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
|
AC_DEFUN([AX_CHECK_BZLIB],
#
# Handle user hints
#
[AC_MSG_CHECKING(if bzip2 is wanted)
bzlib_places="/usr/local /usr /opt/local /sw"
AC_ARG_WITH([bzip2],
[ --with-bzip2=DIR root directory path of bzip2 installation @<:@defaults to
/usr/local or /usr if not found in /usr/local@:>@
--without-bzip2 to disable bzip2 usage completely],
[if test "$withval" != no ; then
AC_MSG_RESULT(yes)
if test -d "$withval"
then
bzlib_places="$withval $bzlib_places"
else
AC_MSG_WARN([Sorry, $withval does not exist, checking usual places])
fi
else
bzlib_places=
AC_MSG_RESULT(no)
fi],
[AC_MSG_RESULT(yes)])
#
# Locate bzip2, if wanted
#
if test -n "${bzlib_places}"
then
# check the user supplied or any other more or less 'standard' place:
# Most UNIX systems : /usr/local and /usr
# MacPorts / Fink on OSX : /opt/local respectively /sw
for bzlib_HOME in ${bzlib_places} ; do
if test -f "${bzlib_HOME}/include/bzlib.h"; then break; fi
bzlib_HOME=""
done
bzlib_OLD_LDFLAGS=$LDFLAGS
bzlib_OLD_CPPFLAGS=$CPPFLAGS
if test -n "${bzlib_HOME}"; then
LDFLAGS="$LDFLAGS -L${bzlib_HOME}/lib"
CPPFLAGS="$CPPFLAGS -I${bzlib_HOME}/include"
fi
AC_LANG_SAVE
AC_LANG_C
AC_CHECK_LIB([bz2], [BZ2_bzDecompressInit], [bzlib_cv_libbz2=yes], [bzlib_cv_libbz2=no])
AC_CHECK_HEADER([bzlib.h], [bzlib_cv_bzlib_h=yes], [bzlib_cv_bzlib_h=no])
AC_LANG_RESTORE
if test "$bzlib_cv_libbz2" = "yes" && test "$bzlib_cv_bzlib_h" = "yes"
then
#
# If both library and header were found, action-if-found
#
m4_ifblank([$1],[
CPPFLAGS="$CPPFLAGS -I${bzlib_HOME}/include"
LDFLAGS="$LDFLAGS -L${bzlib_HOME}/lib"
LIBS="-lbz2 $LIBS"
AC_DEFINE([HAVE_BZLIB], [1],
[Define to 1 if you have `bz2' library (-lbz2)])
],[
# Restore variables
LDFLAGS="$bzlib_OLD_LDFLAGS"
CPPFLAGS="$bzlib_OLD_CPPFLAGS"
$1
])
else
#
# If either header or library was not found, action-if-not-found
#
m4_default([$2],[
AC_MSG_ERROR([either specify a valid bzip2 installation with --with-bzip2=DIR or disable bzip2 usage with --without-bzip2])
])
fi
fi
])
|
