Suppressing 'warning: unused parameter ... [-Wunused-parameter]'

STM32F1/cores/maple/libmaple/adc_f1.c

@@ -203,7 +203,7 @@ void adc_foreach(void (*fn)(adc_dev*)) {
 #endif
 }
 
-void adc_config_gpio(adc_dev *ignored, gpio_dev *gdev, uint8 bit) {
+void adc_config_gpio(adc_dev *ignored __attribute__((unused)), gpio_dev *gdev, uint8 bit) {
     gpio_set_mode(gdev, bit, GPIO_INPUT_ANALOG);
 }
 

STM32F1/cores/maple/libmaple/spi_f1.c

@@ -54,7 +54,7 @@ spi_dev *SPI3 = &spi3;
  * Routines
  */
 
-void spi_config_gpios(spi_dev *ignored,
+void spi_config_gpios(spi_dev *ignored __attribute__((unused)),
                       uint8 as_master,
                       gpio_dev *nss_dev,
                       uint8 nss_bit,

STM32F1/cores/maple/libmaple/timer.c

@@ -327,7 +327,7 @@ static void output_compare_mode(timer_dev *dev, uint8 channel) {
 }
 
 //added by CARLOS.
-static void encoder_mode(timer_dev *dev, uint8 channel) {
+static void encoder_mode(timer_dev *dev, uint8 channel __attribute__((unused))) {
     
     //prescaler. 
     //(dev->regs).gen->PSC = 1;

STM32F1/cores/maple/libmaple/util.c

@@ -88,7 +88,7 @@ void _fail(const char* file, int line, const char* exp) {
  * Provide an __assert_func handler to libc so that calls to assert()
  * get redirected to _fail.
  */
-void __assert_func(const char* file, int line, const char* method,
+void __assert_func(const char* file, int line, const char* method __attribute__((unused)),
                    const char* expression) {
     _fail(file, line, expression);
 }

STM32F1/cores/maple/stm32f1/wiring_pulse_f1.cpp

@@ -26,7 +26,7 @@
   * to be slighly more accurate the maxLoops variable really needs to take into account the loop setup code, but its probably as good as necessary
   *
   */
-uint32_t pulseIn( uint32_t pin, uint32_t state, uint32_t timeout )
+uint32_t pulseIn( uint32_t pin, uint32_t state __attribute__((unused)), uint32_t timeout )
 {
    // cache the port and bit of the pin in order to speed up the
    // pulse width measuring loop and achieve finer resolution.  calling

STM32F1/cores/maple/usb_serial.cpp

@@ -236,7 +236,7 @@ enum reset_state_t {
 
 static reset_state_t reset_state = DTR_UNSET;
 
-static void ifaceSetupHook(unsigned hook, void *requestvp) {
+static void ifaceSetupHook(unsigned hook __attribute__((unused)), void *requestvp) {
     uint8 request = *(uint8*)requestvp;
 
     // Ignore requests we're not interested in.
@@ -290,7 +290,7 @@ static void wait_reset(void) {
 #define STACK_TOP 0x20000800
 #define EXC_RETURN 0xFFFFFFF9
 #define DEFAULT_CPSR 0x61000000
-static void rxHook(unsigned hook, void *ignored) {
+static void rxHook(unsigned hook __attribute__((unused)), void *ignored __attribute__((unused))) {
     /* FIXME this is mad buggy; we need a new reset sequence. E.g. NAK
      * after each RX means you can't reset if any bytes are waiting. */
     if (reset_state == DTR_NEGEDGE) {

STM32F1/libraries/Wire/WireBase.cpp

@@ -41,7 +41,7 @@
 #include "WireBase.h"
 #include "wirish.h"
 
-void WireBase::begin(uint8 self_addr) {
+void WireBase::begin(uint8 self_addr __attribute__((unused))) {
     tx_buf_idx = 0;
     tx_buf_overflow = false;
     rx_buf_idx = 0;

STM32F1/system/libmaple/stm32f1/include/series/i2c.h

@@ -59,7 +59,7 @@ extern i2c_dev* const I2C2;
  * For internal use
  */
 
-static inline uint32 _i2c_bus_clk(i2c_dev *dev) {
+static inline uint32 _i2c_bus_clk(i2c_dev *dev __attribute__((unused))) {
     /* Both I2C peripherals are on APB1 */
     return STM32_PCLK1 / (1000 * 1000);
 }

STM32F1/variants/STM32VLD/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/generic_gd32f103c/wirish/syscalls.c

@@ -76,15 +76,15 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
@@ -97,7 +97,7 @@ __weak int isatty(int fd) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/generic_stm32f103c/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/generic_stm32f103r8/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/generic_stm32f103t/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/generic_stm32f103v/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/generic_stm32f103z/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/hytiny_stm32f103t/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/maple/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/maple_mini/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/maple_ret6/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/microduino/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }

STM32F1/variants/nucleo_f103rb/wirish/syscalls.c

@@ -76,28 +76,28 @@ void *_sbrk(int incr) {
     return ret;
 }
 
-__weak int _open(const char *path, int flags, ...) {
+__weak int _open(const char *path __attribute__((unused)), int flags __attribute__((unused)), ...) {
     return 1;
 }
 
-__weak int _close(int fd) {
+__weak int _close(int fd __attribute__((unused))) {
     return 0;
 }
 
-__weak int _fstat(int fd, struct stat *st) {
+__weak int _fstat(int fd __attribute__((unused)), struct stat *st) {
     st->st_mode = S_IFCHR;
     return 0;
 }
 
-__weak int _isatty(int fd) {
+__weak int _isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int isatty(int fd) {
+__weak int isatty(int fd __attribute__((unused))) {
     return 1;
 }
 
-__weak int _lseek(int fd, off_t pos, int whence) {
+__weak int _lseek(int fd __attribute__((unused)), off_t pos __attribute__((unused)), int whence __attribute__((unused))) {
     return -1;
 }
 
@@ -106,13 +106,13 @@ __weak unsigned char getch(void) {
 }
 
 
-__weak int _read(int fd, char *buf, size_t cnt) {
+__weak int _read(int fd __attribute__((unused)), char *buf, size_t cnt __attribute__((unused))) {
     *buf = getch();
 
     return 1;
 }
 
-__weak void putch(unsigned char c) {
+__weak void putch(unsigned char c __attribute__((unused))) {
 }
 
 __weak void cgets(char *s, int bufsize) {
@@ -155,7 +155,7 @@ __weak void cgets(char *s, int bufsize) {
     return;
 }
 
-__weak int _write(int fd, const char *buf, size_t cnt) {
+__weak int _write(int fd __attribute__((unused)), const char *buf, size_t cnt) {
     int i;
 
     for (i = 0; i < cnt; i++)
@@ -165,12 +165,12 @@ __weak int _write(int fd, const char *buf, size_t cnt) {
 }
 
 /* Override fgets() in newlib with a version that does line editing */
-__weak char *fgets(char *s, int bufsize, void *f) {
+__weak char *fgets(char *s, int bufsize, void *f __attribute__((unused))) {
     cgets(s, bufsize);
     return s;
 }
 
-__weak void _exit(int exitcode) {
+__weak void _exit(int exitcode __attribute__((unused))) {
     while (1)
         ;
 }