/[path-sandbox]/trunk/configure.ac
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Revision 232 Revision 405
1AC_PREREQ([2.59]) 1AC_PREREQ([2.61])
2AC_INIT([sandbox], [1.2.17], [sandbox@gentoo.org]) 2AC_INIT([sandbox], [1.3.0], [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
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], [false]) 12AC_CHECK_PROGS([READELF], [readelf eu-readelf], [false])
13AM_MISSING_PROG([AUTOM4TE], [autom4te])
13 14
14AC_ENABLE_SHARED 15AC_ENABLE_SHARED
15AC_DISABLE_STATIC 16AC_DISABLE_STATIC
16dnl Next four lines is a hack to prevent libtool checking for CXX/F77 17dnl Next four lines is a hack to prevent libtool checking for CXX/F77
17m4_undefine([AC_PROG_CXX]) 18m4_undefine([AC_PROG_CXX])
26dnl Checks for header files. 27dnl Checks for header files.
27AC_FUNC_ALLOCA 28AC_FUNC_ALLOCA
28AC_HEADER_DIRENT 29AC_HEADER_DIRENT
29AC_HEADER_STDC 30AC_HEADER_STDC
30AC_HEADER_SYS_WAIT 31AC_HEADER_SYS_WAIT
31AC_CHECK_HEADERS([ \ 32AC_CHECK_HEADERS_ONCE([ \
32 fcntl.h limits.h memory.h stddef.h \ 33 dirent.h \
33 stdlib.h string.h strings.h sys/file.h \ 34 dlfcn.h \
34 sys/param.h sys/time.h unistd.h utime.h \ 35 elf.h \
36 errno.h \
37 execinfo.h \
38 fcntl.h \
39 libgen.h \
40 limits.h \
41 memory.h \
42 signal.h \
43 stdarg.h \
44 stdbool.h \
45 stddef.h \
46 stdio.h \
47 stdlib.h \
48 string.h \
49 strings.h \
50 syscall.h \
51 unistd.h \
52 utime.h \
53 sys/file.h \
54 sys/mman.h \
55 sys/param.h \
56 sys/stat.h \
57 sys/time.h \
58 sys/types.h \
59 sys/wait.h \
35]) 60])
36 61
37dnl Checks for typedefs, structures, and compiler characteristics. 62dnl Checks for typedefs, structures, and compiler characteristics.
38AC_C_CONST 63AC_C_CONST
39AC_TYPE_UID_T 64AC_TYPE_UID_T
46AC_FUNC_FORK 71AC_FUNC_FORK
47AC_FUNC_LSTAT 72AC_FUNC_LSTAT
48AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK 73AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
49AC_TYPE_SIGNAL 74AC_TYPE_SIGNAL
50AC_FUNC_STAT 75AC_FUNC_STAT
51AC_CHECK_FUNCS([ \ 76AC_CHECK_FUNCS_ONCE([ \
52 bzero ftruncate getcwd lchown memmove \ 77 backtrace \
53 memcpy memset mkdir pathconf realpath \ 78 ftruncate \
54 rmdir setenv strcasecmp strchr strdup \ 79 getcwd \
55 strerror strndup strrchr strspn strstr \ 80 lchown \
81 memmove \
82 memcpy \
83 memset \
84 mkdir \
85 pathconf \
86 realpath \
87 rmdir \
88 setenv \
89 strcasecmp \
90 strchr \
91 strdup \
92 strerror \
93 strndup \
94 strrchr \
95 strspn \
96 strstr \
97 strtok_r \
56]) 98])
99dnl For librcutil
100AC_CHECK_FUNCS([remove])
101
102dnl Check if gcc provides va_copy or __va_copy (for librcutil)
103AC_MSG_CHECKING([for va_copy])
104AC_TRY_COMPILE([
105 #include <stdarg.h>
106 ], [
107 va_list ap, aq;
108 va_copy(ap, aq);
109 ],
110 [va_copy="va_copy"],
111 [AC_TRY_COMPILE([
112 #include <stdarg.h>
113 ], [
114 va_list ap, aq;
115 __va_copy(ap, aq);
116 ],
117 [va_copy="__va_copy"],
118 [AC_MSG_ERROR([Unable to determine name of va_copy macro])]
119 )]
120)
121AC_MSG_RESULT([$va_copy])
122if test x"$va_copy" != xva_copy ; then
123 AC_DEFINE_UNQUOTED([va_copy], [$va_copy],
124 [Define to name of va_copy macro proviced by gcc if its not `va_copy'.]
125 )
126fi
127
128dnl Verify people aren't doing stupid shit
129if test x"$enable_static" != xno ; then
130 AC_MSG_ERROR([dont be a Kumba, building a libsandbox.a is stupid])
131fi
132if test x"$enable_shared" != xyes ; then
133 AC_MSG_ERROR([dont be a Kumba, omitting a libsandbox.so is stupid])
134fi
135if echo $CFLAGS | $EGREP -e -static >/dev/null 2>&1; then
136 AC_MSG_ERROR([dont be a Kumba, using -static in CFLAGS is stupid])
137fi
138if echo $LDFLAGS | $EGREP -e -static >/dev/null 2>&1; then
139 AC_MSG_ERROR([dont be a Kumba, using -static in LDFLAGS is stupid])
140fi
57 141
58dnl Some libc's like those on bsd have dlopen() in libc, and not libdl 142dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
59AC_CHECK_LIB([dl], [dlopen], 143AC_CHECK_LIB([dl], [dlopen],
60 [have_libdl="yes"], 144 [have_libdl="yes"],
61 [have_libdl="no"] 145 [have_libdl="no"]
62) 146)
63if test x"$have_libdl" = xyes ; then 147if test x"$have_libdl" = xyes ; then
64 LIBDL="-ldl" 148 LIBDL="-ldl"
65 AC_SUBST([LIBDL]) 149 AC_SUBST([LIBDL])
66 DL_LIB="dl" 150 DL_LIB="dl"
67else 151else
68 DL_LIB="c" 152 DL_LIB="c"
69 AC_CHECK_LIB([c], [dlopen], 153 AC_CHECK_LIB([c], [dlopen],
70 [], 154 [],
71 [AC_MSG_ERROR([Unable to determine library providing dlopen])] 155 [AC_MSG_ERROR([Unable to determine library providing dlopen])]
72 ) 156 )
73fi 157fi
74 158
75dnl uClibc doesn't currently provide dlvsym() so lets 159dnl uClibc doesn't currently provide dlvsym() so lets
76dnl verify the toolchain supports it 160dnl verify the toolchain supports it
77AC_CHECK_LIB([$DL_LIB], [dlvsym], 161AC_CHECK_LIB([$DL_LIB], [dlvsym],
78 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])], 162 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
79 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])] 163 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
80) 164)
81 165
82dnl when using libc5, (f)trucate's offset argument type is size_t with 166dnl when using libc5, (f)trucate's offset argument type is size_t with
83dnl libc5, but it's off_t with libc6 (glibc2). 167dnl libc5, but it's off_t with libc6 (glibc2).
84AC_MSG_CHECKING([truncate argument type]) 168AC_MSG_CHECKING([truncate argument type])
85TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'` 169TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
86if test "$TRUNC_ARG_TYPE"x != x ; then 170if test "$TRUNC_ARG_TYPE"x != x ; then
87 AC_MSG_RESULT([size_t]) 171 AC_MSG_RESULT([size_t])
88 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type]) 172 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
89else 173else
90 AC_MSG_RESULT([off_t]) 174 AC_MSG_RESULT([off_t])
91 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type]) 175 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
92fi 176fi
93 177
94dnl Check if libc provides RTLD_NEXT 178dnl Check if libc provides RTLD_NEXT
95AC_MSG_CHECKING([for RTLD_NEXT]) 179AC_MSG_CHECKING([for RTLD_NEXT])
96AC_TRY_COMPILE([ 180AC_TRY_COMPILE([
97#define _GNU_SOURCE 181 #define _GNU_SOURCE
98#include <dlfcn.h> 182 #include <dlfcn.h>
99], [ 183 ], [
100#if !defined(RTLD_NEXT) 184 #if !defined(RTLD_NEXT)
101# error no RTLD_NEXT 185 # error no RTLD_NEXT
102#endif 186 #endif
103 187 ],
104int
105main (void)
106{
107 return 0;
108}
109],
110 [have_rtld_next="yes"], 188 [have_rtld_next="yes"],
111 [have_rtld_next="no"] 189 [have_rtld_next="no"]
112) 190)
113AC_MSG_RESULT([$have_rtld_next]) 191AC_MSG_RESULT([$have_rtld_next])
114AM_CONDITIONAL([HAVE_RTLD_NEXT], [test x"$have_rtld_next" = xyes]) 192if test x"$have_rtld_next" = xyes ; then
193 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
194 AC_DEFINE([HAVE_RTLD_NEXT], [1], [Have RTLD_NEXT enabled libc])
195fi
115 196
116dnl we need to handle symbols differently based upon their version, 197dnl we need to handle symbols differently based upon their version,
117dnl but we have to know which symbols the libc supports first 198dnl but we have to know which symbols the libc supports first
118AC_MSG_CHECKING([libc path]) 199AC_MSG_CHECKING([libc path])
119echo "int main(void) { return 0; }" > libctest.c 200echo "int main(void) { return 0; }" > libctest.c
120$CC -Wall -o libctest libctest.c 201$CC $CFLAGS $CPPFLAGS $LDFLAGS -Wl,-verbose -o libctest libctest.c > libctest.log 2>&1
121LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \ 202cat libctest.log 1>&AS_MESSAGE_LOG_FD
203LIBC_PATH=$(
122 $AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'` 204 $AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}' libctest.log
205)
123rm -f libctest.c 206rm -f libctest*
124if test "$LIBC_PATH"x = x || ! test -r "$LIBC_PATH"; then 207if test x"$LIBC_PATH" = x || ! test -r "$LIBC_PATH" ; then
125 AC_MSG_ERROR([Unable to determine LIBC PATH]) 208 AC_MSG_ERROR([Unable to determine LIBC PATH ($LIBC_PATH)])
126fi 209fi
127AC_MSG_RESULT([$LIBC_PATH]) 210AC_MSG_RESULT([$LIBC_PATH])
128AC_SUBST([LIBC_PATH]) 211AC_SUBST([LIBC_PATH])
129 212
130dnl when intercepting libc calls, we have to know the name of the 213dnl when intercepting libc calls, we have to know the name of the
131dnl libc to load and search with dl*() calls 214dnl libc to load and search with dl*() calls
132AC_MSG_CHECKING([libc version]) 215AC_MSG_CHECKING([libc version])
133dnl the sed script at the end here looks funny but it's ok ... 216dnl the sed script at the end here looks funny but it's ok ...
134dnl they're m4 escape sequences for left and right brackets 217echo "int main(void) { return 0; }" > libctest.c
135LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'` 218$CC $CFLAGS $CPPFLAGS $LDFLAGS -Wall -o libctest libctest.c
219LIBC_VERSION=$(
220 $READELF -d libctest | \
221 grep NEEDED.*libc\\.so | \
222 $AWK '{print $NF}' | sed -e ['s:\[::' -e 's:\]::']
223)
224rm -f libctest*
136if test "$LIBC_VERSION"x = x ; then 225if test "$LIBC_VERSION"x = x ; then
137 AC_MSG_ERROR([Unable to determine LIBC VERSION]) 226 AC_MSG_ERROR([Unable to determine LIBC VERSION])
138fi 227fi
139rm -f libctest
140AC_MSG_RESULT([$LIBC_VERSION]) 228AC_MSG_RESULT([$LIBC_VERSION])
141AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [name of libc to hook into]) 229AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [Name of libc to hook into])
142 230
143dnl check if we have 32bit or 64bit output 231dnl We add to CPPFLAGS rather than doing AC_DEFINE_UNQUOTED
144AC_ARG_ENABLE([multilib], 232dnl so we dont have to worry about fully expanding all of
145 AS_HELP_STRING([--enable-multilib], 233dnl the variables ($sysconfdir defaults to "$prefix/etc")
146 [enable building for multilib setups (default=disabled)]), 234SANDBOX_DEFINES='-DETCDIR="\"$(sysconfdir)\"" -DLIBSANDBOX_PATH="\"$(libdir)\"" -DSANDBOX_BASHRC_PATH="\"$(pkgdatadir)\""'
147 [enable_multilib="$enableval"], 235AC_SUBST([SANDBOX_DEFINES])
148 [enable_multilib="no"]
149)
150 236
151if test x"$enable_multilib" != xno ; then 237CPPFLAGS="$CPPFLAGS -D_REENTRANT"
152 AC_DEFINE_UNQUOTED([SB_HAVE_MULTILIB], [1], [have multilib enabled system]) 238if test "$GCC" = yes; then
239 CFLAGS="$CFLAGS -Wall"
153fi 240fi
241
242AC_CONFIG_TESTDIR([tests])
154 243
155AC_OUTPUT([ 244AC_OUTPUT([
156 Makefile 245 Makefile
157 scripts/Makefile 246 scripts/Makefile
247 etc/Makefile
158 data/Makefile 248 data/Makefile
249 libsbutil/Makefile
250 libsandbox/Makefile
159 src/Makefile 251 src/Makefile
252 tests/atlocal
253 tests/Makefile
254 tests/package.m4
160]) 255])

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