Does gcc45 support -arch?

[Peng Yu]

Hi Ryan,

> If you still cannot figure out where the `-arch` flags are coming from, show us a complete log of the output of running `configure` and `make`. The config.log may be helpful too.

I can not single out a simple test case. But please try compile the
following package at the following address.

http://www.tbi.univie.ac.at/~ronny/RNA/ViennaRNA/ViennaRNA-2.0.0.tar.gz

I have gcc45 active. After run configure, I run make make, then I got
error in the Perl directory. The problem is that the following
automatically generated file has the -arch argument. I don't want to
change it manually as it is automatically generated.

./Perl/Makefile.perl:44:LDFLAGS =  -Wl,-search_paths_first -arch i386
-arch x86_64 -Wl,-syslibroot,/Developer/SDKs/MacOSX10.5.sdk
-mmacosx-version-min=10.5 -fstack-protector

The gcc version:

~$ which gcc
/opt/local/bin/gcc
~$ gcc --version
gcc (GCC) 4.5.3
Copyright (C) 2010 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.

The error message:

gcc -c   -fno-common -DPERL_DARWIN -no-cpp-precomp -arch i386 -arch
x86_64 -nostdinc -B/Developer/SDKs/MacOSX10.5.sdk/usr/include/gcc
-B/Developer/SDKs/MacOSX10.5.sdk/usr/lib/gcc
-isystem/Developer/SDKs/MacOSX10.5.sdk/usr/include
-F/Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks
-mmacosx-version-min=10.5 -DUSE_SITECUSTOMIZE
-DPERL_RELOCATABLE_INCPUSH -fno-merge-constants -fno-strict-aliasing
-pipe -fstack-protector -O3   -DVERSION=\"2.0.0\"
-DXS_VERSION=\"2.0.0\"  "-I/usr/local/ActivePerl-5.14/lib/CORE"
RNA_wrap.c
gcc: unrecognized option '-no-cpp-precomp'
cc1: error: unrecognized command line option "-arch"
cc1: error: unrecognized command line option "-arch"


Please let me know if there is anything that is not cleary to you.

-- 
Regards,
Peng