[SCM] GNU Autoconf source repository branch, master, updated. v2.63-53-g2535dcc

[Paolo Bonzini]

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- Log -----------------------------------------------------------------
commit 2535dcc192d86c46478463049b2acb39f4856413
Author: Paolo Bonzini <address@hidden>
Date:   Thu Oct 16 10:41:20 2008 +0200

    Add a testcase using more then one language.
    
    * tests/compile.at (Multiple languages): New test.

commit a38c243f00eb482729fa21fb8e9f1dc9580512e0
Author: Paolo Bonzini <address@hidden>
Date:   Thu Oct 16 08:19:15 2008 +0200

    Fix Libtool's config.lt test.
    
    * lib/m4sugar/m4sh.m4 (_AS_PREPARE): Disable AS_REQUIRE while
    expanding it.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog           |   11 +++++++++++
 lib/m4sugar/m4sh.m4 |    4 +++-
 tests/compile.at    |   38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 52 insertions(+), 1 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index e627d14..8eef61d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2008-10-16  Paolo Bonzini  <address@hidden>
+
+       Add a testcase using more then one language.
+       * tests/compile.at (Multiple languages): New test.
+
+2008-10-16  Paolo Bonzini  <address@hidden>
+
+       Fix Libtool's config.lt test.
+       * lib/m4sugar/m4sh.m4 (_AS_PREPARE): Disable AS_REQUIRE while
+       expanding it.
+
 2008-10-15  Eric Blake  <address@hidden>
 
        Break circular require chain in _AS_LINENO_PREPARE.
diff --git a/lib/m4sugar/m4sh.m4 b/lib/m4sugar/m4sh.m4
index 44c8049..5e6245d 100644
--- a/lib/m4sugar/m4sh.m4
+++ b/lib/m4sugar/m4sh.m4
@@ -257,7 +257,8 @@ fi
 # there are so many _AS_PREPARE_* below, and that's also why it is
 # important not to forget some: config.status needs them.
 m4_defun([_AS_PREPARE],
-[as_func_mkdir_p ()
+[m4_pushdef([AS_REQUIRE], [])dnl
+as_func_mkdir_p ()
 {
   _AS_MKDIR_P
 }
@@ -274,6 +275,7 @@ _AS_TEST_PREPARE
 _AS_TR_CPP_PREPARE
 _AS_TR_SH_PREPARE
 _AS_UNSET_PREPARE
+m4_popdef([AS_REQUIRE])dnl
 ])
 
 # AS_PREPARE
diff --git a/tests/compile.at b/tests/compile.at
index 715fde8..6ee22ae 100644
--- a/tests/compile.at
+++ b/tests/compile.at
@@ -150,3 +150,41 @@ AT_CHECK_MACRO([AC_TRY_LINK_FUNC],
                  [AC_MSG_ERROR([cannot find `printf'])])
 AC_TRY_LINK_FUNC(Be_doomed_if_your_libc_has_a_function_named_like_this,
                 [AC_MSG_ERROR([found a nonexistent function])])])
+
+## -------------------- ##
+## Multiple languages.  ##
+## -------------------- ##
+
+AT_SETUP([Multiple languages])
+
+AT_DATA([configure.ac],
+[[AC_INIT
+
+AC_PROG_CC
+AC_PROG_CXX
+
+AC_LANG_PUSH(C)
+AC_MSG_CHECKING([a simple C program that is not valid C++])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([enum a { A, B, C };
+                                   enum a f(enum a in) { return in++; }], [])],
+                 [AC_MSG_RESULT([ok])],
+                 [AC_MSG_RESULT([failed])
+                  AC_MSG_ERROR([could not compile test program])])
+AC_LANG_POP(C)
+
+AC_LANG_PUSH(C++)
+AC_MSG_CHECKING([a simple C++ program that is not valid C])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([class A {};], [])],
+                 [AC_MSG_RESULT([ok])],
+                 [AC_MSG_RESULT([failed])
+                  AC_MSG_ERROR([could not compile test program])])
+
+AC_CHECK_HEADER([cstring])
+AC_LANG_POP(C++)
+]])
+
+AT_CHECK_AUTOCONF
+AT_CHECK_CONFIGURE([-q])
+
+AT_CLEANUP
+


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