rename linearize.{h/c} to linearizer.{h/c} which follows the convention used in parser.c and reasoner.c

src/runtime/c/utils/pgf-chunk.c

@@ -11,7 +11,7 @@
 #include <pgf/parser.h>
 #include <pgf/lexer.h>
 #include <pgf/literals.h>
-#include <pgf/linearize.h>
+#include <pgf/linearizer.h>
 #include <pgf/expr.h>
 #include <pgf/edsl.h>
 #include <stdio.h>

src/runtime/c/utils/pgf-translate.c

@@ -7,7 +7,7 @@
 #include <pgf/pgf.h>
 #include <pgf/parser.h>
 #include <pgf/literals.h>
-#include <pgf/linearize.h>
+#include <pgf/linearizer.h>
 #include <pgf/edsl.h>
 #include <stdio.h>
 #include <stdlib.h>