configure.ac: add option to compile in double precision

diff --git a/configure.ac b/configure.ac
index 7fb40c691e01bc0a776460a465a86c6a57abfe1a..318a24c441024fb27e33f0f01359a62c0e051d71 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -36,6 +36,16 @@ AC_PROG_INSTALL
 
 AUBIO_CFLAGS=
 
+dnl Enable double precision (no)
+AC_ARG_ENABLE(double,
+  AC_HELP_STRING([--enable-double],[compile in double precision [[default=no]]]),
+  with_double_precision="yes",
+  with_double_precision="no")
+if test "$with_double_precision" = "yes"
+then
+  AC_DEFINE(HAVE_AUBIO_DOUBLE,1,[Define to enable double precision])
+fi
+
 dnl Enable debugging (no)
 AC_ARG_ENABLE(debug,
   AC_HELP_STRING([--enable-debug],[compile in debug mode [[default=no]]]),