From 1d2a45e348857f65cc7590b2e7f1b39c30216f92 Mon Sep 17 00:00:00 2001
From: Takamichi Horikawa <takamichiho@gmail.com>
Date: Sat, 6 Jan 2018 23:00:54 +0900
Subject: fixed compiler warnings for sdl

---
 common/fmplayer_file_unix.c | 1 +
 libopna/opna.c              | 1 +
 libopna/opnafm.c            | 5 +++++
 libopna/opnassg.c           | 3 +++
 sdl/main.c                  | 3 +++
 5 files changed, 13 insertions(+)

diff --git a/common/fmplayer_file_unix.c b/common/fmplayer_file_unix.c
index d6fb4ed..3360577 100644
--- a/common/fmplayer_file_unix.c
+++ b/common/fmplayer_file_unix.c
@@ -127,5 +127,6 @@ void *fmplayer_path_dup(const void *path) {
 }
 
 char *fmplayer_path_filename_sjis(const void *path) {
+  (void)path;
   return 0;
 }
diff --git a/libopna/opna.c b/libopna/opna.c
index 8998a59..5c87127 100644
--- a/libopna/opna.c
+++ b/libopna/opna.c
@@ -44,6 +44,7 @@ void opna_mix_oscillo(struct opna *opna, int16_t *buf, unsigned samples, struct
   struct oscillodata *oscillofm = oscillo ? &oscillo[0] : 0;
   struct oscillodata *oscillossg = oscillo ? &oscillo[6] : 0;
 #else
+  (void)oscillo;
   struct oscillodata *oscillofm = 0, *oscillossg = 0;
   unsigned offset = 0;
 #endif
diff --git a/libopna/opnafm.c b/libopna/opnafm.c
index dc19b6d..7555ef3 100644
--- a/libopna/opnafm.c
+++ b/libopna/opnafm.c
@@ -607,6 +607,7 @@ void opna_fm_writereg(struct opna_fm *fm, unsigned reg, unsigned val) {
   }
 }
 
+#ifdef LIBOPNA_ENABLE_OSCILLO
 static int gcd(int a, int b) {
   if (a < b) {
     int t = a;
@@ -621,6 +622,7 @@ static int gcd(int a, int b) {
   }
   return b;
 }
+#endif
 
 void opna_fm_mix(struct opna_fm *fm, int16_t *buf, unsigned samples,
                  struct oscillodata *oscillo, unsigned offset) {
@@ -646,6 +648,9 @@ void opna_fm_mix(struct opna_fm *fm, int16_t *buf, unsigned samples,
       }
     }
   }
+#else
+  (void)oscillo;
+  (void)offset;
 #endif
   unsigned level[6] = {0};
   for (unsigned i = 0; i < samples; i++) {
diff --git a/libopna/opnassg.c b/libopna/opnassg.c
index ee6498a..404be59 100644
--- a/libopna/opnassg.c
+++ b/libopna/opnassg.c
@@ -316,6 +316,9 @@ void opna_ssg_mix_55466(
       }
     }
   }
+#else
+  (void)oscillo;
+  (void)offset;
 #endif
   unsigned level[3] = {0};
   for (int i = 0; i < samples; i++) {
diff --git a/sdl/main.c b/sdl/main.c
index af877d8..004c8fb 100644
--- a/sdl/main.c
+++ b/sdl/main.c
@@ -41,6 +41,7 @@ static struct {
 };
 
 static void audiocb(void *ptr, Uint8 *bufptr, int len) {
+  (void)ptr;
   int frames = len / (sizeof(int16_t)*2);
   int16_t *buf = (int16_t *)bufptr;
   memset(buf, 0, len);
@@ -74,6 +75,8 @@ static void openfile(const char *path) {
 }
 
 int main(int argc, char **argv) {
+  (void)argc;
+  (void)argv;
   if (__builtin_cpu_supports("sse2")) opna_ssg_sinc_calc_func = opna_ssg_sinc_calc_sse2;
   fft_init_table();
   if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
-- 
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