Update m4

[awesomized/libmemcached] / m4 / ax_vcs_checkout.m4

diff --git a/m4/ax_vcs_checkout.m4 b/m4/ax_vcs_checkout.m4
new file mode 100644 (file)
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+++ b/m4/ax_vcs_checkout.m4
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+# ===========================================================================
+#      http://
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_VCS_CHECKOUT
+#
+# DESCRIPTION
+#
+#   Discover whether or not we are operating with a tree which
+#   has been checked out of a version control system.
+#
+#
+# LICENSE
+#
+#  Copyright (C) 2012 Brian Aker
+#  All rights reserved.
+#  
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions are
+#  met:
+#  
+#      * Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#  
+#      * Redistributions in binary form must reproduce the above
+#  copyright notice, this list of conditions and the following disclaimer
+#  in the documentation and/or other materials provided with the
+#  distribution.
+#  
+#      * The names of its contributors may not be used to endorse or
+#  promote products derived from this software without specific prior
+#  written permission.
+#  
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#serial 1
+ 
+AC_DEFUN([AX_VCS_CHECKOUT],[
+    AC_CACHE_CHECK([for vcs checkout], [ac_cv_vcs_checkout], [
+      AS_IF([test -d ".bzr"],[ac_cv_vcs_checkout=yes])
+      AS_IF([test -d ".svn"],[ac_cv_vcs_checkout=yes])
+      AS_IF([test -d ".hg"], [ac_cv_vcs_checkout=yes])
+      AS_IF([test -d ".git"],[ac_cv_vcs_checkout=yes])
+      ])
+
+    AS_IF([test "$ac_cv_vcs_checkout" = yes], [])
+    ])