crossdev: force off USE=hardened where no SSP

This fixes e.g. hppa2.0-unknown-linux-gnu where the stack
grows up and hence we lack SSP, but also -fstack-clash-protection
which is forced on by USE=hardened.

glibc failed to build before this with:
```
checking for broken __attribute__((alias()))... yes
configure: error: working alias attribute support required
 * ERROR: cross-hppa2.0-unknown-linux-gnu/glibc-2.35-r4::crossdev failed (configure phase):
```

config.log:
```
configure:4199: checking if compiler warns about alias for function with incompatible types
cc1: error: '-fstack-clash-protection' is not supported on targets where the stack grows from lower to higher addresses [-Werror]
conftest.c:9:34: error: 'foo_alias' alias between functions of incompatible types 'int(const void *, int)' and 'int (*(void))(const void *, int)' [-Werror=attribute-alias=]
    9 | extern __typeof (__redirect_foo) foo_alias __attribute__ ((alias ("foo")));
      |                                  ^~~~~~~~~
conftest.c:4:28: note: aliased declaration here
    4 | __typeof (__redirect_foo) *foo_impl (void)
      |                            ^~~~~~~~
cc1: all warnings being treated as errors
```

Signed-off-by: Sam James <sam@gentoo.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/crossdev b/crossdev
index 7ec9a9d..a7566ba 100755
--- a/crossdev
+++ b/crossdev
@@ -437,7 +437,8 @@ parse_target() {
 	# Running a hardened profile on the host forces ssp #831165
 	if [[ $ssp_support = "no" ]]; then
 		# ssp is >=gcc-6, nossp is <gcc-6
-		GMASK+=" ssp -nossp"
+		# blacklist hardened too because it'll force -fstack-clash-protection
+		GMASK+=" ssp hardened -nossp"
 		GFORCE+=" nossp"
 	fi
 }