libgcrypt: fix compile error with '-O2' in sysroot path

Characters like '-O2' or '-Ofast' will be replaced by '-O1' when
compiling cipher. If we are cross compiling libgcrypt and sysroot
contains such characters, we would get compile errors because the
sysroot path has been modified.

Fix this by adding whitespaces before and after the original matching
pattern in the sed command.

[YOCTO #5628]

(From OE-Core rev: 84514834417e022660e7b3a540910d2d6fb12337)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/libgcrypt/files/libgcrypt-fix-building-error-with-O2-in-sysroot-path.patch

@@ -0,0 +1,32 @@
+Upstream-Status: Pending
+
+libgcrypt: fix building error with '-O2' in sysroot path
+
+Characters like '-O2' or '-Ofast' will be replaced by '-O1' when compiling cipher.
+If we are cross compiling libgcrypt and sysroot contains such characters, we would
+get compile errors because the sysroot path has been modified.
+
+Fix this by adding blank spaces before and after the original matching pattern in the
+sed command.
+
+Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
+---
+ cipher/Makefile.am |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/cipher/Makefile.am b/cipher/Makefile.am
+index 76cdc96..9a89792 100644
+--- a/cipher/Makefile.am
++++ b/cipher/Makefile.am
+@@ -69,7 +69,7 @@ rfc2268.c \
+ camellia.c camellia.h camellia-glue.c
+ 
+ if ENABLE_O_FLAG_MUNGING
+-o_flag_munging = sed -e 's/-O\([2-9s][2-9s]*\)/-O1/' -e 's/-Ofast/-O1/g'
++o_flag_munging = sed -e 's/ -O\([2-9s][2-9s]*\) / -O1 /' -e 's/ -Ofast / -O1 /g'
+ else
+ o_flag_munging = cat
+ endif
+-- 
+1.7.9.5
+

meta/recipes-support/libgcrypt/libgcrypt.inc

@@ -11,7 +11,8 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=94d55d512a9ba36caa9b7df079bae19f \
 DEPENDS = "libgpg-error libcap"
 
 SRC_URI = "ftp://ftp.gnupg.org/gcrypt/libgcrypt/libgcrypt-${PV}.tar.gz \
-           file://add-pkgconfig-support.patch"
+           file://add-pkgconfig-support.patch \
+           file://libgcrypt-fix-building-error-with-O2-in-sysroot-path.patch"
 
 inherit autotools binconfig pkgconfig