clang: Update to latest 4.0 branch and fix build with recipe specific sysroot

clang was searching for <install-dir>/../lib for target libs this started to
break when rss changed the location of cross compiler to be inside package build
dir and suddenly the prefix for target sysroot and cross compiler install path
fall under same path.

Fixes issues like

| arm-oe-linux-gnueabi-clang++ -mthumb -mfpu=neon-vfpv4 -mfloat-abi=hard -mcpu=cortex-a7 -mlittle-endi
an -march=armv7a -D__extern_always_inline=inline -no-integrated-as -Wno-error=unused-command-line-argu
ment --sysroot=/mnt/a/build/tmp-glibc/work/cortexa7t2hf-neon-vfpv4-oe-linux-gnueabi/gptfdisk/1.0.1-r0/
recipe-sysroot crc32.o support.o guid.o gptpart.o mbrpart.o basicmbr.o mbr.o gpt.o bsd.o parttypes.o a
ttributes.o diskio.o diskio-unix.o cgdisk.o gptcurses.o -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -
fstack-protector-strong -Wl,-z,relro,-z,now -luuid -lncursesw -o cgdisk
| /mnt/a/build/tmp-glibc/work/cortexa7t2hf-neon-vfpv4-oe-linux-gnueabi/gptfdisk/1.0.1-r0/recipe-sysroo
t-native/usr/bin/../lib/libncursesw.so.5: file not recognized: File format not recognized
| clang-4.0: error: linker command failed with exit code 1 (use -v to see invocation)
| make: *** [Makefile:21: cgdisk] Error 1

Here it picked libncursesw.so.5 from native sysroot which is wrong for cross compile

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

1 files changed, 1 insertions, 0 deletions

diff --git a/recipes-devtools/clang/clang_git.bb b/recipes-devtools/clang/clang_git.bb
index b5331fb..218571f 100644
--- a/recipes-devtools/clang/clang_git.bb
+++ b/recipes-devtools/clang/clang_git.bb
@@ -22,6 +22,7 @@ SRC_URI = "${LLVM_GIT}/llvm.git;protocol=${LLVM_GIT_PROTOCOL};branch=${BRANCH};n
            file://0001-clang-driver-Use-lib-for-ldso-on-OE.patch;patchdir=tools/clang \
            file://0002-clang-Driver-tools.cpp-Add-lssp-and-lssp_nonshared-o.patch;patchdir=tools/clang \
            file://0003-clang-musl-ppc-does-not-support-128-bit-long-double.patch;patchdir=tools/clang \
+           file://0004-clang-Do-not-search-clang-install-dir-relative-.-lib.patch;patchdir=tools/clang \
           "
 
 SRCREV_FORMAT = "llvm_clang"