mirror of
https://github.com/obgm/libcoap.git
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Olaf Bergmann
489df85c88
Use ld's option --version-script where available and fall back to plain symbol file otherwise. This check uses the m4 macro AX_CHECK_LINK_FLAG <http://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html>
141 lines
4.8 KiB
Makefile
141 lines
4.8 KiB
Makefile
# Makefile.am for libcoap
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#
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# Copyright (C) 2010-2015 Olaf Bergmann <bergmann@tzi.org>
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# (C) 2015 Carsten Schoenert <c.schoenert@t-online.de>
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#
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# This file is part of the CoAP C library libcoap. Please see README and
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# COPYING for terms of use.
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## Place generated object files (.o) into the same directory as their source
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## files, in order to avoid collisions when non-recursive make is used.
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AUTOMAKE_OPTIONS = subdir-objects
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ACLOCAL_AMFLAGS = ${ACLOCAL_FLAGS} -I m4
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AM_CFLAGS = -I @top_builddir@/include/coap/ $(WARNING_CFLAGS) -std=c99
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SUBDIRS = . $(DOC_DIR) tests
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## Define a libtool archive target "libcoap-@LIBCOAP_API_VERSION@.la", with
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## @LIBCOAP_API_VERSION@ substituted into the generated Makefile at configure
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## time.
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## The libtool archive file (.la) will be installed into the directory named
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## by the predefined variable $(bindir), along with the actual shared library
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## file (.so).
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lib_LTLIBRARIES = libcoap-@LIBCOAP_API_VERSION@.la
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libcoap_@LIBCOAP_API_VERSION@_la_CFLAGS = \
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-fPIC \
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-fPIE \
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$(AM_CFLAGS)
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## Define the source file list for the "libcoap.la" target.
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## Note that it is not necessary to list header files which are already listed
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## elsewhere in a _HEADERS variable assignment.
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libcoap_@LIBCOAP_API_VERSION@_la_SOURCES = \
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src/async.c \
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src/block.c \
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src/coap_io.c \
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src/debug.c \
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src/encode.c \
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src/hashkey.c \
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src/mem.c \
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src/net.c \
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src/option.c \
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src/pdu.c \
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src/resource.c \
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src/str.c \
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src/subscribe.c \
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src/uri.c
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## Define the list of public header files and their install location.
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## The list defined here will be used within the include/Makefile.am
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## and is only a variable because the content is needed also for the
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## generating of the symbol mapping file.
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libcoap_includedir = $(includedir)/coap/
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libcoap_include_HEADERS = \
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include/coap/address.h \
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include/coap/async.h \
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include/coap/bits.h \
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include/coap/block.h \
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include/coap/coap.h \
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include/coap/coap_io.h \
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include/coap/coap_time.h \
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include/coap/debug.h \
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include/coap/encode.h \
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include/coap/hashkey.h \
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include/coap/mem.h \
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include/coap/net.h \
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include/coap/option.h \
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include/coap/pdu.h \
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include/coap/prng.h \
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include/coap/resource.h \
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include/coap/str.h \
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include/coap/subscribe.h \
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include/coap/t_list.h \
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include/coap/uri.h \
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include/coap/uthash.h \
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include/coap/utlist.h
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# If there is a API change to something $(LIBCOAP_API_VERSION) > 1 the install
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# prefix for the header files has to change to not conflict the older version
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# if the user want's to install both versions. There will be something used like
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# libcoap_include_HEADERS = \
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# include/coap-$(LIBCOAP_API_VERSION)/*
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## Instruct libtool to include API version information in the generated shared
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## library file (.so). The library ABI version will later defined in configure.ac,
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## so that all version information is kept in one place.
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libcoap_@LIBCOAP_API_VERSION@_la_LDFLAGS = \
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-version-info $(LT_LIBCOAP_CURRENT):$(LT_LIBCOAP_REVISION):$(LT_LIBCOAP_AGE) \
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@libcoap_SYMBOLS@ \
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-pie
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# This helper is called by libcoap-$(LIBCOAP_API_VERSION).{map,sym} to see if
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# configure has detected a usable version of the ctags program and aborts if not.
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check_ctags=\
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@if [ "$(CTAGS_PROG)" = "" ]; then \
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echo ;\
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echo "There was no ctags program found by the configure script!" ;\
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echo "ctags is needed for running this target! Please note the warning about the missed ctags program of the configure script." ;\
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echo ;\
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exit 1;\
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fi
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.PHONY: update-map-file
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## Helper target to generate the symbol table needed by libtool.
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## The .map format is used when ld supports linker scripts, otherwise
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## it must fall back to a plain symbol file.
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update-map-file: libcoap-$(LIBCOAP_API_VERSION).map libcoap-$(LIBCOAP_API_VERSION).sym
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libcoap-$(LIBCOAP_API_VERSION).map: $(libcoap_include_HEADERS)
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$(call check_ctags)
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( echo "VER_$(LIBCOAP_API_VERSION) {" ; \
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echo "global:" ; \
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ctags -f - --c-kinds=p $^ | awk '/^coap_/ { print " " $$1 ";" }' | sort ; \
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echo "local:" ; \
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echo " *;" ; \
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echo "};" ) > $@.new
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mv $@.new $@
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libcoap-$(LIBCOAP_API_VERSION).sym: $(libcoap_include_HEADERS)
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$(call check_ctags)
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( ctags -f - --c-kinds=p $^ | awk '/^coap_/ { print $$1 }' | sort ) \
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> $@.new
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mv $@.new $@
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## Install the generated pkg-config file (.pc) into the expected location for
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## architecture-dependent package configuration information. Occasionally,
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## pkg-config files are also used for architecture-independent data packages,
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## in which case the correct install location would be $(datadir)/pkgconfig.
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pkgconfigdir = $(libdir)/pkgconfig
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pkgconfig_DATA = libcoap-$(LIBCOAP_API_VERSION).pc
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## Define an independent executable script for inclusion in the distribution
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## archive. However, it will not be installed on an end user's system due to
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## the noinst_ prefix.
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dist_noinst_SCRIPTS = autogen.sh
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