diff --git a/Makefile b/Makefile
index f23600d63..575f0a46a 100644
--- a/Makefile
+++ b/Makefile
@@ -68,18 +68,18 @@ SIZE	= $(CROSS_COMPILE)size
 STRIP	= $(CROSS_COMPILE)strip
 
 # General flags
-CFLAGS ?= $(INCLUDES) -std=c99 -m32 #-fdiagnostics-color=always
-#CFLAGS += -Wall -Wextra -Wpedantic -Wlogical-op -Winline
-#CFLAGS += -Wformat-nonliteral -Winit-self -Wstack-protector
-#CFLAGS += -Wconversion -Wsign-conversion -Wformat-security
-#CFLAGS += -Wstrict-prototypes -Wmissing-prototypes
+CFLAGS ?= $(INCLUDES) -std=c99 #-fdiagnostics-color=always
+CFLAGS += -Wall -Wextra -Wpedantic -Wlogical-op -Winline
+CFLAGS += -Wformat-nonliteral -Winit-self -Wstack-protector
+CFLAGS += -Wconversion -Wsign-conversion -Wformat-security
+CFLAGS += -Wstrict-prototypes -Wmissing-prototypes
 
 # Flags for MCU
 MCU_CFLAGS += -mlittle-endian -mcpu=cortex-m4  -march=armv7e-m -mthumb
 MCU_CFLAGS += -mfpu=fpv4-sp-d16 -mfloat-abi=hard
 MCU_CFLAGS += -ffunction-sections -fdata-sections
 
-DEBUG_OPTIONS = -g3 -O0 -DJERRY_NDEBUG# -fsanitize=address
+DEBUG_OPTIONS = -g3 -O0 # -fsanitize=address
 RELEASE_OPTIONS = -Os -Werror -DJERRY_NDEBUG
 
 DEFINES = -DMEM_HEAP_CHUNK_SIZE=256 -DMEM_HEAP_AREA_SIZE=32768 -DMEM_STATS
diff --git a/src/globals.h b/src/globals.h
index f421c9623..601af677e 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -55,7 +55,11 @@ typedef signed int int32_t;
  */
 #define JERRY_STATIC_ASSERT_GLUE_( a, b ) a ## b
 #define JERRY_STATIC_ASSERT_GLUE( a, b ) JERRY_STATIC_ASSERT_GLUE_( a, b )
-#define JERRY_STATIC_ASSERT( x ) typedef char JERRY_STATIC_ASSERT_GLUE( static_assertion_failed_, __LINE__) [ ( x ) ? 1 : -1 ]
+#define JERRY_STATIC_ASSERT( x ) typedef char JERRY_STATIC_ASSERT_GLUE( static_assertion_failed_, __LINE__) [ ( x ) ? 1 : -1 ] __unused
+
+#define CALL_PRAGMA(x) _Pragma (#x)
+#define TODO(x) CALL_PRAGMA(message ("TODO - " #x))
+#define FIXME(x) CALL_PRAGMA(message ("FIXME - " #x))
 
 /**
  * Variable that must not be referenced.
diff --git a/src/liballocator/mem-heap.c b/src/liballocator/mem-heap.c
index 4a4b26a24..dc97f21d2 100644
--- a/src/liballocator/mem-heap.c
+++ b/src/liballocator/mem-heap.c
@@ -96,9 +96,9 @@ typedef struct
  */
 mem_HeapState_t mem_Heap;
 
-static inline size_t mem_get_block_chunks_count( const mem_BlockHeader_t *block_header_p);
-static inline size_t mem_get_block_data_space_size( const mem_BlockHeader_t *block_header_p);
-static inline size_t mem_get_block_chunks_count_from_data_size( size_t block_allocated_size);
+static size_t mem_get_block_chunks_count( const mem_BlockHeader_t *block_header_p);
+static size_t mem_get_block_data_space_size( const mem_BlockHeader_t *block_header_p);
+static size_t mem_get_block_chunks_count_from_data_size( size_t block_allocated_size);
 
 static void mem_InitBlockHeader( uint8_t *pFirstChunk,
                                 size_t sizeInChunks,
@@ -119,7 +119,7 @@ static void mem_HeapStatFreeBlock( mem_BlockHeader_t *block_header_p);
 static void mem_HeapStatFreeBlockSplit( void);
 static void mem_HeapStatFreeBlockMerge( void);
 #else /* !MEM_STATS */
-#  define mem_InitStats()
+#  define mem_HeapStatInit()
 #  define mem_HeapStatAllocBlock( v)
 #  define mem_HeapStatFreeBlock( v)
 #  define mem_HeapStatFreeBlockSplit()
@@ -131,7 +131,7 @@ static void mem_HeapStatFreeBlockMerge( void);
  *
  * @return chunks count
  */
-static inline size_t
+static size_t
 mem_get_block_chunks_count( const mem_BlockHeader_t *block_header_p) /**< block header */
 {
   JERRY_ASSERT( block_header_p != NULL );
@@ -158,7 +158,7 @@ mem_get_block_chunks_count( const mem_BlockHeader_t *block_header_p) /**< block
  *
  * @return size of block area that can be used to store data
  */
-static inline size_t
+static size_t
 mem_get_block_data_space_size( const mem_BlockHeader_t *block_header_p) /**< block header */
 {
   return mem_get_block_chunks_count( block_header_p) * MEM_HEAP_CHUNK_SIZE - sizeof (mem_BlockHeader_t);
@@ -169,7 +169,7 @@ mem_get_block_data_space_size( const mem_BlockHeader_t *block_header_p) /**< blo
  *
  * @return chunks count
  */
-static inline size_t
+static size_t
 mem_get_block_chunks_count_from_data_size( size_t block_allocated_size) /**< size of block's allocated area */
 {
   return JERRY_ALIGNUP( sizeof (mem_BlockHeader_t) + block_allocated_size, MEM_HEAP_CHUNK_SIZE) / MEM_HEAP_CHUNK_SIZE;
diff --git a/src/liballocator/mem-poolman.c b/src/liballocator/mem-poolman.c
index b8a2d1f8f..f084ceec6 100644
--- a/src/liballocator/mem-poolman.c
+++ b/src/liballocator/mem-poolman.c
@@ -65,13 +65,28 @@ static void mem_PoolsStatFreePool( mem_PoolChunkType_t);
 static void mem_PoolsStatAllocChunk( mem_PoolChunkType_t);
 static void mem_PoolsStatFreeChunk( mem_PoolChunkType_t);
 #else /* !MEM_STATS */
-#  define mem_PoolsStatsInit()
-#  define mem_PoolsStatAllocPool()
-#  define mem_PoolsStatsFreePool()
-#  define mem_PoolsStatAllocChunk()
-#  define mem_PoolsStatFreeChunk()
+#  define mem_PoolsStatInit()
+#  define mem_PoolsStatAllocPool(v)
+#  define mem_PoolsStatFreePool(v)
+#  define mem_PoolsStatAllocChunk(v)
+#  define mem_PoolsStatFreeChunk(v)
 #endif /* !MEM_STATS */
 
+/**
+ * Get chunk size from chunk type.
+ * 
+ * @return size (in bytes) of chunk of specified type
+ */
+size_t
+mem_GetChunkSize( mem_PoolChunkType_t chunkType) /**< chunk type */
+{
+    uint32_t chunkTypeId = (uint32_t) chunkType;
+
+    JERRY_ASSERT( chunkTypeId < MEM_POOL_CHUNK_TYPE__COUNT );
+
+    return ( 1u << ( chunkTypeId + 2 ) );
+} /* mem_GetChunkSize */
+
 /**
  * Initialize pool manager
  */
diff --git a/src/liballocator/mem-poolman.h b/src/liballocator/mem-poolman.h
index 36da10af9..dd2e08582 100644
--- a/src/liballocator/mem-poolman.h
+++ b/src/liballocator/mem-poolman.h
@@ -51,21 +51,7 @@ typedef enum {
                                         ((size) == 64 ? MEM_POOL_CHUNK_TYPE_64 : \
                                         jerry_UnreferencedExpression)))))
 
-/**
- * Get chunk size from chunk type.
- * 
- * @return size (in bytes) of chunk of specified type
- */
-static inline size_t
-mem_GetChunkSize( mem_PoolChunkType_t chunkType) /**< chunk type */
-{
-    uint32_t chunkTypeId = (uint32_t) chunkType;
-
-    JERRY_ASSERT( chunkTypeId < MEM_POOL_CHUNK_TYPE__COUNT );
-
-    return ( 1u << ( chunkTypeId + 2 ) );
-} /* mem_GetChunkSize */
-
+extern size_t mem_GetChunkSize( mem_PoolChunkType_t chunkType);
 
 extern void mem_PoolsInit(void);
 extern uint8_t* mem_PoolsAlloc(mem_PoolChunkType_t chunkType);
diff --git a/src/libcoreint/interpreter.c b/src/libcoreint/interpreter.c
index 088de1733..7ba03e17d 100644
--- a/src/libcoreint/interpreter.c
+++ b/src/libcoreint/interpreter.c
@@ -32,12 +32,12 @@ gen_bytecode ()
     wait(500);
    }
    */
-//  save_op_data (0, getop_loop_inf (1));
-//  save_op_data (1, getop_call_1 (0, 12));
-//  save_op_data (2, getop_call_1 (0, 13));
-//  save_op_data (3, getop_call_1 (0, 14));
-//  save_op_data (4, getop_call_1 (0, 15));
-//  save_op_data (5, getop_jmp (0));
+  //  save_op_data (0, getop_loop_inf (1));
+  //  save_op_data (1, getop_call_1 (0, 12));
+  //  save_op_data (2, getop_call_1 (0, 13));
+  //  save_op_data (3, getop_call_1 (0, 14));
+  //  save_op_data (4, getop_call_1 (0, 15));
+  //  save_op_data (5, getop_jmp (0));
 
 #ifdef __MCU
   // It's mandatory to restart app!
@@ -64,7 +64,7 @@ run_int ()
 
   while (true)
   {
-    run_int_from_pos(&int_data);
+    run_int_from_pos (&int_data);
   }
 }
 
diff --git a/src/libcoreint/interpreter.h b/src/libcoreint/interpreter.h
index 9e1a993eb..df556e39c 100644
--- a/src/libcoreint/interpreter.h
+++ b/src/libcoreint/interpreter.h
@@ -31,10 +31,10 @@ opfunc __opfuncs[LAST_OP];
 
 struct __int_data
 {
-  int pos;
+  int pos; /**< current opcode to execute */
   ecma_Object_t *pThisBinding; /**< this binding for current context */
   ecma_Object_t *pLexEnv; /**< current lexical environment */
-  int *root_op_addr;
+  int *root_op_addr; /**< pointer to first opcode saved */
 };
 
 void gen_bytecode (void);
diff --git a/src/main.c b/src/main.c
index 092390120..2ee4efd88 100644
--- a/src/main.c
+++ b/src/main.c
@@ -77,7 +77,7 @@ main (int argc, char **argv)
   }
 #endif
 
-  // FIXME: Call parser
+  TODO(Call parser);
 
   //gen_bytecode (generated_source);
   //gen_bytecode ();
diff --git a/tests/unit/test_poolman.c b/tests/unit/test_poolman.c
index 2c11deb7a..fa5fc56a9 100644
--- a/tests/unit/test_poolman.c
+++ b/tests/unit/test_poolman.c
@@ -93,8 +93,10 @@ main( int __unused argc,
         }
     }
 
+#ifdef MEM_STATS
     mem_PoolsStats_t stats;
     mem_PoolsGetStats( &stats);
+#endif /* MEM_STATS */
 
     __printf("Pools stats:\n");
     for(mem_PoolChunkType_t type = 0;