Bug 1745129 - Use `--gcc-toolchain=...` rather than `-gcc-toolchain ...`. r=firefox-build-system-reviewers,andi

Apparently the latter doesn't work anymore with clang 14.

Differential Revision: https://phabricator.services.mozilla.com/D133330

build/autoconf/android.m4

@@ -12,7 +12,7 @@ case "$target" in
 
     # clang will do any number of interesting things with host tools unless we tell
     # it to use the NDK tools.
-    extra_opts="-gcc-toolchain $(dirname $(dirname $TOOLCHAIN_PREFIX))"
+    extra_opts="--gcc-toolchain=$(dirname $(dirname $TOOLCHAIN_PREFIX))"
     CPPFLAGS="$extra_opts -D__ANDROID_API__=$android_version $CPPFLAGS"
     ASFLAGS="$extra_opts $ASFLAGS"
     LDFLAGS="$extra_opts $LDFLAGS"

build/moz.configure/android-ndk.configure

@@ -376,8 +376,7 @@ def extra_toolchain_flags(
         android_system,
         "-isystem",
         os.path.join(android_sysroot, "usr", "include"),
-        "-gcc-toolchain",
-        toolchain_dir,
+        "--gcc-toolchain={}".format(toolchain_dir),
         "-D__ANDROID_API__=%d" % android_version,
     ]
     return flags