X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=acinclude.m4;h=e6c1adbf3d0c92302dc833549c0e27ff5d4c543b;hb=984d77a666f94bad8ebdc39b44d9e8de19a11f55;hp=244a7468486648851e315be8c06fd1dec42f1627;hpb=0d2f7b51f72f3f2f830a720e0dd71096e0290c72;p=pspp

diff --git a/acinclude.m4 b/acinclude.m4
index 244a746848..e6c1adbf3d 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1,4 +1,4 @@
-dnl Copyright (C) 2005, 2006, 2007, 2009, 2014 Free Software Foundation, Inc.
+dnl Copyright (C) 2005, 2006, 2007, 2009, 2014, 2015 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -43,6 +43,11 @@ AC_DEFUN([PSPP_PERL],
   AC_SUBST([VERSION_FOR_PERL])
 ])
 
+dnl Check that Python 2 or 3 is available.
+AC_DEFUN([PSPP_PYTHON],
+  [AC_ARG_VAR([PYTHON], [Python 2 or 3 interpreter])
+   AC_CHECK_PROGS([PYTHON], [python python2 python3], [none])])
+
 dnl PSPP_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED])
 dnl Check whether the given C compiler OPTION is accepted.
 dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED.
@@ -61,13 +66,6 @@ AC_DEFUN([PSPP_CHECK_CC_OPTION],
   fi
 ])
 
-dnl PSPP_ENABLE_OPTION([OPTION])
-dnl Check whether the given C compiler OPTION is accepted.
-dnl If so, add it to CFLAGS.
-dnl Example: PSPP_ENABLE_OPTION([-Wdeclaration-after-statement])
-AC_DEFUN([PSPP_ENABLE_OPTION], 
-  [PSPP_CHECK_CC_OPTION([$1], [CFLAGS="$CFLAGS $1"])])
-
 dnl Check for readline and history libraries.
 
 dnl Modified for PSPP, based on readline.m4 serial 3 from
@@ -307,6 +305,34 @@ AC_DEFUN([PSPP_ENABLE_WERROR],
      [], [enable_Werror=no])
    AC_CONFIG_COMMANDS_PRE(
      [if test "X$enable_Werror" = Xyes; then
-        CFLAGS="$CFLAGS -Werror"
+        CFLAGS="$CFLAGS -Werror -Wno-error=deprecated-declarations"
       fi])])
 
+# The following comes from Open vSwitch:
+# ----------------------------------------------------------------------
+# Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+dnl Checks for dot.
+AC_DEFUN([PSPP_CHECK_DOT],
+  [AC_CACHE_CHECK(
+    [for dot],
+    [pspp_cv_dot],
+    [dnl "dot" writes -V output to stderr:
+     if (dot -V) 2>&1 | grep '^dot - [[gG]]raphviz version' >/dev/null 2>&1; then
+       pspp_cv_dot=yes
+     else
+       pspp_cv_dot=no
+     fi])
+   AM_CONDITIONAL([HAVE_DOT], [test "$pspp_cv_dot" = yes])])