/[path-sandbox]/trunk/configure.ac
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trunk/configure.in Revision 183 trunk/configure.ac Revision 412
1AC_PREREQ([2.59]) 1AC_PREREQ([2.61])
2AC_INIT([sandbox], [1.2.14], [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
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
44dnl Checks for library functions. 70dnl Checks for library functions.
45AC_FUNC_CHOWN 71AC_FUNC_CHOWN
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_FUNC_MALLOC
50AC_FUNC_REALLOC
51AC_TYPE_SIGNAL 75AC_TYPE_SIGNAL
52AC_FUNC_STAT 76AC_FUNC_STAT
53AC_CHECK_FUNCS([ \ 77AC_CHECK_FUNCS_ONCE([ \
54 bzero ftruncate getcwd lchown memmove \ 78 backtrace \
55 mempcpy memset mkdir pathconf realpath \ 79 ftruncate \
56 rmdir setenv strcasecmp strchr strdup \ 80 getcwd \
57 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 \
58]) 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 | $EGREP -e -static >/dev/null 2>&1; then
140 AC_MSG_ERROR([dont be a Kumba, using -static in LDFLAGS is stupid])
141fi
142
143dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
144AC_CHECK_LIB([dl], [dlopen],
145 [have_libdl="yes"],
146 [have_libdl="no"]
147)
148if test x"$have_libdl" = xyes ; then
149 LIBDL="-ldl"
150 AC_SUBST([LIBDL])
151 DL_LIB="dl"
152else
153 DL_LIB="c"
154 AC_CHECK_LIB([c], [dlopen],
155 [],
156 [AC_MSG_ERROR([Unable to determine library providing dlopen])]
157 )
158fi
59 159
60dnl uClibc doesn't currently provide dlvsym() so lets 160dnl uClibc doesn't currently provide dlvsym() so lets
61dnl verify the toolchain supports it 161dnl verify the toolchain supports it
62AC_CHECK_LIB(dl, dlvsym, 162AC_CHECK_LIB([$DL_LIB], [dlvsym],
63 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])], 163 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
64 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])] 164 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
65) 165)
66 166
67dnl 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
68dnl libc5, but it's off_t with libc6 (glibc2). 168dnl libc5, but it's off_t with libc6 (glibc2).
69AC_MSG_CHECKING([truncate argument type]) 169AC_MSG_CHECKING([truncate argument type])
70TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'` 170TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
71if test "$TRUNC_ARG_TYPE"x != x ; then 171if test "$TRUNC_ARG_TYPE"x != x ; then
72 AC_MSG_RESULT([size_t]) 172 AC_MSG_RESULT([size_t])
73 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type]) 173 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
74else 174else
75 AC_MSG_RESULT([off_t]) 175 AC_MSG_RESULT([off_t])
76 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type]) 176 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
177fi
178
179dnl Check if libc provides RTLD_NEXT
180AC_MSG_CHECKING([for RTLD_NEXT])
181AC_TRY_COMPILE([
182 #define _GNU_SOURCE
183 #include <dlfcn.h>
184 ], [
185 #if !defined(RTLD_NEXT)
186 # error no RTLD_NEXT
187 #endif
188 ],
189 [have_rtld_next="yes"],
190 [have_rtld_next="no"]
191)
192AC_MSG_RESULT([$have_rtld_next])
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])
77fi 196fi
78 197
79dnl we need to handle symbols differently based upon their version, 198dnl we need to handle symbols differently based upon their version,
80dnl but we have to know which symbols the libc supports first 199dnl but we have to know which symbols the libc supports first
81AC_MSG_CHECKING([libc path]) 200AC_MSG_CHECKING([libc path])
82echo "int main(void) { return 0; }" > libctest.c 201echo "int main(void) { return 0; }" > libctest.c
83$CC -Wall -o libctest libctest.c 202$CC $CFLAGS $CPPFLAGS $LDFLAGS -Wl,-verbose -o libctest libctest.c > libctest.log 2>&1
84LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \ 203cat libctest.log 1>&AS_MESSAGE_LOG_FD
204LIBC_PATH=$(
85 $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 = $4; }; END {print LIBC}' libctest.log
206)
86rm -f libctest.c 207rm -f libctest*
87if test "$LIBC_PATH"x = x ; then 208if test x"$LIBC_PATH" = x || ! test -r "$LIBC_PATH" ; then
88 AC_MSG_ERROR([Unable to determine LIBC PATH]) 209 AC_MSG_ERROR([Unable to determine LIBC PATH ($LIBC_PATH)])
89fi 210fi
90AC_MSG_RESULT([$LIBC_PATH]) 211AC_MSG_RESULT([$LIBC_PATH])
91AC_SUBST([LIBC_PATH]) 212AC_SUBST([LIBC_PATH])
92 213
93dnl 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
94dnl libc to load and search with dl*() calls 215dnl libc to load and search with dl*() calls
95AC_MSG_CHECKING([libc version]) 216AC_MSG_CHECKING([libc version])
96dnl 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 ...
97dnl they're m4 escape sequences for left and right brackets 218echo "int main(void) { return 0; }" > libctest.c
98LIBC_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*
99if test "$LIBC_VERSION"x = x ; then 226if test "$LIBC_VERSION"x = x ; then
100 AC_MSG_ERROR([Unable to determine LIBC VERSION]) 227 AC_MSG_ERROR([Unable to determine LIBC VERSION])
101fi 228fi
102rm -f libctest
103AC_MSG_RESULT([$LIBC_VERSION]) 229AC_MSG_RESULT([$LIBC_VERSION])
104AC_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])
105 231
106dnl check if we have 32bit or 64bit output 232dnl We add to CPPFLAGS rather than doing AC_DEFINE_UNQUOTED
107AC_ARG_ENABLE([multilib], 233dnl so we dont have to worry about fully expanding all of
108 AS_HELP_STRING([--enable-multilib], 234dnl the variables ($sysconfdir defaults to "$prefix/etc")
109 [enable building for multilib setups (default=disabled)]), 235SANDBOX_DEFINES='-DETCDIR="\"$(sysconfdir)\"" -DLIBSANDBOX_PATH="\"$(libdir)\"" -DSANDBOX_BASHRC_PATH="\"$(pkgdatadir)\""'
110 [enable_multilib="$enableval"], 236AC_SUBST([SANDBOX_DEFINES])
111 [enable_multilib="no"]
112)
113 237
114if test "$enable_multilib"x != xno ; then 238CPPFLAGS="$CPPFLAGS -D_REENTRANT"
115 AC_DEFINE_UNQUOTED([SB_HAVE_MULTILIB], [1], [have multilib enabled system]) 239if test "$GCC" = yes; then
240 CFLAGS="$CFLAGS -Wall"
116fi 241fi
242
243AC_CONFIG_TESTDIR([tests])
117 244
118AC_OUTPUT([ 245AC_OUTPUT([
119 Makefile 246 Makefile
120 scripts/Makefile 247 scripts/Makefile
248 etc/Makefile
121 data/Makefile 249 data/Makefile
250 libsbutil/Makefile
251 libsandbox/Makefile
122 src/Makefile 252 src/Makefile
253 tests/atlocal
254 tests/Makefile
255 tests/package.m4
123]) 256])

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