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AC_PREREQ([2.59])
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AC_INIT([sandbox], [1.2.17], [sandbox@gentoo.org])
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AM_INIT_AUTOMAKE
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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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AC_PROG_AWK
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AC_CHECK_PROGS([READELF], [readelf eu-readelf], [false])
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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_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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memcpy 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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strtok_r \
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])
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dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
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AC_CHECK_LIB([dl], [dlopen],
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[have_libdl="yes"],
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[have_libdl="no"]
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)
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if test x"$have_libdl" = xyes ; then
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LIBDL="-ldl"
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AC_SUBST([LIBDL])
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DL_LIB="dl"
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else
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DL_LIB="c"
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AC_CHECK_LIB([c], [dlopen],
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[],
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[AC_MSG_ERROR([Unable to determine library providing dlopen])]
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)
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fi
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dnl uClibc doesn't currently provide dlvsym() so lets
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dnl verify the toolchain supports it
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AC_CHECK_LIB([$DL_LIB], [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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dnl when using libc5, (f)trucate's offset argument type is size_t with
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dnl libc5, but it's off_t with libc6 (glibc2).
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AC_MSG_CHECKING([truncate argument type])
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TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
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if test "$TRUNC_ARG_TYPE"x != x ; 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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dnl Check if libc provides RTLD_NEXT
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AC_MSG_CHECKING([for RTLD_NEXT])
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AC_TRY_COMPILE([
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#define _GNU_SOURCE
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#include <dlfcn.h>
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], [
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#if !defined(RTLD_NEXT)
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# error no RTLD_NEXT
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#endif
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],
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[have_rtld_next="yes"],
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[have_rtld_next="no"]
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)
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AC_MSG_RESULT([$have_rtld_next])
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if test x"$have_rtld_next" = xyes ; then
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AC_DEFINE([HAVE_RTLD_NEXT], [1], [Have RTLD_NEXT enabled libc])
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fi
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dnl we need to handle symbols differently based upon their version,
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dnl but we have to know which symbols the libc supports first
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AC_MSG_CHECKING([libc path])
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echo "int main(void) { return 0; }" > libctest.c
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LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \
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$AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'`
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rm -f libctest*
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if test "$LIBC_PATH"x = x || ! test -r "$LIBC_PATH"; then
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AC_MSG_ERROR([Unable to determine LIBC PATH])
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fi
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AC_MSG_RESULT([$LIBC_PATH])
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AC_SUBST([LIBC_PATH])
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dnl when intercepting libc calls, we have to know the name of the
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dnl libc to load and search with dl*() calls
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AC_MSG_CHECKING([libc version])
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dnl the sed script at the end here looks funny but it's ok ...
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dnl they're m4 escape sequences for left and right brackets
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echo "int main(void) { return 0; }" > libctest.c
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$CC -Wall -o libctest libctest.c
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LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
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rm -f libctest*
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if test "$LIBC_VERSION"x = x ; then
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AC_MSG_ERROR([Unable to determine LIBC VERSION])
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fi
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AC_MSG_RESULT([$LIBC_VERSION])
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AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [Name of libc to hook into])
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dnl check if we have 32bit or 64bit output
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AC_ARG_ENABLE([multilib],
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AS_HELP_STRING([--enable-multilib],
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[enable building for multilib setups (default=disabled)]),
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[enable_multilib="$enableval"],
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[enable_multilib="no"]
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)
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| 149 |
if test x"$enable_multilib" != xno ; then
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| 150 |
AC_DEFINE([SB_HAVE_MULTILIB], [1], [Have multilib enabled system])
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fi
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AC_OUTPUT([
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Makefile
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scripts/Makefile
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data/Makefile
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src/Makefile
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])
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Parent Directory
| 
Revision Log