extra/libunwind to 1.6.2-1.1

closes #1922

extra/libunwind/PKGBUILD

@@ -5,28 +5,33 @@
 # Contributor: keystone <phillip.marvin@gmail.com>
 
 # ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
-#  - build v5 with system libatomic_ops
+#  - upstream patch to determine page size dynamically
 
 pkgname=libunwind
 pkgver=1.6.2
-pkgrel=1
+pkgrel=1.1
 pkgdesc='Portable and efficient C programming interface (API) to determine the call-chain of a program'
 arch=('x86_64')
 url='https://www.nongnu.org/libunwind/'
 license=('GPL')
 depends=('xz' 'zlib')
-depends_arm=('libatomic_ops')
 makedepends=('texlive-core')
-source=("https://download.savannah.gnu.org/releases/$pkgname/$pkgname-$pkgver.tar.gz"{,.sig})
+source=("https://download.savannah.gnu.org/releases/$pkgname/$pkgname-$pkgver.tar.gz"{,.sig}
+        'https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf.patch')
 sha512sums=('1d17dfb14f99a894a6cda256caf9ec481c14068aaf8f3a85fa3befa7c7cca7fca0f544a91a3a7c2f2fc55bab19b06a67ca79f55ac9081151d94478c7f611f8f7'
-            'SKIP')
+            'SKIP'
+            'c75a67496b6e68c8f85193a2d6c161f5db657119561ce1a6c478e4dd957cff7d22e2f57092f9ce2d97d4d0be4067775f45bdaa449a587e785758da1e305763c6')
 validpgpkeys=('5C96BDEAF5F47FB02BD4F6B965D98560914F3F48'  # Arun Sharma
               '1675C8DA2EF907FB116EB709EC52B396E6874AF2'  # Dave Watson
               '75D2CFC56CC2E935A4143297015A268A17D55FA4') # Dave Watson
 
+prepare() {
+  cd $pkgname-$pkgver
+  patch -p1 -i ../e85b65cec757ef589f28957d0c6c21c498a03bdf.patch
+}
+
 build() {
   cd $pkgname-$pkgver
-  [[ $CARCH == "arm" ]] && LDFLAGS+=" -latomic_ops" && CFLAGS+=" -DAO_USE_PTHREAD_DEFS=1"
   ./configure --prefix=/usr
   sed -i -e 's/ -shared / -Wl,-O1,--as-needed\0/g' libtool
   make