diff --git a/src/image.cpp b/src/image.cpp
index a2d1bd56f..c977965ba 100644
--- a/src/image.cpp
+++ b/src/image.cpp
@@ -5,6 +5,7 @@
 
 #include "bgfx_p.h"
 #include <bx/float4_t.h>
+#include <math.h> // powf
 
 namespace bgfx
 {
diff --git a/tools/texturec/texturec.cpp b/tools/texturec/texturec.cpp
index 1f3189a04..229fe877d 100644
--- a/tools/texturec/texturec.cpp
+++ b/tools/texturec/texturec.cpp
@@ -31,7 +31,7 @@ namespace bgfx
 		return mem;
 	}
 
-	void saveTga(const char* _filePath, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src, bool _grayscale, bool _yflip)
+	void saveTga(const char* _filePath, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src, bool _grayscale = false, bool _yflip = false)
 	{
 		FILE* file = fopen(_filePath, "wb");
 		if ( NULL != file )