Bug #214
Configure fails in 64 bit
Description
I use the following compile script:
#!/bin/csh -f
setenv SW /sw
setenv DEST /Users/spoel/software-4.0
setenv CPPFLAGS -I${SW}/include
setenv LDFLAGS "-L${SW}/lib/x86_64 -L${SW}/lib -m64"
setenv CFLAGS "-m64 -Wall -Wno-unused -g"
setenv ASFLAGS ""
/Users/spoel/GROMACS/head/gmx/configure --prefix=${DEST} --host=x86_64-apple-dar
win --build=x86_64-apple-darwin
and it fails at the configure step with
checking whether your compiler can handle assembly files (.s)... no
configure: error: Upgrade your compiler (or disable assembly loops).
make: ** No rule to make target `install'. Stop.
From config.log:
configure:30378: result: inline
configure:30403: checking whether your compiler can handle assembly files (*.s)
configure:30422: cc -c conftestasm.s
conftestasm.s:2:bad register name `%rsp'
History
#1 Updated by Erik Lindahl about 11 years ago
Hi David,
Confirmed - I don't remember exactly what I did to get this working before, but since there's a 10% performance boost we should fix it.
In principle I think 64 bit support should be turned on by default since it is so common, but perhaps we need a configure option to disable it and use 32 bit - both for testing and to support users with old ia32 laptops?
For a distribution disk image I'd like to support fat binaries, but I don't think we want the configure script to always compile two different versions of everything, since most of us won't need 32 bit support...
Cheers,
Erik
#2 Updated by Erik Lindahl about 11 years ago
Fixed in the 4.0 branch.