Remove compiler warnings

7 files changed, 11 insertions, 11 deletions

diff --git a/avr/Makefile b/avr/Makefile
index eab1d1f..c392e43 100644
--- a/avr/Makefile
+++ b/avr/Makefile
@@ -45,9 +45,10 @@ CINCS := -I../include
 
 OPT = s
 CSTANDARD = -std=gnu11
-CDEBUG =
+CDEBUG = -g
 CWARN = -Wall -Wextra -Wstrict-prototypes -Wredundant-decls
-CTUNING = -funsigned-char -fshort-enums -funsigned-bitfields -fpack-struct
+CTUNING = -fshort-enums -funsigned-bitfields -fpack-struct
+#CTUNING += -funsigned-char
 CTUNING += -mrelax -fno-common
 CTUNING += -fno-move-loop-invariants
 CTUNING += -fno-tree-loop-optimize
diff --git a/avr/cli_readline.c b/avr/cli_readline.c
index d4c2c92..0ed8f67 100644
--- a/avr/cli_readline.c
+++ b/avr/cli_readline.c
@@ -134,7 +134,7 @@ int vt_parse (void)
 	static vtparse_state_t state = STATE_GROUND;
 	char	buf[CHB_SIZE+1];
 	uint8_t param[2];
-	uint8_t i_buf;
+	uint8_t i_buf = 0;
 	uint8_t i_param;
 	int  ch;
 
diff --git a/avr/cmd_boot.c b/avr/cmd_boot.c
index dcf834d..036a041 100644
--- a/avr/cmd_boot.c
+++ b/avr/cmd_boot.c
@@ -100,7 +100,6 @@ command_ret_t do_bootcf(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int a
 	int_fast8_t verbosity = 0;
 	uint8_t default_stages;
 	uint32_t val;
-	ERRNUM res = ESUCCESS;
 
 	/* get default values */
 	memcpy_P(&boot_param, cfboot, sizeof boot_param);
diff --git a/avr/cmd_cpu.c b/avr/cmd_cpu.c
index fd72b21..e5158fd 100644
--- a/avr/cmd_cpu.c
+++ b/avr/cmd_cpu.c
@@ -405,7 +405,7 @@ static const FLASH char * const FLASH cpu_strings[] = {
 
 command_ret_t do_cpuchk(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
 {
-	uint_fast8_t cputype;
+	uint_fast8_t cputype = 0;
 	ERRNUM err = ESUCCESS;
 	uint8_t ram_save[cpuinfo_length];
 
@@ -490,7 +490,7 @@ command_ret_t do_cpu_test(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int
 
 command_ret_t do_bus_test(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
 {
-	char ch;
+	int ch;
 
 #if 0
 	int opt;
@@ -655,7 +655,7 @@ command_ret_t do_cpu_freq(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int
 		}
 	} while ((Stat & S_IO_0X40) == 0);
 
-	uint32_t cpu_freq;
+	uint32_t cpu_freq = 0;
 	if (!err)
 		cpu_freq = z80_measure_phi(lcycles);
 
diff --git a/avr/env.c b/avr/env.c
index 8896004..671d1c4 100644
--- a/avr/env.c
+++ b/avr/env.c
@@ -716,8 +716,8 @@ command_ret_t do_env_print(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED,
 
 	/* print selected env vars */
 	while (optind < argc) {
-		int rc = env_print(argv[optind], mode);
-		if (rc < 0) {
+		int len = env_print(argv[optind], mode);
+		if (len < 0) {
 			printf_P(PSTR("## Error: \"%s\" not defined\n"), argv[optind]);
 			rc = CMD_RET_FAILURE;
 		}
diff --git a/avr/z180-serv.c b/avr/z180-serv.c
index cdc6e5e..f99a11e 100644
--- a/avr/z180-serv.c
+++ b/avr/z180-serv.c
@@ -417,7 +417,7 @@ void msg_cpm_result(uint8_t subf, uint8_t rc, int res)
 	msg_xmit(2, subf, sizeof(result_msg), result_msg);
 
 	if (rc) {
-#if GCC_BUG_61443
+#if defined(GCC_BUG_61443)
 		char msg[40];
 		strncpy_P(msg, rc_messages[rc & 0x7f], sizeof msg -1);
 		drv_debug(END, PSTR(" rc: %.02x/%d, '%s'"),
diff --git a/include/spi.h b/include/spi.h
index 4638476..9dac375 100644
--- a/include/spi.h
+++ b/include/spi.h
@@ -32,7 +32,7 @@
 
 #define SPI_OFF()				do { SPCR = 0; } while(0)
 
-static inline __attribute__((always_inline)) void spi_wait() {
+static inline __attribute__((always_inline)) void spi_wait(void) {
 	loop_until_bit_is_set(SPSR,SPIF);
 }