z3 package was initially added with a depends on !BR2_nios2. This was
detected by testing with "./utils/test-pkg -a -p z3". It turned out that
few other architectures are also not supported. The actual z3
requirement is to have a libc that provides <fenv.h> AND also provides
all the four macros: FE_DOWNWARD, FE_TONEAREST, FE_TOWARDZERO,
FE_UPWARD.
Quoting glibc manual, or "man fenv":
https://www.gnu.org/software/libc/manual/html_node/Rounding.html
"fenv.h defines constants which you can use to refer to the various
rounding modes. Each one will be defined if and only if the FPU
supports the corresponding rounding mode."
This patch introduces _ARCH_SUPPORTS to limit only to the architectures
with a FPU that has those rounding modes.
Fixes:
- http://autobuild.buildroot.net/results/2809dd1ae2f3ada8ee7b3f3e388341c7cfb633fb
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
415c7af079