1 files changed, 61 insertions, 0 deletions
diff --git a/volk/config/orc.m4 b/volk/config/orc.m4
new file mode 100644
index 000000000..a4653400c
--- /dev/null
+++ b/volk/config/orc.m4
@@ -0,0 +1,61 @@
+dnl pkg-config-based checks for Orc
+
+dnl specific:
+dnl ORC_CHECK([REQUIRED_VERSION])
+
+AC_DEFUN([ORC_CHECK],
+[
+  ORC_REQ=ifelse([$1], , "0.4.10", [$1])
+  
+  enable_orc = auto
+  if test "x$enable_orc" != "xno" ; then
+    PKG_CHECK_MODULES(ORC, orc-0.4 >= $ORC_REQ, [
+      AC_DEFINE(HAVE_ORC, 1, [Use Orc])
+      if test "x$ORCC" = "x" ; then
+        ORCC=`$PKG_CONFIG --variable=orcc orc-0.4`
+      fi
+      AC_SUBST(ORCC)
+      ORCC_FLAGS="--compat $ORC_REQ"
+      ORC_LDFLAGS=`$PKG_CONFIG --libs orc-0.4`
+      ORC_CFLAGS=`$PKG_CONFIG --cflags orc-0.4`
+      AC_SUBST(ORCC_FLAGS)
+      AC_SUBST(ORC_LDFLAGS)
+      AC_SUBST(ORC_CFLAGS)
+      HAVE_ORC=yes
+      HAVE_ORCC=yes
+      if test "x$cross_compiling" = "xyes" ; then
+        HAVE_ORCC=no
+      fi
+    ], [
+      if test "x$enable_orc" = "xyes" ; then
+        AC_MSG_ERROR([--enable-orc specified, but Orc >= $ORC_REQ not found])
+      fi
+      AC_DEFINE(DISABLE_ORC, 1, [Disable Orc])
+      HAVE_ORC=no
+      HAVE_ORCC=no
+    ])
+  else
+    AC_DEFINE(DISABLE_ORC, 1, [Disable Orc])
+    HAVE_ORC=no
+    HAVE_ORCC=no
+  fi
+  AM_CONDITIONAL(HAVE_ORC, [test "x$HAVE_ORC" = "xyes"])
+  AM_CONDITIONAL(HAVE_ORCC, [test "x$HAVE_ORCC" = "xyes"])
+
+]))
+
+AC_DEFUN([ORC_OUTPUT],
+[
+  if test "$HAVE_ORC" = yes ; then
+    printf "configure: *** Orc acceleration enabled.\n"
+  else
+    if test "x$enable_orc" = "xno" ; then
+      printf "configure: *** Orc acceleration disabled by --disable-orc.\n"
+    else
+      printf "configure: *** Orc acceleration disabled.  Requires Orc >= $ORC_REQ, which was\n"
+      printf "               not found.\n"
+    fi
+  fi
+  printf "\n"
+])
+