altos/stmf0: leave ao_power_gpio names undefined without power management

Should make it more obvious at compile time that you've done something wrong.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/stmf0/ao_arch_funcs.h b/src/stmf0/ao_arch_funcs.h
index 56a3bc75e0a38dfa84f6772609e49d23b2cc2179..96c033f9712ce379f481c43d4fe621e52f663e2d 100644 (file)
--- a/src/stmf0/ao_arch_funcs.h
+++ b/src/stmf0/ao_arch_funcs.h
@@ -171,10 +171,12 @@ ao_spi_try_get_mask(struct stm_gpio *reg, uint16_t mask, uint8_t bus, uint32_t s
 #define ao_spi_get_bit(reg,bit,pin,bus,speed) ao_spi_get_mask(reg,(1<<bit),bus,speed)
 #define ao_spi_put_bit(reg,bit,pin,bus) ao_spi_put_mask(reg,(1<<bit),bus)
 
+#if AO_POWER_MANAGEMENT
 extern struct ao_power ao_power_gpioa;
 extern struct ao_power ao_power_gpiob;
 extern struct ao_power ao_power_gpioc;
 extern struct ao_power ao_power_gpiof;
+#endif
 
 static inline void ao_enable_port(struct stm_gpio *port)
 {