Ignore LLVM Version

While we do want to drop this, for now, to keep the diff to upstream
small, we will just disable it with [10,100] range, which should
include all relevent LLVM versions in the foresable future.

Author: angerman

configure.ac

@@ -69,6 +69,13 @@ AC_CHECK_PROGS([PYTHON], [python3 python python2])
 AS_IF([test "x$PYTHON" = x], [AC_MSG_ERROR([Python interpreter not found. Please install Python or set PYTHON environment variable.])])
 AC_SUBST([PYTHON])
 
+# FIXME: For now we keep this check, but just widen it aggressively.
+#        At some point we should just outright remove this.
+LlvmMinVersion=10 # inclusive
+LlvmMaxVersion=100 # not inclusive
+AC_SUBST([LlvmMinVersion])
+AC_SUBST([LlvmMaxVersion])
+
 # --- Files to generate ---
 # config.status will create these files by substituting @VAR@ placeholders.
 AC_CONFIG_FILES([