[Xen-devel] [PATCH for-4.8] stubdom: make GMP aware that it's being cross-compiled

[Wei Liu <wei.liu2@xxxxxxxxxx>]

Append --build and --host flags to GMP's configure script so that it
knows it is being compiled for another architecture.

This should fix the issue that GMP doesn't compile with gcc 6, because
configure script won't try to test the host environment anymore.

Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Cc: dgdegra@xxxxxxxxxxxxx
Cc: xuquan8@xxxxxxxxxx
Cc: samuel.thibault@xxxxxxxxxxxx
Cc: jgross@xxxxxxxx
---
 stubdom/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stubdom/Makefile b/stubdom/Makefile
index d7a47f0..94ef540 100644
--- a/stubdom/Makefile
+++ b/stubdom/Makefile
@@ -171,7 +171,7 @@ gmp-$(XEN_TARGET_ARCH): gmp-$(GMP_VERSION).tar.bz2 
$(NEWLIB_STAMPFILE)
        rm $@ -rf || :
        mv gmp-$(GMP_VERSION) $@
        #patch -d $@ -p0 < gmp.patch
-       cd $@; CPPFLAGS="-isystem 
$(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf/include $(TARGET_CPPFLAGS)" 
CFLAGS="$(TARGET_CFLAGS)" CC=$(CC) $(GMPEXT) ./configure --disable-shared 
--enable-static --disable-fft --without-readline 
--prefix=$(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf
+       cd $@; CPPFLAGS="-isystem 
$(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf/include $(TARGET_CPPFLAGS)" 
CFLAGS="$(TARGET_CFLAGS)" CC=$(CC) $(GMPEXT) ./configure --disable-shared 
--enable-static --disable-fft --without-readline 
--prefix=$(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf --build=`gcc -dumpmachine` 
--host=$(GNU_TARGET_ARCH)-xen-elf
        sed -i 's/#define HAVE_OBSTACK_VPRINTF 1/\/\/#define 
HAVE_OBSTACK_VPRINTF 1/' $@/config.h
        touch $@
 
-- 
2.9.3


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