move common QEMU_CFLAGS to configure

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id: 
diff --git a/Makefile.target b/Makefile.target
index 3efb876..53a38a3 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -3,7 +3,7 @@
 
 TARGET_PATH=$(SRC_PATH)/target-$(TARGET_BASE_ARCH)
 VPATH=$(SRC_PATH):$(TARGET_PATH):$(SRC_PATH)/hw
-QEMU_CFLAGS=-I. -I.. -I$(TARGET_PATH) -I$(SRC_PATH) -MMD -MT $@ -MP -DNEED_CPU_H
+QEMU_CFLAGS+= -I.. -I$(TARGET_PATH) -DNEED_CPU_H
 
 ifdef CONFIG_USER_ONLY
 # user emulator name
@@ -44,8 +44,6 @@
 QEMU_CFLAGS+=-mno-sdata
 endif
 
-QEMU_CFLAGS+=-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
-QEMU_CFLAGS+=-U_FORTIFY_SOURCE
 LIBS+=-lm
 ifdef CONFIG_SOLARIS
 ifdef CONFIG_NEEDS_LIBSUNMATH