Import LinuxCNC source tree

tests/build/header-sanity/test.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+set -xe 
+CPPFLAGS=$(pkg-config --silence-errors --cflags libtirpc)
+for i in "$HEADERS"/*.h; do
+    case $i in
+    */rtapi_app.h) continue ;;
+    esac
+    # CPPFLAGS is supposed to be word split
+    # shellcheck disable=SC2086
+    gcc ${CPPFLAGS} -DULAPI -I"$HEADERS" -E -x c "$i" > /dev/null
+done
+for i in "$HEADERS"/*.h "$HEADERS"/*.hh; do
+    case $i in
+    */\*.hh) continue ;;
+    */rtapi_app.h) continue ;;
+    */interp_internal.hh) continue ;;
+    esac
+    # shellcheck disable=SC2086
+    if g++ ${CPPFLAGS} -std=c++11 -S -o /dev/null -xcxx /dev/null > /dev/null 2>&1; then
+        ELEVEN=-std=c++11
+    else
+        ELEVEN=-std=c++0x
+    fi
+    # shellcheck disable=SC2086
+    g++ ${CPPFLAGS} "$ELEVEN" -DULAPI -I"$HEADERS" -E -x c++ "$i" > /dev/null
+done