If none of the BUILD_ options is set, enable them all
@@ -73,6 +73,18 @@ endif
#
# Beginning of system configuration
#
+ifneq ($(BUILD_SINGLE),1)
+ifneq ($(BUILD_DOUBLE),1)
+ifneq ($(BUILD_COMPLEX),1)
+ifneq ($(BUILD_COMPLEX16),1)
+override BUILD_SINGLE=1
+override BUILD_DOUBLE=1
+override BUILD_COMPLEX=1
+override BUILD_COMPLEX16=1
+endif
+endif
+endif
+endif
ifndef HOSTCC
HOSTCC = $(CC)
