1 # This file is generated from configure.in by Autoconf. DO NOT EDIT!
3 if test "x$libc_cv_gcc___thread" != xyes; then
4 { { echo "$as_me:$LINENO: error: compiler support for __thread is required" >&5
5 echo "$as_me: error: compiler support for __thread is required" >&2;}
6 { (exit 1); exit 1; }; }
9 if test "x${libc_cv_visibility_attribute}" != xyes ||
10 test "x${libc_cv_broken_visibility_attribute}" != xno; then
11 { { echo "$as_me:$LINENO: error: working compiler support for visibility attribute is required" >&5
12 echo "$as_me: error: working compiler support for visibility attribute is required" >&2;}
13 { (exit 1); exit 1; }; }
16 if test "x$libc_cv_asm_cfi_directives" != xyes; then
17 case "$base_machine" in
18 i386 | x86_64 | powerpc | s390)
19 { { echo "$as_me:$LINENO: error: CFI directive support in assembler is required" >&5
20 echo "$as_me: error: CFI directive support in assembler is required" >&2;}
21 { (exit 1); exit 1; }; } ;;
27 echo "$as_me:$LINENO: checking for forced unwind support" >&5
28 echo $ECHO_N "checking for forced unwind support... $ECHO_C" >&6
29 if test "${libc_cv_forced_unwind+set}" = set; then
30 echo $ECHO_N "(cached) $ECHO_C" >&6
32 cat >conftest.$ac_ext <<_ACEOF
35 cat confdefs.h >>conftest.$ac_ext
36 cat >>conftest.$ac_ext <<_ACEOF
43 struct _Unwind_Exception exc;
44 struct _Unwind_Context *context;
45 _Unwind_GetCFA (context)
50 rm -f conftest.$ac_objext conftest$ac_exeext
51 if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
52 (eval $ac_link) 2>conftest.er1
54 grep -v '^ *+' conftest.er1 >conftest.err
57 echo "$as_me:$LINENO: \$? = $ac_status" >&5
58 (exit $ac_status); } &&
59 { ac_try='test -z "$ac_c_werror_flag"
60 || test ! -s conftest.err'
61 { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
64 echo "$as_me:$LINENO: \$? = $ac_status" >&5
65 (exit $ac_status); }; } &&
66 { ac_try='test -s conftest$ac_exeext'
67 { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
70 echo "$as_me:$LINENO: \$? = $ac_status" >&5
71 (exit $ac_status); }; }; then
72 libc_cv_forced_unwind=yes
74 echo "$as_me: failed program was:" >&5
75 sed 's/^/| /' conftest.$ac_ext >&5
77 libc_cv_forced_unwind=no
79 rm -f conftest.err conftest.$ac_objext \
80 conftest$ac_exeext conftest.$ac_ext
82 echo "$as_me:$LINENO: result: $libc_cv_forced_unwind" >&5
83 echo "${ECHO_T}$libc_cv_forced_unwind" >&6
84 if test $libc_cv_forced_unwind = yes; then
85 cat >>confdefs.h <<\_ACEOF
86 #define HAVE_FORCED_UNWIND 1
90 CFLAGS="$CFLAGS -Werror -fexceptions"
91 echo "$as_me:$LINENO: checking for C cleanup handling" >&5
92 echo $ECHO_N "checking for C cleanup handling... $ECHO_C" >&6
93 if test "${libc_cv_c_cleanup+set}" = set; then
94 echo $ECHO_N "(cached) $ECHO_C" >&6
96 cat >conftest.$ac_ext <<_ACEOF
99 cat confdefs.h >>conftest.$ac_ext
100 cat >>conftest.$ac_ext <<_ACEOF
101 /* end confdefs.h. */
104 void cl (void *a) { }
109 int a __attribute__ ((cleanup (cl)));
115 rm -f conftest.$ac_objext conftest$ac_exeext
116 if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
117 (eval $ac_link) 2>conftest.er1
119 grep -v '^ *+' conftest.er1 >conftest.err
122 echo "$as_me:$LINENO: \$? = $ac_status" >&5
123 (exit $ac_status); } &&
124 { ac_try='test -z "$ac_c_werror_flag"
125 || test ! -s conftest.err'
126 { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
129 echo "$as_me:$LINENO: \$? = $ac_status" >&5
130 (exit $ac_status); }; } &&
131 { ac_try='test -s conftest$ac_exeext'
132 { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
135 echo "$as_me:$LINENO: \$? = $ac_status" >&5
136 (exit $ac_status); }; }; then
137 libc_cv_c_cleanup=yes
139 echo "$as_me: failed program was:" >&5
140 sed 's/^/| /' conftest.$ac_ext >&5
144 rm -f conftest.err conftest.$ac_objext \
145 conftest$ac_exeext conftest.$ac_ext
147 echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5
148 echo "${ECHO_T}$libc_cv_c_cleanup" >&6
150 if test $libc_cv_c_cleanup = no; then
151 { { echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5
152 echo "$as_me: error: the compiler must support C cleanup handling" >&2;}
153 { (exit 1); exit 1; }; }
156 { { echo "$as_me:$LINENO: error: forced unwind support is required" >&5
157 echo "$as_me: error: forced unwind support is required" >&2;}
158 { (exit 1); exit 1; }; }