Build a test version of libespeak-ng that exposes the internal APIs.

.gitignore

 libespeak-ng.la
 libespeak-ng.so*
 
+libespeak-ng-test.a
+libespeak-ng-test.la
+libespeak-ng-test.so*
+
 # build output
 
 *.html

Makefile.am

 noinst_bin_PROGRAMS =
 noinst_bindir =
 
+noinst_lib_LTLIBRARIES =
+noinst_libdir =
+
 ##### ChangeLog:
 
 ChangeLog:
 	-pedantic -fno-exceptions -D PATH_ESPEAK_DATA=\"$(DATADIR)\" -DLIBESPEAK_NG_EXPORT \
 	${PCAUDIOLIB_CFLAGS} ${AM_CFLAGS}
 
-UCD_TOOLS_SOURCES = \
+src_libespeak_ng_la_SOURCES = \
 	src/ucd-tools/src/case.c \
 	src/ucd-tools/src/categories.c \
 	src/ucd-tools/src/ctype.c \
 	src/ucd-tools/src/proplist.c \
 	src/ucd-tools/src/scripts.c \
-	src/ucd-tools/src/tostring.c
-
-src_libespeak_ng_la_SOURCES = \
-	$(UCD_TOOLS_SOURCES) \
+	src/ucd-tools/src/tostring.c \
 	src/libespeak-ng/compiledata.c \
 	src/libespeak-ng/compiledict.c \
 	src/libespeak-ng/compilembrola.c \
 
 ##### tests:
 
+# Test version of libespeak-ng.so with access to the internal APIs, so they can
+# be accessed in the test code. This version should not be installed, as the
+# internal APIs are not guaranteed to be stable between releases.
+lib_LTLIBRARIES += src/libespeak-ng-test.la
+
+src_libespeak_ng_test_la_LDFLAGS = $(src_libespeak_ng_la_LDFLAGS)
+src_libespeak_ng_test_la_CFLAGS  = \
+	-fPIC -pedantic -fno-exceptions -D PATH_ESPEAK_DATA=\"$(DATADIR)\" -DLIBESPEAK_NG_EXPORT \
+	${PCAUDIOLIB_CFLAGS} ${AM_CFLAGS}
+src_libespeak_ng_test_la_SOURCES = $(src_libespeak_ng_la_SOURCES)
+
 noinst_bin_PROGRAMS += tests/encoding.test
 
 tests_encoding_test_LDADD   = src/libespeak-ng.la
 
 noinst_bin_PROGRAMS += tests/tokenizer.test
 
-tests_tokenizer_test_CFLAGS = -Isrc/libespeak-ng ${AM_CFLAGS}
-tests_tokenizer_test_SOURCES = \
-	$(UCD_TOOLS_SOURCES) \
-	src/libespeak-ng/encoding.c \
-	src/libespeak-ng/mnemonics.c \
-	src/libespeak-ng/tokenizer.c \
-	tests/tokenizer.c
+tests_tokenizer_test_CFLAGS  = -Isrc/libespeak-ng ${AM_CFLAGS}
+tests_tokenizer_test_LDADD   = src/libespeak-ng-test.la
+tests_tokenizer_test_SOURCES = tests/tokenizer.c
 
 noinst_bin_PROGRAMS += tests/voices.test
 
-tests_voices_test_LDADD   = src/libespeak-ng.la
+tests_voices_test_LDADD   = src/libespeak-ng-test.la
 tests_voices_test_CFLAGS  = -Isrc/libespeak-ng ${AM_CFLAGS}
 tests_voices_test_SOURCES = tests/voices.c
 

src/libespeak-ng/espeak_command.c

 #include "speech.h"
 #include "espeak_command.h"
 
+#ifdef USE_ASYNC
+
 static unsigned int my_current_text_id = 0;
 
 t_espeak_command *create_espeak_text(const void *text, size_t size, unsigned int position, espeak_POSITION_TYPE position_type, unsigned int end_position, unsigned int flags, void *user_data)
 		break;
 	}
 }
+
+#endif

src/libespeak-ng/fifo.c

 #include "fifo.h"
 #include "event.h"
 
+#ifdef USE_ASYNC
+
 // my_mutex: protects my_thread_is_talking,
 // my_stop_is_required, and the command fifo
 static pthread_mutex_t my_mutex;
 
 	init(0); // purge fifo
 }
+
+#endif