Change the approach for input so that its not included in every single build. Put it next to readline instead.

atmel-samd/Makefile

@@ -223,6 +223,7 @@ SRC_C = \
 	lib/utils/pyhelp.c \
 	lib/utils/stdout_helpers.c \
 	lib/libc/string0.c \
+	lib/mp-readline/builtin_input.c \
 	lib/mp-readline/readline.c
 
 STM_SRC_C = $(addprefix stmhal/,\

esp8266/Makefile

@@ -167,6 +167,7 @@ LIB_SRC_C = $(addprefix lib/,\
 	libm/asinfacosf.c \
 	libm/atanf.c \
 	libm/atan2f.c \
+	mp-readline/builtin_input.c \
 	mp-readline/readline.c \
 	netutils/netutils.c \
 	timeutils/timeutils.c \

py/py.mk

@@ -188,7 +188,6 @@ PY_O_BASENAME = \
 	stream.o \
 	binary.o \
 	builtinimport.o \
-	builtininput.o \
 	builtinevex.o \
 	modarray.o \
 	modbuiltins.o \

stmhal/Makefile

@@ -108,6 +108,7 @@ SRC_LIB = $(addprefix lib/,\
 	libm/wf_tgamma.c \
 	fatfs/ff.c \
 	fatfs/option/ccsbcs.c \
+	mp-readline/builtin_input.c \
 	mp-readline/readline.c \
 	netutils/netutils.c \
 	timeutils/timeutils.c \

teensy/Makefile

@@ -106,6 +106,7 @@ STM_SRC_S = $(addprefix stmhal/,\
 
 LIB_SRC_C = $(addprefix lib/,\
 	libc/string0.c \
+	mp-readline/builtin_input.c \
 	mp-readline/readline.c \
 	utils/pyexec.c \
 	utils/pyhelp.c \