wrangler: respect $CC during compilation

Closes Homebrew#11524.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Library/Formula/wrangler.rb

@@ -7,10 +7,74 @@ class Wrangler < Formula
 
   depends_on 'erlang'
 
+  def patches
+    # Respect $CC during compilation. Merged upstream:
+    # https://github.com/RefactoringTools/wrangler/pull/41
+    DATA
+  end
+
   def install
     ENV.deparallelize
     system "./configure", "--prefix=#{prefix}"
     system "make"
     system "make install"
   end
 end
+
+__END__
+diff --git i/c_src/gsuffixtree/Makefile.in w/c_src/gsuffixtree/Makefile.in
+index 3f4e6fa..751ed55 100755
+--- i/c_src/gsuffixtree/Makefile.in
++++ w/c_src/gsuffixtree/Makefile.in
+@@ -1,5 +1,6 @@
+
+
++CC          = @CC@
+ ERL_CFLAGS  = @ERL_CFLAGS@
+ ERL_LIB     = @ERL_LIB@
+ CFLAGS      = @CFLAGS@
+@@ -10,13 +11,13 @@ ERL_LDFLAGS= ${LDFLAGS} ${ERL_LIB}
+
+
+ gsuffixtree:	main.o gsuffix_tree.o
+-	gcc  ${ERL_LDFLAGS} main.o gsuffix_tree.o -lerl_interface -lei -lpthread -o gsuffixtree 
++	$(CC) ${ERL_LDFLAGS} main.o gsuffix_tree.o -lerl_interface -lei -lpthread -o gsuffixtree
+
+ gsuffix_tree.o:	gsuffix_tree.c gsuffix_tree.h
+-	gcc ${CFLAGS} ${ERL_CFLAGS} -o gsuffix_tree.o -c gsuffix_tree.c
++	$(CC) ${CFLAGS} ${ERL_CFLAGS} -o gsuffix_tree.o -c gsuffix_tree.c
+
+ main.o:	gsuffix_tree.h 
+-	gcc ${CFLAGS} ${ERL_CFLAGS} -o main.o -c main.c 
++	$(CC) ${CFLAGS} ${ERL_CFLAGS} -o main.o -c main.c
+
+ clean: 
+ 	-rm -f *.o 
+diff --git i/c_src/suffixtree/Makefile.in w/c_src/suffixtree/Makefile.in
+index 8ed7c1d..3f40de4 100755
+--- i/c_src/suffixtree/Makefile.in
++++ w/c_src/suffixtree/Makefile.in
+@@ -1,5 +1,6 @@
+
+
++CC          = @CC@
+ ERL_CFLAGS  = @ERL_CFLAGS@
+ ERL_LIB     = @ERL_LIB@
+ CFLAGS      = @CFLAGS@
+@@ -10,13 +11,13 @@ ERL_LDFLAGS= ${LDFLAGS} ${ERL_LIB}
+
+
+ suffixtree:	main.o suffix_tree.o
+-	gcc  ${ERL_LDFLAGS} main.o suffix_tree.o -lerl_interface -lei -lpthread -o suffixtree 
++	$(CC) ${ERL_LDFLAGS} main.o suffix_tree.o -lerl_interface -lei -lpthread -o suffixtree
+
+ suffix_tree.o:	suffix_tree.c suffix_tree.h
+-	gcc ${CFLAGS} ${ERL_CFLAGS} -o suffix_tree.o -c suffix_tree.c
++	$(CC) ${CFLAGS} ${ERL_CFLAGS} -o suffix_tree.o -c suffix_tree.c
+
+ main.o:	suffix_tree.h 
+-	gcc ${CFLAGS} ${ERL_CFLAGS} -o main.o -c main.c 
++	$(CC) ${CFLAGS} ${ERL_CFLAGS} -o main.o -c main.c
+
+ clean: 
+ 	-rm -f *.o