Partial revert of be3eead636 . We still need to offer the header file for -complete- wine builds 🐸

PKGBUILD

@@ -545,6 +545,12 @@ hackbase() {
   # install customization file, for reference
   install -Dm644 "${srcdir}"/customization-full.cfg "${pkgdir}/usr/share/doc/${pkgbase}/customization.cfg"
 
+  # workaround for missing header with winesync
+  if [ -e "${srcdir}/winesync.rules" ]; then
+    msg2 "Workaround missing winesync header"
+    install -Dm644 "${srcdir}/${_srcpath}"/include/uapi/linux/winesync.h "${pkgdir}/usr/include/linux/winesync.h"
+  fi
+
   # load winesync module at boot
   if [ -e "${srcdir}/winesync.conf" ]; then
     msg2 "Set the winesync module to be loaded at boot through /etc/modules-load.d"