Generate build errors if phoneme or language data files contain errors.

dictsource/fr_rules

     ai) gni        n^        // craignions châtaignier
         gn         nj        // agneau
    _wa) gner (_    gnEr
-  _sta) gn   (      gn
-   dia) gn   (      gn
+  _sta) gn          gn
+   dia) gn          gn
      _) gn   (om    gn
      _) gn   (ou_   gn
         gn   (osie_ gn

src/espeak-ng.c

 			break;
 		case 0x10e: // --compile-mbrola
 			samplerate = espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 0, data_path, 0);
-			espeak_ng_CompileMbrolaVoice(optarg2, stdout);
-			exit(0);
+			return (espeak_ng_CompileMbrolaVoice(optarg2, stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
 		case 0x10f: // --compile-intonations
 			samplerate = espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 0, data_path, espeakINITIALIZE_PATH_ONLY);
-			espeak_ng_CompileIntonation(stdout);
-			exit(0);
+			return (espeak_ng_CompileIntonation(stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
 		case 0x110: // --compile-phonemes
 			samplerate = espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 0, data_path, espeakINITIALIZE_PATH_ONLY);
-			espeak_ng_CompilePhonemeData(22050, stdout);
-			exit(0);
+			return (espeak_ng_CompilePhonemeData(22050, stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
 		default:
 			exit(0);
 		}
 
 	if (flag_compile) {
 		// This must be done after the voice is set
-		espeak_CompileDictionary("", stderr, flag_compile & 0x1);
-		exit(0);
+		return (espeak_ng_CompileDictionary("", NULL, stderr, flag_compile & 0x1) == ENS_OK)
+		     ? EXIT_SUCCESS : EXIT_FAILURE;
 	}
 
 	// set any non-default values of parameters. This must be done after espeak_Initialize()

src/include/espeak-ng/espeak_ng.h

 #define espeakINITIALIZE_PATH_ONLY 0x4000
 
 ESPEAK_NG_API espeak_ng_STATUS
-espeak_ng_CompileMbrolaVoice(const char *path, FILE *log);
+espeak_ng_CompileDictionary(const char *dsource,
+                            const char *dict_name,
+                            FILE *log,
+                            int flags);
 
 ESPEAK_NG_API espeak_ng_STATUS
-espeak_ng_CompilePhonemeData(long rate, FILE *log);
+espeak_ng_CompileMbrolaVoice(const char *path,
+                             FILE *log);
+
+ESPEAK_NG_API espeak_ng_STATUS
+espeak_ng_CompilePhonemeData(long rate,
+                             FILE *log);
 
 ESPEAK_NG_API espeak_ng_STATUS
 espeak_ng_CompileIntonation(FILE *log);

src/libespeak-ng/compiledata.c

 		fclose(f_errors);
 
 	ReadPhondataManifest();
-	return ENS_OK;
+	return error_count > 0 ? ENE_COMPILE_ERRORS : ENS_OK;
 }
 
 static const char *preset_tune_names[] = {

src/libespeak-ng/compiledict.c

 #include <stdint.h>
 #endif
 
+#include "espeak_ng.h"
 #include "speak_lib.h"
+
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"
 	return 0;
 }
 
-int CompileDictionary(const char *dsource, const char *dict_name, FILE *log, char *fname_err, int flags)
+#pragma GCC visibility push(default)
+ESPEAK_NG_API espeak_ng_STATUS espeak_ng_CompileDictionary(const char *dsource, const char *dict_name, FILE *log, int flags)
 {
+	if (!log) log = stderr;
+	if (!dict_name) dict_name = dictionary_name;
+
 	// fname:  space to write the filename in case of error
 	// flags: bit 0:  include source line number information, for debug purposes.
 
 	sprintf(fname_in, "%srules.txt", path);
 	if ((f_in = fopen(fname_in, "r")) == NULL) {
 		sprintf(fname_in, "%srules", path);
-		if ((f_in = fopen_log(fname_in, "r")) == NULL) {
-			if (fname_err)
-				strcpy(fname_err, fname_in);
-			return -1;
-		}
+		if ((f_in = fopen_log(fname_in, "r")) == NULL)
+			return ENE_READ_ERROR;
 	}
 
 	sprintf(fname_out, "%s%c%s_dict", path_home, PATHSEP, dict_name);
 	if ((f_out = fopen_log(fname_out, "wb+")) == NULL) {
-		if (fname_err)
-			strcpy(fname_err, fname_out);
 		fclose(f_in);
-		return -1;
+		return ENE_WRITE_ERROR;
 	}
 	sprintf(fname_temp, "%s%ctemp", path_home, PATHSEP);
 
 
 	LoadDictionary(translator, dict_name, 0);
 
-	return error_count;
+	return error_count > 0 ? ENE_COMPILE_ERRORS : ENS_OK;
 }
+#pragma GCC visibility pop

src/libespeak-ng/compilembrola.c

 #pragma GCC visibility push(default)
 espeak_ng_STATUS espeak_ng_CompileMbrolaVoice(const char *filepath, FILE *log)
 {
+	if (!log) log = stderr;
+
 	char *p;
 	FILE *f_in;
 	FILE *f_out;

src/libespeak-ng/speak_lib.c

 
 ESPEAK_API void espeak_CompileDictionary(const char *path, FILE *log, int flags)
 {
-	CompileDictionary(path, dictionary_name, log, NULL, flags);
+	espeak_ng_CompileDictionary(path, dictionary_name, log, flags);
 }
 
 ESPEAK_API espeak_ERROR espeak_Cancel(void)

src/libespeak-ng/synthesize.h

 void Write4Bytes(FILE *f, int value);
 int Read4Bytes(FILE *f);
 int Reverse4Bytes(int word);
-int CompileDictionary(const char *dsource, const char *dict_name, FILE *log, char *err_name, int flags);
 
 #define ENV_LEN  128    // length of pitch envelopes
 #define PITCHfall   0  // standard pitch envelopes

src/speak-ng.c

 			break;
 		case 0x10e: // --compile-mbrola
 			samplerate = espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 0, data_path, 0);
-			espeak_ng_CompileMbrolaVoice(optarg2, stdout);
-			exit(0);
+			return (espeak_ng_CompileMbrolaVoice(optarg2, stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
 		case 0x10f: // --compile-intonations
 			samplerate = espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 0, data_path, espeakINITIALIZE_PATH_ONLY);
-			espeak_ng_CompileIntonation(stdout);
-			exit(0);
+			return (espeak_ng_CompileIntonation(stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
 		case 0x110: // --compile-phonemes
 			samplerate = espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 0, data_path, espeakINITIALIZE_PATH_ONLY);
-			espeak_ng_CompilePhonemeData(22050, stdout);
-			exit(0);
+			return (espeak_ng_CompilePhonemeData(22050, stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
 		default:
 			exit(0);
 		}
 		strcpy(path_dsource, path_home);
 		path_dsource[strlen(path_home)-11] = 0; // remove "espeak-data" from the end
 		strcat(path_dsource, "dictsource\\");
-		CompileDictionary(path_dsource, dictionary_name, NULL, NULL, flag_compile & 0x1);
+		espeak_ng_STATUS status = espeak_ng_CompileDictionary(path_dsource, dictionary_name, NULL, flag_compile & 0x1);
 #else
 #ifdef PLATFORM_WINDOWS
 		char path_dsource[sizeof(path_home)+20];
 		strcpy(path_dsource, path_home);
 		path_dsource[strlen(path_home)-11] = 0; // remove "espeak-data" from the end
 		strcat(path_dsource, "dictsource\\");
-		CompileDictionary(path_dsource, dictionary_name, NULL, NULL, flag_compile & 0x1);
+		espeak_ng_STATUS status = espeak_ng_CompileDictionary(path_dsource, dictionary_name, NULL, flag_compile & 0x1);
 #else
-		CompileDictionary(NULL, dictionary_name, NULL, NULL, flag_compile & 0x1);
+		espeak_ng_STATUS status = espeak_ng_CompileDictionary(NULL, dictionary_name, NULL, flag_compile & 0x1);
 #endif
 #endif
-		exit(0);
+		return (status == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
 	}
 
 	SetParameter(espeakRATE, speed, 0);