Implement a config.h to move defines off the compile line and reduce builds

site_ansto/make_config.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+#
+# Write a new config.h, but only if changed
+#
+rm -f config_new.h
+SICS_SITE=$(bash extract_version.sh SITE)
+SICS_VERSION=$(bash extract_version.sh VERSION)
+SICS_REVISION=$(bash extract_version.sh REVISION)
+echo "#define SICS_SITE \"$SICS_SITE\"" >> config_new.h
+echo "#define SICS_VERSION \"$SICS_VERSION\"" >> config_new.h
+echo "#define SICS_REVISION \"$SICS_REVISION\"" >> config_new.h
+if [[ -f /usr/include/valgrind/memcheck.h ]]
+then
+  echo "#define SICS_VALGRIND" >> config_new.h
+fi
+delta=$(diff -q config.h config_new.h 2>> /dev/null)
+if [[ $? == 0 ]]
+then
+  echo "config not changed"
+  rm -f config_new.h
+else
+  echo "config updated"
+  mv -f --backup config_new.h config.h
+fi