Expose SpectSeqCreate(), SpectSeqDestroy() and LoadSpectSeq() functions for eSpeakNG Java Editor

src/libespeak-ng/spect.c

@@ -234,6 +234,7 @@ double GetFrameRms(SpectFrame *frame, int seq_amplitude)
 	return frame->rms;
 }
 
+#pragma GCC visibility push(default)
 SpectSeq *SpectSeqCreate()
 {
 	SpectSeq *spect = malloc(sizeof(SpectSeq));
@@ -271,6 +272,7 @@ void SpectSeqDestroy(SpectSeq *spect)
 	free(spect->name);
 	free(spect);
 }
+#pragma GCC visibility pop
 
 static float GetFrameLength(SpectSeq *spect, int frame)
 {
@@ -287,6 +289,7 @@ static float GetFrameLength(SpectSeq *spect, int frame)
 	return (spect->frames[ix]->time - spect->frames[frame]->time) * 1000.0 + adjust;
 }
 
+#pragma GCC visibility push(default)
 espeak_ng_STATUS LoadSpectSeq(SpectSeq *spect, const char *filename)
 {
 	short n, temp;
@@ -404,3 +407,4 @@ espeak_ng_STATUS LoadSpectSeq(SpectSeq *spect, const char *filename)
 	fclose(stream);
 	return ENS_OK;
 }
+#pragma GCC visibility pop