kbuild: Use -nostdinc in compile tests (workaround for #717557)

svn path=/dists/sid/linux/; revision=20729

debian/changelog

@@ -4,6 +4,9 @@ linux (3.11.5-2) UNRELEASED; urgency=low
   * [armhf] Enable Xen and virtio for armmp and armmp-lpae as well as KVM for
     armmp-lpae only.
 
+  [ Ben Hutchings ]
+  * kbuild: Use -nostdinc in compile tests (workaround for #717557)
+
  -- Ian Campbell <ijc@hellion.org.uk>  Sat, 19 Oct 2013 10:34:53 +0100
 
 linux (3.11.5-1) unstable; urgency=low

debian/patches/bugfix/all/kbuild-use-nostdinc-in-compile-tests.patch

@@ -0,0 +1,81 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Sat, 19 Oct 2013 19:43:35 +0100
+Subject: kbuild: Use -nostdinc in compile tests
+Bug-Debian: http://bugs.debian.org/717557
+Forwarded: no
+
+Debian's gcc 4.8 pre-includes <stdc-predef.h> by default, which in
+turn includes <bits/predefs.h>.  This fails when building a 64-bit
+kernel and only 32-bit C library headers installed.
+
+The -nostdinc option disables this, though it isn't explicitly
+documented.  This option is already used when actually building
+the kernel.
+
+--- a/scripts/Kbuild.include
++++ b/scripts/Kbuild.include
+@@ -110,12 +110,12 @@ as-instr = $(call try-run,\
+ # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
+ 
+ cc-option = $(call try-run,\
+-	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
++	$(CC) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
+ 
+ # cc-option-yn
+ # Usage: flag := $(call cc-option-yn,-march=winchip-c6)
+ cc-option-yn = $(call try-run,\
+-	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
++	$(CC) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
+ 
+ # cc-option-align
+ # Prefix align with either -falign or -malign
+@@ -125,16 +125,17 @@ cc-option-align = $(subst -functions=0,,
+ # cc-disable-warning
+ # Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
+ cc-disable-warning = $(call try-run,\
+-	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
++	$(CC) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
+ 
+ # cc-version
+ # Usage gcc-ver := $(call cc-version)
+-cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
++cc-version = $(shell $(CONFIG_SHELL) \
++	$(srctree)/scripts/gcc-version.sh $(CC) $(NOSTDINC_FLAGS))
+ 
+ # cc-fullversion
+ # Usage gcc-ver := $(call cc-fullversion)
+ cc-fullversion = $(shell $(CONFIG_SHELL) \
+-	$(srctree)/scripts/gcc-version.sh -p $(CC))
++	$(srctree)/scripts/gcc-version.sh -p $(CC) $(NOSTDINC_FLAGS))
+ 
+ # cc-ifversion
+ # Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
+@@ -148,7 +149,7 @@ cc-ldoption = $(call try-run,\
+ # ld-option
+ # Usage: LDFLAGS += $(call ld-option, -X)
+ ld-option = $(call try-run,\
+-	$(CC) -x c /dev/null -c -o "$$TMPO" ; $(LD) $(1) "$$TMPO" -o "$$TMP",$(1),$(2))
++	$(CC) $(NOSTDINC_FLAGS) -x c /dev/null -c -o "$$TMPO" ; $(LD) $(1) "$$TMPO" -o "$$TMP",$(1),$(2))
+ 
+ # ar-option
+ # Usage: KBUILD_ARFLAGS := $(call ar-option,D)
+--- a/Makefile
++++ b/Makefile
+@@ -578,6 +578,8 @@ else
+ KBUILD_CFLAGS	+= -O2
+ endif
+ 
++NOSTDINC_FLAGS += -nostdinc
++
+ include $(srctree)/arch/$(SRCARCH)/Makefile
+ 
+ ifdef CONFIG_READABLE_ASM
+@@ -646,7 +648,7 @@ KBUILD_CFLAGS += $(call cc-option, -fno-
+ endif
+ 
+ # arch Makefile may override CC so keep this after arch Makefile is included
+-NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
++NOSTDINC_FLAGS += -isystem $(shell $(CC) -print-file-name=include)
+ CHECKFLAGS     += $(NOSTDINC_FLAGS)
+ 
+ # warn about C99 declaration after statement

debian/patches/series

@@ -79,3 +79,4 @@ bugfix/m68k/atari-irqs.patch
 bugfix/all/compiler-gcc-4-add-quirk-for-asm-goto-miscompilation-bug.patch
 bugfix/all/crypto-ansi_cprng-Fix-off-by-one-error-in-non-block-.patch
 features/all/mvsas-Recognise-device-subsystem-9485-9485-as-88SE94.patch
+bugfix/all/kbuild-use-nostdinc-in-compile-tests.patch