use optimization option

PKGBUILD

@@ -3,7 +3,7 @@
 
 pkgname=python36
 pkgver=3.6.13
-pkgrel=1
+pkgrel=2
 _pybasever=3.6
 _pymajver=3
 pkgdesc="Major release 3.6 of the Python high-level programming language"
@@ -14,12 +14,21 @@ depends=('expat' 'bzip2' 'gdbm' 'openssl' 'libffi' 'zlib')
 makedepends=('tk' 'sqlite' 'bluez-libs' 'mpdecimal')
 optdepends=('tk: for tkinter' 'sqlite')
 options=('!makeflags')
-source=(http://www.python.org/ftp/python/${pkgver}/Python-${pkgver}.tar.xz)
-sha256sums=('a47a43a53abb42286a2c11965343ff56711b9e64e8d11bf2c6701a4fb8ce1a0f')
+source=(
+  http://www.python.org/ftp/python/${pkgver}/Python-${pkgver}.tar.xz
+  fix-faulthandler._stack_overflow-on-GCC-10.patch
+)
+sha256sums=(
+  'a47a43a53abb42286a2c11965343ff56711b9e64e8d11bf2c6701a4fb8ce1a0f'
+  '4146f0bff3b79cd05940e2274c6800897a60ae0264d2f05a150137da7c620fda'
+)
 
 prepare() {
   cd "${srcdir}/Python-${pkgver}"
 
+  # fix build with gcc10 #bpo-38965
+  patch --forward --strip=0 --input="${srcdir}/fix-faulthandler._stack_overflow-on-GCC-10.patch"
+
   # FS#23997
   sed -i -e "s|^#.* /usr/local/bin/python|#!/usr/bin/python|" Lib/cgi.py
 
@@ -44,9 +53,10 @@ build() {
               --with-system-libmpdec \
               --with-system-ffi \
               --enable-loadable-sqlite-extensions \
-              --without-ensurepip
+              --without-ensurepip \
+              --enable-optimizations
 
-  make
+  make -j$(nproc)
 }
 
 package() {