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dnl Process this with autoconf to create configure
AC_INIT(zlib.h)
# This works around the fact that libtool configuration may change LD
# for this particular configuration, but some shells, instead of
# keeping the changes in LD private, export them just because LD is
# exported.
ORIGINAL_LD_FOR_MULTILIBS=$LD
dnl We may get other options which we dont document:
dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
if test "x[$]{with_target_subdir}" != x && \
test "[$]{srcdir}" = "."; then
if test "[$]{with_target_subdir}" != "."; then
zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../"
else
zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}"
fi
else
zlib_basedir="[$]{srcdir}/"
fi
AC_SUBST(zlib_basedir)
AC_CONFIG_AUX_DIR($zlib_basedir..)
if :; then :; else
# This overrides the previous occurrence for automake, but not for
# autoconf, which is exactly what we want.
AC_CONFIG_AUX_DIR(..)
fi
AC_CANONICAL_SYSTEM
# This works around an automake problem.
mkinstalldirs="`cd $ac_aux_dir && pwd`/mkinstalldirs"
AC_SUBST(mkinstalldirs)
AM_INIT_AUTOMAKE(zlib, 1.1.3)
AM_MAINTAINER_MODE
dnl We use these options to decide which functions to include.
AC_ARG_WITH(target-subdir,
[ --with-target-subdir=SUBDIR
configuring in a subdirectory])
AC_ARG_WITH(cross-host,
[ --with-cross-host=HOST configuring with a cross compiler])
dnl Default to --enable-multilib
AC_ARG_ENABLE(multilib,
[ --enable-multilib build many library versions (default)],
[case "${enableval}" in
yes) multilib=yes ;;
no) multilib=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
esac], [test -z "$with_target_subdir" && multilib=no || multilib=yes])dnl
AC_ARG_WITH(system-zlib,
[ --with-system-zlib use installed libz])
LIB_AC_PROG_CC
# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
# at least currently, we never actually build a program, so we never
# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
# fails, because we are probably configuring with a cross compiler
# which cant create executables. So we include AC_EXEEXT to keep
# automake happy, but we dont execute it, since we dont care about
# the result.
if false; then
# autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
# to nothing, so nothing would remain between `then' and `fi' if it
# were not for the `:' below.
:
AC_EXEEXT
fi
AM_PROG_LIBTOOL
if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
COMPPATH=.
else
COMPPATH=..
fi
AC_SUBST(COMPPATH)
# Find CPP now so that any conditional tests below won't do it and
# thereby make the resulting definitions conditional.
AC_PROG_CPP
if test -n "$with_cross_host"; then
# We are being configured with a cross compiler. AC_REPLACE_FUNCS
# may not work correctly, because the compiler may not be able to
# link executables.
# We assume newlib. This lets us hard-code the functions we know
# we'll have.
AC_DEFINE(HAVE_MEMCPY)
AC_DEFINE(HAVE_STRERROR)
# We ignore --with-system-zlib in this case.
target_all=libzgcj.la
else
AC_FUNC_MMAP
AC_CHECK_FUNCS(memcpy strerror)
if test "$with_system_zlib" = yes; then
AC_CHECK_LIB(z, deflate, target_all=, target_all=libzgcj.la)
else
target_all=libzgcj.la
fi
fi
AC_SUBST(target_all)
AC_CHECK_HEADERS(unistd.h)
AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
AM_CONDITIONAL(TARGET_LIBRARY, test -n "$with_target_subdir")
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
AC_OUTPUT(Makefile,
[if test -n "$CONFIG_FILES"; then
LD="${ORIGINAL_LD_FOR_MULTILIBS}"
ac_file=Makefile . ${zlib_basedir}/../config-ml.in
fi],
srcdir=${srcdir}
host=${host}
target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${multilib_arg} ${ac_configure_args}"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
zlib_basedir=${zlib_basedir}
CC="${CC}"
CXX="${CXX}"
)
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