[SAC-HELP] Sac i/o problem with fortran

[Arthur Snoke]

The gcc in OS 10.6 has a default of 64 bits, in contrast with the 32 bit 
default for earlier Mac OS.  Hence, when we released 101.4, we provided 
two Mac binaries, one a "fat" binary that works on PPC and i386 macs but 
is 32 bit so has compatibility problems on 10.6, and one that is built on 
10.6 but not downward compatible.  If you build SAC from sources on 10.6, 
it will interface with the 64 bit gcc -- and Fortran routines that are 
native 64 bits or have been built with the -m64 compiler option.  I 
recently upgraded my gfortran from a 2009 version that had a default -m32 
to one that has the -m64 default.


On Sat, 5 Feb 2011, Aubreya Adams wrote:

> Hello,I have recently upgrade from a PowerPC to an Intel Mac (10.6.6) 
> and am trying to recompile some fortran codes that call upon sac i/o 
> functions.  When I try to compile the codes, I get following warning 
> about the sac library and resulting errors: ld: warning: in 
> /usr/bin/sac/lib/sacio.a, file was built for unsupported file format 
> which is not the architecture being linked (i386) Undefined symbols:
>   "_getfhv_", referenced from:     _MAIN__ in cc7sScyY.o     _MAIN__ in 
> cc7sScyY.o     _MAIN__ in cc7sScyY.o     _MAIN__ in cc7sScyY.o
>  _MAIN__ in cc7sScyY.o     _MAIN__ in cc7sScyY.o   "_rsac1_", referenced 
> from:     _MAIN__ in cc7sScyY.o ld: symbol(s) not found collect2: ld 
> returned 1 exit status In all other aspects, sac seems to be working 
> fine on my new computer.  Do any of you have insights into how I might 
> address this problem? Thank you, Aubreya Adams
> 
>