add qemu host dependency

package/qemu/Makefile

@@ -10,8 +10,9 @@ PKG_MD5SUM:=		9541063d999cf9659ed7fdce71314f31
 PKG_DESCR:=		cpu and system emulator
 PKG_SECTION:=		misc
 PKG_DEPENDS:=		zlib glib
-PKG_BUILDDEP:=		gettext-tiny libiconv-tiny glib-host 
-PKG_BUILDDEP+=		qemu-host zlib glib
+PKG_BUILDDEP:=		gettext-tiny libiconv-tiny
+PKG_BUILDDEP+=		zlib glib
+HOST_BUILDDEP:=		glib-host
 PKG_URL:=		http://wwww.qemu.org/
 PKG_SITES:=		http://wiki.qemu.org/download/
 
@@ -35,9 +36,10 @@ CONFIGURE_ARGS+=	--host-cc=$(CC_FOR_BUILD) \
 			--disable-sdl \
 			--bindir=/usr/bin
 
-HOST_STYLE:=		manual
 CFLAGS_FOR_BUILD+=	-DNATIVE
+HOST_STYLE:=		manual
 HOST_CONFIGURE_ARGS+=	--host-cc=$(CC_FOR_BUILD) \
+			--prefix=${STAGING_HOST_DIR}/usr \
 			--disable-docs \
 			--disable-werror \
 			--disable-system \
@@ -45,17 +47,17 @@ HOST_CONFIGURE_ARGS+=	--host-cc=$(CC_FOR_BUILD) \
 
 host-configure:
 	cd ${WRKBUILD}; rm -f config.{cache,status}; \
-	    env ${HOST_CONFIGURE_ENV} \
-	    ${BASH} ${WRKSRC}/${CONFIGURE_PROG} \
-	    ${HOST_CONFIGURE_ARGS} $(MAKE_TRACE)
+		env ${HOST_CONFIGURE_ENV} \
+		${BASH} ${WRKSRC}/${CONFIGURE_PROG} \
+		${HOST_CONFIGURE_ARGS} $(MAKE_TRACE)
 
 host-build:
 	cd ${WRKBUILD} && env ${HOST_MAKE_ENV} ${MAKE} -f ${MAKE_FILE} \
-	    ${HOST_MAKE_FLAGS} ${HOST_ALL_TARGET} $(MAKE_TRACE)
-	
+		${HOST_MAKE_FLAGS} ${HOST_ALL_TARGET} $(MAKE_TRACE)
+       
 qemu-hostinstall:
 	cd ${WRKBUILD} && env ${HOST_MAKE_ENV} ${MAKE} -f ${MAKE_FILE} \
-	    DESTDIR='$(STAGING_HOST_DIR)' ${HOST_FAKE_FLAGS} ${HOST_INSTALL_TARGET} $(MAKE_TRACE)
+		${HOST_FAKE_FLAGS} ${HOST_INSTALL_TARGET} $(MAKE_TRACE)
 
 qemu-install:
 	$(INSTALL_DIR) $(IDIR_QEMU)/usr/share/qemu

scripts/scan-tools.sh

@@ -295,6 +295,11 @@ if ! which lzop >/dev/null 2>&1; then
 	host_build_lzop=1
 fi
 
+host_build_qemu=0
+if ! which qemu-img >/dev/null 2>&1; then
+	echo "No qemu found, will build one when required."
+	host_build_qemu=1
+fi
 
 echo "config ADK_HOST_BUILD_TOOLS" > $topdir/target/config/Config.in.prereq
 printf "\t%s\n" "boolean" >> $topdir/target/config/Config.in.prereq
@@ -314,6 +319,7 @@ if [ $host_build_ccache -eq 1 ];then printf "\t%s\n" "select ADK_HOST_BUILD_CCAC
 if [ $host_build_genext2fs -eq 1 ];then printf "\t%s\n" "select ADK_HOST_BUILD_GENEXT2FS if ADK_HOST_NEED_GENEXT2FS" >> $topdir/target/config/Config.in.prereq ;fi
 if [ $host_build_lzma -eq 1 ];then printf "\t%s\n" "select ADK_HOST_BUILD_LZMA if ADK_HOST_NEED_LZMA" >> $topdir/target/config/Config.in.prereq ;fi
 if [ $host_build_lzop -eq 1 ];then printf "\t%s\n" "select ADK_HOST_BUILD_LZOP if ADK_HOST_NEED_LZOP" >> $topdir/target/config/Config.in.prereq ;fi
+if [ $host_build_qemu -eq 1 ];then printf "\t%s\n" "select ADK_HOST_BUILD_QEMU if ADK_HOST_NEED_QEMU" >> $topdir/target/config/Config.in.prereq ;fi
 
 cd $topdir
 rm -rf tmp

target/config/Config.in

@@ -771,6 +771,7 @@ config ADK_TARGET_ROOTFS_SQUASHFS
 	bool "Compressed read-only root filesystem (squashfs)"
 	select ADK_KERNEL_SQUASHFS
 	select ADK_HOST_NEED_SQUASHFS
+	select ADK_HOST_NEED_QEMU if ADK_HARDWARE_QEMU
 	select ADK_TARGET_QEMU_WITH_BLOCK if ADK_HARDWARE_QEMU
 	depends on ADK_TARGET_WITH_MTD
 	help

target/config/Config.in.tools

@@ -97,6 +97,14 @@ config ADK_HOST_BUILD_MKSH
 	boolean
 	default n
 
+config ADK_HOST_NEED_QEMU
+	boolean
+	default n
+
+config ADK_HOST_BUILD_QEMU
+	boolean
+	default n
+
 config ADK_HOST_NEED_SYSLINUX
 	boolean
 	default n

target/microblaze/Makefile

@@ -18,7 +18,7 @@ endif
 
 ifeq ($(ADK_TARGET_FS),squashfs)
 imageinstall: $(BUILD_DIR)/root.squashfs
-	qemu-img create -f raw $(FW_DIR)/$(ROOTFSSQUASHFS) $(ADK_TARGET_MTD_SIZE)
+	env PATH=$(HOST_PATH) qemu-img create -f raw $(FW_DIR)/$(ROOTFSSQUASHFS) $(ADK_TARGET_MTD_SIZE)
 	dd conv=notrunc if=$(BUILD_DIR)/root.squashfs of=$(FW_DIR)/$(ROOTFSSQUASHFS)
 	@cp $(KERNEL) $(FW_DIR)/$(TARGET_KERNEL)
 ifneq ($(ADK_HARDWARE_QEMU),)