Created attachment 108796 [details]
`conftest` needs `.exe` extension in MinGW configure phase.

In cairo 1.14, it has been newly created `aclocal.float.m4`.

following conftest is forgotten `$ac_exeext`?
`conftest` is Windows executable.
In MinGW, this executable added `.exe` extension.

But following conftest is not atacched `.exe` entension.

---
if strings - conftest | grep noonsees >/dev/null ; then
   ax_cv_c_float_words_bigendian=yes
 fi
if strings - conftest | grep seesnoon >/dev/null ; then
   if test "$ax_cv_c_float_words_bigendian" = unknown; then
     ax_cv_c_float_words_bigendian=no
   else
---