/[path-sandbox]/trunk/configure.ac
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Revision 232 Revision 429
1AC_PREREQ([2.59]) 1AC_PREREQ([2.61])
2AC_INIT([sandbox], [1.2.17], [sandbox@gentoo.org]) 2AC_INIT([sandbox], [1.3.1], [sandbox@gentoo.org])
3sb_configure_opts="$*"
3AM_INIT_AUTOMAKE 4AM_INIT_AUTOMAKE
4AC_CONFIG_HEADER([config.h]) 5AC_CONFIG_HEADER([config.h])
5 6
7AC_DEFINE_UNQUOTED([SANDBOX_CONFIGURE_OPTS], ["${sb_configure_opts}"], [Arguments given to ./configure])
8
6dnl Checks for programs. 9dnl Checks for programs.
7AC_PROG_CC 10AC_PROG_CC
11AM_PROG_CC_C_O
8AC_ISC_POSIX 12AC_ISC_POSIX
9AC_PROG_INSTALL 13AC_PROG_INSTALL
10AC_PROG_MAKE_SET 14AC_PROG_MAKE_SET
11AC_PROG_AWK 15AC_PROG_AWK
12AC_CHECK_PROGS([READELF], [readelf], [false]) 16AC_CHECK_PROGS([READELF], [readelf eu-readelf], [false])
17AM_MISSING_PROG([AUTOM4TE], [autom4te])
13 18
14AC_ENABLE_SHARED 19AC_ENABLE_SHARED
15AC_DISABLE_STATIC 20AC_DISABLE_STATIC
16dnl Next four lines is a hack to prevent libtool checking for CXX/F77 21dnl Next four lines is a hack to prevent libtool checking for CXX/F77
17m4_undefine([AC_PROG_CXX]) 22m4_undefine([AC_PROG_CXX])
26dnl Checks for header files. 31dnl Checks for header files.
27AC_FUNC_ALLOCA 32AC_FUNC_ALLOCA
28AC_HEADER_DIRENT 33AC_HEADER_DIRENT
29AC_HEADER_STDC 34AC_HEADER_STDC
30AC_HEADER_SYS_WAIT 35AC_HEADER_SYS_WAIT
31AC_CHECK_HEADERS([ \ 36AC_CHECK_HEADERS_ONCE([ \
32 fcntl.h limits.h memory.h stddef.h \ 37 dirent.h \
33 stdlib.h string.h strings.h sys/file.h \ 38 dlfcn.h \
34 sys/param.h sys/time.h unistd.h utime.h \ 39 elf.h \
40 errno.h \
41 execinfo.h \
42 fcntl.h \
43 libgen.h \
44 limits.h \
45 memory.h \
46 signal.h \
47 stdarg.h \
48 stdbool.h \
49 stddef.h \
50 stdio.h \
51 stdlib.h \
52 string.h \
53 strings.h \
54 syscall.h \
55 unistd.h \
56 utime.h \
57 sys/file.h \
58 sys/mman.h \
59 sys/param.h \
60 sys/stat.h \
61 sys/time.h \
62 sys/types.h \
63 sys/wait.h \
35]) 64])
36 65
37dnl Checks for typedefs, structures, and compiler characteristics. 66dnl Checks for typedefs, structures, and compiler characteristics.
38AC_C_CONST 67AC_C_CONST
39AC_TYPE_UID_T 68AC_TYPE_UID_T
46AC_FUNC_FORK 75AC_FUNC_FORK
47AC_FUNC_LSTAT 76AC_FUNC_LSTAT
48AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK 77AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
49AC_TYPE_SIGNAL 78AC_TYPE_SIGNAL
50AC_FUNC_STAT 79AC_FUNC_STAT
51AC_CHECK_FUNCS([ \ 80AC_CHECK_FUNCS_ONCE([ \
52 bzero ftruncate getcwd lchown memmove \ 81 backtrace \
53 memcpy memset mkdir pathconf realpath \ 82 ftruncate \
54 rmdir setenv strcasecmp strchr strdup \ 83 getcwd \
55 strerror strndup strrchr strspn strstr \ 84 lchown \
85 memmove \
86 memcpy \
87 memset \
88 mkdir \
89 pathconf \
90 realpath \
91 rmdir \
92 setenv \
93 strcasecmp \
94 strchr \
95 strdup \
96 strerror \
97 strndup \
98 strrchr \
99 strspn \
100 strstr \
101 strtok_r \
56]) 102])
103dnl For librcutil
104AC_CHECK_FUNCS([remove])
105
106dnl Check if gcc provides va_copy or __va_copy (for librcutil)
107AC_MSG_CHECKING([for va_copy])
108AC_TRY_COMPILE([
109 #include <stdarg.h>
110 ], [
111 va_list ap, aq;
112 va_copy(ap, aq);
113 ],
114 [va_copy="va_copy"],
115 [AC_TRY_COMPILE([
116 #include <stdarg.h>
117 ], [
118 va_list ap, aq;
119 __va_copy(ap, aq);
120 ],
121 [va_copy="__va_copy"],
122 [AC_MSG_ERROR([Unable to determine name of va_copy macro])]
123 )]
124)
125AC_MSG_RESULT([$va_copy])
126if test x"$va_copy" != xva_copy ; then
127 AC_DEFINE_UNQUOTED([va_copy], [$va_copy],
128 [Define to name of va_copy macro proviced by gcc if its not `va_copy'.]
129 )
130fi
131
132dnl Verify people aren't doing stupid shit
133if test x"$enable_static" != xno ; then
134 AC_MSG_ERROR([dont be a Kumba, building a libsandbox.a is stupid])
135fi
136if test x"$enable_shared" != xyes ; then
137 AC_MSG_ERROR([dont be a Kumba, omitting a libsandbox.so is stupid])
138fi
139if echo $CFLAGS | $EGREP -e -static >/dev/null 2>&1; then
140 AC_MSG_ERROR([dont be a Kumba, using -static in CFLAGS is stupid])
141fi
142if echo $LDFLAGS | $EGREP -e -static >/dev/null 2>&1; then
143 AC_MSG_ERROR([dont be a Kumba, using -static in LDFLAGS is stupid])
144fi
57 145
58dnl Some libc's like those on bsd have dlopen() in libc, and not libdl 146dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
59AC_CHECK_LIB([dl], [dlopen], 147AC_CHECK_LIB([dl], [dlopen],
60 [have_libdl="yes"], 148 [have_libdl="yes"],
61 [have_libdl="no"] 149 [have_libdl="no"]
62) 150)
63if test x"$have_libdl" = xyes ; then 151if test x"$have_libdl" = xyes ; then
64 LIBDL="-ldl" 152 LIBDL="-ldl"
65 AC_SUBST([LIBDL]) 153 AC_SUBST([LIBDL])
66 DL_LIB="dl" 154 DL_LIB="dl"
67else 155else
68 DL_LIB="c" 156 DL_LIB="c"
69 AC_CHECK_LIB([c], [dlopen], 157 AC_CHECK_LIB([c], [dlopen],
70 [], 158 [],
71 [AC_MSG_ERROR([Unable to determine library providing dlopen])] 159 [AC_MSG_ERROR([Unable to determine library providing dlopen])]
72 ) 160 )
73fi 161fi
74 162
75dnl uClibc doesn't currently provide dlvsym() so lets 163dnl uClibc doesn't currently provide dlvsym() so lets
76dnl verify the toolchain supports it 164dnl verify the toolchain supports it
77AC_CHECK_LIB([$DL_LIB], [dlvsym], 165AC_CHECK_LIB([$DL_LIB], [dlvsym],
78 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])], 166 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
79 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])] 167 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
80) 168)
81 169
82dnl when using libc5, (f)trucate's offset argument type is size_t with 170dnl when using libc5, (f)trucate's offset argument type is size_t with
83dnl libc5, but it's off_t with libc6 (glibc2). 171dnl libc5, but it's off_t with libc6 (glibc2).
84AC_MSG_CHECKING([truncate argument type]) 172AC_MSG_CHECKING([truncate argument type])
85TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'` 173TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
86if test "$TRUNC_ARG_TYPE"x != x ; then 174if test "$TRUNC_ARG_TYPE"x != x ; then
87 AC_MSG_RESULT([size_t]) 175 AC_MSG_RESULT([size_t])
88 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type]) 176 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
89else 177else
90 AC_MSG_RESULT([off_t]) 178 AC_MSG_RESULT([off_t])
91 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type]) 179 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
92fi 180fi
93 181
94dnl Check if libc provides RTLD_NEXT 182dnl Check if libc provides RTLD_NEXT
95AC_MSG_CHECKING([for RTLD_NEXT]) 183AC_MSG_CHECKING([for RTLD_NEXT])
96AC_TRY_COMPILE([ 184AC_TRY_COMPILE([
97#define _GNU_SOURCE 185 #define _GNU_SOURCE
98#include <dlfcn.h> 186 #include <dlfcn.h>
99], [ 187 ], [
100#if !defined(RTLD_NEXT) 188 #if !defined(RTLD_NEXT)
101# error no RTLD_NEXT 189 # error no RTLD_NEXT
102#endif 190 #endif
103 191 ],
104int
105main (void)
106{
107 return 0;
108}
109],
110 [have_rtld_next="yes"], 192 [have_rtld_next="yes"],
111 [have_rtld_next="no"] 193 [have_rtld_next="no"]
112) 194)
113AC_MSG_RESULT([$have_rtld_next]) 195AC_MSG_RESULT([$have_rtld_next])
114AM_CONDITIONAL([HAVE_RTLD_NEXT], [test x"$have_rtld_next" = xyes]) 196if test x"$have_rtld_next" = xyes ; then
197 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
198 AC_DEFINE([HAVE_RTLD_NEXT], [1], [Have RTLD_NEXT enabled libc])
199fi
115 200
116dnl we need to handle symbols differently based upon their version, 201dnl we need to handle symbols differently based upon their version,
117dnl but we have to know which symbols the libc supports first 202dnl but we have to know which symbols the libc supports first
118AC_MSG_CHECKING([libc path]) 203AC_MSG_CHECKING([libc path])
119echo "int main(void) { return 0; }" > libctest.c 204echo "int main(void) { return 0; }" > libctest.c
120$CC -Wall -o libctest libctest.c 205$CC $CFLAGS $CPPFLAGS $LDFLAGS -Wl,-verbose -o libctest libctest.c > libctest.log 2>&1
121LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \ 206cat libctest.log 1>&AS_MESSAGE_LOG_FD
207LIBC_PATH=$(
122 $AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'` 208 $AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}' libctest.log
209)
123rm -f libctest.c 210rm -f libctest*
124if test "$LIBC_PATH"x = x || ! test -r "$LIBC_PATH"; then 211if test x"$LIBC_PATH" = x || ! test -r "$LIBC_PATH" ; then
125 AC_MSG_ERROR([Unable to determine LIBC PATH]) 212 AC_MSG_ERROR([Unable to determine LIBC PATH ($LIBC_PATH)])
126fi 213fi
127AC_MSG_RESULT([$LIBC_PATH]) 214AC_MSG_RESULT([$LIBC_PATH])
128AC_SUBST([LIBC_PATH]) 215AC_SUBST([LIBC_PATH])
129 216
130dnl when intercepting libc calls, we have to know the name of the 217dnl when intercepting libc calls, we have to know the name of the
131dnl libc to load and search with dl*() calls 218dnl libc to load and search with dl*() calls
132AC_MSG_CHECKING([libc version]) 219AC_MSG_CHECKING([libc version])
133dnl the sed script at the end here looks funny but it's ok ... 220dnl the sed script at the end here looks funny but it's ok ...
134dnl they're m4 escape sequences for left and right brackets 221echo "int main(void) { return 0; }" > libctest.c
135LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'` 222$CC $CFLAGS $CPPFLAGS $LDFLAGS -Wall -o libctest libctest.c
223LIBC_VERSION=$(
224 $READELF -d libctest | \
225 grep NEEDED.*libc\\.so | \
226 $AWK '{print $NF}' | sed -e ['s:\[::' -e 's:\]::']
227)
228rm -f libctest*
136if test "$LIBC_VERSION"x = x ; then 229if test "$LIBC_VERSION"x = x ; then
137 AC_MSG_ERROR([Unable to determine LIBC VERSION]) 230 AC_MSG_ERROR([Unable to determine LIBC VERSION])
138fi 231fi
139rm -f libctest
140AC_MSG_RESULT([$LIBC_VERSION]) 232AC_MSG_RESULT([$LIBC_VERSION])
141AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [name of libc to hook into]) 233AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [Name of libc to hook into])
142 234
143dnl check if we have 32bit or 64bit output 235dnl We add to CPPFLAGS rather than doing AC_DEFINE_UNQUOTED
144AC_ARG_ENABLE([multilib], 236dnl so we dont have to worry about fully expanding all of
145 AS_HELP_STRING([--enable-multilib], 237dnl the variables ($sysconfdir defaults to "$prefix/etc")
146 [enable building for multilib setups (default=disabled)]), 238SANDBOX_DEFINES='-DETCDIR="\"$(sysconfdir)\"" -DLIBSANDBOX_PATH="\"$(libdir)\"" -DSANDBOX_BASHRC_PATH="\"$(pkgdatadir)\""'
147 [enable_multilib="$enableval"], 239AC_SUBST([SANDBOX_DEFINES])
148 [enable_multilib="no"]
149)
150 240
151if test x"$enable_multilib" != xno ; then 241CPPFLAGS="$CPPFLAGS -D_REENTRANT"
152 AC_DEFINE_UNQUOTED([SB_HAVE_MULTILIB], [1], [have multilib enabled system]) 242if test "$GCC" = yes; then
243 CFLAGS="$CFLAGS -Wall"
153fi 244fi
245
246AC_CONFIG_TESTDIR([tests])
154 247
155AC_OUTPUT([ 248AC_OUTPUT([
156 Makefile 249 Makefile
157 scripts/Makefile 250 scripts/Makefile
251 etc/Makefile
158 data/Makefile 252 data/Makefile
253 libsbutil/Makefile
254 libsandbox/Makefile
159 src/Makefile 255 src/Makefile
256 tests/atlocal
257 tests/Makefile
258 tests/package.m4
160]) 259])

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