From 0bfe054e0e93cf0c0a19f63eb2cfb6b4afd88ef7 Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbaren@mit.edu>
Date: Fri, 3 Jul 2015 15:52:18 -0400
Subject: Initial commit of the regex matcher
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Wrap glibc’s regex engine to allow matching and group capture in POSIX
extended regular expressions.

It might be worth rewriting this in terms of the C++11 regex engine;
it’s more featureful and more pleasant to use, although it would require
more casting.  (C can’t represent the std::regex type, so I’d need to
use some void pointers.)
---
 configure.ac | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 configure.ac

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..a9c1c74
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,48 @@
+# Copyright 2015 the Massachusetts Institute of Technology
+#
+# 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.
+
+AC_INIT([urweb-regex], [1.0.0], [bbaren@mit.edu])
+AM_INIT_AUTOMAKE([no-dist-gzip dist-xz foreign subdir-objects])
+LT_INIT
+
+AC_CONFIG_MACRO_DIR([m4])
+
+AC_CONFIG_SRCDIR([config.h.in])
+AC_CONFIG_HEADERS([config.h])
+
+AC_PROG_CXX([clang++])
+AX_CXX_COMPILE_STDCXX_11([noext], [mandatory])
+
+AC_CHECK_HEADERS([regex.h],
+  [],
+  [AC_MSG_FAILURE([a POSIX-compatible regex.h is required])])
+
+AC_CHECK_HEADERS([urweb/urweb_cpp.h],
+  [],
+  [AC_MSG_FAILURE([Ur/Web headers are required])])
+save_LIBS=$LIBS
+LIBS="$LIBS -lurweb"
+AC_LINK_IFELSE([AC_LANG_CALL(
+                  [int uw_init_client_data;
+                   int uw_copy_client_data;
+                   int uw_global_custom;
+                   int uw_do_expunge;
+                   int uw_post_expunge;
+                   int uw_free_client_data;],
+                  [uw_error])],
+  [],
+  [AC_MSG_FAILURE([could not link with -lurweb])])
+LIBS=$save_LIBS
+
+AC_OUTPUT([Makefile])
-- 
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