Build the ucd-tools files with libespeak.

Makefile.am

 src_libespeak_ng_la_LDFLAGS = -version-info $(SHARED_VERSION) -lpthread -lm \
 	${PCAUDIOLIB_LIBS}
 
-src_libespeak_ng_la_CFLAGS = -Isrc/include -Isrc/include/compat \
+src_libespeak_ng_la_CFLAGS = -Isrc/include -Isrc/include/compat -I src/ucd-tools/src/include \
 	-fPIC -fvisibility=hidden -D _BSD_SOURCE -D_DEFAULT_SOURCE -D _POSIX_C_SOURCE=200112L \
 	-pedantic -fno-exceptions -D PATH_ESPEAK_DATA=\"$(DATADIR)\" -DLIBESPEAK_NG_EXPORT \
 	${PCAUDIOLIB_CFLAGS} ${AM_CFLAGS}
 
 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/scripts.c \
+	src/ucd-tools/src/tostring.c \
 	src/libespeak-ng/compiledata.c \
 	src/libespeak-ng/compiledict.c \
 	src/libespeak-ng/compilembrola.c \

src/include/compat/stdint.h

 
 #pragma GCC system_header // Silence "warning: #include_next is a GCC extension"
 
-#if defined(HAVE_STDINT_H)
+#if defined(HAVE_STDINT_H) || !defined(HAVE_INTTYPES_H)
 #include_next <stdint.h>
-#elif defined(HAVE_INTTYPES_H)
-#include_next <inttypes.h>
 #else
-#error stdint.h compatibility is not supported on this platform
+#include_next <inttypes.h>
 #endif
 
 #endif