Hi Michael,
If you are building libraries that contain modules with multiple long double
types, you must use the '-mno-gnu-attribute'. We also use the '-Wno-psabi'
option, which silences the warning that you are switching long double types (if
glibc is not 2.34 or newer). We may need to tweak -Wno-psabi for use with
Fortran.
I am now at the point where the object files are also compiled correctly
for the gfortran specifics:
0000000000000000 <_gfortran_specific__abs_r17>:
0: 09 00 43 f4 lxv vs34,0(r3)
4: 48 16 40 fc xsabsqp v2,v2
8: 20 00 80 4e blr
However, the linker complains, as you said it would, about the different
formats:
/opt/at15.0/bin/ld: .libs/maxloc0_4_r16.o uses IBM long double,
.libs/_abs_r17.o uses IEEE long double
/opt/at15.0/bin/ld: failed to merge target specific data of file
.libs/_abs_r17.o
I know next to nothing about libtool, so I do not know how to
add the flags so the linker can find them.
Any pointers?
(I have not yet committed the changes because I do not want to
commit something that does not compile. If anybody wants to
take a look, it's on the ieee128 virtual machine under
/home/tkoenig/ieee ).
Regards
Thomas
