gnu: x265: Fix building on armhf-linux and aarch64-linux.

* gnu/packages/video.scm (x265)[source]: Add patch.
[arguments]: Enable PIC on armhf-linux.
* gnu/packages/patches/x265-fix-ppc64le-build.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

gnu/local.mk

@@ -1194,6 +1194,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/wpa-supplicant-fix-nonce-reuse.patch	\
   %D%/packages/patches/wpa-supplicant-krack-followups.patch	\
   %D%/packages/patches/wxmaxima-do-not-use-old-gnuplot-parameters.patch	\
+  %D%/packages/patches/x265-fix-ppc64le-build.patch		\
   %D%/packages/patches/xboing-CVE-2004-0149.patch		\
   %D%/packages/patches/xdotool-fix-makefile.patch               \
   %D%/packages/patches/xf86-video-ark-remove-mibstore.patch	\

gnu/packages/patches/x265-fix-ppc64le-build.patch

@@ -0,0 +1,25 @@
+https://sources.debian.org/data/main/x/x265/2.8-3/debian/patches/0003-Fix-build-error-on-on-ppc64le.patch
+
+This patch also fixes building on armhf-linux and aarch64-linux
+
+From: Jayashree <jayashree.c@multicorewareinc.com>
+Date: Fri, 25 May 2018 10:26:05 +0530
+Subject: Fix build error on on ppc64le
+
+---
+ source/common/param.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/source/common/param.cpp b/source/common/param.cpp
+index 31bcbc7..4a6d0c8 100644
+--- a/source/common/param.cpp
++++ b/source/common/param.cpp
+@@ -633,7 +633,7 @@ int x265_param_parse(x265_param* p, const char* name, const char* value)
+         if (bValueWasNull)
+             p->cpuid = atobool(value);
+         else
+-            p->cpuid = parseCpuName(value, bError);
++            p->cpuid = parseCpuName(value, bError, false);
+ #endif
+     }
+     OPT("fps")

gnu/packages/video.scm

@@ -44,6 +44,7 @@
 (define-module (gnu packages video)
   #:use-module (ice-9 match)
   #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-26)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix utils)
   #:use-module (guix packages)
@@ -393,6 +394,7 @@ (define-public x265
         (sha256
          (base32
           "0qx8mavwdzdpkkby7n29i9av7zsnklavacwfz537mf62q2pzjnbf"))
+        (patches (search-patches "x265-fix-ppc64le-build.patch"))
         (modules '((guix build utils)))
         (snippet '(begin
                     (delete-file-recursively "source/compat/getopt")
@@ -401,7 +403,9 @@ (define-public x265
     (arguments
      `(#:tests? #f ; tests are skipped if cpu-optimized code isn't built
        ;; Currently the source code doesn't check for aarch64.
-       ,@(if (string-prefix? "aarch64" (or (%current-target-system) (%current-system)))
+       ,@(if (any (cute string-prefix? <> (or (%current-system)
+                                              (%current-target-system)))
+                  '("armhf" "aarch64"))
            '(#:configure-flags '("-DENABLE_PIC=TRUE"))
            '())
        #:phases