[zstd] Add -Wmissing-prototypes

programs/Makefile

@@ -48,7 +48,7 @@ DEBUGFLAGS+=-Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
             -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
             -Wstrict-prototypes -Wundef -Wpointer-arith -Wformat-security \
             -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
-            -Wredundant-decls
+            -Wredundant-decls -Wmissing-prototypes
 CFLAGS  += $(DEBUGFLAGS) $(MOREFLAGS)
 FLAGS    = $(CPPFLAGS) $(CFLAGS) $(LDFLAGS)
 

programs/datagen.c

@@ -13,6 +13,7 @@
 /*-************************************
 *  Dependencies
 **************************************/
+#include "datagen.h"
 #include "platform.h"  /* SET_BINARY_MODE */
 #include <stdlib.h>    /* malloc, free */
 #include <stdio.h>     /* FILE, fwrite, fprintf */
@@ -91,7 +92,7 @@ static U32 RDG_randLength(unsigned* seedPtr)
     return (RDG_rand(seedPtr) & 0x1FF) + 0xF;
 }
 
-void RDG_genBlock(void* buffer, size_t buffSize, size_t prefixSize, double matchProba, const BYTE* ldt, unsigned* seedPtr)
+static void RDG_genBlock(void* buffer, size_t buffSize, size_t prefixSize, double matchProba, const BYTE* ldt, unsigned* seedPtr)
 {
     BYTE* const buffPtr = (BYTE*)buffer;
     U32 const matchProba32 = (U32)(32768 * matchProba);

programs/dibio.c

@@ -84,10 +84,6 @@ static UTIL_time_t g_displayClock = UTIL_TIME_INITIALIZER;
 /* ********************************************************
 *  Helper functions
 **********************************************************/
-unsigned DiB_isError(size_t errorCode) { return ERR_isError(errorCode); }
-
-const char* DiB_getErrorName(size_t errorCode) { return ERR_getErrorName(errorCode); }
-
 #undef MIN
 #define MIN(a,b)    ((a) < (b) ? (a) : (b))
 

programs/fileio.c

@@ -1422,7 +1422,7 @@ static void FIO_zstdErrorHelp(dRess_t* ress, size_t err, char const* srcFileName
  *  @return : size of decoded zstd frame, or an error code
 */
 #define FIO_ERROR_FRAME_DECODING   ((unsigned long long)(-2))
-unsigned long long FIO_decompressZstdFrame(dRess_t* ress,
+static unsigned long long FIO_decompressZstdFrame(dRess_t* ress,
                                        FILE* finput,
                                        const char* srcFileName,
                                        U64 alreadyDecoded)