Package: src:gcc-5
Version: 5.2.1-15
Severity: wishlist
Tags: patch
User: helm...@debian.org
Usertags: rebootstrap

Hi,

gcc-5 already supports having some linux kernel headers at
/usr/include/$(DEB_TARGET_MULTIARCH)/asm

We'd like to move *all* of kfreebsd-kernel-headers into
/usr/include/$(DEB_TARGET_MULTIARCH), to allow cross-building linux
arches from kfreebsd and vice-versa.  Moving our headers to a multiarch
path would deconflict identically named kernel headers.

Would the attached patch be acceptable?  I have tested this with native
builds on kfreebsd-i386 and kfreebsd-amd64 (with biarch).  The change
should not affect other arches than kfreebsd.  And it is backward-
compatible with headers being in /usr/include/sys, until we actually
make the change in sid.

Thanks!

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: kfreebsd-amd64 (x86_64)

Kernel: kFreeBSD 9.0-2-amd64-xenhvm-ipsec
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
--- gcc-5-5.2.1/debian/rules2.orig	2015-08-26 09:46:51.000000000 +0000
+++ gcc-5-5.2.1/debian/rules2	2015-08-27 20:08:21.845453886 +0000
@@ -1121,11 +1121,15 @@
 	LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}$(builddir)/gcc/ada/rts \
 		../src/configure $(subst ___, ,$(CONFARGS))
 
+ifeq ($(DEB_TARGET_ARCH_OS),kfreebsd)
 	: # multilib builds without b-d on gcc-multilib (used in FLAGS_FOR_TARGET)
+	ln -sf /usr/include/$(DEB_TARGET_MULTIARCH) $(builddir)/sys-include
+else
 	if [ -d /usr/include/$(DEB_TARGET_MULTIARCH)/asm ]; then \
 	  mkdir -p $(builddir)/sys-include; \
 	  ln -sf /usr/include/$(DEB_TARGET_MULTIARCH)/asm $(builddir)/sys-include/asm; \
 	fi
+endif
 
 	touch $(configure_stamp)
 
@@ -1299,6 +1303,12 @@
 	  CC="$(BUILT_CC)" \
 	  CXX="$(BUILT_CXX)" \
 	     ../src/configure $(CONFARGS_JIT)
+
+ifeq ($(DEB_TARGET_ARCH_OS),kfreebsd)
+	: # multilib builds without b-d on gcc-multilib (used in FLAGS_FOR_TARGET)
+	ln -sf /usr/include/$(DEB_TARGET_MULTIARCH) $(builddir_jit)/sys-include
+endif
+
 	touch $(configure_jit_stamp)
 
 $(build_jit_stamp): $(configure_jit_stamp)

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