code cleanup: move Read4Bytes()

src/libespeak-ng/common.c

 	return (*str == 0 && memcmp(str, str+1, size-1) == 0);
 }
 
+int Read4Bytes(FILE *f)
+{
+	// Read 4 bytes (least significant first) into a word
+	int ix;
+	unsigned char c;
+	int acc = 0;
+
+	for (ix = 0; ix < 4; ix++) {
+		c = fgetc(f) & 0xff;
+		acc += (c << (ix*8));
+	}
+	return acc;
+}
+
 int towlower2(unsigned int c, Translator *translator)
 {
 	// check for non-standard upper to lower case conversions

src/libespeak-ng/common.h

 extern ESPEAK_NG_API void strncpy0(char *to, const char *from, int size);
 
 int is_str_totally_null(const char* str, int size); // Tests if all bytes of str up to size are null
+int Read4Bytes(FILE *f);
 int towlower2(unsigned int c, Translator *translator); // Supports Turkish I
 
 ESPEAK_NG_API int utf8_in(int *c, const char *buf);

src/libespeak-ng/compiledata.c

 #include <espeak-ng/speak_lib.h>
 #include <espeak-ng/encoding.h>
 
-#include "common.h"                    // for GetFileLength, strncpy0
+#include "common.h"                    // for GetFileLength, strncpy0, ...
 #include "error.h"                    // for create_file_error_context
 #include "mnemonics.h"               // for LookupMnemName, MNEM_TAB
 #include "phoneme.h"                  // for PHONEME_TAB, PHONEME_TAB_LIST
-#include "readclause.h"               // for Read4Bytes
 #include "spect.h"                    // for SpectFrame, peak_t, SpectSeq
 #include "speech.h"			// for path_home, GetFileLength
 #include "synthdata.h"                // for LoadPhData

src/libespeak-ng/readclause.c

 	return buf;
 }
 
-int Read4Bytes(FILE *f)
-{
-	// Read 4 bytes (least significant first) into a word
-	int ix;
-	unsigned char c;
-	int acc = 0;
-
-	for (ix = 0; ix < 4; ix++) {
-		c = fgetc(f) & 0xff;
-		acc += (c << (ix*8));
-	}
-	return acc;
-}
-
 static int AnnouncePunctuation(Translator *tr, int c1, int *c2_ptr, char *output, int *bufix, int end_clause)
 {
 	// announce punctuation names

src/libespeak-ng/readclause.h

 int clause_type_from_codepoint(uint32_t c);
 int Eof(void);
 const char *WordToString2(unsigned int word);
-int Read4Bytes(FILE *f);
 int AddNameData(const char *name,
                 int wide);
 int ReadClause(Translator *tr,

src/libespeak-ng/soundicon.c

 #include "soundicon.h" 
 #include "common.h"                // for GetFileLength
 #include "error.h"                // for create_file_error_context
-#include "readclause.h"               // for Read4Bytes
 #include "speech.h"                   // for path_home, PATHSEP
 #include "synthesize.h"                   // for samplerate
 

src/libespeak-ng/synth_mbrola.c

 
 #include "dictionary.h"
 #include "mbrola.h"
-#include "readclause.h"
 #include "setlengths.h"
 #include "synthdata.h"
 #include "wavegen.h"