On 3/30/12 5:52 PM, Stefan Bruda wrote:
> Hello,
>
> I am attempting to build metacity on 10.7 (just a random package
> toward bundle-gnome).  Using fink the configuration goes fine and then
> make fails as follows (/opt/sw is my fink prefix):
>
>      make
>      make  all-recursive
>      Making all in src
>
>      [ ... ]
>
>      gcc -DHAVE_CONFIG_H -I. -I.. -I./include 
> -DMETACITY_LIBEXECDIR=\"/opt/sw/lib/metacity\" -DHOST_ALIAS=\"\" 
> -DMETACITY_LOCALEDIR=\"/opt/sw/share/locale\" 
> -DMETACITY_PKGDATADIR=\"/opt/sw/share/metacity\" 
> -DMETACITY_DATADIR=\"/opt/sw/share\" -DG_LOG_DOMAIN=\"metacity\" 
> -DSN_API_NOT_YET_FROZEN=1 -I/opt/sw/include/glib-2.0 
> -I/opt/sw/lib/glib-2.0/include -I/opt/sw/include -I/opt/sw/include/gtk-2.0 
> -I/opt/sw/lib/gtk-2.0/include -I/opt/sw/include/atk-1.0 
> -I/opt/sw/include/cairo -I/opt/sw/include/pango-1.0 
> -I/opt/sw/include/freetype2 -I/opt/sw/include/gconf/2 
> -I/opt/sw/include/startup-notification-1.0 -I/opt/sw/include/libgtop-2.0 
> -I/usr/X11R6/include -I/usr/X11/include -D_REENTRANT  
> -I/opt/sw/lib/fontconfig2/include -I/opt/sw/include  -Os -Wall 
> -Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes 
> -Wnested-externs -Wpointer-arith -Wcast-align -Wsign-compare -Wall -Werror 
> -ansi -MT bell.o -MD -MP -MF .deps/bell.Tpo -c -o bell.o `test -f 
> 'core/bell.c' || echo './'`core/bell.c
>      core/async-getprop.c:218:8: error: cast from 'XPointer' (aka 'char *') 
> to 'AgPerDisplayData *'
>            (aka 'struct _AgPerDisplayData *') increases required alignment 
> from 1 to 8 [-Werror,-Wcast-align]
>        dd = (AgPerDisplayData*) data;
>             ^~~~~~~~~~~~~~~~~~~ ~~~~
>      core/async-getprop.c:277:11: error: cast from 'char *' to 
> 'xGetPropertyReply *' increases required alignment from
>            1 to 4 [-Werror,-Wcast-align]
>        reply = (xGetPropertyReply *)
>                ^~~~~~~~~~~~~~~~~~~~~
>      core/async-getprop.c:385:24: error: cast from 'char *' to 'long *' 
> increases required alignment from 1 to 8
>            [-Werror,-Wcast-align]
>                            *(long*) lptr = *(CARD32*) netdata;
>                             ^~~~~~~ ~~~~
>      core/async-getprop.c:385:40: error: cast from 'char *' to 'CARD32 *' 
> (aka 'unsigned int *') increases required
>            alignment from 1 to 4 [-Werror,-Wcast-align]
>                            *(long*) lptr = *(CARD32*) netdata;
>                                             ^~~~~~~~~ ~~~~~~~
>      core/async-getprop.c:539:3: error: cast from 'char *' to 
> 'xGetPropertyReq *' increases required alignment from 1
>            to 4 [-Werror,-Wcast-align]
>        GetReq (GetProperty, req);
>        ^~~~~~~~~~~~~~~~~~~~~~~~~
>
> Fair enough, except that I want to do in-place fixes and so I go by
> hand into the src directory and issue the same as above.  To my
> amazement, the compilation simply succeeds:
>
>      <  godel-v:~>  cd 
> /opt/sw/src/fink.build/metacity-2.28.1-2/metacity-2.28.1/src
>      <  godel-v:metacity-2.28.1/src>  gcc -DHAVE_CONFIG_H -I. -I.. 
> -I./include -DMETACITY_LIBEXECDIR=\"/opt/sw/lib/metacity\" -DHOST_ALIAS=\"\" 
> -DMETACITY_LOCALEDIR=\"/opt/sw/share/locale\" 
> -DMETACITY_PKGDATADIR=\"/opt/sw/share/metacity\" 
> -DMETACITY_DATADIR=\"/opt/sw/share\" -DG_LOG_DOMAIN=\"metacity\" 
> -DSN_API_NOT_YET_FROZEN=1 -I/opt/sw/include/glib-2.0 
> -I/opt/sw/lib/glib-2.0/include -I/opt/sw/include -I/opt/sw/include/gtk-2.0 
> -I/opt/sw/lib/gtk-2.0/include -I/opt/sw/include/atk-1.0 
> -I/opt/sw/include/cairo -I/opt/sw/include/pango-1.0 
> -I/opt/sw/include/freetype2 -I/opt/sw/include/gconf/2 
> -I/opt/sw/include/startup-notification-1.0 -I/opt/sw/include/libgtop-2.0 
> -I/usr/X11R6/include -I/usr/X11/include -D_REENTRANT  
> -I/opt/sw/lib/fontconfig2/include -I/opt/sw/include  -Os -Wall 
> -Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes 
> -Wnested-externs -Wpointer-arith -Wcast-align -Wsign-compare -Wall -Werror 
> -ansi -MT bell.o -MD -MP -MF .deps/bell.Tpo -c -o bell.o `test -f 
> 'core/bell.c' || echo './'`core/bell.c
>
> In fact I can just type make in the root of the distribution
> (/opt/sw/src/fink.build/metacity-2.28.1-2/metacity-2.28.1/src)
> completes fine.
>
> I am sure I am missing something, but what would be the difference
> between the fink environment and the shell?  Advice is appreciated.
>
> Many thanks in advance,
> Stefan
>
You're changing the compilers.

In the Fink build environment, the default setup is to have clang as the 
"cc", "gcc", ... compiler, and clang++ as the "c++", "g++", ... compiler.

When you're not using the Fink environment, the defaults depend on your 
Xcode version.  Before 4.3, "cc" and "gcc" pointed to llvm-gcc, and 
"c++" and "g++" pointed to llvm-g++.  On 4.3.x they're mixed:

Alexanders-MacBook-Pro:fink hansen$ cc --version
Apple clang version 3.1 (tags/Apple/clang-318.0.58) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin11.3.0
Thread model: posix
Alexanders-MacBook-Pro:fink hansen$ gcc --version
i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 
5658) (LLVM build 2336.9.00)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Alexanders-MacBook-Pro:fink hansen$ c++ --version
Apple clang version 3.1 (tags/Apple/clang-318.0.58) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin11.3.0
Thread model: posix
Alexanders-MacBook-Pro:fink hansen$ g++ --version
i686-apple-darwin11-llvm-g++-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 
5658) (LLVM build 2336.9.00)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

-- 
Alexander Hansen, Ph.D.
Fink User Liaison
http://finkakh.wordpress.com/2012/02/21/got-job/



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