More wireframing

configure.ac

@@ -1,6 +1,7 @@
-AC_INIT([The Harriman-Peikoff Project], [0.00],
-	[latentprion@gmail.com], [harikoff],
-	[github.com/latentprion/harikoff])
+AC_INIT([The Harriman-Peikoff Project],[0.00],[latentprion@gmail.com],[harikoff],[github.com/latentprion/harikoff])
+
+AC_DEFUN([TEST_IS_NUMBER], [`echo $1 | grep -c '^[0-9]\+$'` -gt 0])
+AC_DEFUN([TEST_NOT_NUMBER], [`echo $1 | grep -c '^[0-9]\+$'` -eq 0])
 
 # Safety checks in case user overwritten --srcdir
 AC_CONFIG_SRCDIR(core/main.cpp)
@@ -17,8 +18,23 @@ AM_INIT_AUTOMAKE([-Wall -Werror foreign])
 AC_PROG_CC
 AC_PROG_CXX
 
-AC_CONFIG_HEADERS([config.h])
 # AC_CHECK_HEADERS([stdio.h])
 
+#	AC_MSG_ERROR([You must set the number of sensors with num_sensors], 1))
+AS_IF([test "X$num_sensors" = "X"],
+	AC_MSG_ERROR([You must set num_sensors]))
+AS_IF([test `echo $num_sensors | grep -c '^[0-9]\+$'` -gt 0],
+	AC_MSG_ERROR([num_sensors must be an integer]))
+AS_IF([test $num_sensors -lt 1],
+	AC_MSG_ERROR([Harikoff needs at least 1 sensor]))
+
+num_sensors_desc="Number of sensors harikoff has direct purview over"
+AC_ARG_VAR([num_sensors],
+	AS_HELP_STRING([num_sensors=<n>],[$num_sensors_desc]))
+
+AC_DEFINE_UNQUOTED([CONFIG_NUM_SENSORS], [$num_sensors], [$num_sensors_desc])
+
+AC_CONFIG_HEADERS([config.h])
+
 AC_CONFIG_FILES([Makefile core/Makefile])
 AC_OUTPUT