exprtk: New package (#25544)

* exprtk: New package

* Update mingw-w64-exprtk/PKGBUILD

* Update mingw-w64-exprtk/PKGBUILD

* Add documentation to install

---------

Co-authored-by: مهدي شينون (Mehdi Chinoune) <mehdi.chinoune@hotmail.com>

mingw-w64-exprtk/PKGBUILD

@@ -0,0 +1,24 @@
+# Maintainer: Alexey Pavlov <alexpux@gmail.com>
+
+_realname=exprtk
+pkgbase=mingw-w64-${_realname}
+pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}")
+pkgver=0.0.3
+pkgrel=1
+pkgdesc="C++ Mathematical Expression Toolkit Library (mingw-w64)"
+arch=('any')
+mingw_arch=('mingw64' 'ucrt64' 'clang64' 'clangarm64')
+url='https://github.com/ArashPartow/exprtk'
+license=('spdx:MIT')
+source=("${_realname}-${pkgver}.tar.gz::https://github.com/ArashPartow/exprtk/archive/refs/tags/${pkgver}.tar.gz")
+sha256sums=('f9dec6975e86c702033d6a65ba9a0368eba31a61b89d74f2b5d24457c02c8439')
+
+package() {
+  install -Dm644 "${srcdir}"/${_realname}-${pkgver}/exprtk.hpp \
+    "${pkgdir}"${MINGW_PREFIX}/include/exprtk.hpp
+  install -Dm644 "${srcdir}"/${_realname}-${pkgver}/readme.txt \
+    "${pkgdir}"${MINGW_PREFIX}/share/docs/${_realname}/readme.txt
+
+  install -Dm644 "${srcdir}"/${_realname}-${pkgver}/license.txt \
+    "${pkgdir}"${MINGW_PREFIX}/share/licenses/${_realname}/LICENSE
+}