/[path-sandbox]/trunk/configure.ac
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trunk/configure.in Revision 44 trunk/configure.ac Revision 249
1AC_PREREQ(2.59) 1AC_PREREQ([2.59])
2AC_INIT(sandbox, 1.2.1, dev-portage@gentoo.org) 2AC_INIT([sandbox], [1.2.18], [sandbox@gentoo.org])
3AM_INIT_AUTOMAKE 3AM_INIT_AUTOMAKE
4AC_CONFIG_HEADER([config.h]) 4AC_CONFIG_HEADER([config.h])
5 5
6# Checks for programs. 6dnl Checks for programs.
7AC_PROG_CC 7AC_PROG_CC
8AC_ISC_POSIX 8AC_ISC_POSIX
9AC_PROG_INSTALL 9AC_PROG_INSTALL
10AC_PROG_MAKE_SET 10AC_PROG_MAKE_SET
11AC_PROG_AWK 11AC_PROG_AWK
12AC_CHECK_PROGS([READELF], [readelf eu-readelf], [false])
12 13
13AC_ENABLE_SHARED 14AC_ENABLE_SHARED
14AC_DISABLE_STATIC 15AC_DISABLE_STATIC
16dnl Next four lines is a hack to prevent libtool checking for CXX/F77
17m4_undefine([AC_PROG_CXX])
18m4_defun([AC_PROG_CXX],[])
19m4_undefine([AC_PROG_F77])
20m4_defun([AC_PROG_F77],[])
15AC_PROG_LIBTOOL 21AC_PROG_LIBTOOL
16 22
17AC_PREFIX_DEFAULT([/usr]) 23AC_PREFIX_DEFAULT([/usr])
18 24
19# Checks for libraries. 25dnl Checks for libraries.
20# Checks for header files. 26dnl Checks for header files.
21AC_FUNC_ALLOCA 27AC_FUNC_ALLOCA
22AC_HEADER_DIRENT 28AC_HEADER_DIRENT
23AC_HEADER_STDC 29AC_HEADER_STDC
24AC_HEADER_SYS_WAIT 30AC_HEADER_SYS_WAIT
25AC_CHECK_HEADERS([ \ 31AC_CHECK_HEADERS([ \
26fcntl.h limits.h memory.h stddef.h \ 32 fcntl.h limits.h memory.h stddef.h \
27stdlib.h string.h strings.h sys/file.h \ 33 stdlib.h string.h strings.h sys/file.h \
28sys/param.h sys/time.h unistd.h utime.h \ 34 sys/param.h sys/time.h unistd.h utime.h \
29]) 35])
30 36
31# Checks for typedefs, structures, and compiler characteristics. 37dnl Checks for typedefs, structures, and compiler characteristics.
32AC_C_CONST 38AC_C_CONST
33AC_TYPE_UID_T 39AC_TYPE_UID_T
34AC_TYPE_MODE_T 40AC_TYPE_MODE_T
35AC_TYPE_SIZE_T 41AC_TYPE_SIZE_T
36AC_CHECK_TYPES([ptrdiff_t]) 42AC_CHECK_TYPES([ptrdiff_t])
37 43
38# Checks for library functions. 44dnl Checks for library functions.
39AC_FUNC_CHOWN 45AC_FUNC_CHOWN
40AC_FUNC_FORK 46AC_FUNC_FORK
41AC_FUNC_LSTAT 47AC_FUNC_LSTAT
42AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK 48AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
43AC_FUNC_MALLOC
44AC_FUNC_REALLOC
45AC_TYPE_SIGNAL 49AC_TYPE_SIGNAL
46AC_FUNC_STAT 50AC_FUNC_STAT
47AC_CHECK_FUNCS([ \ 51AC_CHECK_FUNCS([ \
48bzero ftruncate getcwd lchown memmove \ 52 bzero ftruncate getcwd lchown memmove \
49mempcpy memset mkdir pathconf realpath \ 53 memcpy memset mkdir pathconf realpath \
50rmdir setenv strcasecmp strchr strdup \ 54 rmdir setenv strcasecmp strchr strdup \
51strerror strndup strrchr strspn strstr \ 55 strerror strndup strrchr strspn strstr \
56 strtok_r \
52]) 57])
53 58
54dnl 59dnl Verify people aren't doing stupid shit
55dnl FIXME: the following needs to be made portable 60if test x"$enable_static" != xno ; then
56dnl 61 AC_MSG_ERROR([dont be a Kumba, building a libsandbox.a is stupid])
62fi
63if test x"$enable_shared" != xyes ; then
64 AC_MSG_ERROR([dont be a Kumba, omitting a libsandbox.so is stupid])
65fi
66if echo $CFLAGS | $EGREP -e -static >/dev/null 2>&1; then
67 AC_MSG_ERROR([dont be a Kumba, using -static in CFLAGS is stupid])
68fi
69if echo $LDFLAGS | $EGREP -e -static >/dev/null 2>&1; then
70 AC_MSG_ERROR([dont be a Kumba, using -static in LDFLAGS is stupid])
71fi
72
73dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
74AC_CHECK_LIB([dl], [dlopen],
75 [have_libdl="yes"],
76 [have_libdl="no"]
77)
78if test x"$have_libdl" = xyes ; then
79 LIBDL="-ldl"
80 AC_SUBST([LIBDL])
81 DL_LIB="dl"
82else
83 DL_LIB="c"
84 AC_CHECK_LIB([c], [dlopen],
85 [],
86 [AC_MSG_ERROR([Unable to determine library providing dlopen])]
87 )
88fi
89
90dnl uClibc doesn't currently provide dlvsym() so lets
91dnl verify the toolchain supports it
92AC_CHECK_LIB([$DL_LIB], [dlvsym],
93 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
94 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
95)
57 96
58dnl when using libc5, (f)trucate's offset argument type is size_t with 97dnl when using libc5, (f)trucate's offset argument type is size_t with
59dnl libc5, but it's off_t with libc6 (glibc2). 98dnl libc5, but it's off_t with libc6 (glibc2).
60AC_MSG_CHECKING(truncate argument type) 99AC_MSG_CHECKING([truncate argument type])
61if grep -q 'truncate.*size_t' /usr/include/unistd.h ; then 100TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
101if test "$TRUNC_ARG_TYPE"x != x ; then
62 AC_MSG_RESULT(size_t) 102 AC_MSG_RESULT([size_t])
63 AC_DEFINE(TRUNCATE_T, size_t, [truncate arg type]) 103 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
64else 104else
65 AC_MSG_RESULT(off_t) 105 AC_MSG_RESULT([off_t])
66 AC_DEFINE(TRUNCATE_T, off_t, [truncate arg type]) 106 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
67fi 107fi
68 108
69AC_MSG_CHECKING(Checking libc version) 109dnl Check if libc provides RTLD_NEXT
110AC_MSG_CHECKING([for RTLD_NEXT])
111AC_TRY_COMPILE([
112 #define _GNU_SOURCE
113 #include <dlfcn.h>
114 ], [
115 #if !defined(RTLD_NEXT)
116 # error no RTLD_NEXT
117 #endif
118 ],
119 [have_rtld_next="yes"],
120 [have_rtld_next="no"]
121)
122AC_MSG_RESULT([$have_rtld_next])
123if test x"$have_rtld_next" = xyes ; then
124 AC_DEFINE([HAVE_RTLD_NEXT], [1], [Have RTLD_NEXT enabled libc])
125fi
126
127dnl we need to handle symbols differently based upon their version,
128dnl but we have to know which symbols the libc supports first
129AC_MSG_CHECKING([libc path])
70echo "int main(void) { return 0; }" > libctest.c 130echo "int main(void) { return 0; }" > libctest.c
71gcc -Wall -o libctest libctest.c 131$CC $CFLAGS -Wl,-verbose -o libctest libctest.c &> libctest.log
72LIBC_VERSION=`ldd libctest | grep libc\\.so | grep -v 'ld-uClibc' | ${AWK} '{print $1}'` 132cat libctest.log 1>&AS_MESSAGE_LOG_FD
73LIBC_PATH=`ldd libctest | grep libc\\.so | grep -v 'ld-uClibc' | ${AWK} '{print $3}'` 133LIBC_PATH=`$AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}' libctest.log`
74rm -f libctest 134rm -f libctest*
75AC_SUBST(LIBC_VERSION) 135if test x"$LIBC_PATH" = x || ! test -r "$LIBC_PATH" ; then
136 AC_MSG_ERROR([Unable to determine LIBC PATH ($LIBC_PATH)])
137fi
138AC_MSG_RESULT([$LIBC_PATH])
76AC_SUBST(LIBC_PATH) 139AC_SUBST([LIBC_PATH])
77AC_MSG_RESULT(${LIBC_VERSION})
78 140
79AC_OUTPUT([Makefile]) 141dnl when intercepting libc calls, we have to know the name of the
142dnl libc to load and search with dl*() calls
143AC_MSG_CHECKING([libc version])
144dnl the sed script at the end here looks funny but it's ok ...
145dnl they're m4 escape sequences for left and right brackets
146echo "int main(void) { return 0; }" > libctest.c
147$CC -Wall -o libctest libctest.c
148LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
149rm -f libctest*
150if test "$LIBC_VERSION"x = x ; then
151 AC_MSG_ERROR([Unable to determine LIBC VERSION])
152fi
153AC_MSG_RESULT([$LIBC_VERSION])
154AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [Name of libc to hook into])
155
156dnl check if we have 32bit or 64bit output
157AC_ARG_ENABLE([multilib],
158 AS_HELP_STRING([--enable-multilib],
159 [enable building for multilib setups (default=disabled)]),
160 [enable_multilib="$enableval"],
161 [enable_multilib="no"]
162)
163
164if test x"$enable_multilib" != xno ; then
165 AC_DEFINE([SB_HAVE_MULTILIB], [1], [Have multilib enabled system])
166fi
167
168AC_OUTPUT([
169 Makefile
170 scripts/Makefile
171 data/Makefile
172 src/Makefile
173])

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