build: Move environment variables into $(package)_config_env

depends/funcs.mk

@@ -137,6 +137,7 @@ $(1)_config_env+=$($(1)_config_env_$(host_arch)_$(host_os)) $($(1)_config_env_$(
 
 $(1)_config_env+=PKG_CONFIG_LIBDIR=$($($(1)_type)_prefix)/lib/pkgconfig
 $(1)_config_env+=PKG_CONFIG_PATH=$($($(1)_type)_prefix)/share/pkgconfig
+$(1)_config_env+=PKG_CONFIG_SYSROOT_DIR=/
 $(1)_config_env+=CMAKE_MODULE_PATH=$($($(1)_type)_prefix)/lib/cmake
 $(1)_config_env+=PATH=$(build_prefix)/bin:$(PATH)
 $(1)_build_env+=PATH=$(build_prefix)/bin:$(PATH)

depends/packages/qt.mk

@@ -33,6 +33,7 @@ $(package)_extra_sources  = $($(package)_qttranslations_file_name)
 $(package)_extra_sources += $($(package)_qttools_file_name)
 
 define $(package)_set_vars
+$(package)_config_env = QT_MAC_SDK_NO_VERSION_CHECK=1
 $(package)_config_opts_release = -release
 $(package)_config_opts_release += -silent
 $(package)_config_opts_debug = -debug
@@ -261,9 +262,6 @@ define $(package)_preprocess_cmds
 endef
 
 define $(package)_config_cmds
-  export PKG_CONFIG_SYSROOT_DIR=/ && \
-  export PKG_CONFIG_LIBDIR=$(host_prefix)/lib/pkgconfig && \
-  export QT_MAC_SDK_NO_VERSION_CHECK=1 && \
   cd qtbase && \
   ./configure -top-level $($(package)_config_opts)
 endef