Fix test building error

midi2c.c and example.c cannot be correctly compiled because header
stdint is not included.

Uncomment the LDLIBS line in the Makefile to correctly link the math
header, ensuring that picosynth can use the log and exp functions.

Author: jouae

.gitignore

@@ -2,6 +2,7 @@
 example
 output.wav
 melody.h
+tools/midi2c
 
 # Emscripten/WASM build outputs
 *.wasm

Makefile

@@ -1,6 +1,6 @@
 CC ?= gcc
 CFLAGS = -Wall -Wextra -Wconversion -I include -I .
-LDLIBS = # -lm
+LDLIBS = -lm
 
 SRCS = src/picosynth.c
 HDRS = include/picosynth.h

tests/example.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 
 #include "melody.h"
 #include "picosynth.h"

tools/midi2c.c

@@ -20,6 +20,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdint.h>
 
 #define MAX_NOTES 1024
 #define MAX_LINE 256