irmp: silence missing prototype compiler warning

The sigrok project enforces warnings when public routines of compile
units lack prototypes. Add a prototype for the irmp.c:print_spectrum()
routine to silence a compiler warning. An alternative would have been to
mark the routine as static (it's exclusively used within the same file).

diff --git a/irmp/irmp.c b/irmp/irmp.c
index c7a2fd9c2adadb69f9ea318cff35680841588c82..61711e5581e9680f16e271557a3c3816a4c6aef6 100644 (file)
--- a/irmp/irmp.c
+++ b/irmp/irmp.c
@@ -5554,6 +5554,7 @@ printf ("fm: %d %d\n", irmp_pulse_time * 1000000 / F_INTERRUPTS, RCII_BIT_LEN *
  *---------------------------------------------------------------------------------------------------------------------------------------------------
  */
 
+void print_spectrum (char * text, int * buf, int is_pulse);
 void
 print_spectrum (char * text, int * buf, int is_pulse)
 {