look for backtrace() in -lexecinfo, fixes #9783

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62657 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure

@@ -24160,7 +24160,7 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 ;;
 esac
-rm -f -r conftest*
+rm -f conftest*
 
 # We used to try defining _XOPEN_SOURCE=500 too, to work around a bug
 # in glibc 2.1.3, but that breaks too many other things.
@@ -36823,19 +36823,98 @@ _ACEOF
 fi
 
 if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
-    { echo "$as_me:$LINENO: checking for backtrace() in <execinfo.h>" >&5
+    ac_ext=cpp
-echo $ECHO_N "checking for backtrace() in <execinfo.h>... $ECHO_C" >&6; }
-if test "${wx_cv_func_backtrace+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-
-            ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-            cat >conftest.$ac_ext <<_ACEOF
+    { echo "$as_me:$LINENO: checking for library containing backtrace" >&5
+echo $ECHO_N "checking for library containing backtrace... $ECHO_C" >&6; }
+if test "${ac_cv_search_backtrace+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char backtrace ();
+int
+main ()
+{
+return backtrace ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' execinfo; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  rm -f conftest.$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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  ac_cv_search_backtrace=$ac_res
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext
+  if test "${ac_cv_search_backtrace+set}" = set; then
+  break
+fi
+done
+if test "${ac_cv_search_backtrace+set}" = set; then
+  :
+else
+  ac_cv_search_backtrace=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_search_backtrace" >&5
+echo "${ECHO_T}$ac_cv_search_backtrace" >&6; }
+ac_res=$ac_cv_search_backtrace
+if test "$ac_res" != no; then
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  { echo "$as_me:$LINENO: checking for backtrace() in <execinfo.h>" >&5
+echo $ECHO_N "checking for backtrace() in <execinfo.h>... $ECHO_C" >&6; }
+if test "${wx_cv_func_backtrace+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -36848,7 +36927,6 @@ main ()
 
                     void *trace[1];
                     char **messages;
-
                     backtrace(trace, 1);
                     messages = backtrace_symbols(trace, 1);
 
@@ -36856,14 +36934,14 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
+rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_compile"
+if { (ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_compile") 2>conftest.er1
+  (eval "$ac_link") 2>conftest.er1
   ac_status=$?
   grep -v '^ *+' conftest.er1 >conftest.err
   rm -f conftest.er1
@@ -36872,7 +36950,8 @@ eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
   (exit $ac_status); } && {
 	 test -z "$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
   wx_cv_func_backtrace=yes
 else
   echo "$as_me: failed program was:" >&5
@@ -36882,18 +36961,15 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 fi
 
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-            ac_ext=c
+      conftest$ac_exeext conftest.$ac_ext
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
 
 fi
 { echo "$as_me:$LINENO: result: $wx_cv_func_backtrace" >&5
 echo "${ECHO_T}$wx_cv_func_backtrace" >&6; }
+else
+  wx_cv_func_backtrace=no
+fi
 
 
     if test "$wx_cv_func_backtrace" = "no"; then
@@ -36907,12 +36983,6 @@ if test "${wx_cv_func_cxa_demangle+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
-                ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
                 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -36960,12 +37030,6 @@ fi
 
 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
       conftest$ac_exeext conftest.$ac_ext
-                ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
 
 
 fi
@@ -36979,6 +37043,12 @@ _ACEOF
 
         fi
     fi
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
 fi
 
 if test "$wxUSE_STACKWALKER" = "yes" -a "$USE_WIN32" != 1 -a "$USE_UNIX" != 1; then

configure.in

@@ -4435,24 +4435,21 @@ fi
 
 dnl backtrace() and backtrace_symbols() for wxStackWalker
 if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
-    AC_CACHE_CHECK([for backtrace() in <execinfo.h>], wx_cv_func_backtrace,
+    AC_LANG_PUSH(C++)
-        [
+    AC_SEARCH_LIBS(backtrace, execinfo,
-            AC_LANG_PUSH(C++)
+        [AC_CACHE_CHECK([for backtrace() in <execinfo.h>], wx_cv_func_backtrace,
-            AC_TRY_COMPILE([#include <execinfo.h>],
+            [AC_TRY_LINK([#include <execinfo.h>],
                 [
                     void *trace[1];
                     char **messages;
-
                     backtrace(trace, 1);
                     messages = backtrace_symbols(trace, 1);
                 ],
                 wx_cv_func_backtrace=yes,
                 wx_cv_func_backtrace=no
-            )
+            )]
-            AC_LANG_POP()
+        )],
-        ]
+        wx_cv_func_backtrace=no)
-    )
-
 
     if test "$wx_cv_func_backtrace" = "no"; then
         AC_MSG_WARN([backtrace() is not available, wxStackWalker will not be available])
@@ -4460,7 +4457,6 @@ if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
     else
         AC_CACHE_CHECK([for __cxa_demangle() in <cxxabi.h>], wx_cv_func_cxa_demangle,
             [
-                AC_LANG_PUSH(C++)
                 AC_TRY_LINK([#include <cxxabi.h>],
                     [
                         int rc;
@@ -4469,7 +4465,6 @@ if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
                     wx_cv_func_cxa_demangle=yes,
                     wx_cv_func_cxa_demangle=no
                 )
-                AC_LANG_POP()
             ]
         )
 
@@ -4477,6 +4472,7 @@ if test "$wxUSE_STACKWALKER" = "yes" -a "$wxUSE_UNIX" = "yes"; then
             AC_DEFINE(HAVE_CXA_DEMANGLE)
         fi
     fi
+    AC_LANG_POP()
 fi
 
 if test "$wxUSE_STACKWALKER" = "yes" -a "$USE_WIN32" != 1 -a "$USE_UNIX" != 1; then