diff --git a/libffi/ChangeLog b/libffi/ChangeLog
index 16e463806f9..81b6b6e7f80 100644
--- a/libffi/ChangeLog
+++ b/libffi/ChangeLog
@@ -1,3 +1,10 @@
+2010-12-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* configure.ac (libffi_cv_as_ascii_pseudo_op): Use double
+	backslashes.
+	(libffi_cv_as_string_pseudo_op): Likewise.
+	* configure: Regenerate.
+
 2010-12-03  Chung-Lin Tang  <cltang@codesourcery.com>
 
 	* src/arm/sysv.S (ffi_closure_SYSV): Add UNWIND to .pad directive.
diff --git a/libffi/configure b/libffi/configure
index 05e58b0cc70..0db3728360a 100755
--- a/libffi/configure
+++ b/libffi/configure
@@ -12423,7 +12423,7 @@ else
        # Check if we have .ascii
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-asm (".ascii \"string\"");
+asm (".ascii \\"string\\"");
 int
 main ()
 {
@@ -12458,7 +12458,7 @@ else
        # Check if we have .string
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-asm (".string \"string\"");
+asm (".string \\"string\\"");
 int
 main ()
 {
diff --git a/libffi/configure.ac b/libffi/configure.ac
index ac48c8297de..f9bde00bd30 100644
--- a/libffi/configure.ac
+++ b/libffi/configure.ac
@@ -282,7 +282,7 @@ if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64
        libffi_cv_as_ascii_pseudo_op, [
        libffi_cv_as_ascii_pseudo_op=unknown
        # Check if we have .ascii
-       AC_TRY_COMPILE([asm (".ascii \"string\"");],,
+       AC_TRY_COMPILE([asm (".ascii \\"string\\"");],,
 		       [libffi_cv_as_ascii_pseudo_op=yes],
 		       [libffi_cv_as_ascii_pseudo_op=no])
     ])
@@ -295,7 +295,7 @@ if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64
        libffi_cv_as_string_pseudo_op, [
        libffi_cv_as_string_pseudo_op=unknown
        # Check if we have .string
-       AC_TRY_COMPILE([asm (".string \"string\"");],,
+       AC_TRY_COMPILE([asm (".string \\"string\\"");],,
 		       [libffi_cv_as_string_pseudo_op=yes],
 		       [libffi_cv_as_string_pseudo_op=no])
     ])