extra/boost to 1.62.0-3

extra/boost/PKGBUILD

@@ -16,7 +16,7 @@ pkgbase=boost
 pkgname=('boost-libs' 'boost')
 pkgver=1.62.0
 _boostver=${pkgver//./_}
-pkgrel=2
+pkgrel=3
 url='http://www.boost.org/'
 arch=('i686' 'x86_64')
 license=('custom')
@@ -122,6 +122,9 @@ package_boost-libs() {
    depends=('bzip2' 'zlib' 'icu')
    optdepends=('openmpi: for mpi support')
 
+   # powerdns-recursor keeps being rebuild against outdated boost-libs
+   provides=('libboost_context.so')
+
    install -dm755 "${pkgdir}"/usr
    cp -a "${_stagedir}"/lib "${pkgdir}"/usr
    cp -a "${_stagedir}"/python3/lib/libboost_python3* "${pkgdir}"/usr/lib