dnl Process this file with autoconf to produce a configure script for Erlang.
dnl
dnl %CopyrightBegin%
dnl
dnl Copyright Ericsson AB 1997-2012. All Rights Reserved.
dnl
dnl The contents of this file are subject to the Erlang Public License,
dnl Version 1.1, (the "License"); you may not use this file except in
dnl compliance with the License. You should have received a copy of the
dnl Erlang Public License along with this software. If not, it can be
dnl retrieved online at http://www.erlang.org/.
dnl
dnl Software distributed under the License is distributed on an "AS IS"
dnl basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
dnl the License for the specific language governing rights and limitations
dnl under the License.
dnl
dnl %CopyrightEnd%
dnl
AC_INIT(conf_vars.in)
AC_CANONICAL_HOST
dnl Checks for programs.
AC_PROG_CC
DEBUG_FLAGS="-g -DDEBUG"
if test "$GCC" = yes; then
DEBUG_FLAGS="$DEBUG_FLAGS -Wall $CFLAGS"
fi
AC_SUBST(DEBUG_FLAGS)
AC_ARG_ENABLE(debug-mode,
[ --enable-debug-mode enable debug mode],
[ case "$enableval" in
no) ;;
*) CFLAGS=$DEBUG_FLAGS ;;
esac ], )
AC_CHECK_LIB(m, sin)
#--------------------------------------------------------------------
# Interactive UNIX requires -linet instead of -lsocket, plus it
# needs net/errno.h to define the socket-related error codes.
#--------------------------------------------------------------------
AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
AC_CHECK_HEADER(net/errno.h, AC_DEFINE(HAVE_NET_ERRNO_H))
#--------------------------------------------------------------------
# Linux/tcp.h may be needed for sockopt test in kernel
#--------------------------------------------------------------------
AC_CHECK_HEADER(linux/tcp.h, AC_DEFINE(HAVE_LINUX_TCP_H))
AC_MSG_CHECKING(for sane linux/tcp.h)
AC_TRY_COMPILE([#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <linux/tcp.h>
#include <netinet/in.h>
#include <netdb.h>],
[return 0;],
have_sane_linux_tcp_h=yes,
have_sane_linux_tcp_h=no)
if test $have_sane_linux_tcp_h = yes; then
AC_DEFINE(HAVE_SANE_LINUX_TCP_H,[1],
[Define if we have sane linux/tcp.h])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
#--------------------------------------------------------------------
# Linux requires sys/socketio.h instead of sys/sockio.h
#--------------------------------------------------------------------
AC_CHECK_HEADER(sys/socketio.h, AC_DEFINE(HAVE_SOCKETIO_H))
#--------------------------------------------------------------------
# Misc
#--------------------------------------------------------------------
AC_CHECK_HEADER(poll.h, AC_DEFINE(HAVE_POLL_H))
#--------------------------------------------------------------------
# The statements below define a collection of symbols related to
# dynamic loading and shared libraries:
#
# SHLIB_CFLAGS - Flags to pass to cc when compiling the components
# of a shared library (may request position-independent
# code, among other things).
# SHLIB_LD - Base command to use for combining object files
# into a shared library.
# SHLIB_SUFFIX - Suffix to use for the names of dynamically loadable
# extensions. An empty string means we don't know how
# to use shared libraries on this platform.
#--------------------------------------------------------------------
# Step 1: set the variable "system" to hold the name and version number
# for the system.
AC_MSG_CHECKING([system version (for dynamic loading)])
system=`./config.sub $host`
AC_MSG_RESULT($system)
# Step 2: check for existence of -ldl library. This is needed because
# Linux can use either -ldl or -ldld for dynamic loading.
AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)
# Step 3: set configuration options based on system name and version.
SHLIB_LDLIBS=
fullSrcDir=`cd $srcdir; pwd`
case $system in
*-linux-*)
SHLIB_CFLAGS="-fPIC"
SHLIB_SUFFIX=".so"
if test "$have_dl" = yes; then
SHLIB_LD="${CC}"
SHLIB_LDFLAGS="$LDFLAGS -shared"
LD_FLAGS="-rdynamic"
else
AC_CHECK_HEADER(dld.h, [
SHLIB_LD="ld"
SHLIB_LDFLAGS="-shared"])
fi
SHLIB_EXTRACT_ALL=""
;;
*-netbsd*|*-freebsd*|*-openbsd*|*-dragonfly*)
# Not available on all versions: check for include file.
AC_CHECK_HEADER(dlfcn.h, [
SHLIB_CFLAGS="-fpic"
SHLIB_LD="ld"
SHLIB_LDFLAGS="$LDFLAGS -Bshareable -x"
SHLIB_SUFFIX=".so"
], [
# No dynamic loading.
SHLIB_CFLAGS=""
SHLIB_LD="ld"
SHLIB_LDFLAGS="$LDFLAGS"
SHLIB_SUFFIX=""
AC_MSG_ERROR(don't know how to compile and link dynamic drivers)
])
SHLIB_EXTRACT_ALL=""
;;
*-solaris2*|*-sysv4*)
SHLIB_CFLAGS="-KPIC"
SHLIB_LD="/usr/ccs/bin/ld"
SHLIB_LDFLAGS="$LDFLAGS -G -z text"
SHLIB_SUFFIX=".so"
SHLIB_EXTRACT_ALL="-z allextract"
;;
*darwin*)
SHLIB_CFLAGS="-fno-common"
SHLIB_LD="cc"
SHLIB_LDFLAGS="$LDFLAGS -bundle -flat_namespace -undefined suppress"
SHLIB_SUFFIX=".so"
SHLIB_EXTRACT_ALL=""
;;
*osf1*)
SHLIB_CFLAGS="-fPIC"
SHLIB_LD="ld"
SHLIB_LDFLAGS="$LDFLAGS -shared"
SHLIB_SUFFIX=".so"
SHLIB_EXTRACT_ALL=""
;;
*osf5*)
SHLIB_CFLAGS="-fPIC"
SHLIB_LD="${CC} -shared"
SHLIB_LDFLAGS="$LDFLAGS"
SHLIB_SUFFIX=".so"
SHLIB_EXTRACT_ALL=""
;;
*)
# No dynamic loading.
SHLIB_CFLAGS=""
SHLIB_LD="ld"
SHLIB_LDFLAGS=""
SHLIB_LDLIBS=""
SHLIB_SUFFIX=""
SHLIB_EXTRACT_ALL=""
AC_MSG_ERROR(don't know how to compile and link dynamic drivers)
;;
esac
# If we're running gcc, then change the C flags for compiling shared
# libraries to the right flags for gcc, instead of those for the
# standard manufacturer compiler.
if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
case $system in
*-aix)
;;
*-bsd*)
;;
*-irix)
;;
*-netbsd|*-freebsd|*-openbsd)
;;
*-riscos)
;;
*ultrix4.*)
;;
*darwin*)
;;
*)
SHLIB_CFLAGS="-fPIC"
;;
esac
fi
# Make it possible for erl_interface to use it's own compiler options
EI_CFLAGS="$CFLAGS"
# Add thread-safety flags if requested
AC_ARG_ENABLE(shlib-thread-safety,
[ --enable-shlib-thread-safety enable thread safety for build shared libraries],
[ case "$enableval" in
no) ;;
*) SHLIB_CFLAGS="$SHLIB_CFLAGS -D_THREAD_SAFE -D_REENTRANT"
CFLAGS="$CFLAGS -D_THREAD_SAFE -D_REENTRANT"
;;
esac ], )
SHLIB_CFLAGS="$SHLIB_CFLAGS $CFLAGS"
AC_SUBST(CFLAGS)
AC_SUBST(SHLIB_LD)
AC_SUBST(SHLIB_LDFLAGS)
AC_SUBST(SHLIB_LDLIBS)
AC_SUBST(SHLIB_CFLAGS)
AC_SUBST(SHLIB_SUFFIX)
AC_SUBST(SHLIB_EXTRACT_ALL)
AC_SUBST(EI_CFLAGS)
#--------------------------------------------------------------------
# Check for the existence of the -lsocket and -lnsl libraries.
# The order here is important, so that they end up in the right
# order in the command line generated by make. Here are some
# special considerations:
# 1. Use "connect" and "accept" to check for -lsocket, and
# "gethostbyname" to check for -lnsl.
# 2. Use each function name only once: can't redo a check because
# autoconf caches the results of the last check and won't redo it.
# 3. Use -lnsl and -lsocket only if they supply procedures that
# aren't already present in the normal libraries. This is because
# IRIX 5.2 has libraries, but they aren't needed and they're
# bogus: they goof up name resolution if used.
# 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
# To get around this problem, check for both libraries together
# if -lsocket doesn't work by itself.
#--------------------------------------------------------------------
erl_checkBoth=0
AC_CHECK_FUNC(connect, erl_checkSocket=0, erl_checkSocket=1)
if test "$erl_checkSocket" = 1; then
AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", erl_checkBoth=1)
fi
if test "$erl_checkBoth" = 1; then
tk_oldLibs=$LIBS
LIBS="$LIBS -lsocket -lnsl"
AC_CHECK_FUNC(accept, erl_checkNsl=0, [LIBS=$tk_oldLibs])
fi
AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main, [LIBS="$LIBS -lnsl"]))
dnl Checks for library functions.
AC_CHECK_FUNCS(strerror)
AC_CHECK_FUNCS(vsnprintf)
# First check if the library is available, then if we can choose between
# two versions of gethostbyname
AC_HAVE_LIBRARY(resolv)
AC_CHECK_LIB(resolv, res_gethostbyname,[DEFS="$DEFS -DHAVE_RES_GETHOSTBYNAME=1"])
#--------------------------------------------------------------------
# Emulator compatible flags (for drivers)
#--------------------------------------------------------------------
ERTS_CFLAGS=$CFLAGS
AC_SUBST(ERTS_CFLAGS)
ERTS_LIBS=$LIBS
AC_SUBST(ERTS_LIBS)
#--------------------------------------------------------------------
# Special compiler macro to handle cross compiling
# (HCC) is used to compile tools run in the HOST environment
#--------------------------------------------------------------------
HCC='$(CC)'
AC_SUBST(HCC)
#--------------------------------------------------------------------
# ld is used for linking on vxworks
#--------------------------------------------------------------------
LD='$(CC) $(CFLAGS)'
AC_SUBST(LD)
#--------------------------------------------------------------------
# object file suffix
#--------------------------------------------------------------------
obj='.o'
AC_SUBST(obj)
#--------------------------------------------------------------------
# executable file suffix
#--------------------------------------------------------------------
exe=''
AC_SUBST(exe)
#--------------------------------------------------------------------
# flags when linking for cross platform targets (yet 'tis useful with
# native builds)
#--------------------------------------------------------------------
CROSSLDFLAGS=''
AC_SUBST(CROSSLDFLAGS)
dnl
dnl SSL and CRYPTO needs the library openSSL/ssleay
dnl
dnl Check flags --with-ssl, --without-ssl --with-ssl=PATH.
dnl If no option is given or --with-ssl is set without a path then we
dnl search for SSL libraries and header files in the standard locations.
dnl If set to --without-ssl we disable the use of SSL
dnl If set to --with-ssl=PATH we use that path as the prefix, i.e. we
dnl use "PATH/include" and "PATH/lib".
AC_SUBST(SSLEAY_ROOT)
TARGET=$host
# We search for SSL. First in the OTP team ClearCase standard location,
# then in the common OS standard locations
# No we do not.
SSL_APP=ssl
CRYPTO_APP=crypto
SSLEAY_ROOT=$TARGET
#for dir in /usr /usr/pkg /usr/local /usr/local/ssl /usr/lib/ssl /usr/ssl; do
# AC_CHECK_HEADER($dir/include/openssl/opensslv.h,
# ac_cv_openssl=yes, ac_cv_openssl=no)
# if test $ac_cv_openssl = yes ; then
# SSLEAY_ROOT="$dir"
# ssl_found=yes
# break
# fi
#done
# Find a usable java compiler
#
# WARNING this code is copied from ERTS configure.in, and should be
# updated if that code changes. I hate duplicating code, but what
# can I do.
#
dnl ERL_TRY_LINK_JAVA(CLASSES, FUNCTION-BODY
dnl [ACTION_IF_FOUND [, ACTION-IF-NOT-FOUND]])
dnl Freely inspired by AC_TRY_LINK. (Maybe better to create a
dnl AC_LANG_JAVA instead...)
AC_DEFUN(ERL_TRY_LINK_JAVA,
[java_link='$JAVAC conftest.java 1>&AC_FD_CC'
changequote(�, �)dnl
cat > conftest.java <<EOF
�$1�
class conftest { public static void main(String[] args) {
�$2�
; return; }}
EOF
changequote([, ])dnl
if AC_TRY_EVAL(java_link) && test -s conftest.class; then
ifelse([$3], , :, [rm -rf conftest*
$3])
else
echo "configure: failed program was:" 1>&AC_FD_CC
cat conftest.java 1>&AC_FD_CC
echo "configure: PATH was $PATH" 1>&AC_FD_CC
ifelse([$4], , , [ rm -rf conftest*
$4
])dnl
fi
rm -f conftest*])
dnl
AC_CHECK_PROGS(JAVAC, javac guavac gcj jikes bock)
if test -n "$JAVAC"; then
dnl Make sure it's at least JDK 1.5
AC_CACHE_CHECK(for JDK version 1.5,
ac_cv_prog_javac_ver_1_5,
[ERL_TRY_LINK_JAVA([], [for (String i : args);],
ac_cv_prog_javac_ver_1_5=yes, ac_cv_prog_javac_ver_1_5=no)])
if test $ac_cv_prog_javac_ver_1_5 = no; then
unset -v JAVAC
fi
fi
if test -n "$JAVAC"; then
AC_SUBST(JAVAC)
:
fi
AC_CHECK_PROGS([make_command], [make gmake], [false])
AC_SUBST(make_command)
if test "$GCC" = yes; then
test_c_compiler="{gnuc, undefined}"
else
test_c_compiler="undefined"
fi
AC_SUBST(test_c_compiler)
AC_OUTPUT(conf_vars)
