fix autotools build, bump version number
diff --git a/silk_headers.txt b/silk_headers.txt
index 6f160b7..d0d5ade 100644
--- a/silk_headers.txt
+++ b/silk_headers.txt
@@ -1,25 +1,26 @@
-silk/silk_debug.h
-silk/silk_control.h
-silk/silk_errors.h
-silk/silk_API.h
-silk/silk_typedef.h
-silk/silk_define.h
-silk/silk_main.h
-silk/silk_PLC.h
-silk/silk_structs.h
-silk/silk_tables.h
-silk/silk_tuning_parameters.h
-silk/silk_Inlines.h
-silk/silk_MacroCount.h
-silk/silk_MacroDebug.h
-silk/silk_macros.h
-silk/silk_pitch_est_defines.h
-silk/silk_resampler_private.h
-silk/silk_resampler_rom.h
-silk/silk_resampler_structs.h
-silk/silk_SigProc_FIX.h
-silk/fixed/silk_main_FIX.h
-silk/fixed/silk_structs_FIX.h
-silk/float/silk_main_FLP.h
-silk/float/silk_structs_FLP.h
+SILK_HEAD = \
+silk/silk_debug.h \
+silk/silk_control.h \
+silk/silk_errors.h \
+silk/silk_API.h \
+silk/silk_typedef.h \
+silk/silk_define.h \
+silk/silk_main.h \
+silk/silk_PLC.h \
+silk/silk_structs.h \
+silk/silk_tables.h \
+silk/silk_tuning_parameters.h \
+silk/silk_Inlines.h \
+silk/silk_MacroCount.h \
+silk/silk_MacroDebug.h \
+silk/silk_macros.h \
+silk/silk_pitch_est_defines.h \
+silk/silk_resampler_private.h \
+silk/silk_resampler_rom.h \
+silk/silk_resampler_structs.h \
+silk/silk_SigProc_FIX.h \
+silk/fixed/silk_main_FIX.h \
+silk/fixed/silk_structs_FIX.h \
+silk/float/silk_main_FLP.h \
+silk/float/silk_structs_FLP.h \
silk/float/silk_SigProc_FLP.h