diff --git a/programs/Makefile b/programs/Makefile
index b81bfeba..6aca9768 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -48,7 +48,6 @@ CPPFLAGS= -I../lib -DZSTD_VERSION=\"$(VERSION)\"
 CFLAGS ?= -O3  # -falign-loops=32   # not always beneficial
 CFLAGS += -std=c99 -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow -Wstrict-aliasing=1 -Wswitch-enum -Wstrict-prototypes -Wundef
 FLAGS   = $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $(MOREFLAGS)
-LDFLAGS ?= -lrt
 
 BINDIR  = $(PREFIX)/bin
 MANDIR  = $(PREFIX)/share/man/man1
@@ -87,11 +86,11 @@ all: zstd zstd32 fullbench fullbench32 fuzzer fuzzer32 zbufftest zbufftest32 par
 
 zstd  : $(ZSTD_FILES) $(ZSTD_FILES_LEGACY) $(ZSTDDIR)/zbuff.c $(ZSTDDIR)/zdict.c $(ZSTDDIR)/divsufsort.c \
         zstdcli.c fileio.c bench.c xxhash.c datagen.c dibio.c
-	$(CC)      $(FLAGS) -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT) $^ $(LDFLAGS) -o $@$(EXT)
+	$(CC)      $(FLAGS) -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT) $^ -o $@$(EXT)
 
 zstd32: $(ZSTD_FILES) $(ZSTD_FILES_LEGACY) $(ZSTDDIR)/zbuff.c $(ZSTDDIR)/zdict.c $(ZSTDDIR)/divsufsort.c \
         zstdcli.c fileio.c bench.c xxhash.c datagen.c dibio.c 
-	$(CC) -m32 $(FLAGS) -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT) $^ $(LDFLAGS) -o $@$(EXT)
+	$(CC) -m32 $(FLAGS) -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT) $^ -o $@$(EXT)
 
 zstd_nolegacy :
 	$(MAKE) zstd ZSTD_LEGACY_SUPPORT=0
diff --git a/programs/bench.c b/programs/bench.c
index 0de58238..28027f4a 100644
--- a/programs/bench.c
+++ b/programs/bench.c
@@ -70,43 +70,20 @@
 #  define setHighPriority() /* disabled */
 #endif
 
-/*
-Windows QueryPerformanceCounter resolution = 410 nanosec
-Windows clock() resolution = 1000000 nanosec
-VirtualBox Ubuntu clock() resolution = 1000 nanosec
-VirtualBox Ubuntu clock_gettime() resolution = 100-280 nanosec
-fizzle clock() resolution = 1000 nanosec
-fizzle clock_gettime() resolution = 100-280 nanosec
-*/
-
 #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)))
-
-#if 0
    typedef clock_t BMK_time_t;
-#  define BMK_TIME_FUNCTION "clock()"
 #  define BMK_initTimer(ticksPerSecond) (void)ticksPerSecond
 #  define BMK_getTime(x) x = clock()
 #  define BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (1000000ULL * (clockEnd - clockStart) / CLOCKS_PER_SEC)
 #  define BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (1000000000ULL * (clockEnd - clockStart) / CLOCKS_PER_SEC)
-#else
-   typedef struct timespec BMK_time_t;
-#  define BMK_TIME_FUNCTION "clock_gettime"
-#  define BMK_initTimer(ticksPerSecond) (void)ticksPerSecond
-#  define BMK_getTime(x) if (clock_gettime(CLOCK_MONOTONIC, &x) == -1 ){ fprintf(stderr, "ERROR: clock_gettime error\n"); }
-#  define BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (1000000ULL*( clockEnd.tv_sec - clockStart.tv_sec ) + ( clockEnd.tv_nsec - clockStart.tv_nsec ) / 1000)
-#  define BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (1000000000ULL*( clockEnd.tv_sec - clockStart.tv_sec ) + ( clockEnd.tv_nsec - clockStart.tv_nsec ))
-#endif
-
 #elif defined(_WIN32)
    typedef LARGE_INTEGER BMK_time_t;
-#  define BMK_TIME_FUNCTION "QueryPerformanceFrequency"
 #  define BMK_initTimer(x) if (!QueryPerformanceFrequency(&x)) { fprintf(stderr, "ERROR: QueryPerformance not present\n"); }
 #  define BMK_getTime(x) QueryPerformanceCounter(&x)
 #  define BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (1000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart)
 #  define BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) (1000000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart)
 #else
    typedef int BMK_time_t;
-#  define BMK_TIME_FUNCTION "None"
 #  define BMK_initTimer(ticksPerSecond) (void)ticksPerSecond
 #  define BMK_getTimeMicro(clockStart) clockStart=1
 #  define BMK_getSpanTimeMicro(ticksPerSecond, clockStart, clockEnd) (TIMELOOP_S*1000000ULL+clockEnd-clockStart)
@@ -284,17 +261,6 @@ static int BMK_benchMem(const void* srcBuffer, size_t srcSize,
     if (strlen(displayName)>17) displayName += strlen(displayName)-17;   /* can only display 17 characters */
     BMK_initTimer(ticksPerSecond);
 
-    {
-        BMK_time_t clockStart, clockEnd;
-
-        BMK_getTime(clockStart);
-        do { BMK_getTime(clockEnd); }
-        while (BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd) == 0);
-
-        printf(BMK_TIME_FUNCTION " resolution = %d nanosec\n", (int)BMK_getSpanTimeNano(ticksPerSecond, clockStart, clockEnd));
-    }
-
-
     /* Init blockTable data */
     {   const char* srcPtr = (const char*)srcBuffer;
         char* cPtr = (char*)compressedBuffer;