[Bug-gsl] GSL doesn't compile on Mac with Xcode 7

[Kai Zeng]

Hi All,

I recently upgraded to Xcode 7 (OS X 10.10.5). But GSL can no longer be 
compiled. I got the following errors:

/bin/sh ../libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. 
-I.. -I..    -m64 -O3 -MT mean.lo -MD -MP -MF .deps/mean.Tpo -c -o 
mean.lo mean.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -I.. -m64 -O3 -MT 
mean.lo -MD -MP -MF .deps/mean.Tpo -c mean.c -o mean.o
/var/folders/7f/ydqlzrw92kg71dh2rxl5bm3w0000gn/T//ccbvflQA.s:419:2: 
error: ambiguous instructions require an explicit suffix (could be 
'filds', or 'fildl')
        fild    (%rdi)
        ^
/var/folders/7f/ydqlzrw92kg71dh2rxl5bm3w0000gn/T//ccbvflQA.s:517:2: 
error: ambiguous instructions require an explicit suffix (could be 
'filds', or 'fildl')
        fild    -24(%rsp)
        ^
make[2]: *** [mean.lo] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Is there a way to deal with this issue? Thanks very much.

Regards,
KZ