libfreexl: reconfigure to enable clangarm64

mingw-w64-libfreexl/PKGBUILD

@@ -7,7 +7,7 @@ _realname=libfreexl
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=1.0.6
-pkgrel=2
+pkgrel=3
 pkgdesc="Library to extract valid data from within an Excel (.xls) spreadsheet (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32'  'clangarm64')
@@ -24,6 +24,7 @@ sha256sums=('3de8b57a3d130cb2881ea52d3aa9ce1feedb1b57b7daa4eb37f751404f90fc22'
 prepare() {
   cd "${srcdir}/freexl-${pkgver}"
   patch -p1 -i ${srcdir}/01-fix-pkgconfig.patch
+  autoreconf -fiv
 }
 
 build() {