# allow pass CFLAGS, replace -O, -pg,-DPROFILING with $(CFLAGS)
Makefiles=$(find . -type f -name Makefile\*)
%{__sed} -i -e 's@^CFLAGS[ \t]*=@override CFLAGS += @' $Makefiles
%{__sed} -i -e 's@\(^override CFLAGS += .*\)-O \(.*\)@\1\2@' $Makefiles
%{__sed} -i -e 's@^CCFLAGS[ \t]*=\(.*\)@override CCFLAGS += \1 $(CFLAGS)@' $Makefiles
%{__sed} -i -e 's@-pg -O -DPROFILING@ $(CFLAGS) @' asmrun/Makefile
%{__sed} -i -e 's@-O@$(CFLAGS)@' otherlibs/systhreads/Makefile

--- ocaml-4.02.2/asmrun/Makefile.orig	2015-06-28 13:45:16.203456490 +0200
+++ ocaml-4.02.2/asmrun/Makefile	2015-06-28 15:07:59.556581531 +0200
@@ -16,10 +16,10 @@
 CC=$(NATIVECC)
 FLAGS=-I../byterun -DCAML_NAME_SPACE -DNATIVE_CODE \
       -DTARGET_$(ARCH) -DSYS_$(SYSTEM) $(IFLEXDIR)
-CFLAGS=$(FLAGS) $(NATIVECCCOMPOPTS)
+override CFLAGS += $(FLAGS) $(NATIVECCCOMPOPTS)
 DFLAGS=$(FLAGS) -g -DDEBUG $(NATIVECCCOMPOPTS)
-PFLAGS=$(FLAGS) -pg -O -DPROFILING $(NATIVECCPROFOPTS)
-PICFLAGS=$(FLAGS) -O $(SHAREDCCCOMPOPTS) $(NATIVECCCOMPOPTS)
+PFLAGS=$(FLAGS) $(CFLAGS) $(NATIVECCPROFOPTS)
+PICFLAGS=$(FLAGS) $(CFLAGS) $(SHAREDCCCOMPOPTS) $(NATIVECCCOMPOPTS)
 
 COBJS=startup.o main.o fail.o roots.o globroots.o signals.o signals_asm.o \
   misc.o freelist.o major_gc.o minor_gc.o memory.o alloc.o compare.o ints.o \
--- ocaml-4.02.1/asmrun/Makefile.nt.orig	2014-11-06 21:32:19.358167666 +0100
+++ ocaml-4.02.1/asmrun/Makefile.nt	2014-11-07 16:19:43.681995569 +0100
@@ -14,7 +14,7 @@
 include ../config/Makefile
 
 CC=$(NATIVECC)
-CFLAGS=-I../byterun -DNATIVE_CODE -DTARGET_$(ARCH) -DSYS_$(SYSTEM) \
+override CFLAGS += -I../byterun -DNATIVE_CODE -DTARGET_$(ARCH) -DSYS_$(SYSTEM) \
        $(NATIVECCCOMPOPTS)
 
 COBJS=startup.$(O) main.$(O) fail.$(O) roots.$(O) signals.$(O) signals_asm.$(O)\
--- ocaml-4.02.2/byterun/Makefile.orig	2015-06-28 13:45:16.206789823 +0200
+++ ocaml-4.02.2/byterun/Makefile	2015-06-28 15:08:35.076580040 +0200
@@ -13,7 +13,7 @@
 
 include Makefile.common
 
-CFLAGS=-DCAML_NAME_SPACE $(BYTECCCOMPOPTS) $(IFLEXDIR)
+override CFLAGS += -DCAML_NAME_SPACE $(BYTECCCOMPOPTS) $(IFLEXDIR)
 DFLAGS=-DCAML_NAME_SPACE -g -DDEBUG $(BYTECCCOMPOPTS) $(IFLEXDIR)
 
 OBJS=$(COMMONOBJS) $(UNIX_OR_WIN32).o main.o
diff -ur ocaml-3.11.0/byterun/Makefile.nt ocaml-3.11.0.CFLAGS/byterun/Makefile.nt
--- ocaml-3.11.0/byterun/Makefile.nt	2008-11-26 14:26:53.000000000 +0100
+++ ocaml-3.11.0.CFLAGS/byterun/Makefile.nt	2009-02-16 12:18:01.215883365 +0100
@@ -15,7 +15,7 @@
 
 include Makefile.common
 
-CFLAGS=-DOCAML_STDLIB_DIR='"$(LIBDIR)"' $(IFLEXDIR)
+override CFLAGS += -DOCAML_STDLIB_DIR='"$(LIBDIR)"' $(IFLEXDIR)
 
 DBGO=d.$(O)
 OBJS=$(COMMONOBJS:.o=.$(O)) win32.$(O) main.$(O)
--- ocaml-4.02.2/otherlibs/Makefile.orig	2015-06-28 13:45:16.210123156 +0200
+++ ocaml-4.02.2/otherlibs/Makefile	2015-06-28 15:09:02.573245553 +0200
@@ -16,7 +16,7 @@
 CAMLC=$(CAMLRUN) $(ROOTDIR)/ocamlc -nostdlib -I $(ROOTDIR)/stdlib
 CAMLOPT=$(CAMLRUN) $(ROOTDIR)/ocamlopt -nostdlib \
         -I $(ROOTDIR)/stdlib
-CFLAGS=-I$(ROOTDIR)/byterun $(SHAREDCCCOMPOPTS) $(EXTRACFLAGS)
+override CFLAGS += -I$(ROOTDIR)/byterun $(SHAREDCCCOMPOPTS) $(EXTRACFLAGS)
 
 include ../Makefile.shared
 # Note .. is the current directory (this makefile is included from
--- ocaml-4.02.2/otherlibs/systhreads/Makefile.orig	2015-06-28 13:45:16.213456489 +0200
+++ ocaml-4.02.2/otherlibs/systhreads/Makefile	2015-06-28 15:09:59.356576505 +0200
@@ -36,7 +36,7 @@
 	$(MKLIB) -o threads $(BYTECODE_C_OBJS) $(PTHREAD_LINK)
 
 st_stubs_b.o: st_stubs.c st_posix.h
-	$(BYTECC) -I../../byterun $(BYTECCCOMPOPTS) $(SHAREDCCCOMPOPTS) \
+	$(BYTECC) $(CFLAGS) -I../../byterun $(BYTECCCOMPOPTS) $(SHAREDCCCOMPOPTS) \
 	   -c st_stubs.c
 	mv st_stubs.o st_stubs_b.o
 
@@ -46,7 +46,7 @@
 	$(AR) rc libthreadsnat.a $(NATIVECODE_C_OBJS)
 
 st_stubs_n.o: st_stubs.c st_posix.h
-	$(NATIVECC) -I../../asmrun -I../../byterun $(NATIVECCCOMPOPTS) \
+	$(NATIVECC) $(CFLAGS) -I../../asmrun -I../../byterun $(NATIVECCCOMPOPTS) \
 	            $(SHAREDCCCOMPOPTS) -DNATIVE_CODE -DTARGET_$(ARCH) \
 	            -DSYS_$(SYSTEM) -c st_stubs.c
 	mv st_stubs.o st_stubs_n.o
--- ocaml-4.02.2/otherlibs/systhreads/Makefile.nt.orig	2015-06-28 13:45:16.216789823 +0200
+++ ocaml-4.02.2/otherlibs/systhreads/Makefile.nt	2015-06-28 15:10:34.866575013 +0200
@@ -20,7 +20,7 @@
 CAMLOPT=$(CAMLRUN) ../../ocamlopt -I ../../stdlib -I ../win32unix
 COMPFLAGS=-w +33 -warn-error A -g
 MKLIB=$(CAMLRUN) ../../tools/ocamlmklib
-CFLAGS=-I../../byterun $(EXTRACFLAGS)
+override CFLAGS += -I../../byterun $(EXTRACFLAGS)
 
 CAMLOBJS=thread.cmo mutex.cmo condition.cmo event.cmo threadUnix.cmo
 CMIFILES=$(CAMLOBJS:.cmo=.cmi)
--- ocaml-4.02.2/otherlibs/threads/Makefile.orig	2015-06-28 13:45:16.220123156 +0200
+++ ocaml-4.02.2/otherlibs/threads/Makefile	2015-06-28 15:11:03.843240464 +0200
@@ -18,7 +18,7 @@
 CAMLYACC ?= ../../boot/ocamlyacc
 
 CC=$(BYTECC)
-CFLAGS=-I../../byterun $(BYTECCCOMPOPTS) $(SHAREDCCCOMPOPTS) -g
+override CFLAGS += -I../../byterun $(BYTECCCOMPOPTS) $(SHAREDCCCOMPOPTS) -g
 ROOTDIR=../..
 CAMLC=$(CAMLRUN) $(ROOTDIR)/ocamlc -nostdlib \
       -I $(ROOTDIR)/stdlib -I $(ROOTDIR)/otherlibs/unix
--- ocaml-4.02.2/yacc/Makefile.orig	2015-06-28 13:45:16.220123156 +0200
+++ ocaml-4.02.2/yacc/Makefile	2015-06-28 15:11:25.473239557 +0200
@@ -15,7 +15,7 @@
 include ../config/Makefile
 
 CC=$(BYTECC)
-CFLAGS=-DNDEBUG $(BYTECCCOMPOPTS)
+override CFLAGS += -DNDEBUG $(BYTECCCOMPOPTS)
 
 OBJS= closure.o error.o lalr.o lr0.o main.o mkpar.o output.o reader.o \
   skeleton.o symtab.o verbose.o warshall.o