1 dnl Process this with autoconf to create configure
6 # This works around the fact that libtool configuration may change LD
7 # for this particular configuration, but some shells, instead of
8 # keeping the changes in LD private, export them just because LD is
10 ORIGINAL_LD_FOR_MULTILIBS=$LD
12 dnl We may get other options which we dont document:
13 dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
15 if test "x[$]{with_target_subdir}" != x && \
16 test "[$]{srcdir}" = "."; then
17 if test "[$]{with_target_subdir}" != "."; then
18 zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../"
20 zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}"
23 zlib_basedir="[$]{srcdir}/"
25 AC_SUBST(zlib_basedir)
26 AC_CONFIG_AUX_DIR($zlib_basedir..)
28 # This overrides the previous occurrence for automake, but not for
29 # autoconf, which is exactly what we want.
35 # This works around an automake problem.
36 mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
37 AC_SUBST(mkinstalldirs)
39 AM_INIT_AUTOMAKE(zlib, 1.1.4)
43 dnl We use these options to decide which functions to include.
44 AC_ARG_WITH(target-subdir,
45 [ --with-target-subdir=SUBDIR
46 configuring in a subdirectory])
47 AC_ARG_WITH(cross-host,
48 [ --with-cross-host=HOST configuring with a cross compiler])
50 dnl Default to --enable-multilib
51 AC_ARG_ENABLE(multilib,
52 [ --enable-multilib build many library versions (default)],
53 [case "${enableval}" in
56 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
57 esac], [test -z "$with_target_subdir" && multilib=no || multilib=yes])dnl
59 AC_ARG_WITH(system-zlib,
60 [ --with-system-zlib use installed libz])
63 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
64 # at least currently, we never actually build a program, so we never
65 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
66 # fails, because we are probably configuring with a cross compiler
67 # which cant create executables. So we include AC_EXEEXT to keep
68 # automake happy, but we dont execute it, since we dont care about
71 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
72 # to nothing, so nothing would remain between `then' and `fi' if it
73 # were not for the `:' below.
79 if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
86 # Find CPP now so that any conditional tests below won't do it and
87 # thereby make the resulting definitions conditional.
90 if test -n "$with_cross_host"; then
91 # We are being configured with a cross compiler. AC_REPLACE_FUNCS
92 # may not work correctly, because the compiler may not be able to
95 # We assume newlib. This lets us hard-code the functions we know
97 AC_DEFINE(HAVE_MEMCPY)
98 AC_DEFINE(HAVE_STRERROR)
100 # We ignore --with-system-zlib in this case.
101 target_all=libzgcj.la
104 AC_CHECK_FUNCS(memcpy strerror)
106 if test "$with_system_zlib" = yes; then
107 AC_CHECK_LIB(z, deflate, target_all=, target_all=libzgcj.la)
109 target_all=libzgcj.la
115 AC_CHECK_HEADERS(unistd.h)
117 if test -n "$with_cross_host" &&
118 test x"$with_cross_host" != x"no"; then
119 toolexecdir='$(exec_prefix)/$(target_alias)'
120 toolexeclibdir='$(toolexecdir)/lib'
122 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
123 toolexeclibdir='$(libdir)'
125 if test "$GCC" = yes && $CC -print-multi-os-directory > /dev/null 2>&1; then
126 multiosdir=/`$CC -print-multi-os-directory`
128 /.) multiosdir= ;; # Avoid trailing /.
133 toolexeclibdir=${toolexeclibdir}${multiosdir}
134 AC_SUBST(toolexecdir)
135 AC_SUBST(toolexeclibdir)
137 AM_CONDITIONAL(TARGET_LIBRARY, test -n "$with_target_subdir")
139 if test "${multilib}" = "yes"; then
140 multilib_arg="--enable-multilib"
146 [if test -n "$CONFIG_FILES"; then
147 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
148 ac_file=Makefile . ${zlib_basedir}/../config-ml.in
153 with_multisubdir=${with_multisubdir}
154 ac_configure_args="${multilib_arg} ${ac_configure_args}"
155 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
156 zlib_basedir=${zlib_basedir}
159 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"