build: use host_os instead of TARGET_OS in configure output

TARGET_OS was conveninent, as a readable host name for most of our
targetted platforms, however unless we add more code to configure to
detect more hosts, it's easier just use host_os (it's also more
informative).

i.e FreeBSD master
```bash
  target os       =
  build os        = freebsd13.0
```

this PR:
```bash
  target os       = freebsd13.0
  build os        = freebsd13.0
```
This commit is contained in:
fanquake 2022-01-03 13:06:55 +08:00
parent af863b6f16
commit 1bf3809dd1
No known key found for this signature in database
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@ -1939,7 +1939,7 @@ echo " gprof enabled = $enable_gprof"
echo " werror = $enable_werror"
echo " LTO = $enable_lto"
echo
echo " target os = $TARGET_OS"
echo " target os = $host_os"
echo " build os = $build_os"
echo
echo " CC = $CC"