diff --git a/source/lib/sysdep/compiler.h b/source/lib/sysdep/compiler.h
index 0b0cfa9b4c..dbaa92cee3 100644
--- a/source/lib/sysdep/compiler.h
+++ b/source/lib/sysdep/compiler.h
@@ -36,18 +36,6 @@
 #else
 # define MSC_VERSION 0
 #endif
-// .. LCC (Win32) and MCST LCC (E2K) compilers define same identifier (__LCC__)
-#if defined(__LCC__) && !defined(__MCST__)
-# define LCC_VERSION __LCC__
-#else
-# define LCC_VERSION 0
-#endif
-// .. MCST LCC (eLbrus Compiler Collection)
-#if defined(__LCC__) && defined(__MCST__)
-# define MCST_LCC_VERSION (__LCC__*100 + __LCC_MINOR__)
-#else
-# define MCST_LCC_VERSION 0
-#endif
 // .. GCC
 #ifdef __GNUC__
 # define GCC_VERSION (__GNUC__*100 + __GNUC_MINOR__)
diff --git a/source/lib/sysdep/os/win/wposix/wposix_types.h b/source/lib/sysdep/os/win/wposix/wposix_types.h
index bfa7436f82..7013871959 100644
--- a/source/lib/sysdep/os/win/wposix/wposix_types.h
+++ b/source/lib/sysdep/os/win/wposix/wposix_types.h
@@ -42,7 +42,7 @@ typedef short int16_t;
 typedef int int32_t;
 #endif
 
-#if MSC_VERSION || LCC_VERSION
+#if MSC_VERSION
 typedef __int64 int64_t;
 #else
 typedef long long int64_t;
@@ -51,7 +51,7 @@ typedef long long int64_t;
 typedef unsigned char uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned int uint32_t;
-#if MSC_VERSION || LCC_VERSION
+#if MSC_VERSION
 typedef unsigned __int64 uint64_t;
 #else
 typedef unsigned long long uint64_t;