/[path-sandbox]/trunk/configure.ac
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Contents of /trunk/configure.ac

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Revision 215 - (hide annotations) (download)
Mon Dec 5 09:02:46 2005 UTC (8 years, 4 months ago) by azarah
File size: 3577 byte(s)
Make sure the aquired libc is readable.
1 azarah 180 AC_PREREQ([2.59])
2 azarah 209 AC_INIT([sandbox], [1.2.16], [sandbox@gentoo.org])
3 ferringb 2 AM_INIT_AUTOMAKE
4 ferringb 16 AC_CONFIG_HEADER([config.h])
5 ferringb 2
6 vapier 61 dnl Checks for programs.
7 ferringb 2 AC_PROG_CC
8 azarah 29 AC_ISC_POSIX
9     AC_PROG_INSTALL
10     AC_PROG_MAKE_SET
11     AC_PROG_AWK
12 azarah 183 AC_CHECK_PROGS([READELF], [readelf], [false])
13 azarah 29
14 vapier 21 AC_ENABLE_SHARED
15     AC_DISABLE_STATIC
16 vapier 61 dnl Next four lines is a hack to prevent libtool checking for CXX/F77
17 azarah 56 m4_undefine([AC_PROG_CXX])
18     m4_defun([AC_PROG_CXX],[])
19     m4_undefine([AC_PROG_F77])
20     m4_defun([AC_PROG_F77],[])
21 ferringb 2 AC_PROG_LIBTOOL
22    
23     AC_PREFIX_DEFAULT([/usr])
24 azarah 29
25 vapier 61 dnl Checks for libraries.
26     dnl Checks for header files.
27 ferringb 2 AC_FUNC_ALLOCA
28     AC_HEADER_DIRENT
29     AC_HEADER_STDC
30     AC_HEADER_SYS_WAIT
31 vapier 21 AC_CHECK_HEADERS([ \
32 azarah 180 fcntl.h limits.h memory.h stddef.h \
33     stdlib.h string.h strings.h sys/file.h \
34     sys/param.h sys/time.h unistd.h utime.h \
35 vapier 21 ])
36 ferringb 2
37 vapier 61 dnl Checks for typedefs, structures, and compiler characteristics.
38 ferringb 2 AC_C_CONST
39     AC_TYPE_UID_T
40     AC_TYPE_MODE_T
41     AC_TYPE_SIZE_T
42     AC_CHECK_TYPES([ptrdiff_t])
43    
44 vapier 61 dnl Checks for library functions.
45 ferringb 2 AC_FUNC_CHOWN
46     AC_FUNC_FORK
47     AC_FUNC_LSTAT
48     AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
49     AC_TYPE_SIGNAL
50     AC_FUNC_STAT
51 vapier 21 AC_CHECK_FUNCS([ \
52 azarah 180 bzero ftruncate getcwd lchown memmove \
53     mempcpy memset mkdir pathconf realpath \
54     rmdir setenv strcasecmp strchr strdup \
55     strerror strndup strrchr strspn strstr \
56 vapier 21 ])
57 ferringb 2
58 vapier 62 dnl uClibc doesn't currently provide dlvsym() so lets
59     dnl verify the toolchain supports it
60     AC_CHECK_LIB(dl, dlvsym,
61 azarah 180 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
62     [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
63 vapier 62 )
64    
65 vapier 23 dnl when using libc5, (f)trucate's offset argument type is size_t with
66     dnl libc5, but it's off_t with libc6 (glibc2).
67 azarah 180 AC_MSG_CHECKING([truncate argument type])
68     TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
69     if test "$TRUNC_ARG_TYPE"x != x ; then
70     AC_MSG_RESULT([size_t])
71     AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
72 vapier 23 else
73 azarah 180 AC_MSG_RESULT([off_t])
74     AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
75 vapier 23 fi
76    
77 vapier 53 dnl we need to handle symbols differently based upon their version,
78     dnl but we have to know which symbols the libc supports first
79 azarah 180 AC_MSG_CHECKING([libc path])
80 vapier 23 echo "int main(void) { return 0; }" > libctest.c
81 vapier 53 $CC -Wall -o libctest libctest.c
82     LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \
83 vapier 55 $AWK '/attempt to open/ { if (($4 ~ /libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'`
84 azarah 75 rm -f libctest.c
85 azarah 215 if test "$LIBC_PATH"x = x || ! test -r "$LIBC_PATH"; then
86 azarah 180 AC_MSG_ERROR([Unable to determine LIBC PATH])
87 vapier 53 fi
88 azarah 180 AC_MSG_RESULT([$LIBC_PATH])
89     AC_SUBST([LIBC_PATH])
90 vapier 23
91 vapier 53 dnl when intercepting libc calls, we have to know the name of the
92     dnl libc to load and search with dl*() calls
93 azarah 180 AC_MSG_CHECKING([libc version])
94 vapier 53 dnl the sed script at the end here looks funny but it's ok ...
95     dnl they're m4 escape sequences for left and right brackets
96     LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
97     if test "$LIBC_VERSION"x = x ; then
98 azarah 180 AC_MSG_ERROR([Unable to determine LIBC VERSION])
99 vapier 53 fi
100 azarah 181 rm -f libctest
101 azarah 180 AC_MSG_RESULT([$LIBC_VERSION])
102     AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [name of libc to hook into])
103 vapier 53
104 azarah 179 dnl check if we have 32bit or 64bit output
105 azarah 181 AC_ARG_ENABLE([multilib],
106     AS_HELP_STRING([--enable-multilib],
107     [enable building for multilib setups (default=disabled)]),
108     [enable_multilib="$enableval"],
109     [enable_multilib="no"]
110     )
111    
112     if test "$enable_multilib"x != xno ; then
113     AC_DEFINE_UNQUOTED([SB_HAVE_MULTILIB], [1], [have multilib enabled system])
114 azarah 179 fi
115    
116 azarah 183 AC_OUTPUT([
117     Makefile
118     scripts/Makefile
119     data/Makefile
120     src/Makefile
121     ])

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