diff spandsp-0.0.6pre17/config/ax_fixed_point_machine.m4 @ 4:26cd8f1ef0b1

import spandsp-0.0.6pre17
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 25 Jun 2010 15:50:58 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/config/ax_fixed_point_machine.m4	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,35 @@
+# AX_FIXED_POINT_MACHINE(MACHINE, [ACTION-IF-FIXED-POINT], [ACTION-IF-NOT-FIXED-POINT])
+# -------------------------------------------------------------------------------------
+#
+# Check if a specified machine type is a fixed point only machine. That is, if it lacks
+# fast floating point support.
+#
+# This is a simple lookup amongst machines known to the current autotools. So far we deal
+# with the embedded ARM, Blackfin, MIPS, TI DSP and XScale processors as things which lack
+# fast hardware floating point.
+#
+# Other candidates would be the small embedded Power PCs.
+#
+AC_DEFUN([AX_FIXED_POINT_MACHINE],
+[AS_VAR_PUSHDEF([ac_FixedPoint], [ac_cv_fixed_point_machine_$1])dnl
+AC_CACHE_CHECK([if $1 is fixed point only], ac_FixedPoint,
+[case $1 in
+      arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] \
+    | bfin \
+    | mips | mipsbe | mipseb | mipsel | mipsle \
+    | tic54x | c54x* | tic55x | c55x* | tic6x | c6x* \
+    | xscale | xscalee[bl] \
+    | arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+    | bfin-* \
+    | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+    | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+    | xscale-* | xscalee[bl]-* )
+        AS_VAR_SET(ac_FixedPoint, yes)
+        ;;
+    *)
+        AS_VAR_SET(ac_FixedPoint, no)
+        ;;
+esac])
+AS_IF([test AS_VAR_GET(ac_FixedPoint) = yes], [$2], [$3])[]dnl
+AS_VAR_POPDEF([ac_FixedPoint])dnl
+])# AX_FIXED_POINT_MACHINE

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