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################################################################################
# Process this file with autoconf to produce a configure script.
################################################################################
AC_INIT([freealut library],[1.1.0],[openal-devel@opensource.creative.com],[freealut])
AC_CONFIG_AUX_DIR([admin/autotools])
AM_INIT_AUTOMAKE
AM_MAINTAINER_MODE
AC_PREREQ(2.61)
AC_CONFIG_SRCDIR([AUTHORS])
AC_CONFIG_HEADERS([config.h])
# Compatibility hack for older autoconf versions
m4_ifdef([AS_HELP_STRING], [], [AC_DEFUN([AS_HELP_STRING], [AS_HELP_STRING([$@])])])
################################################################################
## libtool shared library version.
################################################################################
# Some information from the libtool info pages and the autobook regarding how to
# handle the library version info:
#
# 1. Start with version information of `0:0:0' for each libtool library.
#
# 2. Update the version information only immediately before a public release of
# your software. More frequent updates are unnecessary, and only guarantee
# that the current interface number gets larger faster.
#
# 3. If the library source code has changed at all since the last update, then
# increment REVISION (`C:R:A' becomes `C:r+1:A'). This is a new revision of
# the current interface.
#
# 4. If any interfaces have been added, removed, or changed since the last
# update, increment CURRENT, and set REVISION to 0. This is the first
# revision of a new interface.
#
# 5. If any interfaces have been added since the last public release, then
# increment AGE. This release is backwards compatible with the previous
# release.
#
# 6. If any interfaces have been removed since the last public release, then set
# AGE to 0. This release has a new, but backwards incompatible interface.
#
# NEVER try to set the interface numbers so that they correspond to the release
# number of your package. This is an abuse that only fosters misunderstanding of
# the purpose of library versions. Furthermore, do not confuse those versions
# with the version of the specification which is implemented.
CURRENT=1
REVISION=0
AGE=1
AC_SUBST([VERSIONINFO], ["$CURRENT:$REVISION:$AGE"])
################################################################################
# Checks for programs.
################################################################################
AC_PROG_CC
AC_C_CONST
ALUT_C__ATTRIBUTE__
# Note that -fvisibility=... support implies __attribute__((visibility(...)))
# support.
ALUT_CHECK_FLAG([-fvisibility=hidden],
[AM_CFLAGS="$AM_CFLAGS -fvisibility=hidden"
AC_DEFINE([HAVE_GCC_VISIBILITY], [1],
[Define to 1 if we are using a GCC with symbol visibility support.])])
# test_suite/test_retrostuff tests deprecated functions, but we don't want to
# get compiler warnings because of that.
ALUT_CHECK_FLAG([-Wno-deprecated-declarations],
[alut_wno_deprecated_declarations=yes],
[alut_wno_deprecated_declarations=no])
AM_CONDITIONAL([WNO_DEPRECATED_DECLARATIONS],
[test x"$alut_wno_deprecated_declarations" = xyes])
AC_EXEEXT
AC_LIBTOOL_WIN32_DLL
AC_PROG_LIBTOOL
AC_SUBST([LIBTOOL_DEPS])
AC_DEFINE([ALUT_BUILD_LIBRARY], [1], [Define to 1 if you want to build the ALUT DLL.])
# Checks for libraries. (not perfect yet)
AC_SEARCH_LIBS([pthread_create], [pthread])
AC_SEARCH_LIBS([alGetError], [openal32 openal])
################################################################################
# Checks for header files.
################################################################################
# We could possibly need struct timespec and random(), which are not ANSI.
AC_DEFINE([_XOPEN_SOURCE], [500], [Define to 500 if Single Unix conformance is wanted, 600 for sixth revision.])
# We might need nanosleep, which is a POSIX IEEE Std 1003.1b-1993 feature.
AC_DEFINE([_POSIX_C_SOURCE], [199309], [Define to the POSIX version that should be used.])
# Without __NO_CTYPE tolower and friends are macros which introduce a GLIBC 2.3
# dependency. By defining this identifier we are currently backwards compatible
# to GLIBC 2.1.3, which is a good thing. In addition, the macros lead to code
# which triggers warnings with -Wunreachable-code.
AC_DEFINE([__NO_CTYPE], [1], [Define to 1 if tolower and friends should not be macros.])
AC_HEADER_STDC
AC_CHECK_HEADERS([AL/alc.h AL/al.h basetsd.h ctype.h math.h stdio.h time.h windows.h])
# Checks for library functions.
ALUT_CHECK_FUNC([[@%:@include <time.h>]],
[nanosleep], [[((struct timespec*)0, (struct timespec*)0)]])
ALUT_CHECK_FUNC([[@%:@include <unistd.h>]],
[usleep], [[(0)]])
ALUT_CHECK_FUNC([[@%:@include <windows.h>]],
[Sleep], [[(0)]])
ALUT_CHECK_FUNC([[@%:@include <sys/types.h>
@%:@include <sys/stat.h>
@%:@include <unistd.h>]],
[stat], [[("", (struct stat*)0)]])
ALUT_CHECK_FUNC([[@%:@include <sys/types.h>
@%:@include <sys/stat.h>]],
[_stat], [[("", (struct _stat*)0)]])
AC_CHECK_LIBM
AC_SUBST([LIBM])
################################################################################
# Build time configuration.
################################################################################
AC_ARG_ENABLE([warnings],
[AS_HELP_STRING([--enable-warnings],
[enable pedantic compiler warnings @<:@default=yes@:>@])])
if test "x$enable_warnings" != xno; then
# Doing it in two steps gives a nicer message...
AX_CFLAGS_WARN_ALL_ANSI([flags])
AM_CFLAGS="$AM_CFLAGS $flags"
fi
AC_ARG_ENABLE([more-warnings],
[AS_HELP_STRING([--enable-more-warnings],
[enable even more compiler warnings @<:@default=no@:>@])])
if test "x$enable_more_warnings" = xyes; then
if test "x$enable_warnings" = xno; then
AC_MSG_WARN([--enable-more-warnings ignored because of --disable-warnings])
elif test "x$GCC" != xyes; then
AC_MSG_WARN([--enable-more-warnings ignored because no GCC was detected])
else
# The long list of warning options below contains every GCC warning option
# which is not automatically enabled with -Wall. The only exceptions to this
# rule are:
#
# -Wpadded:
# Perhaps good for optimizing out data layout, but not in general.
#
# -Wconversion:
# Passing e.g. float as an argument is fine, we always have prototypes.
#
# Note that some older GCC versions give false positives about unreachable
# code.
AM_CFLAGS="$AM_CFLAGS -W -Waggregate-return -Wbad-function-cast -Wcast-align -Wcast-qual -Wdisabled-optimization -Wendif-labels -Wfloat-equal -Winline -Wlong-long -Wmissing-declarations -Wmissing-format-attribute -Wmissing-noreturn -Wmissing-prototypes -Wnested-externs -Wpacked -Wpointer-arith -Wredundant-decls -Wshadow -Wsign-compare -Wstrict-prototypes -Wundef -Wunreachable-code -Wwrite-strings"
# Check for GCC 4.x-only warning options.
ALUT_CHECK_FLAG([-Wdeclaration-after-statement],
[AM_CFLAGS="$AM_CFLAGS -Wdeclaration-after-statement"])
ALUT_CHECK_FLAG([-Winvalid-pch],
[AM_CFLAGS="$AM_CFLAGS -Winvalid-pch"])
ALUT_CHECK_FLAG([-Wmissing-field-initializers],
[AM_CFLAGS="$AM_CFLAGS -Wmissing-field-initializers"])
# We cheat here a bit: The code generated by AC_LANG_PROGRAM triggers a
# warning with -Wold-style-definition, so we assume that this flag is
# supported whenever -Wvariadic-macros is.
ALUT_CHECK_FLAG([-Wvariadic-macros],
[AM_CFLAGS="$AM_CFLAGS -Wvariadic-macros -Wold-style-definition"])
fi
fi
AC_ARG_ENABLE([werror],
[AS_HELP_STRING([--enable-werror],
[enable failure on all warnings @<:@default=no@:>@])])
if test "x$enable_werror" = xyes; then
if test "x$enable_warnings" = xno; then
AC_MSG_WARN([--enable-werror ignored because of --disable-warnings])
elif test "x$GCC" != xyes; then
AC_MSG_WARN([--enable-werror ignored because no GCC was detected])
else
AM_CFLAGS="$AM_CFLAGS -Werror"
fi
fi
AC_ARG_ENABLE([efence],
[AS_HELP_STRING([--enable-efence],
[enable Electric Fence support @<:@default=no@:>@])])
if test "x$enable_efence" = xyes; then
alut_saved_LIBS=$LIBS
LIBS="-lefence $LIBS"
AC_LINK_IFELSE([AC_LANG_PROGRAM([extern int EF_ALIGNMENT;], [EF_ALIGNMENT = 8;])],
[:],
[AC_MSG_WARN([--enable-efence ignored because the Electric Fence library was not found.])
LIBS=$alut_saved_LIBS])
fi
################################################################################
# Generate output.
################################################################################
AC_SUBST([AM_CFLAGS])
# NOTE: Do not break the following line, otherwise we are into CR/LF vs. LF
# trouble! This is a buglet in autoconf IMHO, but easy to work around.
AC_CONFIG_FILES([Makefile admin/Makefile admin/pkgconfig/Makefile admin/pkgconfig/freealut-config admin/pkgconfig/freealut.pc admin/RPM/freealut.spec examples/Makefile include/Makefile src/Makefile test_suite/Makefile])
AC_OUTPUT
|
