[OE-core] [PATCH 3/3] libgcrypt: Fix determinism issue

[Richard Purdie]

The build was injection git information from the wrong git tree, stop this
to allow reproducible builds.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 .../libgcrypt/files/determinism.patch         | 32 +++++++++++++++++++
 .../libgcrypt/libgcrypt_1.8.5.bb              |  1 +
 2 files changed, 33 insertions(+)
 create mode 100644 meta/recipes-support/libgcrypt/files/determinism.patch

diff --git a/meta/recipes-support/libgcrypt/files/determinism.patch b/meta/recipes-support/libgcrypt/files/determinism.patch
new file mode 100644
index 00000000000..ad0b8c79500
--- /dev/null
+++ b/meta/recipes-support/libgcrypt/files/determinism.patch
@@ -0,0 +1,32 @@
+gnutls detects our outer git trees and injects that revision into its objects.
+That isn't deterministic so stop it. Also ensure we're not marked as a development
+build as its git detection is faulty.
+
+RP 2020/2/6
+
+Upstream-Status: Pending
+Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
+
+
+Index: libgcrypt-1.8.5/configure.ac
+===================================================================
+--- libgcrypt-1.8.5.orig/configure.ac
++++ libgcrypt-1.8.5/configure.ac
+@@ -45,7 +45,7 @@ m4_define([mym4_revision_dec],
+ m4_define([mym4_betastring],
+           m4_esyscmd_s([git describe --match 'libgcrypt-[0-9].*[0-9]' --long|\
+                         awk -F- '$3!=0{print"-beta"$3}']))
+-m4_define([mym4_isgit],m4_if(mym4_betastring,[],[no],[yes]))
++m4_define([mym4_isgit],[no])
+ m4_define([mym4_full_version],[mym4_version[]mym4_betastring])
+ 
+ AC_INIT([libgcrypt],[mym4_full_version],[http://bugs.gnupg.org])
+@@ -2575,7 +2575,7 @@ AM_CONDITIONAL([BUILD_DOC], [test "x$bui
+ #
+ # Provide information about the build.
+ #
+-BUILD_REVISION="mym4_revision"
++BUILD_REVISION="None"
+ AC_SUBST(BUILD_REVISION)
+ AC_DEFINE_UNQUOTED(BUILD_REVISION, "$BUILD_REVISION",
+                    [GIT commit id revision used to build this package])
diff --git a/meta/recipes-support/libgcrypt/libgcrypt_1.8.5.bb b/meta/recipes-support/libgcrypt/libgcrypt_1.8.5.bb
index 04785574f2f..4e0eb0a1697 100644
--- a/meta/recipes-support/libgcrypt/libgcrypt_1.8.5.bb
+++ b/meta/recipes-support/libgcrypt/libgcrypt_1.8.5.bb
@@ -24,6 +24,7 @@ SRC_URI = "${GNUPG_MIRROR}/libgcrypt/libgcrypt-${PV}.tar.bz2 \
            file://0001-Prefetch-GCM-look-up-tables.patch \
            file://0002-AES-move-look-up-tables-to-.data-section-and-unshare.patch \
            file://0003-GCM-move-look-up-table-to-.data-section-and-unshare-.patch \
+           file://determinism.patch \
 "
 SRC_URI[md5sum] = "348cc4601ca34307fc6cd6c945467743"
 SRC_URI[sha256sum] = "3b4a2a94cb637eff5bdebbcaf46f4d95c4f25206f459809339cdada0eb577ac3"
-- 
2.20.1