1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
AC_DEFUN(DC_SETVERSIONSCRIPT, [
VERSIONSCRIPT="$1"
SYMFILE="$2"
delete_symfile='0'
if test ! -f "${SYMFILE}"; then
delete_symfile='1'
echo '' > "${SYMFILE}"
fi
SAVE_LDFLAGS="${LDFLAGS}"
AC_MSG_CHECKING([for how to set version script])
for tryaddldflags in "-Wl,--version-script -Wl,${VERSIONSCRIPT}" "-Wl,-exported_symbols_list -Wl,${SYMFILE}"; do
LDFLAGS="${SAVE_LDFLAGS} ${tryaddldflags}"
AC_TRY_LINK([], [], [
addldflags="${tryaddldflags}"
break
])
done
if test "${delete_symfile}" = "1"; then
rm -f "${SYMFILE}"
fi
if test -n "${addldflags}"; then
LDFLAGS="${SAVE_LDFLAGS} ${addldflags}"
AC_MSG_RESULT($addldflags)
else
LDFLAGS="${SAVE_LDFLAGS}"
AC_MSG_RESULT([don't know])
fi
])
AC_DEFUN(DC_FIND_STRIP_AND_REMOVESYMS, [
SYMFILE="$1"
dnl Determine how to strip executables
AC_CHECK_TOOLS(OBJCOPY, objcopy gobjcopy, [false])
AC_CHECK_TOOLS(STRIP, strip gstrip, [false])
if test "x${STRIP}" = "xfalse"; then
STRIP="${OBJCOPY}"
fi
WEAKENSYMS='true'
REMOVESYMS='true'
SYMPREFIX=''
case $host_os in
darwin*)
REMOVESYMS="${STRIP} -i -u -s ${SYMFILE}"
SYMPREFIX="_"
;;
*)
if test "x${OBJCOPY}" != "xfalse"; then
WEAKENSYMS="${OBJCOPY} --keep-global-symbols=${SYMFILE}"
REMOVESYMS="${OBJCOPY} --discard-all"
elif test "x${STRIP}" != "xfalse"; then
REMOVESYMS="${STRIP} -x"
fi
;;
esac
AC_SUBST(WEAKENSYMS)
AC_SUBST(REMOVESYMS)
AC_SUBST(SYMPREFIX)
])
|
