1 # This file is generated from configure.in by Autoconf. DO NOT EDIT!
3 if test "x$libc_cv_gcc___thread" != xyes; then
4 { { $as_echo "$as_me:$LINENO: error: compiler support for __thread is required" >&5
5 $as_echo "$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 { { $as_echo "$as_me:$LINENO: error: working compiler support for visibility attribute is required" >&5
12 $as_echo "$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 { { $as_echo "$as_me:$LINENO: error: CFI directive support in assembler is required" >&5
20 $as_echo "$as_me: error: CFI directive support in assembler is required" >&2;}
21 { (exit 1); exit 1; }; } ;;
27 { $as_echo "$as_me:$LINENO: checking for forced unwind support" >&5
28 $as_echo_n "checking for forced unwind support... " >&6; }
29 if test "${libc_cv_forced_unwind+set}" = set; then
30 $as_echo_n "(cached) " >&6
32 cat >conftest.$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 { (ac_try="$ac_link"
53 *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
54 *) ac_try_echo=$ac_try;;
56 eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
57 $as_echo "$ac_try_echo") >&5
58 (eval "$ac_link") 2>conftest.er1
60 grep -v '^ *+' conftest.er1 >conftest.err
63 $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
64 (exit $ac_status); } && {
65 test -z "$ac_c_werror_flag" ||
66 test ! -s conftest.err
67 } && test -s conftest$ac_exeext && {
68 test "$cross_compiling" = yes ||
69 $as_test_x conftest$ac_exeext
71 libc_cv_forced_unwind=yes
73 $as_echo "$as_me: failed program was:" >&5
74 sed 's/^/| /' conftest.$ac_ext >&5
76 libc_cv_forced_unwind=no
80 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
81 conftest$ac_exeext conftest.$ac_ext
83 { $as_echo "$as_me:$LINENO: result: $libc_cv_forced_unwind" >&5
84 $as_echo "$libc_cv_forced_unwind" >&6; }
85 if test $libc_cv_forced_unwind = yes; then
86 cat >>confdefs.h <<\_ACEOF
87 #define HAVE_FORCED_UNWIND 1
91 CFLAGS="$CFLAGS -Werror -fexceptions"
92 { $as_echo "$as_me:$LINENO: checking for C cleanup handling" >&5
93 $as_echo_n "checking for C cleanup handling... " >&6; }
94 if test "${libc_cv_c_cleanup+set}" = set; then
95 $as_echo_n "(cached) " >&6
97 cat >conftest.$ac_ext <<_ACEOF
100 cat confdefs.h >>conftest.$ac_ext
101 cat >>conftest.$ac_ext <<_ACEOF
102 /* end confdefs.h. */
105 void cl (void *a) { }
110 int a __attribute__ ((cleanup (cl)));
116 rm -f conftest.$ac_objext conftest$ac_exeext
117 if { (ac_try="$ac_link"
119 *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
120 *) ac_try_echo=$ac_try;;
122 eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
123 $as_echo "$ac_try_echo") >&5
124 (eval "$ac_link") 2>conftest.er1
126 grep -v '^ *+' conftest.er1 >conftest.err
129 $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
130 (exit $ac_status); } && {
131 test -z "$ac_c_werror_flag" ||
132 test ! -s conftest.err
133 } && test -s conftest$ac_exeext && {
134 test "$cross_compiling" = yes ||
135 $as_test_x conftest$ac_exeext
137 libc_cv_c_cleanup=yes
139 $as_echo "$as_me: failed program was:" >&5
140 sed 's/^/| /' conftest.$ac_ext >&5
146 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
147 conftest$ac_exeext conftest.$ac_ext
149 { $as_echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5
150 $as_echo "$libc_cv_c_cleanup" >&6; }
152 if test $libc_cv_c_cleanup = no; then
153 { { $as_echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5
154 $as_echo "$as_me: error: the compiler must support C cleanup handling" >&2;}
155 { (exit 1); exit 1; }; }
158 { { $as_echo "$as_me:$LINENO: error: forced unwind support is required" >&5
159 $as_echo "$as_me: error: forced unwind support is required" >&2;}
160 { (exit 1); exit 1; }; }