about summary refs log tree commit diff
path: root/nptl/sysdeps/pthread/configure
blob: 7768c5c741bf41acc84cea553a896419f69c7165 (plain) (blame)
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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
# This file is generated from configure.in by Autoconf.  DO NOT EDIT!

if test "x$libc_cv_gcc___thread" != xyes; then
  { { $as_echo "$as_me:$LINENO: error: compiler support for __thread is required" >&5
$as_echo "$as_me: error: compiler support for __thread is required" >&2;}
   { (exit 1); exit 1; }; }
fi

if test "x${libc_cv_visibility_attribute}" != xyes ||
   test "x${libc_cv_broken_visibility_attribute}" != xno; then
  { { $as_echo "$as_me:$LINENO: error: working compiler support for visibility attribute is required" >&5
$as_echo "$as_me: error: working compiler support for visibility attribute is required" >&2;}
   { (exit 1); exit 1; }; }
fi

if test "x$libc_cv_asm_cfi_directives" != xyes; then
    case "$base_machine" in
    i386 | x86_64 | powerpc | s390)
      { { $as_echo "$as_me:$LINENO: error: CFI directive support in assembler is required" >&5
$as_echo "$as_me: error: CFI directive support in assembler is required" >&2;}
   { (exit 1); exit 1; }; } ;;
    *) ;;
  esac
fi


{ $as_echo "$as_me:$LINENO: checking for forced unwind support" >&5
$as_echo_n "checking for forced unwind support... " >&6; }
if test "${libc_cv_forced_unwind+set}" = set; then
  $as_echo_n "(cached) " >&6
else
  cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */
#include <unwind.h>
int
main ()
{

struct _Unwind_Exception exc;
struct _Unwind_Context *context;
_Unwind_GetCFA (context)
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
$as_echo "$ac_try_echo") >&5
  (eval "$ac_link") 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && {
	 test -z "$ac_c_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest$ac_exeext && {
	 test "$cross_compiling" = yes ||
	 $as_test_x conftest$ac_exeext
       }; then
  libc_cv_forced_unwind=yes
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	libc_cv_forced_unwind=no
fi

rm -rf conftest.dSYM
rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
      conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:$LINENO: result: $libc_cv_forced_unwind" >&5
$as_echo "$libc_cv_forced_unwind" >&6; }
if test $libc_cv_forced_unwind = yes; then
  cat >>confdefs.h <<\_ACEOF
#define HAVE_FORCED_UNWIND 1
_ACEOF

  old_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -Werror -fexceptions"
  { $as_echo "$as_me:$LINENO: checking for C cleanup handling" >&5
$as_echo_n "checking for C cleanup handling... " >&6; }
if test "${libc_cv_c_cleanup+set}" = set; then
  $as_echo_n "(cached) " >&6
else
    cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h.  */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h.  */

#include <stdio.h>
void cl (void *a) { }
int
main ()
{

  int a __attribute__ ((cleanup (cl)));
  puts ("test")
  ;
  return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
$as_echo "$ac_try_echo") >&5
  (eval "$ac_link") 2>conftest.er1
  ac_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  cat conftest.err >&5
  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); } && {
	 test -z "$ac_c_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest$ac_exeext && {
	 test "$cross_compiling" = yes ||
	 $as_test_x conftest$ac_exeext
       }; then
  libc_cv_c_cleanup=yes
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	libc_cv_c_cleanup=no
fi

rm -rf conftest.dSYM
rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
      conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5
$as_echo "$libc_cv_c_cleanup" >&6; }
  CFLAGS="$old_CFLAGS"
  if test $libc_cv_c_cleanup = no; then
    { { $as_echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5
$as_echo "$as_me: error: the compiler must support C cleanup handling" >&2;}
   { (exit 1); exit 1; }; }
  fi
else
  { { $as_echo "$as_me:$LINENO: error: forced unwind support is required" >&5
$as_echo "$as_me: error: forced unwind support is required" >&2;}
   { (exit 1); exit 1; }; }
fi