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AC_PREREQ(2.59)
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| 2 |
AC_INIT(sandbox, 1.2.14, dev-portage@gentoo.org)
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| 3 |
AM_INIT_AUTOMAKE
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| 4 |
AC_CONFIG_HEADER([config.h])
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dnl Checks for programs.
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AC_PROG_CC
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AC_ISC_POSIX
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AC_PROG_INSTALL
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AC_PROG_MAKE_SET
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| 11 |
AC_PROG_AWK
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AC_ENABLE_SHARED
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AC_DISABLE_STATIC
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dnl Next four lines is a hack to prevent libtool checking for CXX/F77
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m4_undefine([AC_PROG_CXX])
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m4_defun([AC_PROG_CXX],[])
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m4_undefine([AC_PROG_F77])
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m4_defun([AC_PROG_F77],[])
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AC_PROG_LIBTOOL
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AC_PREFIX_DEFAULT([/usr])
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dnl Checks for libraries.
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dnl Checks for header files.
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AC_FUNC_ALLOCA
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AC_HEADER_DIRENT
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AC_HEADER_STDC
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AC_HEADER_SYS_WAIT
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AC_CHECK_HEADERS([ \
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fcntl.h limits.h memory.h stddef.h \
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stdlib.h string.h strings.h sys/file.h \
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sys/param.h sys/time.h unistd.h utime.h \
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])
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dnl Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_TYPE_UID_T
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AC_TYPE_MODE_T
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AC_TYPE_SIZE_T
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AC_CHECK_TYPES([ptrdiff_t])
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dnl Checks for library functions.
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AC_FUNC_CHOWN
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AC_FUNC_FORK
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AC_FUNC_LSTAT
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AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
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AC_FUNC_MALLOC
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AC_FUNC_REALLOC
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| 50 |
AC_TYPE_SIGNAL
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AC_FUNC_STAT
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AC_CHECK_FUNCS([ \
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bzero ftruncate getcwd lchown memmove \
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mempcpy memset mkdir pathconf realpath \
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rmdir setenv strcasecmp strchr strdup \
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strerror strndup strrchr strspn strstr \
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])
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| 59 |
dnl uClibc doesn't currently provide dlvsym() so lets
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dnl verify the toolchain supports it
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AC_CHECK_LIB(dl, dlvsym,
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[AC_DEFINE(HAVE_DLVSYM, 1, [libdl supports dlvsym])],
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[AC_DEFINE(HAVE_DLVSYM, 0, [libdl does not support dlvsym])]
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)
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| 66 |
dnl when using libc5, (f)trucate's offset argument type is size_t with
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| 67 |
dnl libc5, but it's off_t with libc6 (glibc2).
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| 68 |
AC_MSG_CHECKING(truncate argument type)
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if echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t' ; then
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AC_MSG_RESULT(size_t)
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AC_DEFINE(TRUNCATE_T, size_t, [truncate arg type])
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else
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AC_MSG_RESULT(off_t)
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AC_DEFINE(TRUNCATE_T, off_t, [truncate arg type])
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fi
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| 77 |
dnl we need to handle symbols differently based upon their version,
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| 78 |
dnl but we have to know which symbols the libc supports first
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| 79 |
AC_MSG_CHECKING(libc path)
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| 80 |
echo "int main(void) { return 0; }" > libctest.c
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| 81 |
$CC -Wall -o libctest libctest.c
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| 82 |
LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \
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| 83 |
$AWK '/attempt to open/ { if (($4 ~ /libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'`
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| 84 |
rm -f libctest.c
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| 85 |
if test "$LIBC_PATH"x = x ; then
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| 86 |
AC_MSG_ERROR(Unable to determine LIBC PATH)
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| 87 |
fi
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| 88 |
AC_MSG_RESULT($LIBC_PATH)
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| 89 |
AC_SUBST(LIBC_PATH)
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| 90 |
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| 91 |
dnl when intercepting libc calls, we have to know the name of the
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| 92 |
dnl libc to load and search with dl*() calls
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| 93 |
AC_MSG_CHECKING(libc version)
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| 94 |
dnl the sed script at the end here looks funny but it's ok ...
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| 95 |
dnl they're m4 escape sequences for left and right brackets
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| 96 |
LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
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| 97 |
rm -f libctest
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| 98 |
if test "$LIBC_VERSION"x = x ; then
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| 99 |
AC_MSG_ERROR(Unable to determine LIBC VERSION)
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| 100 |
fi
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| 101 |
AC_MSG_RESULT($LIBC_VERSION)
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| 102 |
AC_DEFINE_UNQUOTED(LIBC_VERSION, "$LIBC_VERSION", [name of libc to hook into])
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| 103 |
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| 104 |
AC_OUTPUT([Makefile])
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Parent Directory
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