Changeset 2866 for box/trunk/configure.ac

Timestamp:

27/02/2011 23:33:01 (15 months ago)

Author:

chris

Message:

Fix build on solaris/gcc by checking whether -rdynamic is supported or not.

File:

• box/trunk/configure.ac (modified) (1 diff)

box/trunk/configure.ac

@@ -27 +27 @@
   AC_SUBST([CXXFLAGS_STRICT], ['-Wall -Wundef'])
 
-  # Use -rdynamic if we have gcc, but not mingw. This is needed for backtrace
-  case $target_os in
-    mingw*) ;;
-    *) AC_SUBST([LDADD_RDYNAMIC], ['-rdynamic']) ;;
-  esac
+  # Check whether gcc supports -rdynamic, thanks to Steve Ellcey
+  # [http://readlist.com/lists/gcc.gnu.org/gcc/6/31502.html]
+  # This is needed to get symbols in backtraces.
+  # Note that this apparently fails on HP-UX
+  LDFLAGS="$LDFLAGS -rdynamic"
+  AC_MSG_CHECKING([whether gcc accepts -rdynamic])
+  AC_TRY_LINK([], [return 0;],
+    [AC_MSG_RESULT([yes]); have_rdynamic=yes],
+    [AC_MSG_RESULT([no])])
+  if test x"$have_rdynamic" = x"yes" ; then
+    AC_SUBST([LDADD_RDYNAMIC], ['-rdynamic'])
+  fi
 fi