diff --git a/qse/include/qse/types.h b/qse/include/qse/types.h
index 1d76c90d..7b1092c9 100644
--- a/qse/include/qse/types.h
+++ b/qse/include/qse/types.h
@@ -239,7 +239,7 @@ typedef enum qse_bool_t qse_bool_t;
 	typedef __uint16_t qse_uint16_t;
 #endif
 
-#ifdef QSE_HAVE_INT16_T
+#if defined(QSE_HAVE_INT16_T)
 #	define QSE_SIZEOF_INT16_T 2
 #	define QSE_SIZEOF_UINT16_T 2
 #	undef  QSE_SIZEOF_INTMAX_T
@@ -279,7 +279,7 @@ typedef enum qse_bool_t qse_bool_t;
 	typedef __uint32_t qse_uint32_t;
 #endif
 
-#ifdef QSE_HAVE_INT32_T
+#if defined(QSE_HAVE_INT32_T)
 #	define QSE_SIZEOF_INT32_T 4
 #	define QSE_SIZEOF_UINT32_T 4
 #	undef  QSE_SIZEOF_INTMAX_T
@@ -324,7 +324,7 @@ typedef enum qse_bool_t qse_bool_t;
 	typedef __uint64_t qse_uint64_t;
 #endif
 
-#ifdef QSE_HAVE_INT64_T
+#if defined(QSE_HAVE_INT64_T)
 #	define QSE_SIZEOF_INT64_T 8
 #	define QSE_SIZEOF_UINT64_T 8
 #	undef  QSE_SIZEOF_INTMAX_T
@@ -363,7 +363,7 @@ typedef enum qse_bool_t qse_bool_t;
 	typedef __uint128_t qse_uint128_t;
 #endif
 
-#ifdef QSE_HAVE_INT128_T
+#if defined(QSE_HAVE_INT128_T)
 #	define QSE_SIZEOF_INT128_T 16
 #	define QSE_SIZEOF_UINT128_T 16
 #	undef  QSE_SIZEOF_INTMAX_T
diff --git a/qse/lib/awk/mod-math.c b/qse/lib/awk/mod-math.c
index 9ed2a09d..74742933 100644
--- a/qse/lib/awk/mod-math.c
+++ b/qse/lib/awk/mod-math.c
@@ -359,7 +359,7 @@ static qse_awk_flt_t math_atan2 (qse_awk_t* awk, qse_awk_flt_t x, qse_awk_flt_t
 #endif
 }
 
-static qse_awk_flt_t math_log (qse_awk_t* awk, qse_awk_flt_t x)
+static QSE_INLINE qse_awk_flt_t math_log (qse_awk_t* awk, qse_awk_flt_t x)
 {
 #if defined(QSE_USE_AWK_FLTMAX) && defined(HAVE_LOGQ)
 	return logq (x);
@@ -385,7 +385,7 @@ static qse_awk_flt_t math_log2 (qse_awk_t* awk, qse_awk_flt_t x)
 #elif defined(HAVE_LOG2F)
 	return log2f (x);
 #else
-	#error ### no log2 function available ###
+	return math_log(x) / math_log(2.0);
 #endif
 }