From 0226ddecd5ae8c9f1d714c1e604f8a4e547e4359 Mon Sep 17 00:00:00 2001
From: Kevin Mihelich <kevin@archlinuxarm.org>
Date: Tue, 26 Apr 2016 00:10:38 +0000
Subject: [PATCH] added community/libvolk

---
 .../0001-Use-NEON-for-ARMv7-only.patch        | 59 +++++++++++++++++++
 community/libvolk/PKGBUILD                    | 52 ++++++++++++++++
 2 files changed, 111 insertions(+)
 create mode 100644 community/libvolk/0001-Use-NEON-for-ARMv7-only.patch
 create mode 100644 community/libvolk/PKGBUILD

diff --git a/community/libvolk/0001-Use-NEON-for-ARMv7-only.patch b/community/libvolk/0001-Use-NEON-for-ARMv7-only.patch
new file mode 100644
index 000000000..ad00acc3e
--- /dev/null
+++ b/community/libvolk/0001-Use-NEON-for-ARMv7-only.patch
@@ -0,0 +1,59 @@
+From ddace4afd21c7c41ab76b849346425d7b412a38e Mon Sep 17 00:00:00 2001
+From: Kevin Mihelich <kevin@archlinuxarm.org>
+Date: Mon, 25 Apr 2016 18:03:26 -0600
+Subject: [PATCH] Use NEON for ARMv7 only
+
+Signed-off-by: Kevin Mihelich <kevin@archlinuxarm.org>
+---
+ lib/CMakeLists.txt | 14 +++++++++++---
+ 1 file changed, 11 insertions(+), 3 deletions(-)
+
+diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
+index 1accb59..19746d5 100644
+--- a/lib/CMakeLists.txt
++++ b/lib/CMakeLists.txt
+@@ -250,6 +250,14 @@ if(NOT CPU_IS_x86)
+ endif(NOT CPU_IS_x86)
+ 
+ ########################################################################
++# if the CPU is not ARMv7, eliminate NEON
++########################################################################
++
++if(NOT ${CMAKE_SYSTEM_PROCESSOR} MATCHES "armv7.*")
++    OVERRULE_ARCH(neon "Architecture is not ARMv7")
++endif(NOT ${CMAKE_SYSTEM_PROCESSOR} MATCHES "armv7.*")
++
++########################################################################
+ # implement overruling in the ORC case,
+ # since ORC always passes flag detection
+ ########################################################################
+@@ -414,7 +422,7 @@ include_directories(
+ # Handle ASM support
+ #  on by default, but let users turn it off
+ ########################################################################
+-if(${CMAKE_VERSION} VERSION_GREATER "2.8.9")
++if((${CMAKE_VERSION} VERSION_GREATER "2.8.9") AND (${CMAKE_SYSTEM_PROCESSOR} MATCHES "armv7.*"))
+   set(ASM_ARCHS_AVAILABLE "neon")
+ 
+   set(FULL_C_FLAGS "${CMAKE_C_FLAGS}" "${CMAKE_CXX_COMPILER_ARG1}")
+@@ -443,7 +451,7 @@ if(${CMAKE_VERSION} VERSION_GREATER "2.8.9")
+     message(STATUS "asm flags: ${CMAKE_ASM_FLAGS}")
+   endforeach(ARCH)
+ 
+-else(${CMAKE_VERSION} VERSION_GREATER "2.8.9")
++else((${CMAKE_VERSION} VERSION_GREATER "2.8.9") AND (${CMAKE_SYSTEM_PROCESSOR} MATCHES "armv7.*"))
+   message(STATUS "Not enabling ASM support. CMake >= 2.8.10 required.")
+   foreach(machine_name ${available_machines})
+     string(REGEX MATCH "neon" NEON_MACHINE ${machine_name})
+@@ -451,7 +459,7 @@ else(${CMAKE_VERSION} VERSION_GREATER "2.8.9")
+       message(FATAL_ERROR "CMake >= 2.8.10 is required for ARM NEON support")
+     endif()
+   endforeach()
+-endif(${CMAKE_VERSION} VERSION_GREATER "2.8.9")
++endif((${CMAKE_VERSION} VERSION_GREATER "2.8.9") AND (${CMAKE_SYSTEM_PROCESSOR} MATCHES "armv7.*"))
+ 
+ ########################################################################
+ # Handle orc support
+-- 
+2.8.0
+
diff --git a/community/libvolk/PKGBUILD b/community/libvolk/PKGBUILD
new file mode 100644
index 000000000..1f1abaf5e
--- /dev/null
+++ b/community/libvolk/PKGBUILD
@@ -0,0 +1,52 @@
+# $Id$
+# Maintainer: Kyle Keen <keenerd@gmail.com>
+
+# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
+#  - patch to not build neon on !ARMv7
+
+pkgname=libvolk
+pkgver=1.2.2
+pkgrel=1
+pkgdesc="The Vector-Optimized Library of Kernels from Gnuradio"
+arch=('i686' 'x86_64')
+url="http://libvolk.org/"
+license=('GPL3')
+depends=('gcc-libs' 'boost-libs' 'orc' 'python2')
+makedepends=('boost' 'cmake' 'python2-cheetah')
+source=("http://libvolk.org/releases/volk-$pkgver.tar.gz"
+        '0001-Use-NEON-for-ARMv7-only.patch')
+md5sums=('540e2c55e525c04920e0e63d0de530b3'
+         'da3b1d0b0f859697c743563ee55152d3')
+
+# doxygen for docs
+
+prepare() {
+  cd "$srcdir/volk-$pkgver"
+  sed -i -e "s|#![ ]*/usr/bin/env python$|&2|" $(find ./ -name '*.py')
+  patch -p1 -i ../0001-Use-NEON-for-ARMv7-only.patch
+}
+
+build() {
+  export PYTHON=python2
+  cd "$srcdir/volk-$pkgver"
+
+  mkdir -p build
+  cd build
+  cmake \
+    -DPYTHON_EXECUTABLE=$(which python2) \
+    -DCMAKE_INSTALL_PREFIX=/usr -Wno-dev ../
+  make
+}
+
+check() {
+  cd "$srcdir/volk-$pkgver/build"
+  export PYTHON=python2
+  if [[ "$CARCH" == "x86_64" ]]; then
+    make test
+  fi
+}
+
+package() {
+  cd "$srcdir/volk-$pkgver/build"
+  make DESTDIR="$pkgdir" install
+}