Ken Thomases : configure: Warn for a 64-bit build without CFI directive support.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8c60dc0706c8f7674b2bf0106555bc44ac971ae0
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=8c60dc0706c8f7674b2bf0106555bc44ac971ae0

Author: Ken Thomases <ken at codeweavers.com>
Date:   Thu Jun  4 13:57:59 2015 -0500

configure: Warn for a 64-bit build without CFI directive support.

---

 configure    | 4 ++++
 configure.ac | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/configure b/configure
index f47c09e..279c3bc 100755
--- a/configure
+++ b/configure
@@ -14649,6 +14649,10 @@ $as_echo "#define __ASM_CFI(str) str" >>confdefs.h
 else
    $as_echo "#define __ASM_CFI(str) \"\"" >>confdefs.h
 
+   if test "x$enable_win64" = "xyes"
+   then
+      as_fn_append wine_warnings "|building 64-bit Wine without support for CFI directives; exception handling will not work properly."
+   fi
 fi
 
 asm_func_code="$asm_func_header\" code \"$asm_func_trailer"
diff --git a/configure.ac b/configure.ac
index c61a975..9b25196 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1987,6 +1987,10 @@ then
    AC_SUBST([UNWINDFLAGS],[-fasynchronous-unwind-tables])
 else
    AC_DEFINE([__ASM_CFI(str)],[""])
+   if test "x$enable_win64" = "xyes"
+   then
+      WINE_WARNING([building 64-bit Wine without support for CFI directives; exception handling will not work properly.])
+   fi
 fi
 
 asm_func_code="$asm_func_header\" code \"$asm_func_trailer"