/[path-sandbox]/trunk/configure.ac
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Revision 232 Revision 428
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])
3AM_INIT_AUTOMAKE 3AM_INIT_AUTOMAKE
4AC_CONFIG_HEADER([config.h]) 4AC_CONFIG_HEADER([config.h])
5 5
6dnl Checks for programs. 6dnl Checks for programs.
7AC_PROG_CC 7AC_PROG_CC
8AM_PROG_CC_C_O
8AC_ISC_POSIX 9AC_ISC_POSIX
9AC_PROG_INSTALL 10AC_PROG_INSTALL
10AC_PROG_MAKE_SET 11AC_PROG_MAKE_SET
11AC_PROG_AWK 12AC_PROG_AWK
12AC_CHECK_PROGS([READELF], [readelf], [false]) 13AC_CHECK_PROGS([READELF], [readelf eu-readelf], [false])
14AM_MISSING_PROG([AUTOM4TE], [autom4te])
13 15
14AC_ENABLE_SHARED 16AC_ENABLE_SHARED
15AC_DISABLE_STATIC 17AC_DISABLE_STATIC
16dnl Next four lines is a hack to prevent libtool checking for CXX/F77 18dnl Next four lines is a hack to prevent libtool checking for CXX/F77
17m4_undefine([AC_PROG_CXX]) 19m4_undefine([AC_PROG_CXX])
26dnl Checks for header files. 28dnl Checks for header files.
27AC_FUNC_ALLOCA 29AC_FUNC_ALLOCA
28AC_HEADER_DIRENT 30AC_HEADER_DIRENT
29AC_HEADER_STDC 31AC_HEADER_STDC
30AC_HEADER_SYS_WAIT 32AC_HEADER_SYS_WAIT
31AC_CHECK_HEADERS([ \ 33AC_CHECK_HEADERS_ONCE([ \
32 fcntl.h limits.h memory.h stddef.h \ 34 dirent.h \
33 stdlib.h string.h strings.h sys/file.h \ 35 dlfcn.h \
34 sys/param.h sys/time.h unistd.h utime.h \ 36 elf.h \
37 errno.h \
38 execinfo.h \
39 fcntl.h \
40 libgen.h \
41 limits.h \
42 memory.h \
43 signal.h \
44 stdarg.h \
45 stdbool.h \
46 stddef.h \
47 stdio.h \
48 stdlib.h \
49 string.h \
50 strings.h \
51 syscall.h \
52 unistd.h \
53 utime.h \
54 sys/file.h \
55 sys/mman.h \
56 sys/param.h \
57 sys/stat.h \
58 sys/time.h \
59 sys/types.h \
60 sys/wait.h \
35]) 61])
36 62
37dnl Checks for typedefs, structures, and compiler characteristics. 63dnl Checks for typedefs, structures, and compiler characteristics.
38AC_C_CONST 64AC_C_CONST
39AC_TYPE_UID_T 65AC_TYPE_UID_T
46AC_FUNC_FORK 72AC_FUNC_FORK
47AC_FUNC_LSTAT 73AC_FUNC_LSTAT
48AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK 74AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
49AC_TYPE_SIGNAL 75AC_TYPE_SIGNAL
50AC_FUNC_STAT 76AC_FUNC_STAT
51AC_CHECK_FUNCS([ \ 77AC_CHECK_FUNCS_ONCE([ \
52 bzero ftruncate getcwd lchown memmove \ 78 backtrace \
53 memcpy memset mkdir pathconf realpath \ 79 ftruncate \
54 rmdir setenv strcasecmp strchr strdup \ 80 getcwd \
55 strerror strndup strrchr strspn strstr \ 81 lchown \
82 memmove \
83 memcpy \
84 memset \
85 mkdir \
86 pathconf \
87 realpath \
88 rmdir \
89 setenv \
90 strcasecmp \
91 strchr \
92 strdup \
93 strerror \
94 strndup \
95 strrchr \
96 strspn \
97 strstr \
98 strtok_r \
56]) 99])
100dnl For librcutil
101AC_CHECK_FUNCS([remove])
102
103dnl Check if gcc provides va_copy or __va_copy (for librcutil)
104AC_MSG_CHECKING([for va_copy])
105AC_TRY_COMPILE([
106 #include <stdarg.h>
107 ], [
108 va_list ap, aq;
109 va_copy(ap, aq);
110 ],
111 [va_copy="va_copy"],
112 [AC_TRY_COMPILE([
113 #include <stdarg.h>
114 ], [
115 va_list ap, aq;
116 __va_copy(ap, aq);
117 ],
118 [va_copy="__va_copy"],
119 [AC_MSG_ERROR([Unable to determine name of va_copy macro])]
120 )]
121)
122AC_MSG_RESULT([$va_copy])
123if test x"$va_copy" != xva_copy ; then
124 AC_DEFINE_UNQUOTED([va_copy], [$va_copy],
125 [Define to name of va_copy macro proviced by gcc if its not `va_copy'.]
126 )
127fi
128
129dnl Verify people aren't doing stupid shit
130if test x"$enable_static" != xno ; then
131 AC_MSG_ERROR([dont be a Kumba, building a libsandbox.a is stupid])
132fi
133if test x"$enable_shared" != xyes ; then
134 AC_MSG_ERROR([dont be a Kumba, omitting a libsandbox.so is stupid])
135fi
136if echo $CFLAGS | $EGREP -e -static >/dev/null 2>&1; then
137 AC_MSG_ERROR([dont be a Kumba, using -static in CFLAGS is stupid])
138fi
139if echo $LDFLAGS | $EGREP -e -static >/dev/null 2>&1; then
140 AC_MSG_ERROR([dont be a Kumba, using -static in LDFLAGS is stupid])
141fi
57 142
58dnl Some libc's like those on bsd have dlopen() in libc, and not libdl 143dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
59AC_CHECK_LIB([dl], [dlopen], 144AC_CHECK_LIB([dl], [dlopen],
60 [have_libdl="yes"], 145 [have_libdl="yes"],
61 [have_libdl="no"] 146 [have_libdl="no"]
62) 147)
63if test x"$have_libdl" = xyes ; then 148if test x"$have_libdl" = xyes ; then
64 LIBDL="-ldl" 149 LIBDL="-ldl"
65 AC_SUBST([LIBDL]) 150 AC_SUBST([LIBDL])
66 DL_LIB="dl" 151 DL_LIB="dl"
67else 152else
68 DL_LIB="c" 153 DL_LIB="c"
69 AC_CHECK_LIB([c], [dlopen], 154 AC_CHECK_LIB([c], [dlopen],
70 [], 155 [],
71 [AC_MSG_ERROR([Unable to determine library providing dlopen])] 156 [AC_MSG_ERROR([Unable to determine library providing dlopen])]
72 ) 157 )
73fi 158fi
74 159
75dnl uClibc doesn't currently provide dlvsym() so lets 160dnl uClibc doesn't currently provide dlvsym() so lets
76dnl verify the toolchain supports it 161dnl verify the toolchain supports it
77AC_CHECK_LIB([$DL_LIB], [dlvsym], 162AC_CHECK_LIB([$DL_LIB], [dlvsym],
78 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])], 163 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
79 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])] 164 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
80) 165)
81 166
82dnl when using libc5, (f)trucate's offset argument type is size_t with 167dnl when using libc5, (f)trucate's offset argument type is size_t with
83dnl libc5, but it's off_t with libc6 (glibc2). 168dnl libc5, but it's off_t with libc6 (glibc2).
84AC_MSG_CHECKING([truncate argument type]) 169AC_MSG_CHECKING([truncate argument type])
85TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'` 170TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
86if test "$TRUNC_ARG_TYPE"x != x ; then 171if test "$TRUNC_ARG_TYPE"x != x ; then
87 AC_MSG_RESULT([size_t]) 172 AC_MSG_RESULT([size_t])
88 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type]) 173 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
89else 174else
90 AC_MSG_RESULT([off_t]) 175 AC_MSG_RESULT([off_t])
91 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type]) 176 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
92fi 177fi
93 178
94dnl Check if libc provides RTLD_NEXT 179dnl Check if libc provides RTLD_NEXT
95AC_MSG_CHECKING([for RTLD_NEXT]) 180AC_MSG_CHECKING([for RTLD_NEXT])
96AC_TRY_COMPILE([ 181AC_TRY_COMPILE([
97#define _GNU_SOURCE 182 #define _GNU_SOURCE
98#include <dlfcn.h> 183 #include <dlfcn.h>
99], [ 184 ], [
100#if !defined(RTLD_NEXT) 185 #if !defined(RTLD_NEXT)
101# error no RTLD_NEXT 186 # error no RTLD_NEXT
102#endif 187 #endif
103 188 ],
104int
105main (void)
106{
107 return 0;
108}
109],
110 [have_rtld_next="yes"], 189 [have_rtld_next="yes"],
111 [have_rtld_next="no"] 190 [have_rtld_next="no"]
112) 191)
113AC_MSG_RESULT([$have_rtld_next]) 192AC_MSG_RESULT([$have_rtld_next])
114AM_CONDITIONAL([HAVE_RTLD_NEXT], [test x"$have_rtld_next" = xyes]) 193if test x"$have_rtld_next" = xyes ; then
194 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
195 AC_DEFINE([HAVE_RTLD_NEXT], [1], [Have RTLD_NEXT enabled libc])
196fi
115 197
116dnl we need to handle symbols differently based upon their version, 198dnl we need to handle symbols differently based upon their version,
117dnl but we have to know which symbols the libc supports first 199dnl but we have to know which symbols the libc supports first
118AC_MSG_CHECKING([libc path]) 200AC_MSG_CHECKING([libc path])
119echo "int main(void) { return 0; }" > libctest.c 201echo "int main(void) { return 0; }" > libctest.c
120$CC -Wall -o libctest libctest.c 202$CC $CFLAGS $CPPFLAGS $LDFLAGS -Wl,-verbose -o libctest libctest.c > libctest.log 2>&1
121LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \ 203cat libctest.log 1>&AS_MESSAGE_LOG_FD
204LIBC_PATH=$(
122 $AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'` 205 $AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}' libctest.log
206)
123rm -f libctest.c 207rm -f libctest*
124if test "$LIBC_PATH"x = x || ! test -r "$LIBC_PATH"; then 208if test x"$LIBC_PATH" = x || ! test -r "$LIBC_PATH" ; then
125 AC_MSG_ERROR([Unable to determine LIBC PATH]) 209 AC_MSG_ERROR([Unable to determine LIBC PATH ($LIBC_PATH)])
126fi 210fi
127AC_MSG_RESULT([$LIBC_PATH]) 211AC_MSG_RESULT([$LIBC_PATH])
128AC_SUBST([LIBC_PATH]) 212AC_SUBST([LIBC_PATH])
129 213
130dnl when intercepting libc calls, we have to know the name of the 214dnl when intercepting libc calls, we have to know the name of the
131dnl libc to load and search with dl*() calls 215dnl libc to load and search with dl*() calls
132AC_MSG_CHECKING([libc version]) 216AC_MSG_CHECKING([libc version])
133dnl the sed script at the end here looks funny but it's ok ... 217dnl the sed script at the end here looks funny but it's ok ...
134dnl they're m4 escape sequences for left and right brackets 218echo "int main(void) { return 0; }" > libctest.c
135LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'` 219$CC $CFLAGS $CPPFLAGS $LDFLAGS -Wall -o libctest libctest.c
220LIBC_VERSION=$(
221 $READELF -d libctest | \
222 grep NEEDED.*libc\\.so | \
223 $AWK '{print $NF}' | sed -e ['s:\[::' -e 's:\]::']
224)
225rm -f libctest*
136if test "$LIBC_VERSION"x = x ; then 226if test "$LIBC_VERSION"x = x ; then
137 AC_MSG_ERROR([Unable to determine LIBC VERSION]) 227 AC_MSG_ERROR([Unable to determine LIBC VERSION])
138fi 228fi
139rm -f libctest
140AC_MSG_RESULT([$LIBC_VERSION]) 229AC_MSG_RESULT([$LIBC_VERSION])
141AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [name of libc to hook into]) 230AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [Name of libc to hook into])
142 231
143dnl check if we have 32bit or 64bit output 232dnl We add to CPPFLAGS rather than doing AC_DEFINE_UNQUOTED
144AC_ARG_ENABLE([multilib], 233dnl so we dont have to worry about fully expanding all of
145 AS_HELP_STRING([--enable-multilib], 234dnl the variables ($sysconfdir defaults to "$prefix/etc")
146 [enable building for multilib setups (default=disabled)]), 235SANDBOX_DEFINES='-DETCDIR="\"$(sysconfdir)\"" -DLIBSANDBOX_PATH="\"$(libdir)\"" -DSANDBOX_BASHRC_PATH="\"$(pkgdatadir)\""'
147 [enable_multilib="$enableval"], 236AC_SUBST([SANDBOX_DEFINES])
148 [enable_multilib="no"]
149)
150 237
151if test x"$enable_multilib" != xno ; then 238CPPFLAGS="$CPPFLAGS -D_REENTRANT"
152 AC_DEFINE_UNQUOTED([SB_HAVE_MULTILIB], [1], [have multilib enabled system]) 239if test "$GCC" = yes; then
240 CFLAGS="$CFLAGS -Wall"
153fi 241fi
242
243AC_CONFIG_TESTDIR([tests])
154 244
155AC_OUTPUT([ 245AC_OUTPUT([
156 Makefile 246 Makefile
157 scripts/Makefile 247 scripts/Makefile
248 etc/Makefile
158 data/Makefile 249 data/Makefile
250 libsbutil/Makefile
251 libsandbox/Makefile
159 src/Makefile 252 src/Makefile
253 tests/atlocal
254 tests/Makefile
255 tests/package.m4
160]) 256])

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