#-*- Makefile -*-
.SUFFIXES: .c .f .o .a .def .exp .dll .exe .d

# Alternatives CYGWIN (--no-cygwin), MINGW32 (mingw32 gcc), CROSS (Linux)
BUILD=MINGW32

# Where does 'HTML Help Workshop' live? (unused if compiled HTML help is
# not requested. No spaces allowed.)
HHWDIR=C:/PROGRA~1/HTMLHE~1

ifeq ($(strip $(BUILD)),CYGWIN)
BINPREF=
MINGW32CFLAG= -mno-cygwin -DWIN32
MINGW32LDFLAG= -mno-cygwin
#-L(directory where gcc-2.95-mingw-extra.tar.gz was uncompressed)
FLIBS=-L/cygnus/cygwin-b20/mingw32/lib -lg2c
AWK=gawk
endif

ifeq ($(strip $(BUILD)),MINGW32)
BINPREF=
MINGW32CFLAG= 
MINGW32LDFLAG= 
FLIBS=-lg2c
AWK=gawk
endif 

ifeq ($(strip $(BUILD)),CROSS)
# Next two might be i586- if pre-built cross-compiler is used.
BINPREF=i386-mingw32-
HEADER=/packages/R-X/i386-mingw32/include
MINGW32CFLAG=-isystem $(HEADER)
MINGW32LDFLAG= 
FLIBS=-lg2c
AWK=awk
endif 

PERL=perl
RM=rm -f
SED=sed
ECHO=echo
CP=cp
MKDIR=mkdir
CAT=cat
CC=$(BINPREF)gcc $(MINGW32CFLAG) 
F77=$(BINPREF)g77
AS=$(BINPREF)as
DLL=$(BINPREF)gcc $(MINGW32LDFLAG) -mdll
DLLTOOL=$(BINPREF)dlltool -k --as $(AS)
LINKER=$(BINPREF)gcc $(MINGW32LDFLAG) 
AR=$(BINPREF)ar
RANLIB=$(BINPREF)ranlib
NM=$(BINPREF)nm
CPP=$(CC) -E
RESCOMP=$(BINPREF)windres 

.c.o:
	$(CC)  $(CFLAGS) $($*-CFLAGS) -c $< -o $@

.f.o:
	$(F77) $(FFLAGS) $($*-FFLAGS) -c $< -o $@

#%.exe %.exp:  
#	@$(ECHO) -------- Building $@ from $^ --------
#	$(ECHO) EXPORTS > $*.exp
#	$(NM) $^ | $(SED) -n "/^........ [BCDRT] _/s/^........ [BCDRT] _/ /p" >> $*.exp
#	$(DLLTOOL) --dllname $@  --output-exp $*.e --def $*.exp
#	$(LINKER)  $(LINKFLAGS) $($*-LINKFLAGS) -o $@ -Wl,--base-file,$*.b $*.e $^ $($*-LIBS) $(LIBS)
#	$(DLLTOOL) --dllname $@  --base-file $*.b  --output-exp $*.e  --def $*.exp
#	$(LINKER)  $(LINKFLAGS) $($*-LINKFLAGS) -o $@ $*.e $^ $($*-LIBS) $(LIBS)
#	rm $*.e $*.b 

%.exe:  
	$(LINKER)  $(LINKFLAGS) $($*-LINKFLAGS) -o $@ $^ $($*-LIBS) $(LIBS)


%.dll %.def:   
	@$(ECHO) ------- Building $@ from $^ --------
	$(ECHO) LIBRARY $* > $*.def
	$(ECHO) EXPORTS >> $*.def
	$(NM) $^ > Defs
	$(SED) -n "/^........ [BCDRT] _/s/^........ [BCDRT] _/ /p" Defs >> $*.def
	$(DLL) -Wl,--base-file,$*.b $(DLLFLAGS) $($*-DLLFLAGS) -o $@  $^ $($*-DLLLIBS) $(DLLLIBS)
	$(DLLTOOL) $(DLLTOOLFLAGS) $($*-DLLTOOLFLAGS) --dllname $@  --base-file $*.b --output-exp $*.e --def $*.def
	$(DLL)  -Wl,--base-file,$*.b $(DLLFLAGS) $($*-DLLFLAGS) -o $@ $*.e $^ $($*-DLLLIBS) $(DLLLIBS)
	$(DLLTOOL) $(DLLTOOLFLAGS) $($*-DLLTOOLFLAGS) --dllname $@ --base-file $*.b --output-exp $*.e --def $*.def 
	$(DLL)  $(DLLFLAGS) $($*-DLLFLAGS) -o $@  $*.e $^ $($*-DLLLIBS) $(DLLLIBS)	     
	$(RM)  $*.b $*.e Defs

lib%.a: %.def
	@$(ECHO) -------- Building $@ from $^ --------
	$(DLLTOOL) $(DLLTOOLFLAGS) $($*-DLLTOOLFLAGS) --dllname $*.dll --def $*.def --output-lib lib$*.a

lib%.a: %.exp
	@$(ECHO) -------- Building $@ from $^ --------
	$(DLLTOOL) $(DLLTOOLFLAGS) $($*-DLLTOOLFLAGS) --dllname $*.exe --def $*.exp --output-lib lib$*.a	 

%.a:    
	@$(ECHO) -------- Building $@ from $^ --------
	$(AR) cr $@ $^
	$(RANLIB) $@


%.o:    %.rc
	$(RESCOMP) $(RESFLAGS) $($*-RESFLAGS) -i $^ -o $@