1 dnl Process this with autoconf to create configure
5 # This works around the fact that libtool configuration may change LD
6 # for this particular configuration, but some shells, instead of
7 # keeping the changes in LD private, export them just because LD is
9 ORIGINAL_LD_FOR_MULTILIBS=$LD
11 dnl We may get other options which we dont document:
12 dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
14 if test "x[$]{with_target_subdir}" != x && \
15 test "[$]{srcdir}" = "."; then
16 if test "[$]{with_target_subdir}" != "."; then
17 zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../"
19 zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}"
22 zlib_basedir="[$]{srcdir}/"
24 AC_SUBST(zlib_basedir)
25 AC_CONFIG_AUX_DIR($zlib_basedir..)
27 # This overrides the previous occurrence for automake, but not for
28 # autoconf, which is exactly what we want.
34 # This works around an automake problem.
35 mkinstalldirs="`cd $ac_aux_dir && pwd`/mkinstalldirs"
36 AC_SUBST(mkinstalldirs)
38 AM_INIT_AUTOMAKE(zlib, 1.1.3)
42 dnl We use these options to decide which functions to include.
43 AC_ARG_WITH(target-subdir,
44 [ --with-target-subdir=SUBDIR
45 configuring in a subdirectory])
46 AC_ARG_WITH(cross-host,
47 [ --with-cross-host=HOST configuring with a cross compiler])
49 dnl Default to --enable-multilib
50 AC_ARG_ENABLE(multilib,
51 [ --enable-multilib build many library versions (default)],
52 [case "${enableval}" in
55 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
56 esac], [test -z "$with_target_subdir" && multilib=no || multilib=yes])dnl
58 AC_ARG_WITH(system-zlib,
59 [ --with-system-zlib use installed libz])
62 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
63 # at least currently, we never actually build a program, so we never
64 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
65 # fails, because we are probably configuring with a cross compiler
66 # which cant create executables. So we include AC_EXEEXT to keep
67 # automake happy, but we dont execute it, since we dont care about
70 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
71 # to nothing, so nothing would remain between `then' and `fi' if it
72 # were not for the `:' below.
78 if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
85 # Find CPP now so that any conditional tests below won't do it and
86 # thereby make the resulting definitions conditional.
89 if test -n "$with_cross_host"; then
90 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
91 # may not work correctly, because the compiler may not be able to
94 # We assume newlib. This lets us hard-code the functions we know
96 AC_DEFINE(HAVE_MEMCPY)
97 AC_DEFINE(HAVE_STRERROR)
99 # We ignore --with-system-zlib in this case.
100 target_all=libzgcj.la
103 AC_CHECK_FUNCS(memcpy strerror)
105 if test "$with_system_zlib" = yes; then
106 AC_CHECK_LIB(z, deflate, target_all=, target_all=libzgcj.la)
108 target_all=libzgcj.la
114 AC_CHECK_HEADERS(unistd.h)
116 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
117 AM_CONDITIONAL(TARGET_LIBRARY, test -n "$with_target_subdir")
119 if test "${multilib}" = "yes"; then
120 multilib_arg="--enable-multilib"
126 [if test -n "$CONFIG_FILES"; then
127 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
128 ac_file=Makefile . ${zlib_basedir}/../config-ml.in
133 with_multisubdir=${with_multisubdir}
134 ac_configure_args="${multilib_arg} ${ac_configure_args}"
135 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
136 zlib_basedir=${zlib_basedir}