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Contents of /trunk/configure.ac

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Revision 53 - (show annotations) (download)
Thu Apr 28 22:21:10 2005 UTC (9 years, 3 months ago) by vapier
Original Path: trunk/configure.in
File MIME type: text/plain
File size: 2598 byte(s)
fix cross-compiling and uclibc and all that jazz

1 AC_PREREQ(2.59)
2 AC_INIT(sandbox, 1.2.2, dev-portage@gentoo.org)
3 AM_INIT_AUTOMAKE
4 AC_CONFIG_HEADER([config.h])
5
6 # Checks for programs.
7 AC_PROG_CC
8 AC_ISC_POSIX
9 AC_PROG_INSTALL
10 AC_PROG_MAKE_SET
11 AC_PROG_AWK
12
13 AC_ENABLE_SHARED
14 AC_DISABLE_STATIC
15 AC_PROG_LIBTOOL
16
17 AC_PREFIX_DEFAULT([/usr])
18
19 # Checks for libraries.
20 # Checks for header files.
21 AC_FUNC_ALLOCA
22 AC_HEADER_DIRENT
23 AC_HEADER_STDC
24 AC_HEADER_SYS_WAIT
25 AC_CHECK_HEADERS([ \
26 fcntl.h limits.h memory.h stddef.h \
27 stdlib.h string.h strings.h sys/file.h \
28 sys/param.h sys/time.h unistd.h utime.h \
29 ])
30
31 # Checks for typedefs, structures, and compiler characteristics.
32 AC_C_CONST
33 AC_TYPE_UID_T
34 AC_TYPE_MODE_T
35 AC_TYPE_SIZE_T
36 AC_CHECK_TYPES([ptrdiff_t])
37
38 # Checks for library functions.
39 AC_FUNC_CHOWN
40 AC_FUNC_FORK
41 AC_FUNC_LSTAT
42 AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
43 AC_FUNC_MALLOC
44 AC_FUNC_REALLOC
45 AC_TYPE_SIGNAL
46 AC_FUNC_STAT
47 AC_CHECK_FUNCS([ \
48 bzero ftruncate getcwd lchown memmove \
49 mempcpy memset mkdir pathconf realpath \
50 rmdir setenv strcasecmp strchr strdup \
51 strerror strndup strrchr strspn strstr \
52 ])
53
54 dnl when using libc5, (f)trucate's offset argument type is size_t with
55 dnl libc5, but it's off_t with libc6 (glibc2).
56 AC_MSG_CHECKING(truncate argument type)
57 if echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t' ; then
58 AC_MSG_RESULT(size_t)
59 AC_DEFINE(TRUNCATE_T, size_t, [truncate arg type])
60 else
61 AC_MSG_RESULT(off_t)
62 AC_DEFINE(TRUNCATE_T, off_t, [truncate arg type])
63 fi
64
65 dnl we need to handle symbols differently based upon their version,
66 dnl but we have to know which symbols the libc supports first
67 AC_MSG_CHECKING(libc path)
68 echo "int main(void) { return 0; }" > libctest.c
69 $CC -Wall -o libctest libctest.c
70 LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \
71 gawk '/attempt to open/ { if (($4 ~ /libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'`
72 if test "$LIBC_PATH"x = x ; then
73 AC_MSG_ERROR(Unable to determine LIBC PATH)
74 fi
75 AC_MSG_RESULT($LIBC_PATH)
76 AC_SUBST(LIBC_PATH)
77
78 dnl when intercepting libc calls, we have to know the name of the
79 dnl libc to load and search with dl*() calls
80 AC_MSG_CHECKING(libc version)
81 dnl the sed script at the end here looks funny but it's ok ...
82 dnl they're m4 escape sequences for left and right brackets
83 LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
84 if test "$LIBC_VERSION"x = x ; then
85 AC_MSG_ERROR(Unable to determine LIBC VERSION)
86 fi
87 AC_MSG_RESULT($LIBC_VERSION)
88 AC_DEFINE_UNQUOTED(LIBC_VERSION, "$LIBC_VERSION", [name of libc to hook into])
89 rm -f libctest
90
91 AC_OUTPUT([Makefile])

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