klibc: Fix build with clang

Remove gcc specific options use common one instead

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-initramfs/recipes-devtools/klibc/klibc-2.0.4/0001-Kbuild.klibc-Use-print-libgcc-file-name-instead-of-p.patch

@@ -0,0 +1,30 @@
+From f66edde8a704131d98e8783ea8d4c848e8119b20 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 26 Jul 2017 16:13:16 -0700
+Subject: [PATCH 1/3] Kbuild.klibc: Use -print-libgcc-file-name instead of
+ --print-libgcc
+
+-print-libgcc-file-name works with clang and gcc unlike --print-libgcc
+which is gcc specific
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ scripts/Kbuild.klibc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/scripts/Kbuild.klibc b/scripts/Kbuild.klibc
+index f500d535..101f86f5 100644
+--- a/scripts/Kbuild.klibc
++++ b/scripts/Kbuild.klibc
+@@ -128,7 +128,7 @@ KLIBCCFLAGS      += $(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS)  \
+ KLIBCAFLAGS      += -D__ASSEMBLY__ $(KLIBCCFLAGS)
+ KLIBCSTRIPFLAGS  += --strip-all -R .comment -R .note
+ 
+-KLIBCLIBGCC_DEF  := $(shell $(KLIBCCC) $(KLIBCCFLAGS) --print-libgcc)
++KLIBCLIBGCC_DEF  := $(shell $(KLIBCCC) $(KLIBCCFLAGS) -print-libgcc-file-name)
+ KLIBCLIBGCC	 ?= $(KLIBCLIBGCC_DEF)
+ KLIBCCRT0        := $(KLIBCOBJ)/arch/$(KLIBCARCHDIR)/crt0.o
+ KLIBCLIBC        := $(KLIBCOBJ)/libc.a
+-- 
+2.13.3
+

meta-initramfs/recipes-devtools/klibc/klibc.inc

@@ -17,6 +17,7 @@ SRC_URI = "git://git.kernel.org/pub/scm/libs/klibc/klibc.git \
            file://0001-include-linux-sysinfo.h-directly.patch \
            file://0001-mkfifo-Implement-mkfifo.patch \
            file://0001-always-use-bfd-linker.patch \
+           file://0001-Kbuild.klibc-Use-print-libgcc-file-name-instead-of-p.patch \
 "
 
 ARMPATCHES ?= ""
@@ -48,6 +49,10 @@ do_configure () {
     ln -sf "${STAGING_DIR_TARGET}${exec_prefix}" linux
 }
 
+do_configure_prepend_toolchain-clang() {
+    sed -i -e 's#$(KLIBCROSS)gcc#$(KLIBCROSS)clang#g' ${S}/Makefile
+}
+
 INHIBIT_PACKAGE_STRIP = "1"
 INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
 INSANE_SKIP_${PN} = "already-stripped"