ngraph-gtk: rebuild (new gsl)

mingw-w64-ngraph-gtk/PKGBUILD

@@ -4,7 +4,7 @@ _realname=ngraph-gtk
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=6.09.05
-pkgrel=1
+pkgrel=2
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
 pkgdesc="create scientific 2-dimensional graphs (mingw-w64)"
@@ -31,9 +31,8 @@ prepare() {
 }
 
 build() {
-  [[ -d build-${MINGW_CHOST} ]] && rm -rf build-${MINGW_CHOST}
-  mkdir -p build-${MINGW_CHOST}
-  cd build-${MINGW_CHOST}
+  [[ -d build-${MSYSTEM} ]] && rm -rf build-${MSYSTEM}
+  mkdir -p build-${MSYSTEM} && cd build-${MSYSTEM}
 
   ../${_realname}-${pkgver}/configure \
     --host=${MINGW_CHOST} \
@@ -41,11 +40,12 @@ build() {
     --build=${MINGW_CHOST} \
     --prefix=${MINGW_PREFIX} \
     --libexecdir=${MINGW_PREFIX}/lib
+
   make
 }
 
 package() {
-  cd "${srcdir}/build-${MINGW_CHOST}"
+  cd "${srcdir}/build-${MSYSTEM}"
   make DESTDIR=${pkgdir} install
 
   install -Dm644 "${srcdir}/${_realname}-${pkgver}/COPYING" "${pkgdir}${MINGW_PREFIX}/share/licenses/${_realname}/COPYING"