framework/Versions/7.0.3-i386/usr/lib/ghc-7.0.3/include/</div>
<div>cabal: Error: some packages failed to install:</div><div>SDL-0.6.2 failed during the building phase. The exception was:</div><div>ExitFailure 1</div><div>SDL-gfx-0.6.0 depends on SDL-0.6.2 which failed to install.</div>
<div>SDL-image-0.6.1 depends on SDL-0.6.2 which failed to install.</div><div>SDL-ttf-0.6.1 depends on SDL-0.6.2 which failed to install.</div><div>TimePiece-0.0.3 depends on SDL-0.6.2 which failed to install.</div><div> <br>
<br></div><div><br><div class="gmail_quote">On Tue, Feb 22, 2011 at 1:05 PM, Alvaro Vilanova <span dir="ltr">&lt;<a href="mailto:alvivi@gmail.com">alvivi@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div>The log says that configuration SDL tool `sdl-config` is not installed, </div><div>probably, due to you have installed SDL framework. Cabal, or the SDL package</div><div>(I dont know who has the problem here) doesn&#39;t take into account that the</div>


<div>system is a MacOs so it doesn&#39;t search the library as a framework.</div><div><br></div><div>To solve this, you have to compile the library manually, just `./configure &amp;&amp;</div><div>make &amp;&amp; sudo make install` or install it with MacPorts. Then you will be able</div>


<div>to compile SDL projects. Nothing more. If you want to link and run your own</div><div>Haskell SDL projects on MacOs you have to dive in the next odyssey:</div><div><br></div><div>SDL has a tricky way to enable C `main` function to run graphic applications</div>


<div>on all systems. So first, we need a C function wich is going to be hooked by</div><div>SDL, and this function is going to run our Haskell application. We put this</div><div>main function in c_main.c [1].</div><div><br>


</div><div>To be compatible with all other plataforms we have keep our Main Haskell</div><div>function, so we rename this function in a FFI Module which will be compiled</div><div>only on MacOS, named HS_Main.hs [2].</div>


<div><br></div><div>Now we have to compile c_main.c with:</div><div><br></div><div>gcc -c c_main.c `sdl-config --cflags` -framework GHC</div><div><br></div><div>But, surprise, the GHC framework seems that is not well-formed, so gcc can not get the</div>


<div>header and you have to search it manually. In my case: </div><div><br></div><div>find / -name &quot;HsFFI.h&quot;</div><div>...</div><div>/Library/Frameworks/GHC.framework/Versions/612/usr/lib/ghc-6.12.3/include/HSffi.h</div>


<div>...</div><div><br></div><div>gcc -c c_main.c `sdl-config --cflags` -I/Library/Frameworks/GHC.framework/Versions/612/usr/lib/ghc-6.12.3/include/</div><div><br></div><div>And now we have a c_main.o. Next, we have to compile our HSMain which imports</div>


<div>our Main module which contains the default main function. </div><div><br></div><div>ghc --make HSMain.hs -no-hs-main c_main.o -framework Cocoa</div><div><br></div><div>And if you have the default Haskell plataform for MacOs you are going to get one surprise more:</div>


<div><br></div><div>Linking ./Main ...</div><div>ld: warning: in c_main.o, file was built for unsupported file format which is not the architecture being linked (i386)</div><div>ld: warning: in /usr/local/lib/libSDLmain.a, file was built for unsupported file format which is not the architecture being linked (i386)</div>


<div>ld: warning: in /usr/local/lib/libSDL.dylib, file was built for unsupported file format which is not the architecture being linked (i386)</div><div><br></div><div>This means that you have a 32 bits GHC but gcc compiles to 64 bits. You have</div>


<div>3 options: give up, cross-compile c_main.c and sdl to 32 bits, compile and</div><div>install a custom haskell-plataform enabling 64 bits support.</div><div><br></div><div>Good luck, you will need it!</div><div><br></div>


<div>PD: With cabal is a little more easy, see TimePiece as example [3].</div><div><br></div><div>[1] <a href="https://gist.github.com/839329" target="_blank">https://gist.github.com/839329</a></div><div>[2] <a href="https://gist.github.com/839340" target="_blank">https://gist.github.com/839340</a></div>


<div>[3] <a href="http://hackage.haskell.org/package/TimePiece" target="_blank">http://hackage.haskell.org/package/TimePiece</a></div><div><br></div><div><br></div><div class="gmail_quote"><div><div></div><div class="h5">
2011/2/21 Tom Murphy <span dir="ltr">&lt;<a href="mailto:amindfv@gmail.com" target="_blank">amindfv@gmail.com</a>&gt;</span><br>

</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div></div><div class="h5"><div>When I use Cabal to get any program which depends on the SDL library, this is the error I get.</div>
<div><br></div>

<div>&quot;</div><div>checking for sdl-config... no</div><div>checking for sdl11-config... no</div><div>
configure: error: *** SDL not found! Get SDL from <a href="http://www.libsdl.org" target="_blank">www.libsdl.org</a>.</div><div>If you already installed it, check it&#39;s in the path. If problem remains,</div><div>please send a mail to the address that appears in ./configure --version</div>



<div>indicating your platform, the version of configure script and the problem.</div><div>cabal: Error: some packages failed to install:</div><div>Raincat-1.1.1.2 depends on SDL-0.6.2 which failed to install.</div><div>SDL-0.6.2 failed during the configure step. The exception was:</div>



<div>exit: ExitFailure 1</div><div>SDL-image-0.6.1 depends on SDL-0.6.2 which failed to install.</div><div>SDL-mixer-0.6.1 depends on SDL-0.6.2 which failed to install.</div><div>&quot;</div><div><br></div><div><br></div>



<div>I have SDL 1.2.14 (correctly) installed on my system.</div><div>I&#39;d really appreciate any help with this.</div><div><br></div><font color="#888888"><div>Tom</div>
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