diff --git a/mingw-w64-ada-xdiff/.gitignore b/mingw-w64-ada-xdiff/.gitignore
new file mode 100644
index 0000000000..2cdfdc1e03
--- /dev/null
+++ b/mingw-w64-ada-xdiff/.gitignore
@@ -0,0 +1 @@
+xdiff
diff --git a/mingw-w64-ada-xdiff/PKGBUILD b/mingw-w64-ada-xdiff/PKGBUILD
new file mode 100644
index 0000000000..be7ed74e4e
--- /dev/null
+++ b/mingw-w64-ada-xdiff/PKGBUILD
@@ -0,0 +1,91 @@
+# Maintainer: Philipp Smirnov https://github.com/sad-poet
+
+_realname=xdiff
+pkgbase=mingw-w64-ada-${_realname}
+pkgname=${MINGW_PACKAGE_PREFIX}-ada-${_realname}
+pkgver=26.0.r3.13326c9
+pkgrel=1
+_branch=26.0
+_commit=13326c907e0f81eb1ef2276b5c2e41ac87627cd6
+pkgdesc="Ada binding to the libfswatch library (mingw-w64)"
+arch=('any')
+mingw_arch=('mingw64' 'ucrt64')
+url="https://github.com/AdaCore/xdiff"
+license=('spdx:GPL-3.0-or-later')
+depends=("${MINGW_PACKAGE_PREFIX}-gcc-ada")
+makedepends=("${MINGW_PACKAGE_PREFIX}-gprbuild"
+             "git")
+options=(!emptydirs)
+source=("${_realname}"::"git+https://github.com/AdaCore/xdiff.git#commit=${_commit}")
+sha256sums=('9094621fec863d22732005a5e2b37d961ea611d61fa3da24950e9c30e058fabe')
+
+_library_types="static static-pic relocatable"
+_build_mode="prod"
+
+apply_patch_with_msg() {
+  for _patch in "$@"
+  do
+    msg2 "Applying ${_patch}"
+    patch -Nbp1 -i "${srcdir}/${_patch}"
+  done
+}
+
+pkgver() {
+  cd "${srcdir}/${_realname}"
+  printf "%s.r%s.%s" "$_branch" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
+}
+
+prepare() {
+  cd "${srcdir}/${_realname}"
+}
+
+build() {
+  [[ -d "${srcdir}"/build-${MSYSTEM} ]] && rm -rf "${srcdir}"/build-${MSYSTEM}
+  cp -r "${srcdir}/${_realname}" "${srcdir}"/build-${MSYSTEM}
+  cd "${srcdir}"/build-${MSYSTEM}
+
+  for _library_type in ${_library_types}; do
+    echo "Building ${_library_type}:"
+    gprbuild -p -P xdiff.gpr \
+      -j"$(nproc)" \
+      -XBUILD_MODE="${_build_mode}" \
+      -XLIBRARY_TYPE="${_library_type}"
+    rm -rf obj/
+  done
+
+  for _library_type in ${_library_types}; do
+    echo "Building ${_library_type}:"
+    gprbuild -p -P src/c_xdiff/c_xdiff.gpr \
+      -j"$(nproc)" \
+      -XBUILD_MODE="${_build_mode}" \
+      -XLIBRARY_TYPE="${_library_type}"
+    rm -rf obj/
+  done
+}
+
+package() {
+  cd "${srcdir}"/build-${MSYSTEM}
+
+  for _library_type in ${_library_types}; do
+    echo "Installing ${_library_type}:"
+    gprinstall -f -p -P xdiff.gpr \
+      --prefix="${pkgdir}${MINGW_PREFIX}" \
+      -XBUILD_MODE="${_build_mode}" \
+      -XLIBRARY_TYPE="${_library_type}" \
+      --build-var=LIBRARY_TYPE \
+      --build-name=${_library_type}
+  done
+
+  for _library_type in ${_library_types}; do
+    echo "Installing ${_library_type}:"
+    gprinstall -f -p -P src/c_xdiff/c_xdiff.gpr \
+      --prefix="${pkgdir}${MINGW_PREFIX}" \
+      -XBUILD_MODE="${_build_mode}" \
+      -XLIBRARY_TYPE="${_library_type}" \
+      --build-var=LIBRARY_TYPE \
+      --build-name=${_library_type}
+  done
+
+  install -Dm644 -t "${pkgdir}"${MINGW_PREFIX}/share/licenses/ada-${_realname} \
+    "${srcdir}"/${_realname}/LICENSE
+}