path-sandbox/trunk/configure.ac

AC_PREREQ(2.59)
AC_INIT(sandbox, 1.2.14, dev-portage@gentoo.org)
AM_INIT_AUTOMAKE
AC_CONFIG_HEADER([config.h])

dnl Checks for programs.
AC_PROG_CC
AC_ISC_POSIX
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_PROG_AWK

AC_ENABLE_SHARED
AC_DISABLE_STATIC
dnl Next four lines is a hack to prevent libtool checking for CXX/F77
m4_undefine([AC_PROG_CXX])
m4_defun([AC_PROG_CXX],[])
m4_undefine([AC_PROG_F77])
m4_defun([AC_PROG_F77],[])
AC_PROG_LIBTOOL

AC_PREFIX_DEFAULT([/usr])

dnl Checks for libraries.
dnl Checks for header files.
AC_FUNC_ALLOCA
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([ \
fcntl.h limits.h memory.h stddef.h \
stdlib.h string.h strings.h sys/file.h \
sys/param.h sys/time.h unistd.h utime.h \
])

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_SIZE_T
AC_CHECK_TYPES([ptrdiff_t])

dnl Checks for library functions.
AC_FUNC_CHOWN
AC_FUNC_FORK
AC_FUNC_LSTAT
AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_TYPE_SIGNAL
AC_FUNC_STAT
AC_CHECK_FUNCS([ \
bzero ftruncate getcwd lchown memmove \
mempcpy memset mkdir pathconf realpath \
rmdir setenv strcasecmp strchr strdup \
strerror strndup strrchr strspn strstr \
])

dnl uClibc doesn't currently provide dlvsym() so lets
dnl verify the toolchain supports it
AC_CHECK_LIB(dl, dlvsym,
        [AC_DEFINE(HAVE_DLVSYM, 1, [libdl supports dlvsym])],
        [AC_DEFINE(HAVE_DLVSYM, 0, [libdl does not support dlvsym])]
)

dnl when using libc5, (f)trucate's offset argument type is size_t with
dnl libc5, but it's off_t with libc6 (glibc2).
AC_MSG_CHECKING(truncate argument type)
if echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t' ; then
        AC_MSG_RESULT(size_t)
        AC_DEFINE(TRUNCATE_T, size_t, [truncate arg type])
else
        AC_MSG_RESULT(off_t)
        AC_DEFINE(TRUNCATE_T, off_t, [truncate arg type])
fi

dnl we need to handle symbols differently based upon their version, 
dnl but we have to know which symbols the libc supports first
AC_MSG_CHECKING(libc path)
echo "int main(void) { return 0; }" > libctest.c
$CC -Wall -o libctest libctest.c
LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \
        $AWK '/attempt to open/ { if (($4 ~ /libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'`
rm -f libctest.c
if test "$LIBC_PATH"x = x ; then
        AC_MSG_ERROR(Unable to determine LIBC PATH)
fi
AC_MSG_RESULT($LIBC_PATH)
AC_SUBST(LIBC_PATH)

dnl when intercepting libc calls, we have to know the name of the 
dnl libc to load and search with dl*() calls
AC_MSG_CHECKING(libc version)
dnl the sed script at the end here looks funny but it's ok ...
dnl they're m4 escape sequences for left and right brackets
LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
rm -f libctest
if test "$LIBC_VERSION"x = x ; then
        AC_MSG_ERROR(Unable to determine LIBC VERSION)
fi
AC_MSG_RESULT($LIBC_VERSION)
AC_DEFINE_UNQUOTED(LIBC_VERSION, "$LIBC_VERSION", [name of libc to hook into])

AC_OUTPUT([Makefile])
1	ferringb	2	AC_PREREQ(2.59)
2	azarah	176	AC_INIT(sandbox, 1.2.14, dev-portage@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
13	vapier	21	AC_ENABLE_SHARED
14			AC_DISABLE_STATIC
15	vapier	61	dnl Next four lines is a hack to prevent libtool checking for CXX/F77
16	azarah	56	m4_undefine([AC_PROG_CXX])
17			m4_defun([AC_PROG_CXX],[])
18			m4_undefine([AC_PROG_F77])
19			m4_defun([AC_PROG_F77],[])
20	ferringb	2	AC_PROG_LIBTOOL
21
22			AC_PREFIX_DEFAULT([/usr])
23	azarah	29
24	vapier	61	dnl Checks for libraries.
25			dnl Checks for header files.
26	ferringb	2	AC_FUNC_ALLOCA
27			AC_HEADER_DIRENT
28			AC_HEADER_STDC
29			AC_HEADER_SYS_WAIT
30	vapier	21	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	ferringb	2
36	vapier	61	dnl Checks for typedefs, structures, and compiler characteristics.
37	ferringb	2	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	vapier	61	dnl Checks for library functions.
44	ferringb	2	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	vapier	21	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	ferringb	2
59	vapier	62	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	vapier	23	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	vapier	53	if echo '#include <unistd.h>' \| $CC -E - \| grep -q 'truncate.*size_t' ; then
70	vapier	23	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	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			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 = $4; }; END {print LIBC}'`
84	azarah	75	rm -f libctest.c
85	vapier	53	if test "$LIBC_PATH"x = x ; then
86			AC_MSG_ERROR(Unable to determine LIBC PATH)
87			fi
88			AC_MSG_RESULT($LIBC_PATH)
89	ferringb	33	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			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 $NF}' \| sed -e 's:\@<:@::' -e 's:\@:>@::'`
97	azarah	75	rm -f libctest
98	vapier	53	if test "$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	vapier	21	AC_OUTPUT([Makefile])
Name	Value
svn:eol-style	native
svn:keywords	Author Date Id Revision