Import all mingw-w64 toolchain packages from official repos

It might make sense to upgrade those to 11.0.1 and extend/duplicate them to
support aarch64-w64-mingw32 in the future (considering
https://www.phoronix.com/news/GCC-aarch64-w64-mingw32).

crt/mingw-w64/PKGBUILD

@@ -0,0 +1,43 @@
+# Maintainer: Felix Yan <felixonmars@archlinux.org>
+
+pkgname=mingw-w64-crt
+pkgver=11.0.0
+pkgrel=1
+pkgdesc='MinGW-w64 CRT for Windows'
+arch=('any')
+url='http://mingw-w64.sourceforge.net'
+license=('custom')
+groups=('mingw-w64-toolchain' 'mingw-w64')
+makedepends=('mingw-w64-gcc' 'mingw-w64-binutils' "mingw-w64-headers=${pkgver}")
+options=('!strip' '!buildflags' 'staticlibs' '!emptydirs')
+validpgpkeys=('CAF5641F74F7DFBA88AE205693BDB53CD4EBC740')
+source=(https://sourceforge.net/projects/mingw-w64/files/mingw-w64/mingw-w64-release/mingw-w64-v${pkgver}.tar.bz2{,.sig})
+sha512sums=('bc1c9fd9d8593ead9375fcbe40950f06cf7616b94dc676db2793ac9b496fe3a6cc94b5793effda3b752942be0d7d01a1c37a8f221aaf178df0d4eeb0aa6d1f8d'
+            'SKIP')
+
+_targets="i686-w64-mingw32 x86_64-w64-mingw32"
+
+build() {
+  cd "$srcdir"
+  for _target in ${_targets}; do
+    echo "Building ${_target} CRT"
+    if [ ${_target} == "i686-w64-mingw32" ]; then
+        _crt_configure_args="--disable-lib64 --enable-lib32"
+    elif [ ${_target} == "x86_64-w64-mingw32" ]; then
+        _crt_configure_args="--disable-lib32 --enable-lib64"
+    fi
+    mkdir -p "$srcdir"/crt-${_target} && cd "$srcdir"/crt-${_target}
+    "$srcdir"/mingw-w64-v${pkgver}/mingw-w64-crt/configure --prefix=/usr/${_target} \
+        --host=${_target} --enable-wildcard \
+        ${_crt_configure_args}
+    make
+  done
+}
+
+package() {
+  for _target in ${_targets}; do
+    echo "Installing ${_target} crt"
+    cd "$srcdir"/crt-${_target}
+    make DESTDIR="$pkgdir" install
+  done
+}

headers/mingw-w64/PKGBUILD

@@ -0,0 +1,41 @@
+# Maintainer: Felix Yan <felixonmars@archlinux.org>
+
+pkgname=mingw-w64-headers
+pkgver=11.0.0
+pkgrel=1
+pkgdesc="MinGW-w64 headers for Windows"
+arch=('any')
+url="http://mingw-w64.sourceforge.net"
+license=('custom')
+groups=('mingw-w64-toolchain' 'mingw-w64')
+options=('!strip' '!libtool' '!emptydirs')
+validpgpkeys=('CAF5641F74F7DFBA88AE205693BDB53CD4EBC740')
+source=(https://sourceforge.net/projects/mingw-w64/files/mingw-w64/mingw-w64-release/mingw-w64-v${pkgver}.tar.bz2{,.sig})
+sha512sums=('bc1c9fd9d8593ead9375fcbe40950f06cf7616b94dc676db2793ac9b496fe3a6cc94b5793effda3b752942be0d7d01a1c37a8f221aaf178df0d4eeb0aa6d1f8d'
+            'SKIP')
+
+_targets="i686-w64-mingw32 x86_64-w64-mingw32"
+
+build() {
+  for _target in ${_targets}; do
+    echo "Configuring ${_target} headers"
+    mkdir -p "$srcdir"/headers-${_target} && cd "$srcdir"/headers-${_target}
+    "$srcdir"/mingw-w64-v${pkgver}/mingw-w64-headers/configure --prefix=/usr/${_target} --enable-sdk=all --host=${_target}
+  done
+}
+
+package() {
+  for _target in ${_targets}; do
+    echo "Installing ${_target} headers"
+    cd "$srcdir"/headers-${_target}
+    make DESTDIR="$pkgdir" install
+    rm "$pkgdir"/usr/${_target}/include/pthread_signal.h
+    rm "$pkgdir"/usr/${_target}/include/pthread_time.h
+    rm "$pkgdir"/usr/${_target}/include/pthread_unistd.h
+  done
+
+  echo "Installing MinGW-w64 licenses"
+  install -Dm644 "$srcdir"/mingw-w64-v${pkgver}/COPYING.MinGW-w64/COPYING.MinGW-w64.txt "$pkgdir"/usr/share/licenses/${pkgname}/COPYING.MinGW-w64.txt
+  install -Dm644 "$srcdir"/mingw-w64-v${pkgver}/COPYING.MinGW-w64-runtime/COPYING.MinGW-w64-runtime.txt "$pkgdir"/usr/share/licenses/${pkgname}/COPYING.MinGW-w64-runtime.txt
+  install -Dm644 "$srcdir"/mingw-w64-v${pkgver}/mingw-w64-headers/ddk/readme.txt "$pkgdir"/usr/share/licenses/${pkgname}/ddk-readme.txt
+}

winpthreads/mingw-w64/PKGBUILD

@@ -0,0 +1,39 @@
+# Maintainer: Felix Yan <felixonmars@archlinux.org>
+
+pkgname=mingw-w64-winpthreads
+pkgver=11.0.0
+pkgrel=1
+pkgdesc='MinGW-w64 winpthreads library'
+arch=('any')
+url='http://mingw-w64.sourceforge.net'
+license=('custom')
+groups=('mingw-w64-toolchain' 'mingw-w64')
+makedepends=('mingw-w64-gcc' 'mingw-w64-binutils' "mingw-w64-crt=${pkgver}")
+provides=('mingw-w64-headers-bootstrap')
+conflicts=('mingw-w64-headers-bootstrap')
+replaces=('mingw-w64-headers-bootstrap')
+options=('!strip' '!buildflags' 'staticlibs' '!emptydirs')
+validpgpkeys=('CAF5641F74F7DFBA88AE205693BDB53CD4EBC740')
+source=(https://sourceforge.net/projects/mingw-w64/files/mingw-w64/mingw-w64-release/mingw-w64-v${pkgver}.tar.bz2{,.sig})
+sha512sums=('bc1c9fd9d8593ead9375fcbe40950f06cf7616b94dc676db2793ac9b496fe3a6cc94b5793effda3b752942be0d7d01a1c37a8f221aaf178df0d4eeb0aa6d1f8d'
+            'SKIP')
+
+_targets="i686-w64-mingw32 x86_64-w64-mingw32"
+
+build() {
+  for _target in ${_targets}; do
+    msg "Building ${_target} winpthreads..."
+    mkdir -p "$srcdir"/winpthreads-build-${_target} && cd "$srcdir"/winpthreads-build-${_target}
+    "$srcdir"/mingw-w64-v${pkgver}/mingw-w64-libraries/winpthreads/configure --prefix=/usr/${_target} \
+        --host=${_target} --enable-static --enable-shared
+    make
+  done
+}
+
+package() {
+  for _target in ${_targets}; do
+    cd "$srcdir"/winpthreads-build-${_target}
+    make DESTDIR="$pkgdir" install
+    ${_target}-strip --strip-unneeded "$pkgdir"/usr/${_target}/bin/*.dll
+  done
+}