Merge bitcoin#32215: depends: Fix cross-compiling on macOS

d0cce41 depends: Fix `mv` command compatibility with macOS (Hennadii Stepanov)
690f5da depends: Specify Objective C/C++ compilers for `native_qt` package (Hennadii Stepanov)

Pull request description:

  This PR:
  1. Specifies Objective C/C++ compilers for `native_qt` package.
  2. Removes the `-t` option, which is incompatible with `mv` on macOS.

  Fixes bitcoin#32208.

ACKs for top commit:
  janb84:
    ACK [d0cce41](bitcoin@d0cce41)
  fanquake:
    ACK d0cce41

Tree-SHA512: a224407f393cc9a90c73ce156674ec90ed74f59104849b312a993218e28f76c3f97335eed6bd5a3e552fd50002a59aa2de775d8ed7557a74c25202a638bfda8c

Author: fanquake

depends/packages/native_qt.mk

@@ -88,6 +88,10 @@ $(package)_config_opts += -no-feature-qtplugininfo
 
 $(package)_config_env := CC="$$(build_CC)"
 $(package)_config_env += CXX="$$(build_CXX)"
+ifeq ($(build_os),darwin)
+$(package)_config_env += OBJC="$$(build_CC)"
+$(package)_config_env += OBJCXX="$$(build_CXX)"
+endif
 
 $(package)_cmake_opts := -DCMAKE_EXE_LINKER_FLAGS="$$(build_LDFLAGS)"
 ifneq ($(V),)
@@ -148,5 +152,5 @@ endef
 
 define $(package)_postprocess_cmds
   rm -rf doc/ && \
-  mv -t .. translations/
+  mv translations/ ..
 endef