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Re: WARNING bootstrapping GFortran on Cygwin

Angelo Graziosi wrote:

> configure: WARNING: fixed-point is not supported for this target
>            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> checking whether make sets $(MAKE)... yes
> ...
> This warning was absent with the bootstrap I did 20070819 trunk-127626.

That's because this is a new feature that was just merged.  The specific
patch that added it seems to be

+[  --enable-fixed-point    enable fixed-point arithmetic extension to
+  case $target in
+    mips*-*-*)
+      enable_fixed_point=yes
+      ;;
+    *)
+      AC_MSG_WARN(fixed-point is not supported for this target,
+      enable_fixed_point=no
+      ;;
+  esac

It does seem a bit spurious to AC_MSG_WARN on all non-supported targets,
even if the user didn't attempt any --enable-fixed-point, but you can at
least silence it with --disable-fixed-point.

> Should I 'tune' the build adding something in 'configure' ?

Pretty sure this requires hardware support, e.g. on a DSP. Not the kind
of thing they make configure switches for... :)


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