message: depends: Do not set build_subdir for qt package
  This change makes the next commit possible without exporting the PATH
  variable.
diff: @@ -6,7 +6,6 @@ $(package)_file_name=qtbase-$($(package)_suffix)
  $(package)_sha256_hash=9b9dec1f67df1f94bce2955c5604de992d529dde72050239154c56352da0907d
  $(package)_dependencies=zlib
  $(package)_linux_dependencies=freetype fontconfig libxcb
  -$(package)_build_subdir=qtbase
  $(package)_qt_libs=corelib network widgets gui plugins testlib
  $(package)_patches=fix_qt_pkgconfig.patch mac-qmake.conf fix_configure_mac.patch fix_no_printer.patch
  $(package)_patches+= fix_rcc_determinism.patch fix_riscv64_arch.patch xkb-default.patch no-xlib.patch
  @@ -257,6 +256,7 @@ define $(package)_config_cmds
  export PKG_CONFIG_SYSROOT_DIR=/ && \
  export PKG_CONFIG_LIBDIR=$(host_prefix)/lib/pkgconfig && \
  export PKG_CONFIG_PATH=$(host_prefix)/share/pkgconfig && \
  + cd qtbase && \
  ./configure $($(package)_config_opts) && \
  echo "host_build: QT_CONFIG ~= s/system-zlib/zlib" >> mkspecs/qconfig.pri && \
  echo "CONFIG += force_bootstrap" >> mkspecs/qconfig.pri && \
  @@ -268,14 +268,14 @@ define $(package)_config_cmds
  endef
  define $(package)_build_cmds
  - $(MAKE) -C src $(addprefix sub-,$($(package)_qt_libs)) && \
  - $(MAKE) -C ../qttools/src/linguist/lrelease && \
  - $(MAKE) -C ../qttools/src/linguist/lupdate && \
  - $(MAKE) -C ../qttranslations
  + $(MAKE) -C qtbase/src $(addprefix sub-,$($(package)_qt_libs)) && \
  + $(MAKE) -C qttools/src/linguist/lrelease && \
  + $(MAKE) -C qttools/src/linguist/lupdate && \
  + $(MAKE) -C qttranslations
  endef
  define $(package)_stage_cmds
  - $(MAKE) -C src INSTALL_ROOT=$($(package)_staging_dir) $(addsuffix -install_subtargets,$(addprefix sub-,$($(package)_qt_libs))) && cd .. && \
  + $(MAKE) -C qtbase/src INSTALL_ROOT=$($(package)_staging_dir) $(addsuffix -install_subtargets,$(addprefix sub-,$($(package)_qt_libs))) && \
  $(MAKE) -C qttools/src/linguist/lrelease INSTALL_ROOT=$($(package)_staging_dir) install_target && \
  $(MAKE) -C qttools/src/linguist/lupdate INSTALL_ROOT=$($(package)_staging_dir) install_target && \
  $(MAKE) -C qttranslations INSTALL_ROOT=$($(package)_staging_dir) install_subtargets
  