[ptxdist] [PATCH 3/5 v3] [busybox] Pass extra platform CFLAGS to busybox make

[Remy Bohmer <linux@bohmer.net>]

From: Remy Bohmer <remy.bohmer@oce.com>

Busybox make is not properly called in case:
* compiler name tuple does not match target tuple (as used in multilib
 compilers, for example: i686-pc-linux-gnu-gcc can compile for
 x86_64-unknown-linux-gnu targets. To solve this the 'SUBARCH' need to be
 set)
* CONFIG_EXTRA_CFLAGS need to e set to select the proper sysroot to
 compile against in busybox
* LDFLAGS to link against the proper sysroot.

Signed-off-by: Remy Bohmer <linux@bohmer.net>
---
 v2: Reworked review comments from Michael Olbrich
 v3: Convert spaces->tabs + Added '\' after CFLAGS line
     checked after build if build-target/busybox/busybox remains unstripped.

 rules/busybox.make |   13 ++++++++-----
 1 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/rules/busybox.make b/rules/busybox.make
index 536aa80..54b5367 100644
--- a/rules/busybox.make
+++ b/rules/busybox.make
@@ -49,14 +49,17 @@ $(STATEDIR)/busybox.prepare:
 
 BUSYBOX_MAKE_OPT := \
 	ARCH=$(PTXCONF_ARCH_STRING) \
+	SUBARCH=$(PTXCONF_ARCH_STRING) \
 	CROSS_COMPILE=$(COMPILER_PREFIX) \
-	CONFIG_EXTRA_CFLAGS="$(CROSS_CFLAGS)" \
-	HOSTCC=$(HOSTCC) \
+	HOSTCC=$(HOSTCC)
+
+BUSYBOX_MAKE_ENV := \
+	$(CROSS_ENV) \
+	CFLAGS="$(CROSS_CFLAGS) -I$(KERNEL_HEADERS_INCLUDE_DIR)" \
 	SKIP_STRIP=y
 
-ifdef PTXCONF_BUSYBOX_RFKILL
-BUSYBOX_MAKE_OPT += CFLAGS="-I$(KERNEL_HEADERS_INCLUDE_DIR)"
-endif
+BUSYBOX_INSTAL_ENV := \
+	$(BUSYBOX_MAKE_ENV)
 
 BUSYBOX_INSTALL_OPT := \
 	$(BUSYBOX_MAKE_OPT) \
-- 
1.7.0.4



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