R devel - Oct 2009 - Makevars, cc files in multiple directories

Hello,
In the src folder of my R package I have

a.cc
b.cc
f/g/x.cc

my Makevars.in has

all: $(SHLIB)

upon installing only, a.o and b.o is build and the final dll is  
comprised of a.o and b.o

How can I instruct $(SHLIB) to pick up its source files from all  
subdirectories (or maybe a subset, though here it will be all)
in src ?

Much thanks
Saptarshi

On Thu, 29 Oct 2009, Saptarshi Guha wrote:
> In the src folder of my R package I have
>
> a.cc
> b.cc
> f/g/x.cc
>
> my Makevars.in has
>
> all: $(SHLIB)
>
> upon installing only, a.o and b.o is build and the final dll is
> comprised of a.o and b.o
>
> How can I instruct $(SHLIB) to pick up its source files from all
> subdirectories (or maybe a subset, though here it will be all)
> in src ?
>
I have used something like the following to achieve a
similar goal. Create a library (foo.a) based on its
subdirectory makefile (foo_r.mk) and then have the package
link with it (foo.a).

HTH




---------------- Makevars ------------------
###
### MAKEVARS
###

FOODIR    = ./f/g
FOOSRC    = $(FOODIR)
FOOINCDIR = $(FOODIR)/include
FOOLIBDIR = $(FOODIR)
FOOLIB    = -lfoo

PKG_CPPFLAGS = -DNDEBUG -I$(FOOINCDIR)
PKG_LIBS = -L$(FOOLIBDIR) $(FOOLIB) $(LIBM)

##
## Targets
##
all: foo $(SHLIB)

foo:
	(cd $(FOOSRC) && $(MAKE) -f foo_r.mk)

.PHONY: foo all

---------------- foo.mk ---------------------
###
###
### Makefile for FOO library (R environment)
###
###

include $(R_HOME)/etc${R_ARCH}/Makeconf

               AR = ar clq
           RANLIB = ranlib

LIBRARY= foo
MAJOR  = 1
MINOR  = 0
SRCS   = x.c \
         y.c \
         z.c
OBJS   = ${SRCS:.c=.o}

##
## Targets
##
all: lib$(LIBRARY).a

lib$(LIBRARY).a: $(OBJS)
        $(RM) $@
        $(AR) $@ $(OBJS)
        $(RANLIB) $@

clean:
        $(RM) *.o core *.a

.PHONY: clean all

----------------------------------------------------------
SIGSIG -- signature too long (core dumped)

On 29 October 2009 at 11:47, Saptarshi Guha wrote:
| Hello,
| In the src folder of my R package I have
| 
| a.cc
| b.cc
| f/g/x.cc
| 
| my Makevars.in has
| 
| all: $(SHLIB)
| 
| upon installing only, a.o and b.o is build and the final dll is  
| comprised of a.o and b.o
| 
| How can I instruct $(SHLIB) to pick up its source files from all  
| subdirectories (or maybe a subset, though here it will be all)
| in src ?

The Matrix package by D Bates and M Maechler has one of the more complex
setups, you could study their example. I include the (short) src/Makevars
below, it uses the (appropriate) Make directive SUBDIRS. And similar to
Paul's suggestionm it seems like static libraries are used to tie the
subdirectories together.

Hth, Dirk

-----------------------------------------------------------------------------
# -*- Makefile -*-

PKG_CPPFLAGS = -I./UFconfig
## we use the BLAS and the LAPACK library:
PKG_LIBS = $(SUBLIBS) $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)

MkInclude = $(R_HOME)/etc${R_ARCH}/Makeconf

include scripts/SOURCES_C.mkf

OBJECTS = $(SOURCES_C:.c=.o)
SUBDIRS = CHOLMOD COLAMD AMD
SUBLIBS = $(SUBDIRS:=.a)

all: $(SHLIB)
## making src/*.o and in sublibs can be done simultaneously
# for development:
#$(SHLIB): $(OBJECTS)
# for real:
$(SHLIB): $(OBJECTS) sublibs

## We have to clean here, to clean up between architectures:
## INSTALL only cleans src/*.o src/*$(SHLIB_EXT) for each arch
sublibs: subclean
	@for d in $(SUBDIRS); do \
	  (cd $${d} && CFLAGS="$(CFLAGS)"
CXXFLAGS="$(CXXFLAGS)" MkInclude="$(MkInclude)" $(MAKE)
library) || exit 1; \
	done

clean: subclean
	@-rm -rf .libs _libs
	@-rm -f *.o $(SHLIB)

subclean:
	@-rm -f *.a
	@for d in $(SUBDIRS); do \
	  (cd $${d} && MkInclude="$(MkInclude)" $(MAKE) clean) ||
exit 1; \
	done


include scripts/DEPS.mkf
-----------------------------------------------------------------------------



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