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Revision 292 - (hide annotations) (download)
Fri Jul 7 14:20:49 2006 UTC (8 years ago) by azarah
File size: 5745 byte(s)
Release sandbox-1.2.20alpha1.

1 azarah 180 AC_PREREQ([2.59])
2 azarah 292 AC_INIT([sandbox], [1.2.20alpha1], [sandbox@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 azarah 236 AC_CHECK_PROGS([READELF], [readelf eu-readelf], [false])
13 azarah 29
14 vapier 21 AC_ENABLE_SHARED
15     AC_DISABLE_STATIC
16 vapier 61 dnl Next four lines is a hack to prevent libtool checking for CXX/F77
17 azarah 56 m4_undefine([AC_PROG_CXX])
18     m4_defun([AC_PROG_CXX],[])
19     m4_undefine([AC_PROG_F77])
20     m4_defun([AC_PROG_F77],[])
21 ferringb 2 AC_PROG_LIBTOOL
22    
23     AC_PREFIX_DEFAULT([/usr])
24 azarah 29
25 vapier 61 dnl Checks for libraries.
26     dnl Checks for header files.
27 ferringb 2 AC_FUNC_ALLOCA
28     AC_HEADER_DIRENT
29     AC_HEADER_STDC
30     AC_HEADER_SYS_WAIT
31 vapier 21 AC_CHECK_HEADERS([ \
32 azarah 234 fcntl.h limits.h memory.h stddef.h \
33     stdlib.h string.h strings.h sys/file.h \
34     sys/param.h sys/time.h unistd.h utime.h \
35 vapier 21 ])
36 ferringb 2
37 vapier 61 dnl Checks for typedefs, structures, and compiler characteristics.
38 ferringb 2 AC_C_CONST
39     AC_TYPE_UID_T
40     AC_TYPE_MODE_T
41     AC_TYPE_SIZE_T
42     AC_CHECK_TYPES([ptrdiff_t])
43    
44 vapier 61 dnl Checks for library functions.
45 ferringb 2 AC_FUNC_CHOWN
46     AC_FUNC_FORK
47     AC_FUNC_LSTAT
48     AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
49     AC_TYPE_SIGNAL
50     AC_FUNC_STAT
51 vapier 21 AC_CHECK_FUNCS([ \
52 azarah 234 bzero ftruncate getcwd lchown memmove \
53     memcpy memset mkdir pathconf realpath \
54     rmdir setenv strcasecmp strchr strdup \
55     strerror strndup strrchr strspn strstr \
56 azarah 235 strtok_r \
57 vapier 21 ])
58 azarah 278 dnl For librcutil
59     AC_CHECK_FUNCS([remove])
60 ferringb 2
61 azarah 278 dnl Check if gcc provides va_copy or __va_copy (for librcutil)
62     AC_MSG_CHECKING([for va_copy])
63     AC_TRY_COMPILE([
64     #include <stdarg.h>
65     ], [
66     va_list ap, aq;
67     va_copy(ap, aq);
68     ],
69     [va_copy="va_copy"],
70     [AC_TRY_COMPILE([
71     #include <stdarg.h>
72     ], [
73     va_list ap, aq;
74     __va_copy(ap, aq);
75     ],
76     [va_copy="__va_copy"],
77     [AC_MSG_ERROR([Unable to determine name of va_copy macro])]
78     )]
79     )
80     AC_MSG_RESULT([$va_copy])
81     if test x"$va_copy" != xva_copy ; then
82     AC_DEFINE_UNQUOTED([va_copy], [$va_copy],
83     [Define to name of va_copy macro proviced by gcc if its not `va_copy'.]
84     )
85     fi
86    
87 vapier 243 dnl Verify people aren't doing stupid shit
88     if test x"$enable_static" != xno ; then
89     AC_MSG_ERROR([dont be a Kumba, building a libsandbox.a is stupid])
90     fi
91     if test x"$enable_shared" != xyes ; then
92     AC_MSG_ERROR([dont be a Kumba, omitting a libsandbox.so is stupid])
93     fi
94     if echo $CFLAGS | $EGREP -e -static >/dev/null 2>&1; then
95     AC_MSG_ERROR([dont be a Kumba, using -static in CFLAGS is stupid])
96     fi
97     if echo $LDFLAGS | $EGREP -e -static >/dev/null 2>&1; then
98     AC_MSG_ERROR([dont be a Kumba, using -static in LDFLAGS is stupid])
99     fi
100    
101 azarah 218 dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
102     AC_CHECK_LIB([dl], [dlopen],
103 azarah 234 [have_libdl="yes"],
104     [have_libdl="no"]
105 azarah 218 )
106     if test x"$have_libdl" = xyes ; then
107 azarah 234 LIBDL="-ldl"
108     AC_SUBST([LIBDL])
109     DL_LIB="dl"
110 azarah 218 else
111 azarah 234 DL_LIB="c"
112     AC_CHECK_LIB([c], [dlopen],
113     [],
114     [AC_MSG_ERROR([Unable to determine library providing dlopen])]
115     )
116 azarah 218 fi
117    
118 vapier 62 dnl uClibc doesn't currently provide dlvsym() so lets
119     dnl verify the toolchain supports it
120 azarah 218 AC_CHECK_LIB([$DL_LIB], [dlvsym],
121 azarah 234 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
122     [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
123 vapier 62 )
124    
125 vapier 23 dnl when using libc5, (f)trucate's offset argument type is size_t with
126     dnl libc5, but it's off_t with libc6 (glibc2).
127 azarah 180 AC_MSG_CHECKING([truncate argument type])
128     TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
129     if test "$TRUNC_ARG_TYPE"x != x ; then
130 azarah 234 AC_MSG_RESULT([size_t])
131     AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
132 vapier 23 else
133 azarah 234 AC_MSG_RESULT([off_t])
134     AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
135 vapier 23 fi
136    
137 azarah 220 dnl Check if libc provides RTLD_NEXT
138     AC_MSG_CHECKING([for RTLD_NEXT])
139 azarah 216 AC_TRY_COMPILE([
140 azarah 234 #define _GNU_SOURCE
141     #include <dlfcn.h>
142     ], [
143     #if !defined(RTLD_NEXT)
144     # error no RTLD_NEXT
145     #endif
146     ],
147     [have_rtld_next="yes"],
148     [have_rtld_next="no"]
149 azarah 217 )
150 azarah 220 AC_MSG_RESULT([$have_rtld_next])
151 azarah 235 if test x"$have_rtld_next" = xyes ; then
152     AC_DEFINE([HAVE_RTLD_NEXT], [1], [Have RTLD_NEXT enabled libc])
153     fi
154 azarah 216
155 vapier 53 dnl we need to handle symbols differently based upon their version,
156     dnl but we have to know which symbols the libc supports first
157 azarah 180 AC_MSG_CHECKING([libc path])
158 vapier 23 echo "int main(void) { return 0; }" > libctest.c
159 vapier 238 $CC $CFLAGS -Wl,-verbose -o libctest libctest.c &> libctest.log
160     cat libctest.log 1>&AS_MESSAGE_LOG_FD
161     LIBC_PATH=`$AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}' libctest.log`
162 azarah 234 rm -f libctest*
163 vapier 239 if test x"$LIBC_PATH" = x || ! test -r "$LIBC_PATH" ; then
164 vapier 238 AC_MSG_ERROR([Unable to determine LIBC PATH ($LIBC_PATH)])
165 vapier 53 fi
166 azarah 180 AC_MSG_RESULT([$LIBC_PATH])
167     AC_SUBST([LIBC_PATH])
168 vapier 23
169 vapier 53 dnl when intercepting libc calls, we have to know the name of the
170     dnl libc to load and search with dl*() calls
171 azarah 180 AC_MSG_CHECKING([libc version])
172 vapier 53 dnl the sed script at the end here looks funny but it's ok ...
173     dnl they're m4 escape sequences for left and right brackets
174 azarah 234 echo "int main(void) { return 0; }" > libctest.c
175     $CC -Wall -o libctest libctest.c
176 vapier 256 LIBC_VERSION=`$READELF -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
177 azarah 234 rm -f libctest*
178 vapier 53 if test "$LIBC_VERSION"x = x ; then
179 azarah 234 AC_MSG_ERROR([Unable to determine LIBC VERSION])
180 vapier 53 fi
181 azarah 180 AC_MSG_RESULT([$LIBC_VERSION])
182 azarah 233 AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [Name of libc to hook into])
183 vapier 53
184 azarah 179 dnl check if we have 32bit or 64bit output
185 azarah 181 AC_ARG_ENABLE([multilib],
186 azarah 234 AS_HELP_STRING([--enable-multilib],
187     [enable building for multilib setups (default=disabled)]),
188     [enable_multilib="$enableval"],
189     [enable_multilib="no"]
190 azarah 181 )
191    
192 azarah 216 if test x"$enable_multilib" != xno ; then
193 azarah 234 AC_DEFINE([SB_HAVE_MULTILIB], [1], [Have multilib enabled system])
194 azarah 179 fi
195    
196 azarah 183 AC_OUTPUT([
197 azarah 234 Makefile
198     scripts/Makefile
199 azarah 286 etc/Makefile
200 azarah 234 data/Makefile
201 azarah 278 librcutil/Makefile
202 azarah 234 src/Makefile
203 azarah 183 ])

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