Enable compilation on Linux

native/platformio.ini

@@ -3,7 +3,7 @@ lib_deps =
 	https://github.com/Theldus/wsServer#476a67448c05ba2057bae43eaa6e704f8b2d6625
 	https://github.com/DaveGamble/cJSON#v1.7.17
 	https://github.com/gpakosz/uuid4
-	kuba2k2/libserialport@^2021.7.1
+	kuba2k2/libserialport@^2023.11.2
 extra_scripts = pre:extra_script.py
 
 [env:windows_x86]
@@ -15,3 +15,10 @@ build_flags =
 	-static
 	-D_WIN32_WINNT=0x0601
 	-Wl,-wrap,__mingw_vprintf
+
+[env:linux_x86_64]
+platform = linux_x86_64
+build_flags =
+	-lpthread
+	-static
+	-Dprintf=__wrap_printf

native/src/printf.c

@@ -13,3 +13,18 @@ int __wrap___mingw_vprintf(const char *format, va_list argv) {
 
 	return ret;
 }
+
+int __wrap_printf(const char *format, ...) {
+	va_list argv;
+	va_start(argv, format);
+	uint32_t len = vsnprintf(NULL, 0, format, argv);
+	va_end(argv);
+
+	char *buf = malloc(len + 1);
+	int ret	  = vsprintf(buf, format, argv);
+
+	stdmsg_send_log(buf);
+	free(buf);
+
+	return ret;
+}

native/src/serial.h

@@ -19,7 +19,7 @@ const char *serial_auth_grant(const char *port_name);
 void serial_auth_revoke(const char *port_name);
 
 char *serial_port_get_id(struct sp_port *port);
-void serial_port_fix_details(struct sp_port *port, const char *id);
+__attribute__((weak)) void serial_port_fix_details(struct sp_port *port, const char *id);
 
 serial_port_t *serial_get_by_auth(const char *auth_key);
 serial_port_t *serial_get_by_conn(ws_cli_conn_t *conn);

native/src/serial_linux.c

@@ -0,0 +1,15 @@
+/* Copyright (c) Kuba Szczodrzyński 2024-04-05. */
+
+#ifdef __linux__
+
+#define LIBSERIALPORT_ATBUILD
+#include "libserialport_internal.h"
+#undef DEBUG
+
+#include "serial.h"
+
+char *serial_port_get_id(struct sp_port *port) {
+	return port->name;
+}
+
+#endif