From: Ralf Treinen <treinen@debian.org>
Date: Tue, 3 Sep 2019 16:23:22 +0200
Subject: Patch upstream Makefile.in in order to suppress the -custom

  option when compiling to byteode.
---
 source/Makefile.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/Makefile.in b/source/Makefile.in
index fbe3843..a7a686e 100644
--- a/source/Makefile.in
+++ b/source/Makefile.in
@@ -39,7 +39,7 @@ hlins: $(MODULES)
 
 # byte code compilation
 hlins.bc: $(MODULES:.cmx=.cmo)
-	$(CAMLC) -custom -o hlins.bc str.cma unix.cma $(MODULES:.cmx=.cmo)\
+	$(CAMLC) -o hlins.bc str.cma unix.cma $(MODULES:.cmx=.cmo)\
 		 -cclib -lstr
 
 .mli.cmi:
