Detect backtrace-related functions during configuration

See https://trac.einsteintoolkit.org/ticket/443

Patch by Roland Haas

git-svn-id: http://svn.cactuscode.org/flesh/trunk@4726 17b73243-c579-4c4c-a9d2-2d5706c11dac

1 files changed, 45 insertions, 0 deletions

diff --git a/lib/make/aclocal.m4 b/lib/make/aclocal.m4
index b7871e23..3a65e395 100644
--- a/lib/make/aclocal.m4
+++ b/lib/make/aclocal.m4
@@ -46,6 +46,51 @@ changequote([, ])dnl
 done
 ])
 
+dnl A simplified version of AC_CHECK_MEMBER from autoconf 2.50 and up
+dnl CCTK_CHECK_MEMBER(AGGREGATE, MEMBER,
+dnl                 [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
+dnl                 [INCLUDES])
+dnl ---------------------------------------------------------
+dnl AGGREGATE, MEMBER is for instance `struct passwd pw_gecos', shell
+dnl variables are not a valid argument.
+AC_DEFUN([CCTK_CHECK_MEMBER],
+[dnl Extract the aggregate name, and the member name
+ac_member_var=`echo $1['_']$2 | sed 'y% %_%'`
+AC_MSG_CHECKING([for $1.$2])
+AC_CACHE_VAL(ac_cv_member_$ac_member_var,
+[dnl
+AC_TRY_COMPILE([$5],
+[static $1 ac_aggr;
+if (ac_aggr.$2)
+return 0;],
+		eval "ac_cv_member_$ac_member_var=yes",
+		eval "ac_cv_member_$ac_member_var=no"dnl
+)
+if eval "test \"`echo '$''{'ac_cv_member_$ac_member_var'}'`\" = no"; then
+AC_TRY_COMPILE([$5],
+[static $1 ac_aggr;
+if (sizeof ac_aggr.$2)
+return 0;],
+		eval "ac_cv_member_$ac_member_var=yes",
+		eval "ac_cv_member_$ac_member_var=no"dnl
+)
+fi dnl
+])dnl
+if eval "test \"`echo '$ac_cv_member_'$ac_member_var`\" = yes"; then
+  AC_MSG_RESULT(yes)
+  ifelse([$3], ,
+[ac_tr_member=HAVE_MEMBER`echo $1 | sed -e 'y% %_%' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
+  AC_DEFINE_UNQUOTED($ac_tr_member)
+], [$3])
+else
+  AC_MSG_RESULT(no)
+ifelse([$4], , , [$4
+])dnl
+fi 
+])
+
+
 dnl A version of AC_TRY_COMPILER(TEST-PROGRAM, WORKING-VAR, CROSS-VAR) which,
 dnl if the TEST-PROGRAM could not be executed, does not throw away the stderr
 dnl but redirects it into the config.log logfile instead.