Rust: Disable emutls on MIPS; old GCC can't take it

Author: angelsl

make/platform/triple.mk

@@ -54,6 +54,12 @@ ifeq ($(TargetTriple),arm-linux-androideabi)
                 sync_fetch_and_umin_8
 endif
 
+# Disable emutls on MIPS
+# Rust uses GCC 4.4 to cross-compile, which doesn't have some builtins
+ifneq (,$(findstring mips,$(TargetTriple)))
+    CommonDisabledFunctions := emutls
+endif
+
 # Clear cache is builtin on aarch64-apple-ios
 # arm64 and aarch64 are synonims, but iOS targets usually use arm64 (history reasons)
 ifeq (aarch64-apple-ios,$(subst arm64,aarch64,$(TargetTriple)))