boost: Back libraries with names without architecture

mingw-w64-boost/PKGBUILD

@@ -5,7 +5,7 @@ pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=1.69.0
 _boostver=${pkgver//./_}
-pkgrel=1
+pkgrel=2
 pkgdesc="Free peer-reviewed portable C++ source libraries (mingw-w64)"
 arch=('any')
 url="https://www.boost.org/"
@@ -29,6 +29,7 @@ source=(https://downloads.sourceforge.net/sourceforge/boost/boost_${_boostver}.t
         boost-1.57.0-python-abi_letters.patch
         boost-1.57.0-python-libpython_dep.patch
         boost-1.60.0-mingw-context.patch
+        boost-1.69-old-style-names-layout.patch
         using-mingw-w64-python.patch
         msys2-mingw-folders-bootstrap.patch)
 sha256sums=('8f32d4617390d1c2d16f26a27ab60d97807b35440d45891fa340fc2648b04406'
@@ -42,6 +43,7 @@ sha256sums=('8f32d4617390d1c2d16f26a27ab60d97807b35440d45891fa340fc2648b04406'
             'cf46e9b791b45937d5af26b0f35dcdfa416cd9b62ef6c29e3064464835634628'
             '01758929643f92530512230d37df9793e6481cd6ce6310e3a79cee5ba287858c'
             '9ac0fc0306114d709958ae6e17fdd38616fa7c352d10346f099b51ef49d0ec4e'
+            'c2508e60bed41471b396875e0289b4b1d4e021f3d01f4294615c72fcd8567439'
             '0dd6346d369850aad13bf8d9bc2f0abc16d4b0586e34d61fab11f65d3d7fa9d4'
             '81f74c2eafbe004bcbb863cc3cd74571adcffed1169dde86645db4441be236e1')
 
@@ -86,6 +88,10 @@ prepare() {
   # https://svn.boost.org/trac/boost/ticket/7262
   msg2 "boost-1.60.0-mingw-context.patch"
   patch -p1 -i ${srcdir}/boost-1.60.0-mingw-context.patch
+  
+  # Back old names for libraries (without architecture)
+  msg2 "boost-1.69-old-style-names-layout.patch"
+  patch -p1 -i ${srcdir}/boost-1.69-old-style-names-layout.patch
 
   # Use our own build Python
   msg2 "using-mingw-w64-python.patch"

mingw-w64-boost/boost-1.69-old-style-names-layout.patch

@@ -0,0 +1,11 @@
+--- boost_1_69_0/boostcpp.jam.orig	2018-12-14 08:31:53.950328700 +0300
++++ boost_1_69_0/boostcpp.jam	2018-12-14 08:32:02.280743300 +0300
+@@ -154,7 +154,7 @@
+             <base> <threading> <runtime> ;
+     case 1.69 :
+         .format-name-args =
+-            <base> <threading> <runtime> <arch-and-model> ;
++            <base> <threading> <runtime> ;
+     }
+ }
+ else if $(layout) = system