[XEN PATCH v2 19/29] libs/guest: rework CFLAGS

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

Remove '-Werror -Wmissing-progress -I./include $(CFLAGS_xeninclude)',
those flags are already added via "libs.mk".

Flag "-I." isn't needed, we just need to fix the #include of
"xg_core.h" as this header isn't expected to be installed.

Make use of "-iquote" instead of '-I' for double-quote included
headers.

Also, regroup the CFLAGS into the same place in the makefile.

Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
---

Notes:
    v2:
    - reviewed

 tools/libs/guest/Makefile          | 20 +++++++++-----------
 tools/libs/guest/xg_offline_page.c |  2 +-
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/tools/libs/guest/Makefile b/tools/libs/guest/Makefile
index 7707d4300f..4f2373101f 100644
--- a/tools/libs/guest/Makefile
+++ b/tools/libs/guest/Makefile
@@ -28,18 +28,13 @@ OBJS-y       += xg_core.o
 OBJS-$(CONFIG_X86) += xg_core_x86.o
 OBJS-$(CONFIG_ARM) += xg_core_arm.o
 
-CFLAGS += -I$(XEN_libxenctrl)
-
 vpath %.c ../../../xen/common/libelf
-CFLAGS += -I../../../xen/common/libelf
 
 LIBELF_OBJS += libelf-tools.o libelf-loader.o
 LIBELF_OBJS += libelf-dominfo.o
 
 OBJS-y += $(LIBELF_OBJS)
 
-$(LIBELF_OBJS) $(LIBELF_OBJS:.o=.opic): CFLAGS += -Wno-pointer-sign
-
 ifeq ($(CONFIG_X86),y) # Add libx86 to the build
 vpath %.c ../../../xen/lib/x86
 
@@ -70,10 +65,12 @@ OBJS-y                 += xg_dom_decompress_unsafe_xz.o
 OBJS-y                 += xg_dom_decompress_unsafe_zstd.o
 endif
 
-CFLAGS   += -Werror -Wmissing-prototypes
-CFLAGS   += -I. -I./include $(CFLAGS_xeninclude)
-CFLAGS   += -D__XEN_TOOLS__
-CFLAGS   += -include $(XEN_ROOT)/tools/config.h
+CFLAGS += -D__XEN_TOOLS__
+CFLAGS += -include $(XEN_ROOT)/tools/config.h
+CFLAGS += -iquote ../../../xen/common/libelf
+
+# To be able to include xc_private.h
+CFLAGS += -iquote $(XEN_libxenctrl)
 
 # Needed for posix_fadvise64() in xc_linux.c
 CFLAGS-$(CONFIG_Linux) += -D_GNU_SOURCE
@@ -92,8 +89,9 @@ ZLIB_CFLAGS :=
 ZLIB_LIBS :=
 endif
 
-xg_dom_bzimageloader.o: CFLAGS += $(ZLIB_CFLAGS)
-xg_dom_bzimageloader.opic: CFLAGS += $(ZLIB_CFLAGS)
+xg_dom_bzimageloader.o xg_dom_bzimageloader.opic: CFLAGS += $(ZLIB_CFLAGS)
+
+$(LIBELF_OBJS) $(LIBELF_OBJS:.o=.opic): CFLAGS += -Wno-pointer-sign
 
 LIBHEADER := xenguest.h
 
diff --git a/tools/libs/guest/xg_offline_page.c 
b/tools/libs/guest/xg_offline_page.c
index cfe0e2d537..c594fdba41 100644
--- a/tools/libs/guest/xg_offline_page.c
+++ b/tools/libs/guest/xg_offline_page.c
@@ -25,7 +25,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/time.h>
-#include <xg_core.h>
+#include "xg_core.h"
 
 #include "xc_private.h"
 #include "xg_private.h"
-- 
Anthony PERARD