Use the error context API in espeak_ng_CompileIntonation.

src/espeak-ng.c

 			return EXIT_SUCCESS;
 		}
 		case 0x10f: // --compile-intonations
+		{
 			espeak_ng_InitializePath(data_path);
-			return (espeak_ng_CompileIntonation(stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
+			espeak_ng_ERROR_CONTEXT context = NULL;
+			espeak_ng_STATUS result = espeak_ng_CompileIntonation(stdout, &context);
+			if (result != ENS_OK) {
+				espeak_ng_PrintStatusCodeMessage(result, stderr, context);
+				espeak_ng_ClearErrorContext(&context);
+				return EXIT_FAILURE;
+			}
+			return EXIT_SUCCESS;
+		}
 		case 0x110: // --compile-phonemes
 			espeak_ng_InitializePath(data_path);
 			return (espeak_ng_CompilePhonemeData(22050, stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;

src/include/espeak-ng/espeak_ng.h

                              FILE *log);
 
 ESPEAK_NG_API espeak_ng_STATUS
-espeak_ng_CompileIntonation(FILE *log);
+espeak_ng_CompileIntonation(FILE *log,
+                            espeak_ng_ERROR_CONTEXT *context);
 
 #ifdef __cplusplus
 }

src/libespeak-ng/compiledata.c

 #include "speak_lib.h"
 #include "espeak_ng.h"
 
+#include "error.h"
 #include "speech.h"
 #include "phoneme.h"
 #include "synthesize.h"
 
 #pragma GCC visibility push(default)
 
-espeak_ng_STATUS espeak_ng_CompileIntonation(FILE *log)
+espeak_ng_STATUS espeak_ng_CompileIntonation(FILE *log, espeak_ng_ERROR_CONTEXT *context)
 {
 	if (!log) log = stderr;
 
 	sprintf(buf, "%s/../phsource/intonation.txt", path_home);
 	if ((f_in = fopen(buf, "r")) == NULL) {
 		sprintf(buf, "%s/../phsource/intonation", path_home);
-		if ((f_in = fopen_log(f_errors, buf, "r")) == NULL) {
+		if ((f_in = fopen(buf, "r")) == NULL) {
 			int error = errno;
-			fprintf(log, "Can't read file: %s\n", buf);
 			fclose(f_errors);
-			return error;
+			return create_file_error_context(context, error, buf);
 		}
 	}
 
 
 	tune_data = (TUNE *)calloc(sizeof(TUNE), n_tune_names);
 	if (tune_data == NULL) {
-		fprintf(f_errors, "Failed to allocate data for tunes\n");
 		fclose(f_in);
 		fclose(f_errors);
 		return ENOMEM;
 	}
 
 	sprintf(buf, "%s/intonations", path_home);
-	f_out = fopen_log(f_errors, buf, "wb");
+	f_out = fopen(buf, "wb");
 	if (f_out == NULL) {
 		int error = errno;
 		fclose(f_in);
 		fclose(f_errors);
 		free(tune_data);
-		return error;
+		return create_file_error_context(context, error, buf);
 	}
 
 	while (!feof(f_in)) {

src/speak-ng.c

 			return EXIT_SUCCESS;
 		}
 		case 0x10f: // --compile-intonations
+		{
 			espeak_ng_InitializePath(data_path);
-			return (espeak_ng_CompileIntonation(stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
+			espeak_ng_ERROR_CONTEXT context = NULL;
+			espeak_ng_STATUS result = espeak_ng_CompileIntonation(stdout, &context);
+			if (result != ENS_OK) {
+				espeak_ng_PrintStatusCodeMessage(result, stderr, context);
+				espeak_ng_ClearErrorContext(&context);
+				return EXIT_FAILURE;
+			}
+			return EXIT_SUCCESS;
+		}
 		case 0x110: // --compile-phonemes
 			espeak_ng_InitializePath(data_path);
 			return (espeak_ng_CompilePhonemeData(22050, stdout) == ENS_OK) ? EXIT_SUCCESS : EXIT_FAILURE;