cuba: Fix packaging

mingw-w64-cuba/PKGBUILD

@@ -8,7 +8,7 @@ _realname=cuba
 pkgbase=mingw-w64-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}")
 pkgver=2.1
-pkgrel=1
+pkgrel=2
 pkgdesc="A library for multidimensional numerical integration (mingw-w64)"
 arch=('any')
 mingw_arch=('ucrt64')
@@ -33,13 +33,13 @@ build() {
   ../"Cuba-${pkgver}"/configure \
     --prefix="${MINGW_PREFIX}"
 
-  make || make -j1
+  make -j1
 }
 
 package() {
   cd "build-${MSYSTEM}"
 
-  make install DESTDIR="${pkgdir}"
+  make -j1 install DESTDIR="${pkgdir}"
 
   install -Dm644 "${srcdir}"/Cuba-${pkgver}/COPYING \
     "${pkgdir}"${MINGW_PREFIX}/share/licenses/${_realname}/LICENSE