use better defaults for native builds

mk/package.mk

@@ -3,10 +3,6 @@
 
 all: build-all-pkgs
 
-ifeq ($(ADK_HOST_CYGWIN),y)
-EXEEXT:=		.exe
-endif
-
 # does not change CONFIGURE_ARGS in minimal mode
 ifeq ($(filter minimal,${CONFIG_STYLE}),)
 ifneq ($(ADK_DEBUG),)
@@ -25,6 +21,7 @@ CONFIGURE_ENV+=		GCC_HONOUR_COPTS=s \
 			PKG_CONFIG_LIBDIR='${STAGING_TARGET_DIR}/usr/lib/pkgconfig'
 ifeq ($(ADK_NATIVE),)
 CONFIGURE_ENV+=		${TARGET_CONFIGURE_OPTS} \
+			cross_compiling=yes \
 			ac_cv_func_realloc_0_nonnull=yes \
 			ac_cv_func_malloc_0_nonnull=yes
 endif

mk/vars.mk

@@ -18,7 +18,14 @@ STAGING_PKG_DIR:=	${BASE_DIR}/pkg_${ADK_TARGET_SYSTEM}_${ADK_TARGET_LIBC}
 STAGING_PKG_DIR_PFX:=	${BASE_DIR}/pkg_*
 STAGING_HOST_DIR:=	${BASE_DIR}/host_${CPU_ARCH}_${ADK_TARGET_LIBC}
 STAGING_HOST_DIR_PFX:=	${BASE_DIR}/host_*
+# use headers and foo-config from system
+ifneq ($(ADK_NATIVE),)
+STAGING_TARGET_DIR:=
+SCRIPT_TARGET_DIR:=	/usr/bin
+else
 STAGING_TARGET_DIR:=	${BASE_DIR}/target_${CPU_ARCH}_${ADK_TARGET_LIBC}
+SCRIPT_TARGET_DIR:=	${STAGING_TARGET_DIR}/scripts
+endif
 STAGING_TARGET_DIR_PFX:=${BASE_DIR}/target_*
 # relation from STAGING_HOST_DIR to STAGING_TARGET_DIR (for gcc to find
 # its sysroot while staying relocatable)
@@ -191,4 +198,8 @@ QUIET:=			--quiet
 endif
 FETCH_CMD?=		wget --timeout=30 $(QUIET)
 
+ifeq ($(ADK_HOST_CYGWIN),y)
+EXEEXT:=		.exe
+endif
+
 include $(TOPDIR)/mk/mirrors.mk