aboutsummaryrefslogtreecommitdiff
path: root/zlib/configure.ac
blob: 57d6fa56b69b2a90d8a637309639b4ef5c90e196 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
dnl Process this with autoconf to create configure

AC_PREREQ(2.64)
AC_INIT
AC_CONFIG_SRCDIR([zlib.h])

if test -n "${with_target_subdir}"; then
  AM_ENABLE_MULTILIB(, ..)
fi

AC_CANONICAL_SYSTEM

# This works around an automake problem.
mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
AC_SUBST(mkinstalldirs)

AM_INIT_AUTOMAKE(zlib, 1.1.4)

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])

if test -z "$with_target_subdir" || test "$with_target_subdir" = "."; then
   COMPPATH=.
else
   COMPPATH=..
fi
AC_SUBST(COMPPATH)

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])

# Make sure we don't test executables when making cross-tools.
GCC_NO_EXECUTABLES

# The same as in boehm-gc and libstdc++. Have to borrow it from there.
# We must force CC to /not/ be precious variables; otherwise
# the wrong, non-multilib-adjusted value will be used in multilibs.
# As a side effect, we have to subst CFLAGS ourselves.

m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AC_PROG_CC
m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])

AC_SUBST(CFLAGS)

AC_PROG_LIBTOOL

# 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)

if test -n "$with_cross_host" &&
   test x"$with_cross_host" != x"no"; then
  toolexecdir='$(exec_prefix)/$(target_alias)'
  toolexeclibdir='$(toolexecdir)/lib'
else
  toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
  toolexeclibdir='$(libdir)'
fi
if test "$GCC" = yes && $CC -print-multi-os-directory > /dev/null 2>&1; then
  multiosdir=/`$CC -print-multi-os-directory`
  case $multiosdir in
    /.) multiosdir= ;; # Avoid trailing /.
  esac
else
  multiosdir=
fi
toolexeclibdir=${toolexeclibdir}${multiosdir}
AC_SUBST(toolexecdir)
AC_SUBST(toolexeclibdir)

AM_CONDITIONAL(TARGET_LIBRARY, test -n "$with_target_subdir")

if test "${multilib}" = "yes"; then
  multilib_arg="--enable-multilib"
else
  multilib_arg=
fi

AC_ARG_ENABLE(host-shared,
[AS_HELP_STRING([--enable-host-shared],
		[build host code as shared libraries])],
[PICFLAG=-fPIC], [PICFLAG=])
AC_SUBST(PICFLAG)

AC_CONFIG_FILES([Makefile])
AC_OUTPUT