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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
AC_PREREQ([2.59])
AC_INIT([sandbox], [1.2.16], [sandbox@gentoo.org])
AM_INIT_AUTOMAKE
AC_CONFIG_HEADER([config.h])
dnl Checks for programs.
AC_PROG_CC
AC_ISC_POSIX
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_PROG_AWK
AC_CHECK_PROGS([READELF], [readelf], [false])
AC_ENABLE_SHARED
AC_DISABLE_STATIC
dnl Next four lines is a hack to prevent libtool checking for CXX/F77
m4_undefine([AC_PROG_CXX])
m4_defun([AC_PROG_CXX],[])
m4_undefine([AC_PROG_F77])
m4_defun([AC_PROG_F77],[])
AC_PROG_LIBTOOL
AC_PREFIX_DEFAULT([/usr])
dnl Checks for libraries.
dnl Checks for header files.
AC_FUNC_ALLOCA
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([ \
fcntl.h limits.h memory.h stddef.h \
stdlib.h string.h strings.h sys/file.h \
sys/param.h sys/time.h unistd.h utime.h \
])
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_SIZE_T
AC_CHECK_TYPES([ptrdiff_t])
dnl Checks for library functions.
AC_FUNC_CHOWN
AC_FUNC_FORK
AC_FUNC_LSTAT
AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
AC_TYPE_SIGNAL
AC_FUNC_STAT
AC_CHECK_FUNCS([ \
bzero ftruncate getcwd lchown memmove \
mempcpy memset mkdir pathconf realpath \
rmdir setenv strcasecmp strchr strdup \
strerror strndup strrchr strspn strstr \
])
dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
AC_CHECK_LIB([dl], [dlopen],
[have_libdl="yes"],
[have_libdl="no"]
)
if test x"$have_libdl" = xyes ; then
LIBDL="-ldl"
AC_SUBST([LIBDL])
DL_LIB="dl"
else
DL_LIB="c"
AC_CHECK_LIB([c], [dlopen],
[],
[AC_MSG_ERROR([Unable to determine library providing dlopen])]
)
fi
dnl uClibc doesn't currently provide dlvsym() so lets
dnl verify the toolchain supports it
AC_CHECK_LIB([$DL_LIB], [dlvsym],
[AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
[AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
)
dnl when using libc5, (f)trucate's offset argument type is size_t with
dnl libc5, but it's off_t with libc6 (glibc2).
AC_MSG_CHECKING([truncate argument type])
TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
if test "$TRUNC_ARG_TYPE"x != x ; then
AC_MSG_RESULT([size_t])
AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
else
AC_MSG_RESULT([off_t])
AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
fi
dnl Check if we have glibc or clone
AC_MSG_CHECKING([for glibc])
AC_TRY_COMPILE([
#include <features.h>
], [
#if !defined(__GLIBC__)
# error no glibc
#endif
int main (void)
{
return 0;
}
],
[have_glibc="yes"],
[have_glibc="no"]
)
if test x"$have_glibc" = xyes ; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AM_CONDITIONAL([HAVE_GLIBC], [test x"$have_glibc" = xyes])
dnl we need to handle symbols differently based upon their version,
dnl but we have to know which symbols the libc supports first
AC_MSG_CHECKING([libc path])
echo "int main(void) { return 0; }" > libctest.c
$CC -Wall -o libctest libctest.c
LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \
$AWK '/attempt to open/ { if (($4 ~ /libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'`
rm -f libctest.c
if test "$LIBC_PATH"x = x || ! test -r "$LIBC_PATH"; then
AC_MSG_ERROR([Unable to determine LIBC PATH])
fi
AC_MSG_RESULT([$LIBC_PATH])
AC_SUBST([LIBC_PATH])
dnl when intercepting libc calls, we have to know the name of the
dnl libc to load and search with dl*() calls
AC_MSG_CHECKING([libc version])
dnl the sed script at the end here looks funny but it's ok ...
dnl they're m4 escape sequences for left and right brackets
LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
if test "$LIBC_VERSION"x = x ; then
AC_MSG_ERROR([Unable to determine LIBC VERSION])
fi
rm -f libctest
AC_MSG_RESULT([$LIBC_VERSION])
AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [name of libc to hook into])
dnl check if we have 32bit or 64bit output
AC_ARG_ENABLE([multilib],
AS_HELP_STRING([--enable-multilib],
[enable building for multilib setups (default=disabled)]),
[enable_multilib="$enableval"],
[enable_multilib="no"]
)
if test x"$enable_multilib" != xno ; then
AC_DEFINE_UNQUOTED([SB_HAVE_MULTILIB], [1], [have multilib enabled system])
fi
AC_OUTPUT([
Makefile
scripts/Makefile
data/Makefile
src/Makefile
])
|
GitWeb