diff --git a/mingw-w64-mtex2MML/PKGBUILD b/mingw-w64-mtex2MML/PKGBUILD
index 47da595c1e..ba016dcf48 100644
--- a/mingw-w64-mtex2MML/PKGBUILD
+++ b/mingw-w64-mtex2MML/PKGBUILD
@@ -7,18 +7,15 @@ pkgver=1.3.1
 pkgrel=3
 pkgdesc="A Bison grammar to convert TeX math into MathML (mingw-w64)"
 arch=('any')
-mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64')
+mingw_arch=('mingw64' 'ucrt64' 'clang64' 'clangarm64')
 url="https://github.com/gjtorikian/mtex2MML/"
-license=('LGPL')
-license=('GPL' 'MPL' 'LGPL')
-makedepends=("${MINGW_PACKAGE_PREFIX}-python3"
-             'bison'
-             'flex'
+license=('spdx:MPL-2.0 OR LGPL-2.1-or-later OR GPL-2.0-or-later')
+makedepends=("${MINGW_PACKAGE_PREFIX}-cc"
              "${MINGW_PACKAGE_PREFIX}-cmake"
+             "${MINGW_PACKAGE_PREFIX}-python"
              "${MINGW_PACKAGE_PREFIX}-pkgconf"
-             "${MINGW_PACKAGE_PREFIX}-cc"
             )
-source=(${_realname}-${pkgver}.tar.gz::"https://github.com/gjtorikian/${_realname}/archive/v${pkgver}.tar.gz"
+source=("https://github.com/gjtorikian/${_realname}/archive/v${pkgver}/${_realname}-${pkgver}.tar.gz"
         001-install-rules.patch)
 sha256sums=('977be19419572da01c4c86789c28a6a0d8cd74cdab6e30f77d6ab7dbd38e7195'
             '32a4fbcf633d165c4fd36b2f4af8b902d0509dcca0fd3585e244e9cad65e7eee')
@@ -29,23 +26,28 @@ prepare() {
 }
 
 build() {
-  rm -rf "${srcdir}/build-${MSYSTEM}"
-  mkdir "${srcdir}/build-${MSYSTEM}"
-  cd "${srcdir}/build-${MSYSTEM}"
+  mkdir -p "${srcdir}/build-${MSYSTEM}" && cd "${srcdir}/build-${MSYSTEM}"
 
-  CFLAGS+=" -Wno-strict-prototypes"
+  declare -a _extra_config
+  if check_option "debug" "n"; then
+    _extra_config+=("-DCMAKE_BUILD_TYPE=Release")
+  else
+    _extra_config+=("-DCMAKE_BUILD_TYPE=Debug")
+  fi
 
+  CFLAGS+=" -Wno-strict-prototypes" \
   MSYS2_ARG_CONV_EXCL="-DCMAKE_INSTALL_PREFIX=" \
   ${MINGW_PREFIX}/bin/cmake \
-    -G"MSYS Makefiles" \
-    -DCMAKE_BUILD_TYPE=Release \
+    -G"Ninja" \
     -DCMAKE_INSTALL_PREFIX="${MINGW_PREFIX}" \
-    -DBUILD_STATIC_LIBS=YES \
-    -DBUILD_SHARED_LIBS=YES \
-    -DBUILD_TESTING=YES \
+    -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
+    -DBUILD_STATIC_LIBS=ON \
+    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_TESTING=OFF \
+    "${_extra_config[@]}" \
     ../${_realname}-${pkgver}
 
-  make ${MAKEFLAGS}
+  cmake --build .
 }
 
 # check() {
@@ -54,5 +56,5 @@ build() {
 
 package() {
   cd "${srcdir}/build-${MSYSTEM}"
-  make DESTDIR="${pkgdir}" -j1 install
+  DESTDIR="${pkgdir}" cmake --install .
 }