rust: use a different INHIBIT_DEFAULT*_DEPS to avoid hardcoding real DEFAULT_DEPS

classes/internal-rust-cross.bbclass

@@ -1,10 +1,8 @@
 inherit cross
 
 # Otherwise we'll depend on what we provide
-INHIBIT_DEFAULT_DEPS = "1"
-
-# XXX: will this glibc be correctly parsed? (glibc doesn't provice a virtual/${TARGET_PREFIX}libc)
-DEPENDS += "virtual/${TARGET_PREFIX}gcc rust-native glibc"
+INHIBIT_DEFAULT_RUST_DEPS = "1"
+DEPENDS += "rust-native"
 PROVIDES = "virtual/${TARGET_PREFIX}rust"
 PN = "rust-cross-${TARGET_ARCH}"
 

classes/rust.bbclass

@@ -7,7 +7,7 @@ def rust_base_dep(d):
     # Taken from meta/classes/base.bbclass `base_dep_prepend` and modified to
     # use rust instead of gcc
     deps = ""
-    if not d.getVar('INHIBIT_DEFAULT_DEPS'):
+    if not d.getVar('INHIBIT_DEFAULT_RUST_DEPS'):
         if (d.getVar('HOST_SYS', True) != d.getVar('BUILD_SYS', True)):
             deps += " virtual/${TARGET_PREFIX}rust"
         else: