/[path-sandbox]/trunk/configure.ac
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trunk/configure.in Revision 2 trunk/configure.ac Revision 232
1AC_PREREQ(2.59) 1AC_PREREQ([2.59])
2AC_INIT(sandbox, 1.1, dev-portage@gentoo.org) 2AC_INIT([sandbox], [1.2.17], [sandbox@gentoo.org])
3AM_INIT_AUTOMAKE 3AM_INIT_AUTOMAKE
4AC_CONFIG_SRCDIR([canonicalize.c])
5AM_CONFIG_HEADER([config.h]) 4AC_CONFIG_HEADER([config.h])
6 5
7# Checks for programs. 6dnl Checks for programs.
8AC_PROG_CC 7AC_PROG_CC
8AC_ISC_POSIX
9AC_PROG_INSTALL
10AC_PROG_MAKE_SET
11AC_PROG_AWK
12AC_CHECK_PROGS([READELF], [readelf], [false])
13
14AC_ENABLE_SHARED
15AC_DISABLE_STATIC
16dnl Next four lines is a hack to prevent libtool checking for CXX/F77
17m4_undefine([AC_PROG_CXX])
18m4_defun([AC_PROG_CXX],[])
19m4_undefine([AC_PROG_F77])
20m4_defun([AC_PROG_F77],[])
9AC_PROG_LIBTOOL 21AC_PROG_LIBTOOL
10 22
11AC_PREFIX_DEFAULT([/usr]) 23AC_PREFIX_DEFAULT([/usr])
12# Checks for libraries.
13 24
25dnl Checks for libraries.
14# Checks for header files. 26dnl Checks for header files.
15AC_FUNC_ALLOCA 27AC_FUNC_ALLOCA
16AC_HEADER_DIRENT 28AC_HEADER_DIRENT
17AC_HEADER_STDC 29AC_HEADER_STDC
18AC_HEADER_SYS_WAIT 30AC_HEADER_SYS_WAIT
19AC_CHECK_HEADERS([fcntl.h limits.h memory.h stddef.h stdlib.h string.h strings.h sys/file.h sys/param.h sys/time.h unistd.h utime.h]) 31AC_CHECK_HEADERS([ \
32 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])
20 36
21# Checks for typedefs, structures, and compiler characteristics. 37dnl Checks for typedefs, structures, and compiler characteristics.
22AC_C_CONST 38AC_C_CONST
23AC_TYPE_UID_T 39AC_TYPE_UID_T
24AC_TYPE_MODE_T 40AC_TYPE_MODE_T
25AC_TYPE_SIZE_T 41AC_TYPE_SIZE_T
26AC_CHECK_TYPES([ptrdiff_t]) 42AC_CHECK_TYPES([ptrdiff_t])
27 43
28# Checks for library functions. 44dnl Checks for library functions.
29AC_FUNC_CHOWN 45AC_FUNC_CHOWN
30AC_FUNC_FORK 46AC_FUNC_FORK
31AC_FUNC_LSTAT 47AC_FUNC_LSTAT
32AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK 48AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
33AC_FUNC_MALLOC
34AC_FUNC_REALLOC
35AC_TYPE_SIGNAL 49AC_TYPE_SIGNAL
36AC_FUNC_STAT 50AC_FUNC_STAT
37AC_CHECK_FUNCS([bzero ftruncate getcwd lchown memmove mempcpy memset mkdir pathconf realpath rmdir setenv strcasecmp strchr strdup strerror strndup strrchr strspn strstr]) 51AC_CHECK_FUNCS([ \
52 bzero ftruncate getcwd lchown memmove \
53 memcpy memset mkdir pathconf realpath \
54 rmdir setenv strcasecmp strchr strdup \
55 strerror strndup strrchr strspn strstr \
56])
38 57
39AC_CONFIG_FILES([Makefile]) 58dnl Some libc's like those on bsd have dlopen() in libc, and not libdl
59AC_CHECK_LIB([dl], [dlopen],
60 [have_libdl="yes"],
61 [have_libdl="no"]
62)
63if test x"$have_libdl" = xyes ; then
64 LIBDL="-ldl"
65 AC_SUBST([LIBDL])
66 DL_LIB="dl"
67else
68 DL_LIB="c"
69 AC_CHECK_LIB([c], [dlopen],
70 [],
71 [AC_MSG_ERROR([Unable to determine library providing dlopen])]
72 )
73fi
74
75dnl uClibc doesn't currently provide dlvsym() so lets
76dnl verify the toolchain supports it
77AC_CHECK_LIB([$DL_LIB], [dlvsym],
78 [AC_DEFINE([HAVE_DLVSYM], [1], [libdl supports dlvsym])],
79 [AC_DEFINE([HAVE_DLVSYM], [0], [libdl does not support dlvsym])]
80)
81
82dnl when using libc5, (f)trucate's offset argument type is size_t with
83dnl libc5, but it's off_t with libc6 (glibc2).
84AC_MSG_CHECKING([truncate argument type])
85TRUNC_ARG_TYPE=`echo '#include <unistd.h>' | $CC -E - | grep -q 'truncate.*size_t'`
86if test "$TRUNC_ARG_TYPE"x != x ; then
87 AC_MSG_RESULT([size_t])
88 AC_DEFINE([TRUNCATE_T], [size_t], [truncate arg type])
89else
90 AC_MSG_RESULT([off_t])
91 AC_DEFINE([TRUNCATE_T], [off_t], [truncate arg type])
92fi
93
94dnl Check if libc provides RTLD_NEXT
95AC_MSG_CHECKING([for RTLD_NEXT])
96AC_TRY_COMPILE([
97#define _GNU_SOURCE
98#include <dlfcn.h>
99], [
100#if !defined(RTLD_NEXT)
101# error no RTLD_NEXT
102#endif
103
104int
105main (void)
106{
107 return 0;
108}
109],
110 [have_rtld_next="yes"],
111 [have_rtld_next="no"]
112)
113AC_MSG_RESULT([$have_rtld_next])
114AM_CONDITIONAL([HAVE_RTLD_NEXT], [test x"$have_rtld_next" = xyes])
115
116dnl we need to handle symbols differently based upon their version,
117dnl but we have to know which symbols the libc supports first
118AC_MSG_CHECKING([libc path])
119echo "int main(void) { return 0; }" > libctest.c
120$CC -Wall -o libctest libctest.c
121LIBC_PATH=`$CC $CFLAGS -Wl,-verbose -o libctest libctest.c 2>&1 | \
122 $AWK '/attempt to open/ { if (($4 ~ /\/libc\.so/) && ($5 == "succeeded")) LIBC = $4; }; END {print LIBC}'`
123rm -f libctest.c
124if test "$LIBC_PATH"x = x || ! test -r "$LIBC_PATH"; then
125 AC_MSG_ERROR([Unable to determine LIBC PATH])
126fi
127AC_MSG_RESULT([$LIBC_PATH])
128AC_SUBST([LIBC_PATH])
129
130dnl when intercepting libc calls, we have to know the name of the
131dnl libc to load and search with dl*() calls
132AC_MSG_CHECKING([libc version])
133dnl the sed script at the end here looks funny but it's ok ...
134dnl they're m4 escape sequences for left and right brackets
135LIBC_VERSION=`readelf -d libctest | grep NEEDED.*libc\\.so | $AWK '{print $NF}' | sed -e 's:\@<:@::' -e 's:\@:>@::'`
136if test "$LIBC_VERSION"x = x ; then
137 AC_MSG_ERROR([Unable to determine LIBC VERSION])
138fi
139rm -f libctest
140AC_MSG_RESULT([$LIBC_VERSION])
141AC_DEFINE_UNQUOTED([LIBC_VERSION], ["$LIBC_VERSION"], [name of libc to hook into])
142
143dnl check if we have 32bit or 64bit output
144AC_ARG_ENABLE([multilib],
145 AS_HELP_STRING([--enable-multilib],
146 [enable building for multilib setups (default=disabled)]),
147 [enable_multilib="$enableval"],
148 [enable_multilib="no"]
149)
150
151if test x"$enable_multilib" != xno ; then
152 AC_DEFINE_UNQUOTED([SB_HAVE_MULTILIB], [1], [have multilib enabled system])
153fi
154
40AC_OUTPUT 155AC_OUTPUT([
156 Makefile
157 scripts/Makefile
158 data/Makefile
159 src/Makefile
160])

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