# -*- Makefile -*-

#

# Copyright 2009 Free Software Foundation, Inc.

# 

# This file is part of GNU Radio

# 

# GNU Radio is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3, or (at your option)

# any later version.

# 

# GNU Radio is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# 

# You should have received a copy of the GNU General Public License

# along with GNU Radio; see the file COPYING.  If not, write to

# the Free Software Foundation, Inc., 51 Franklin Street,

# Boston, MA 02110-1301, USA.

# 

# Makefile.swig.gen for usrp2.i

## Default install locations for these files:

##

## Default location for the Python directory is:

##  ${prefix}/lib/python${python_version}/site-packages/[category]/usrp2

## Default location for the Python exec directory is:

##  ${exec_prefix}/lib/python${python_version}/site-packages/[category]/usrp2

##

## The following can be overloaded to change the install location, but

## this has to be done in the including Makefile.am -before-

## Makefile.swig is included.

usrp2_pythondir_category ?= gnuradio/usrp2

usrp2_pylibdir_category ?= $(usrp2_pythondir_category)

usrp2_pythondir = $(pythondir)/$(usrp2_pythondir_category)

usrp2_pylibdir = $(pyexecdir)/$(usrp2_pylibdir_category)

## SWIG headers are always installed into the same directory.

usrp2_swigincludedir = $(swigincludedir)

## This is a template file for a "generated" Makefile addition (in

## this case, "Makefile.swig.gen").  By including the top-level

## Makefile.swig, this file will be used to generate the SWIG

## dependencies.  Assign the variable TOP_SWIG_FILES to be the list of

## SWIG .i files to generated wrappings for; there can be more than 1

## so long as the names are unique (no sorting is done on the

## TOP_SWIG_FILES list). This file explicitly assumes that a SWIG .i

## file will generate .cc, .py, and possibly .h files -- meaning that

## all of these files will have the same base name (that provided for

## the SWIG .i file).

##

## This code is setup to ensure parallel MAKE ("-j" or "-jN") does the

## right thing.  For more info, see <

## http://sources.redhat.com/automake/automake.html#Multiple-Outputs >

## Stamps used to ensure parallel make does the right thing.  These

## are removed by "make clean", but otherwise unused except during the

## parallel built.  These will not be included in a tarball, because

## the SWIG-generated files will be removed from the distribution.

STAMPS += $(DEPDIR)/usrp2-generate-*

## Other cleaned files: dependency files generated by SWIG or this Makefile

MOSTLYCLEANFILES += $(DEPDIR)/*.S*

## Add the .py and .cc files to the list of SWIG built sources.  The

## .h file is sometimes built, but not always ... so that one has to

## be added manually by the including Makefile.am .

swig_built_sources += usrp2.py usrp2-python.cc

## Various SWIG variables.  These can be overloaded in the including

## Makefile.am by setting the variable value there, then including

## Makefile.swig .

usrp2_swiginclude_HEADERS =		\

	usrp2.i			\

	$(usrp2_swiginclude_headers)

usrp2_pylib_LTLIBRARIES =		\

	_usrp2.la

_usrp2_la_SOURCES = 			\

	usrp2-python.cc			\

	$(usrp2_la_swig_sources)

_usrp2_la_LIBADD =			\

	$(STD_SWIG_LA_LIB_ADD)		\

	$(usrp2_la_swig_libadd)

_usrp2_la_LDFLAGS =			\

	$(STD_SWIG_LA_LD_FLAGS)		\

	$(usrp2_la_swig_ldflags)

_usrp2_la_CXXFLAGS =			\

	$(STD_SWIG_CXX_FLAGS)		\

	$(usrp2_la_swig_cxxflags)

usrp2_python_PYTHON =			\

	usrp2.py			\

	$(usrp2_python)

## Entry rule for running SWIG

usrp2.h usrp2.py usrp2-python.cc: usrp2.i

## This rule will get called only when MAKE decides that one of the

## targets needs to be created or re-created, because:

##

## * The .i file is newer than any or all of the generated files;

##

## * Any or all of the .cc, .h, or .py files does not exist and is

##   needed (in the case this file is not needed, the rule for it is

##   ignored); or

##

## * Some SWIG-based dependecy of the .cc file isn't met and hence the

##   .cc file needs be be regenerated.  Explanation: Because MAKE

##   knows how to handle dependencies for .cc files (regardless of

##   their name or extension), then the .cc file is used as a target

##   instead of the .i file -- but with the dependencies of the .i

##   file.  It is this last reason why the line:

##

##     	if test -f $@; then :; else

##

##   cannot be used in this case: If a .i file dependecy is not met,

##   then the .cc file needs to be rebuilt.  But if the stamp is newer

##   than the .cc file, and the .cc file exists, then in the original

##   version (with the 'test' above) the internal MAKE call will not

##   be issued and hence the .cc file will not be rebuilt.

##

## Once execution gets to here, it should always proceed no matter the

## state of a stamp (as discussed in link above).  The

## $(DEPDIR)/usrp2-generate stuff is used to allow for parallel

## builds to "do the right thing".  The stamp has no relationship with

## either the target files or dependency file; it is used solely for

## the protection of multiple builds during a given call to MAKE.

##

## Catch signals SIGHUP (1), SIGINT (2), SIGPIPE (13), and SIGTERM

## (15).  At a caught signal, the quoted command will be issued before

## exiting.  In this case, remove any stamp, whether temporary of not.

## The trap is valid until the process exits; the process includes all

## commands appended via "\"s.

##

	trap 'rm -rf $(DEPDIR)/usrp2-generate-*' 1 2 13 15; \

##

## Create a temporary directory, which acts as a lock.  The first

## process to create the directory will succeed and issue the MAKE

## command to do the actual work, while all subsequent processes will

## fail -- leading them to wait for the first process to finish.

##

	if mkdir $(DEPDIR)/usrp2-generate-lock 2>/dev/null; then \

##

## This code is being executed by the first process to succeed in

## creating the directory lock.

##

## Remove the stamp associated with this filename.

##

		rm -f $(DEPDIR)/usrp2-generate-*stamp; \

##

## Tell MAKE to run the rule for creating this stamp.

##

		$(MAKE) $(AM_MAKEFLAGS) $(DEPDIR)/usrp2-generate-python-stamp WHAT=$<; \

		$(MAKE) $(AM_MAKEFLAGS) $(DEPDIR)/usrp2-generate-guile-stamp WHAT=$<; \

##

## Now that the .cc, .h, and .py files have been (re)created from the

## .i file, future checking of this rule during the same MAKE

## execution will come back that the rule doesn't need to be executed

## because none of the conditions mentioned at the start of this rule

## will be positive.  Remove the the directory lock, which frees up

## any waiting process(es) to continue.

##

		rmdir $(DEPDIR)/usrp2-generate-lock; \

	else \

##

## This code is being executed by any follower processes while the

## directory lock is in place.

##

## Wait until the first process is done, testing once per second.

##

		while test -d $(DEPDIR)/usrp2-generate-lock; do \

			sleep 1; \

		done; \

##

## Succeed if and only if the first process succeeded; exit this

## process returning the status of the generated stamp.

##

		test -f $(DEPDIR)/usrp2-generate-python-stamp; \

		exit $$?; \

	fi;

$(DEPDIR)/usrp2-generate-guile-stamp:

	if $(SWIG) $(STD_SWIG_GUILE_ARGS) $(usrp2_swig_args) \

		-MD -MF $(DEPDIR)/usrp2.Std \

		-module usrp2 -o usrp2-guile.cc $(WHAT); then \

	    if test $(host_os) = mingw32; then \

		$(RM) $(DEPDIR)/usrp2.Sd; \

		$(SED) 's,\\\\,/,g' < $(DEPDIR)/usrp2.Std \

			> $(DEPDIR)/usrp2.Sd; \

		$(RM) $(DEPDIR)/usrp2.Std; \

		$(MV) $(DEPDIR)/usrp2.Sd $(DEPDIR)/usrp2.Std; \

	    fi; \

	else \

	    $(RM) $(DEPDIR)/usrp2.S*; exit 1; \

	fi;

	touch $(DEPDIR)/usrp2-generate-guile-stamp

$(DEPDIR)/usrp2-generate-python-stamp:

## This rule will be called only by the first process issuing the

## above rule to succeed in creating the lock directory, after

## removing the actual stamp file in order to guarantee that MAKE will

## execute this rule.

##

## Call SWIG to generate the various output files; special

## post-processing on 'mingw32' host OS for the dependency file.

##

	if $(SWIG) $(STD_SWIG_PYTHON_ARGS) $(usrp2_swig_args) \

		-MD -MF $(DEPDIR)/usrp2.Std \

		-module usrp2 -o usrp2-python.cc $(WHAT); then \

	    if test $(host_os) = mingw32; then \

		$(RM) $(DEPDIR)/usrp2.Sd; \

		$(SED) 's,\\\\,/,g' < $(DEPDIR)/usrp2.Std \

			> $(DEPDIR)/usrp2.Sd; \

		$(RM) $(DEPDIR)/usrp2.Std; \

		$(MV) $(DEPDIR)/usrp2.Sd $(DEPDIR)/usrp2.Std; \

	    fi; \

	else \

	    $(RM) $(DEPDIR)/usrp2.S*; exit 1; \

	fi;

##

## Mess with the SWIG output .Std dependency file, to create a

## dependecy file valid for the input .i file: Basically, simulate the

## dependency file created for libraries by GNU's libtool for C++,

## where all of the dependencies for the target are first listed, then

## each individual dependency is listed as a target with no further

## dependencies.

##

## (1) remove the current dependency file

##

	$(RM) $(DEPDIR)/usrp2.d

##

## (2) Copy the whole SWIG file:

##

	cp $(DEPDIR)/usrp2.Std $(DEPDIR)/usrp2.d

##

## (3) all a carriage return to the end of the dependency file.

##

	echo "" >> $(DEPDIR)/usrp2.d

##

## (4) from the SWIG file, remove the first line (the target); remove

##     trailing " \" and " " from each line.  Append ":" to each line,

##     followed by 2 carriage returns, then append this to the end of

##     the dependency file.

##

	$(SED) -e '1d;s, \\,,g;s, ,,g' < $(DEPDIR)/usrp2.Std | \

		awk '{ printf "%s:\n\n", $$0 }' >> $(DEPDIR)/usrp2.d

##

## (5) remove the SWIG-generated file

##

	$(RM) $(DEPDIR)/usrp2.Std

##

## Create the stamp for this filename generation, to signal success in

## executing this rule; allows other threads waiting on this process

## to continue.

##

	touch $(DEPDIR)/usrp2-generate-python-stamp

# KLUDGE: Force runtime include of a SWIG dependency file.  This is

# not guaranteed to be portable, but will probably work.  If it works,

# we have accurate dependencies for our swig stuff, which is good.

@am__include@ @am__quote@./$(DEPDIR)/usrp2.d@am__quote@