nettle: Modify configure script to get consistent build.

The original configure script detects the header files
of openssl to set variable like 'HAVE_OPENSSL_AES_H' in
config.h and ignore the value of '--enable-openssl', this
may cause inconsistent build.

(From OE-Core rev: 17e34c083aa53914610d8eca2341e82d0e1208e2)

Signed-off-by: Haiqing Bai <Haiqing.Bai@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/meta/recipes-support/nettle/nettle-2.7.1/check-header-files-of-openssl-only-if-enable_.patch b/meta/recipes-support/nettle/nettle-2.7.1/check-header-files-of-openssl-only-if-enable_.patch
new file mode 100644
index 0000000000..38d9107ce7
--- /dev/null
+++ b/meta/recipes-support/nettle/nettle-2.7.1/check-header-files-of-openssl-only-if-enable_.patch
@@ -0,0 +1,38 @@
+From c369dd7049f5a198f8b6c96fde6e294ce5146c2f Mon Sep 17 00:00:00 2001
+From: Haiqing Bai <Haiqing.Bai@windriver.com>
+Date: Fri, 9 Dec 2016 16:16:45 +0800
+Subject: [PATCH] nettle: check header files of openssl only if
+ 'enable_openssl=yes'.
+
+The original configure script checks openssl header files to generate
+config.h even if 'enable_openssl' is not set to yes, this made inconsistent
+building for nettle.
+
+Upstream-Status: Pending
+Signed-off-by: Haiqing Bai <Haiqing.Bai@windriver.com>
+---
+ configure.ac | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 78a3d4e..4f16a98 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -603,9 +603,11 @@ AC_CHECK_ALIGNOF(uint64_t)
+ ALIGNOF_UINT64_T="$ac_cv_alignof_uint64_t"
+ AC_SUBST(ALIGNOF_UINT64_T)
+ 
+-AC_CHECK_HEADERS([openssl/blowfish.h openssl/des.h openssl/cast.h openssl/aes.h],,
+-[enable_openssl=no
+- break])
++if test "x$enable_openssl" = "xyes"; then
++  AC_CHECK_HEADERS([openssl/blowfish.h openssl/des.h openssl/cast.h openssl/aes.h],,
++  [enable_openssl=no
++  break])
++fi
+ 
+ LSH_FUNC_ALLOCA
+ LSH_FUNC_STRERROR
+-- 
+1.9.1
+