configure.ac

#
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
#
# Copyright 2019 Mike Becker, Olaf Wintermann All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#   1. Redistributions of source code must retain the above copyright
#      notice, this list of conditions and the following disclaimer.
#
#   2. Redistributions in binary form must reproduce the above copyright
#      notice, this list of conditions and the following disclaimer in the
#      documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

# the package version must match the macros in ucx.h
# the lib version must follow the libtool versioning convention
AC_INIT([ucx], [2.1.0], [olaf.wintermann@gmail.com])
AC_SUBST([UCX_LIB_VERSION], [4:0:1])

# don't place everything in the project root
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])

# we use our own directory structure
AM_INIT_AUTOMAKE([foreign -Wall -Werror])

# if there is an archiver, use it
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])

# we are compiling a library
LT_INIT

# we are dealing with C source code
AC_PROG_CC

# we want to support automake < 1.14, so we need this deprecated macro
# it tests, whether the compiler allows -c and -o simultaneously
# in modern versions of autoconf, this is done by AC_PROG_CC
AM_PROG_CC_C_O

# we want c11, and may fall back to c99
AX_CHECK_COMPILE_FLAG([-std=c11],
    [AX_APPEND_FLAG([-std=c11])],
    [AC_PROG_CC_C99]
)

# where to place config macros
AC_CONFIG_HEADERS([config.h])

# our Makefiles
AC_CONFIG_FILES([Makefile src/Makefile test/Makefile])

# GO
AC_OUTPUT