| 1 |
AC_PREREQ(2.59) |
| 2 |
AC_INIT(sandbox, 1.2.11, dev-portage@gentoo.org) |
| 3 |
AM_INIT_AUTOMAKE |
| 4 |
AC_CONFIG_HEADER([config.h]) |
| 5 |
|
| 6 |
dnl 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 |
dnl Next four lines is a hack to prevent libtool checking for CXX/F77 |
| 16 |
m4_undefine([AC_PROG_CXX]) |
| 17 |
m4_defun([AC_PROG_CXX],[]) |
| 18 |
m4_undefine([AC_PROG_F77]) |
| 19 |
m4_defun([AC_PROG_F77],[]) |
| 20 |
AC_PROG_LIBTOOL |
| 21 |
|
| 22 |
AC_PREFIX_DEFAULT([/usr]) |
| 23 |
|
| 24 |
dnl Checks for libraries. |
| 25 |
dnl Checks for header files. |
| 26 |
AC_FUNC_ALLOCA |
| 27 |
AC_HEADER_DIRENT |
| 28 |
AC_HEADER_STDC |
| 29 |
AC_HEADER_SYS_WAIT |
| 30 |
AC_CHECK_HEADERS([ \ |
| 31 |
fcntl.h limits.h memory.h stddef.h \ |
| 32 |
stdlib.h string.h strings.h sys/file.h \ |
| 33 |
sys/param.h sys/time.h unistd.h utime.h \ |
| 34 |
]) |
| 35 |
|
| 36 |
dnl Checks for typedefs, structures, and compiler characteristics. |
| 37 |
AC_C_CONST |
| 38 |
AC_TYPE_UID_T |
| 39 |
AC_TYPE_MODE_T |
| 40 |
AC_TYPE_SIZE_T |
| 41 |
AC_CHECK_TYPES([ptrdiff_t]) |
| 42 |
|
| 43 |
dnl Checks for library functions. |
| 44 |
AC_FUNC_CHOWN |
| 45 |
AC_FUNC_FORK |
| 46 |
AC_FUNC_LSTAT |
| 47 |
AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK |
| 48 |
AC_FUNC_MALLOC |
| 49 |
AC_FUNC_REALLOC |
| 50 |
AC_TYPE_SIGNAL |
| 51 |
AC_FUNC_STAT |
| 52 |
AC_CHECK_FUNCS([ \ |
| 53 |
bzero ftruncate getcwd lchown memmove \ |
| 54 |
mempcpy memset mkdir pathconf realpath \ |
| 55 |
rmdir setenv strcasecmp strchr strdup \ |
| 56 |
strerror strndup strrchr strspn strstr \ |
| 57 |
]) |
| 58 |
|
| 59 |
dnl uClibc doesn't currently provide dlvsym() so lets |
| 60 |
dnl verify the toolchain supports it |
| 61 |
AC_CHECK_LIB(dl, dlvsym, |
| 62 |
[AC_DEFINE(HAVE_DLVSYM, 1, [libdl supports dlvsym])], |
| 63 |
[AC_DEFINE(HAVE_DLVSYM, 0, [libdl does not support dlvsym])] |
| 64 |
) |
| 65 |
|
| 66 |
dnl when using libc5, (f)trucate's offset argument type is size_t with |
| 67 |
dnl libc5, but it's off_t with libc6 (glibc2). |
| 68 |
AC_MSG_CHECKING(truncate argument type) |
| 69 |
if echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t' ; then |
| 70 |
AC_MSG_RESULT(size_t) |
| 71 |
AC_DEFINE(TRUNCATE_T, size_t, [truncate arg type]) |
| 72 |
else |
| 73 |
AC_MSG_RESULT(off_t) |
| 74 |
AC_DEFINE(TRUNCATE_T, off_t, [truncate arg type]) |
| 75 |
fi |
| 76 |
|
| 77 |
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 |
AC_MSG_CHECKING(libc path) |
| 80 |
echo "int main(void) { return 0; }" > libctest.c |
| 81 |
$CC -Wall -o libctest libctest.c |
| 82 |
LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \ |
| 83 |
$AWK '/attempt to open/ { if (($4 ~ /libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'` |
| 84 |
rm -f libctest.c |
| 85 |
if test "$LIBC_PATH"x = x ; then |
| 86 |
AC_MSG_ERROR(Unable to determine LIBC PATH) |
| 87 |
fi |
| 88 |
AC_MSG_RESULT($LIBC_PATH) |
| 89 |
AC_SUBST(LIBC_PATH) |
| 90 |
|
| 91 |
dnl when intercepting libc calls, we have to know the name of the |
| 92 |
dnl libc to load and search with dl*() calls |
| 93 |
AC_MSG_CHECKING(libc version) |
| 94 |
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 $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'` |
| 97 |
rm -f libctest |
| 98 |
if test "$LIBC_VERSION"x = x ; then |
| 99 |
AC_MSG_ERROR(Unable to determine LIBC VERSION) |
| 100 |
fi |
| 101 |
AC_MSG_RESULT($LIBC_VERSION) |
| 102 |
AC_DEFINE_UNQUOTED(LIBC_VERSION, "$LIBC_VERSION", [name of libc to hook into]) |
| 103 |
|
| 104 |
AC_OUTPUT([Makefile]) |
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