docs

[pspp] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index c1c67119aad1f12f759a0648df7edeaea9960bf3..98864ea5bc2bfbc2dbc5e6e5fd12cce78449eac2 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -32,7 +32,7 @@ AC_DEFUN([PSPP_PERL],
   AC_PATH_PROG([PERL], perl, no)
   AC_SUBST([PERL])dnl
   if test "$PERL" != no && $PERL -e 'require 5.005_03;'; then :; else
-    PSPP_REQUIRED_PREREQ([Perl 5.005_03 (or later)])
+    PSPP_OPTIONAL_PREREQ([Perl 5.005_03 (or later)])
   fi
 
   # The PSPP autobuilder appends a build number to the PSPP version number,
@@ -43,10 +43,53 @@ 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 CHECK_PERL_MODULE([MODULE], [RUN-IF-AVAILABLE], [RUN-IF-NOT-AVAILABLE])
+AC_DEFUN([CHECK_PERL_MODULE],
+  [echo "configure:__oline__: running $PERL -M$1 -e '' >&AS_MESSAGE_LOG_FD" >&AS_MESSAGE_LOG_FD
+   $PERL -M$1 -e '' >&AS_MESSAGE_LOG_FD 2>&1
+   retval=$?
+   echo "configure:__oline__: \$? = $retval" >&AS_MESSAGE_LOG_FD
+   AS_IF([test $retval = 0], [$2], [$3])])
+
+AC_DEFUN([PSPP_PERL_MODULE],
+  [AC_ARG_WITH(
+     [perl-module],
+     [AS_HELP_STRING([--without-perl-module], [do not build the Perl module])],
+     [AS_CASE([$with_perl_module],
+       [yes|no], [],
+       [AC_MSG_FAILURE([--with-perl-module argument must be 'yes' or 'no'])])
+      WITH_PERL_MODULE=$with_perl_module],
+     [if test "$PERL" != no && test x"$cross_compiling" != x"yes"; then
+       WITH_PERL_MODULE=yes
+      else
+       WITH_PERL_MODULE=no
+      fi])
+   AC_SUBST([WITH_PERL_MODULE])
+   AM_CONDITIONAL(WITH_PERL_MODULE, test $WITH_PERL_MODULE = yes)
+
+   if test $WITH_PERL_MODULE = yes; then
+     if test "$PERL" = no; then
+       PSPP_REQUIRED_PREREQ([Perl 5.005_03 or later (or use --without-perl-module)])
+     fi
+     CHECK_PERL_MODULE([Config::Perl::V], [],
+       [PSPP_REQUIRED_PREREQ([Config::Perl::V Perl module (or use --without-perl-module)])])
+     CHECK_PERL_MODULE([Text::Diff], [],
+       [PSPP_OPTIONAL_PREREQ([Text::Diff Perl module for running Perl tests])])
+     CHECK_PERL_MODULE([Memory::Usage], [],
+       [PSPP_OPTIONAL_PREREQ([Memory::Usage Perl module for running Perl tests])])
+   fi])
+
+dnl Check that Python 3 is available.
+AC_DEFUN([PSPP_PYTHON3],
+  [AC_ARG_VAR([PYTHON3], [Python 3 interpreter])
+   AC_CHECK_PROGS([PYTHON3], [python3 python], [none])
+   if test "$PYTHON3" != no && $PYTHON3 -c '
+import sys
+sys.exit(0 if sys.version_info >= (3,4) else 1)
+'; then :; else
+     PSPP_REQUIRED_PREREQ([Python 3.4 (or later)])
+   fi
+  ])
 
 dnl PSPP_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED])
 dnl Check whether the given C compiler OPTION is accepted.
@@ -66,6 +109,30 @@ AC_DEFUN([PSPP_CHECK_CC_OPTION],
   fi
 ])
 
+# PSPP_ENABLE_OPTION comes from Open vSwitch:
+# ----------------------------------------------------------------------
+# Copyright (c) 2007-2017 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 PSPP_ENABLE_OPTION([OPTION])
+dnl Check whether the given C compiler OPTION is accepted.
+dnl If so, add it to WARNING_FLAGS.
+dnl Example: PSPP_ENABLE_OPTION([-Wdeclaration-after-statement])
+AC_DEFUN([PSPP_ENABLE_OPTION],
+  [PSPP_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"])
+   AC_SUBST([WARNING_FLAGS])])
+# ----------------------------------------------------------------------
+
 dnl Check for readline and history libraries.
 
 dnl Modified for PSPP, based on readline.m4 serial 3 from