mirror of
https://github.com/obgm/libcoap.git
synced 2026-11-07 02:02:54 +03:00
Carsten Schoenert
0dafde8564
We are going into a new release cycle which will provide new so we need new symbols and interfaces. Because of the new added symbols we need to increase LT_LIBCOAP_CURRENT to '1'. And we will be backward compatible and existing binaries linked against the previous version will also working with that new planned library release. To show this setting tune LT_LIBCOAP_AGE also to '1' as we are now one version backward compatible.
447 lines
18 KiB
Plaintext
447 lines
18 KiB
Plaintext
# configure.ac for the libcoap package
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#
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# Copyright (C) 2010-2015 Olaf Bergmann <bergmann@tzi.org>
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# (C) 2015-2016 Carsten Schoenert <c.schoenert@t-online.de>
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#
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# Please run 'autogen.sh' to let autoconf produce a configure script.
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# Define the libcoap software version here. Note! The libtool versions are
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# defined later.
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m4_define([libcoap_major_version], [4])
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m4_define([libcoap_minor_version], [2])
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m4_define([libcoap_micro_version], [0])
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# define a appending release state if needed, for example for pre-releases
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# like 'alpha' or 'rc1', for a full release keep the value empty!
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m4_define([libcoap_release_state], [alpha])
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# concatenate the full libcoap version string
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m4_define([libcoap_version], [m4_format([%s.%s.%s%s], libcoap_major_version, libcoap_minor_version, libcoap_micro_version, libcoap_release_state)])
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AC_INIT([libcoap], [libcoap_version], [libcoap-developers@lists.sourceforge.net], [libcoap], [https://libcoap.net/])
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AC_PREREQ([2.64])
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AM_INIT_AUTOMAKE([1.10 -Wall no-define no-dist-gzip dist-bzip2])
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PKG_PROG_PKG_CONFIG([0.20])
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# Generate one configuration header file for building the library itself with
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# an autogenerated template. We need later a second one (include/libcoap.h)
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# that will be installed alongside the library.
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AC_CONFIG_HEADERS([coap_config.h])
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AC_PROG_CC
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AM_PROG_CC_C_O
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AC_PROG_SED
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AC_CONFIG_MACRO_DIR([m4])
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m4_pattern_allow([AM_PROG_AR])
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AM_PROG_AR
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AC_C_BIGENDIAN
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# enable the automatically build of shared and static libraries, the unit
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# tests needs the static library
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LT_INIT([shared static])
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# Setting the libtool versioning
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###################################################################################
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# #
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# To set the version of the library, libtool provides the -version-info #
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# parameter, which accepts three numbers, separated by colons, that are called #
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# respectively, current, revision and age. Both their name and their behaviour, #
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# nowadays, have to be considered fully arbitrary, as the explanation provided #
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# in the official documentation is confusing to say the least, and can be, in #
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# some cases, considered completely wrong. #
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# https://autotools.io/libtool/version.html #
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# #
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###################################################################################
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#
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# How to work with the libtool versioning?
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#
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# Follow the followings steps from top to bottom. This means always start at point 1
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# if you plan to make a release and change the values.
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# Every new library starts with a version 'current' (short 'c') = 0
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# 'revision' (short 'r') = 0
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# 'age' (short 'a') = 0
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#
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# Update the libtool versioning only after the release of a public release of libcoap.
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# Go through the following checklist from top to bottom and check your needs, following
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# the reminded changes if you can "Yes" for specific check.
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#
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# 1. Only existing code has changed, no functional changes
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# If the library source code has changed but *no* new symbols were added at all
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# since the last update, then increment revision (c:r:a becomes c:r+1:a).
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# This is usually happen if the existing source of a function was changed for
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# bug fixing e.g.
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#
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# --> Increase the 'LT_LIBCOAP_REVISION' value with *every* new software release
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# within one release cycle.
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#
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# 2. Interfaces were added, functional changed or removed
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# If any interfaces [exported functions or data] have been added, got internal
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# changes that implies a different behaviour or removed and by this the visible
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# symbols have changed since the last update, increment current, and set
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# revision to 0 (c:r:a becomes c+1:r=0:a).
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#
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# --> Increase the 'LT_LIBCOAP_CURRENT' value whenever as an interface has been added
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# or removed. This implies also a API change! You mostly have to change the
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# 'libcoap_major_version' or at least 'libcoap_minor_version' then too!
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# --> Set 'LT_LIBCOAP_REVISION' to 0.
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#
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# 3. Interfaces were added but none removed or changed
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# If any interfaces have been added since the last public release and non of the
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# existing interfaces were removed and existing interfaces have not changed internally
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# functionality then the new library is backward compatible. Existing binaries can
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# use the new library the same than as the existing old library without loosing
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# existing functionality or breakage.
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# Increase age by 1 (c:r:a becomes c:r:a+1).
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#
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# --> Increase the 'LT_LIBCOAP_AGE' value only if the changes made to the ABI are
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# backward compatible.
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#
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# 4. Interfaces were removed or have functional changes
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# If any interfaces within the library have been removed since the last public
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# release or got some internal changes that let the interface act different than
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# before, then set age to 0. The library isn't backwards compatible.
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#
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# --> Set 'LT_LIBCOAP_AGE' to 0.
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LT_LIBCOAP_CURRENT=1
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LT_LIBCOAP_REVISION=0
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LT_LIBCOAP_AGE=1
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LIBCOAP_SO_VERSION=$LT_LIBCOAP_CURRENT.$LT_LIBCOAP_REVISION.$LT_LIBCOAP_AGE
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# Announce the libtool version
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AC_SUBST(LT_LIBCOAP_CURRENT)
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AC_SUBST(LT_LIBCOAP_REVISION)
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AC_SUBST(LT_LIBCOAP_AGE)
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AC_SUBST(LIBCOAP_SO_VERSION)
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# Defining the API Version
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LIBCOAP_API_VERSION=1
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AC_SUBST(LIBCOAP_API_VERSION)
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# Adding some default warning options for code QS
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# see https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
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# and http://www.gnu.org/software/automake/manual/html_node/Flag-Variables-Ordering.html
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WARNING_CFLAGS="\
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-pedantic \
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-Wall \
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-Wextra \
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-Wformat-security \
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-Winline \
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-Wmissing-declarations \
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-Wmissing-prototypes \
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-Wnested-externs \
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-Wpointer-arith \
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-Wshadow \
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-Wstrict-prototypes \
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-Wswitch-default \
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-Wswitch-enum \
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-Wunused \
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"
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# check whether or not the compiler supports -Wlogical-op (clang does not...)
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AX_CHECK_COMPILE_FLAG([-Wlogical-op], [WARNING_CFLAGS="$WARNING_CFLAGS -Wlogical-op"],,[-Werror])
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AX_CHECK_COMPILE_FLAG([-fdiagnostics-color], [CFLAGS="$CFLAGS -fdiagnostics-color"],,[-Werror])
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AX_CHECK_COMPILE_FLAG([-Wunused-result], [WARNING_CFLAGS="$WARNING_CFLAGS -Wunused-result"])
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AC_SUBST([WARNING_CFLAGS])
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AX_CHECK_LINK_FLAG([-Wl,--version-script=./libcoap-${LIBCOAP_API_VERSION}.map],
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[libcoap_SYMBOLS="-Wl,--version-script=\$(srcdir)/libcoap-\$(LIBCOAP_API_VERSION).map"],
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[libcoap_SYMBOLS="-export-symbols \$(srcdir)/libcoap-\$(LIBCOAP_API_VERSION).sym"])
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AC_SUBST(libcoap_SYMBOLS)
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# configure options
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# __documentation__
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AC_ARG_ENABLE([documentation],
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[AC_HELP_STRING([--enable-documentation],
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[Enable building the documentation [default=yes]])],
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[build_documentation="$enableval"],
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[build_documentation="yes"])
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if test "x$build_documentation" = "xyes"; then
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# Check for doxygen
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AC_PATH_PROGS([DOXYGEN], [doxygen])
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if test -z "$DOXYGEN"; then
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if test "x$build_documentation" = "xyes"; then
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AC_MSG_WARN([==> Doxygen not found - continuing without Doxygen support])
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AC_MSG_WARN([==> The libcoap html documentation will not be build!])
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doxygen_version="not found"
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fi
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else
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AC_MSG_CHECKING([for compatible doxygen version (>= 1.7.0)])
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doxygen_version=`$DOXYGEN --version`
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AS_VERSION_COMPARE([$doxygen_version], [1.7.0],
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[AC_MSG_RESULT([no])
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DOXYGEN=""],
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[AC_MSG_RESULT([yes $doxygen_version])],
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[AC_MSG_RESULT([yes $doxygen_version])])
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if test "x$DOXYGEN" = "x" -a "x$build_documentation" = "xyes"; then
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AC_MSG_ERROR([==> Doxygen $doxygen_version too old. Doxygen 1.7+ required for documentation build.])
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AC_MSG_ERROR([==> Install required doxygen version or disable the documentation using --disable-documentation])
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else
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# we found doxygen and the version is valid
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DOC_DIR=doc
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AC_SUBST(DOC_DIR)
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# now checking dot (needed for graphics)
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AC_PATH_PROG([DOT], [dot])
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if test "x$DOT" = "x"; then
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AC_MSG_WARN([==> dot not found - continuing without DOT support])
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AC_MSG_WARN([==> The libcoap html documentation will be build without DOT graphics!])
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HAVE_DOT="NO"
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USE_CALL_GRAPH="NO"
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else
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AC_MSG_CHECKING([for compatible dot version (>= 2.26.0)])
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case $host in
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*-freebsd1*)
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# csh and tcsh have a different output redirection than more recent shells
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# cmd >& file # Redirect both stdout and stderr to file.
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# cmd >>& file # Append both stdout and stderr to file.
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# cmd1 | cmd2 # pipe stdout to cmd2
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# cmd1 |& cmd2 # pipe stdout and stderr to cmd2
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# Using a explicit call with the default always available C-shell on FreeBSD,
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# the user may have installed another shell from a port which we don't know here
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dot_version=`export DOT=$DOT && csh -c '$DOT -V |& cut -f5 -d" "'`
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;;
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*)
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dot_version=`$DOT -V 2>&1 | cut -f5 -d" "`
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;;
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esac
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AS_VERSION_COMPARE([$dot_version], [2.26.0],
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[AC_MSG_RESULT([no])
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DOT=""],
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[AC_MSG_RESULT([yes $dot_version])],
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[AC_MSG_RESULT([yes $dot_version])])
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if test "x$DOT" = "x" -a "x$build_documentation" = "xyes"; then
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AC_MSG_WARN([==> Graphviz dot $dot_version too old. Graphviz 2.26+ required for documentation build.])
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AC_MSG_ERROR([==> Install required graphviz version or disable the documentation using --disable-documentation])
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fi
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# we found dot and the version is valid
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HAVE_DOT="YES"
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# let doxygen create caller graphics
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# see http://www.stack.nl/~dimitri/doxygen/manual/config.html#cfg_call_graph
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USE_CALL_GRAPH="YES"
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# exporting the tests to doc/Doxygen(.in)
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AC_SUBST(HAVE_DOT)
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AC_SUBST(USE_CALL_GRAPH)
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fi
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fi
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fi
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fi
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AM_CONDITIONAL(BUILD_DOCUMENTATION, [test "x$build_documentation" = "xyes"])
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AM_CONDITIONAL([HAVE_DOXYGEN],
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[test -n "$DOXYGEN"])AM_COND_IF([HAVE_DOXYGEN],
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[AC_CONFIG_FILES([doc/Doxyfile])])
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# configure options
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# __tests__
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AC_ARG_ENABLE([tests],
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[AC_HELP_STRING([--enable-tests],
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[Enable building the binary testsuite [default=no]])],
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[build_tests="$enableval"],
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[build_tests="no"])
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if test "x$build_tests" = "xyes"; then
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PKG_CHECK_MODULES([CUNIT],
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[cunit],
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[have_cunit=yes
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AC_DEFINE(HAVE_LIBCUNIT, [1], [Define if the system has libcunit])],
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[have_cunit=no
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AC_MSG_WARN([==> You want to build the testing binary but the pkg-config file cunit.pc could not be found or installed CUnit version is too old!])
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AC_MSG_ERROR([==> Install the package(s) containing the development files for CUnit or disable the testing binary using --disable-tests.])
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])
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fi
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AM_CONDITIONAL(HAVE_CUNIT, [test "x$CUNIT_LIBS" != "x"])
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# configure options
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# __examples__
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AC_ARG_ENABLE([examples],
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[AC_HELP_STRING([--enable-examples],
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[Enable building the example binaries [default=yes]])],
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[build_examples="$enableval"],
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[build_examples="yes"])
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if test "x$build_examples" = "xyes" -a "x$build_documentation" = "xyes"; then
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AC_ARG_VAR([A2X], [a2x command])
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AC_PATH_PROG([A2X], [a2x])
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if test "x$A2X" = "x"; then
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AC_MSG_WARN([==> You want to build the examples binaries, that is also including the respective manpages but a2x was not found!])
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AC_MSG_ERROR([==> Install the package containg a2x (mostly asciidoc) or disable the build of the examples using --disable-examples.])
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fi
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build_examples="yes"
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fi
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AM_CONDITIONAL(BUILD_EXAMPLES, [test "x$build_examples" = "xyes"])
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# end configure options
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#######################
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##########################################
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# from configure options independed checks
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# Check for (ex)ctags binary
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# The needed ctags binary name differs on FreeBSD and Linux, on Linux
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# systems we search for 'ctags', on FreeBSD for 'exctags'
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case $host in
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# FreeBSD has exctags from the ctags port
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*-freebsd1*)
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AC_ARG_VAR([CTAGS_PROG],[the 'exctags' program to use for make target 'update-map-file'])
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AC_PATH_PROG([CTAGS_PROG],[exctags],[HAVE_CTAGS=no])
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;;
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*)
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# Linux distributions have exuberant-ctags
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AC_ARG_VAR([CTAGS_PROG],[the 'ctags' program to use for make target 'update-map-file'])
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AC_PATH_PROG([CTAGS_PROG],[ctags],[HAVE_CTAGS=no])
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;;
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esac
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if test "x$HAVE_CTAGS" = "xno"; then
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AC_MSG_NOTICE([==> Note: '(ex)ctags' command not found!])
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AC_MSG_WARN([==> Without ctags you will be unable to run the target 'update-map-file'!])
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AC_MSG_WARN([==> This is no problem if you just want to build the library libcoap.])
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else
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if test "`$CTAGS_PROG --help | grep '\--<LANG>-kinds'`" = ""; then
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AC_MSG_NOTICE([==> Note: Your ctags binary does not support '--c-kinds'!])
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AC_MSG_NOTICE([==> Most likely, you are using the GNU Emacs ctag and not exuberant ctag.])
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AC_MSG_WARN([==> This option is required for the target 'update-map-file'.])
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AC_MSG_WARN([==> which is not a problem if you just want to build the library libcoap.])
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fi
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fi
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# Checks for header files.
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AC_CHECK_HEADERS([assert.h arpa/inet.h limits.h netdb.h netinet/in.h \
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stdlib.h string.h strings.h sys/socket.h sys/time.h \
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time.h unistd.h sys/unistd.h syslog.h])
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# Checks for typedefs, structures, and compiler characteristics.
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AC_TYPE_SIZE_T
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AC_TYPE_SSIZE_T
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# Checks for library functions.
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AC_CHECK_FUNCS([memset select socket strcasecmp strrchr getaddrinfo \
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strnlen malloc])
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# Check if -lsocket -lnsl is required (specifically Solaris)
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AC_SEARCH_LIBS([socket], [socket])
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AC_SEARCH_LIBS([inet_ntop], [nsl])
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# Check if clock_gettime() requires librt, when available
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AC_SEARCH_LIBS([clock_gettime], [rt])
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AC_MSG_CHECKING([operating system])
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# Set up here some extra platform depended defines and variables.
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# The "ADDITIONAL_CFLAGS" is need as this stand-alone definition
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# for the doxygen part.
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case $host in
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*-linux* | *-uclinux*)
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AC_MSG_RESULT([Linux])
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ADDITIONAL_CFLAGS="-D_GNU_SOURCE -DWITH_POSIX"
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# Not yet needed but if some code definitions have to depend on the platform.
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#AC_DEFINE(OS_LINUX, 1, [Linux backend])
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#AC_SUBST(OS_LINUX)
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;;
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*-solaris*)
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AC_MSG_RESULT([Solaris])
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# set _XOPEN_SOURCE and _XOPEN_SOURCE_EXTENDED to enable XPG4v2 (POSIX 2004)
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# set __EXTENSION__ to shut up feature test macros that restrict -std=c99
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# to only C99 (and nothing newer)
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ADDITIONAL_CFLAGS="-D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=600 -D__EXTENSIONS__=1 -DWITH_POSIX"
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;;
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*-darwin*)
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AC_MSG_RESULT([Darwin])
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ADDITIONAL_CFLAGS="-D_GNU_SOURCE -DWITH_POSIX"
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AC_DEFINE(__APPLE_USE_RFC_3542, 1, [Define this to 1 for ancillary data on MacOS])
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# Not yet needed but if some code definitions have to depend on the platform.
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#AC_DEFINE(OS_MACOS, 1, [MacOS backend])
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#AC_SUBST(OS_MACOS)
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;;
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*-freebsd1*)
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AC_MSG_RESULT([FreeBSD-1x])
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ADDITIONAL_CFLAGS="-D_GNU_SOURCE -DWITH_POSIX"
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;;
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*kfreebsd*)
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AC_MSG_RESULT([kFreeBSD])
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ADDITIONAL_CFLAGS="-D_GNU_SOURCE -DWITH_POSIX"
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;;
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*)
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AC_MSG_WARN([==> Currently unsupported operating system '${host}' !])
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AC_MSG_ERROR([==> If you can provide patches to support your operating system please write to 'libcoap-developers@lists.sourceforge.net'.])
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esac
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# Exporting the PREDEFINED_CFLAGS definition
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PREDEFINED_CFLAGS=`echo $ADDITIONAL_CFLAGS | $SED -e 's/-D//g'`
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AC_SUBST(PREDEFINED_CFLAGS)
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# And finaly combining the CFLAGS together ...
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CFLAGS="$CFLAGS $ADDITIONAL_CFLAGS"
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# Override the various template files, currently just makefiles and the
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# pkgconfig *.pc file.
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# Later if the API version is changing dont forget to change the
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# libcoap-$LIBCOAP_API_VERSION.pc.in file too!! You will have to change
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# the 'Cflags' variable to something like
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# Cflags: -I${includedir}/coap-@LIBCOAP_API_VERSION@
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#
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AC_CONFIG_FILES([
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Makefile
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doc/Makefile
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examples/Makefile
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examples/coap-client.txt
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examples/coap-server.txt
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examples/coap-rd.txt
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include/coap/coap.h
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tests/Makefile
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libcoap-$LIBCOAP_API_VERSION.pc:libcoap-$LIBCOAP_API_VERSION.pc.in
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])
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AC_OUTPUT
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AC_MSG_RESULT([
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libcoap configuration summary:
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libcoap package version : "$PACKAGE_VERSION"
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libcoap library version : "$LIBCOAP_SO_VERSION"
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libcoap API version : "$LIBCOAP_API_VERSION"
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host system : "$host"]);
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if test "x$build_documentation" = "xyes" -a "x$DOXYGEN" != "x"; then
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AC_MSG_RESULT([ build documentation : "yes"])
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AC_MSG_RESULT([ --> Doxygen around : "yes" ($DOXYGEN $doxygen_version)])
|
|
if test "x$DOT" = "x"; then
|
|
AC_MSG_RESULT([ --> dot around : "no" (DOT not found!)])
|
|
else
|
|
AC_MSG_RESULT([ --> dot around : "yes" ($DOT $dot_version)])
|
|
fi
|
|
else
|
|
if test "x$build_documentation" = "xno"; then
|
|
AC_MSG_RESULT([ build documentation : "no"])
|
|
fi
|
|
fi
|
|
if test "x$build_tests" = "xyes"; then
|
|
AC_MSG_RESULT([ build unit test binary : "yes"])
|
|
else
|
|
AC_MSG_RESULT([ build unit test binary : "no"])
|
|
fi
|
|
if test "x$build_examples" = "xyes"; then
|
|
AC_MSG_RESULT([ build examples : "yes"])
|
|
if test "x$A2X" != "x"; then
|
|
AC_MSG_RESULT([ --> use a2x : "yes" ($A2X)])
|
|
else
|
|
AC_MSG_RESULT([ --> use a2x : "no"])
|
|
fi
|
|
else
|
|
AC_MSG_RESULT([ build examples : "no"])
|
|
fi
|