Initial checkin for VOLK - Vector-Optimized Library of Kernels. This is a new SIMD library.

It currently stands by itself under the GNU Radio tree and can be used separately. We will integrate the build process into GNU Raio and start building off of its functionality over time.

1 files changed, 36 insertions, 0 deletions

diff --git a/volk/config/gr_sysv_shm.m4 b/volk/config/gr_sysv_shm.m4
new file mode 100644
index 000000000..db5c8351e
--- /dev/null
+++ b/volk/config/gr_sysv_shm.m4
@@ -0,0 +1,36 @@
+# Check for IPC System V shm support.             -*- Autoconf -*-
+
+# Copyright 2003 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Boston, MA
+# 02110-1301, USA.
+
+AC_DEFUN([GR_SYSV_SHM],
+[
+	AC_LANG_SAVE
+	AC_LANG_C
+
+	AC_CHECK_HEADERS([sys/ipc.h sys/shm.h])
+
+        save_LIBS="$LIBS"
+	AC_SEARCH_LIBS(shmat, [cygipc ipc],
+	  [ IPC_LIBS="$LIBS" ],
+	  [ AC_MSG_WARN([SystemV IPC support not found. ]) ]
+	)
+        LIBS="$save_LIBS"
+
+	AC_LANG_RESTORE
+	AC_SUBST(IPC_LIBS)
+])