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* configure, Makefile.in: Rebuilt.
[pf3gnuchains/gcc-fork.git] / zlib / configure.in
1 dnl Process this with autoconf to create configure
2
3 AC_INIT(zlib.h)
4 AC_CANONICAL_SYSTEM
5 AM_INIT_AUTOMAKE(zlib, 1.1.3)
6
7 AM_MAINTAINER_MODE
8 AC_EXEEXT
9
10 AC_CONFIG_AUX_DIR(..)
11
12 dnl We use these options to decide which functions to include.
13 AC_ARG_WITH(target-subdir,
14 [  --with-target-subdir=SUBDIR      Configuring in a subdirectory])
15 AC_ARG_WITH(cross-host,
16 [  --with-cross-host=HOST           Configuring with a cross compiler])
17
18 dnl Default to --enable-multilib
19 AC_ARG_ENABLE(multilib,
20 [  --enable-multilib         build many library versions (default)],
21 [case "${enableval}" in
22   yes) multilib=yes ;;
23   no)  multilib=no ;;
24   *)   AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
25  esac], [multilib=yes])dnl
26
27 dnl We may get other options which we dont document:
28 dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
29
30 if test "[$]{srcdir}" = "."; then
31   if test "[$]{with_target_subdir}" != "."; then
32     zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../"
33   else
34     zlib_basedir="[$]{srcdir}/[$]{with_multisrctop}"
35   fi
36 else
37   zlib_basedir="[$]{srcdir}/"
38 fi
39 AC_SUBST(zlib_basedir)
40
41 AC_ARG_WITH(system-zlib,
42 [  --with-system-zlib               Use installed libz])
43
44 LIB_AC_PROG_CC
45 AM_PROG_LIBTOOL
46
47 if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
48    COMPPATH=.
49 else
50    COMPPATH=..
51 fi
52 AC_SUBST(COMPPATH)
53
54
55 if test -n "$with_cross_host"; then
56    # We are being configured with a cross compiler.  AC_REPLACE_FUNCS
57    # may not work correctly, because the compiler may not be able to
58    # link executables.
59
60    # We assume newlib.  This lets us hard-code the functions we know
61    # we'll have.
62    AC_DEFINE(HAVE_MEMCPY)
63    AC_DEFINE(HAVE_STRERROR)
64
65    # We ignore --with-system-zlib in this case.
66    target_all=libzgcj.la
67 else
68    AC_FUNC_MMAP
69    AC_CHECK_FUNCS(memcpy strerror)
70
71    if test "$with_system_zlib" = yes; then
72       AC_CHECK_LIB(z, deflate, target_all=, target_all=libzgcj.la)
73    else
74       target_all=libzgcj.la
75    fi
76 fi
77
78 AC_SUBST(target_all)
79
80 AC_CHECK_HEADERS(unistd.h)
81
82 if test "${multilib}" = "yes"; then
83   multilib_arg="--enable-multilib"
84 else
85   multilib_arg=
86 fi
87
88 AC_OUTPUT(Makefile,
89 [if test -n "$CONFIG_FILES"; then
90   ac_file=Makefile . ${zlib_basedir}/../config-ml.in
91 fi],
92 srcdir=${srcdir}
93 host=${host}
94 target=${target}
95 with_multisubdir=${with_multisubdir}
96 ac_configure_args="${multilib_arg} ${ac_configure_args}"
97 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
98 zlib_basedir=${zlib_basedir}
99 CC="${CC}"
100 CXX="${CXX}"
101 )