--- a/configure.ac	2009-03-30 07:55:33.000000000 +0200
+++ b/configure.ac	2022-01-14 01:00:11.938929793 +0100
@@ -27,7 +27,7 @@
 ac_build_modes="len fix hash pad join split cat cmp cue conv info strip gen trim"
 
 dnl default file formats - used if --with-formats is not specified
-ac_build_formats="wav aiff shn flac ape alac tak ofr tta als wv lpac la mkw bonk kxs cust term null"
+ac_build_formats="wav aiff shn flac alac tak tta als wv la mkw bonk kxs cust term null"
 
 ac_alternate_modes=
 ac_alternate_formats=
@@ -101,10 +101,7 @@
       format_exists=true
       case $format in
         aiff ) format_aiff=true ;;
-        ape  ) format_ape=true ;;
         flac ) format_flac=true ;;
-        lpac ) format_lpac=true ;;
-        ofr  ) format_ofr=true ;;
         shn  ) format_shn=true ;;
         wv   ) format_wv=true ;;
         alac ) format_alac=true ;;
@@ -152,18 +149,6 @@
   AC_CHECK_PROG([SOX],[sox],[yes],[no (install for aiff support)])
 fi
 
-if test x$format_ape = xtrue; then
-  AC_CHECK_PROG([MAC],[mac],[yes],[no (install for ape support)])
-fi
-
-if test x$format_ofr = xtrue; then
-  AC_CHECK_PROG([OPTIMFROG],[ofr],[yes],[no (install for ofr support)])
-fi
-
-if test x$format_lpac = xtrue; then
-  AC_CHECK_PROG([LPAC],[lpac],[yes],[no (install for lpac support)])
-fi
-
 if test x$format_wv = xtrue; then
   AC_CHECK_PROG([WAVPACK],[wvunpack],[yes],[no (install for wv support)])
 fi
--- a/src/Makefile.am	2008-02-19 00:11:46.000000000 +0100
+++ b/src/Makefile.am	2022-01-14 00:46:28.339812684 +0100
@@ -1,7 +1,7 @@
 CORE_SOURCES = core_convert.c core_fileio.c core_format.c core_mode.c core_module.c core_output.c core_shntool.c core_wave.c
 GLUE_SOURCES = glue_modes.c glue_formats.c
 MODE_SOURCES_ALL = mode_cat.c mode_cmp.c mode_conv.c mode_cue.c mode_fix.c mode_gen.c mode_hash.c mode_info.c mode_join.c mode_len.c mode_pad.c mode_split.c mode_strip.c mode_trim.c
-FORMAT_SOURCES_ALL = format_aiff.c format_alac.c format_als.c format_ape.c format_bonk.c format_cust.c format_flac.c format_kxs.c format_la.c format_lpac.c format_mkw.c format_null.c format_ofr.c format_shn.c format_tak.c format_term.c format_tta.c format_wav.c format_wv.c
+FORMAT_SOURCES_ALL = format_aiff.c format_alac.c format_als.c format_bonk.c format_cust.c format_flac.c format_kxs.c format_la.c format_mkw.c format_null.c format_shn.c format_tak.c format_term.c format_tta.c format_wav.c format_wv.c
 
 MODE_ALIASES_ALL = $(shell echo $(MODE_SOURCES_ALL) | sed -e 's/mode_//g' -e 's/\.c//g')
 MODE_ALIASES = @MODES_CONFIGURED@
--- a/src/Makefile.in	2009-03-30 07:55:58.000000000 +0200
+++ b/src/Makefile.in	2022-01-14 00:50:05.434851822 +0100
@@ -103,7 +103,6 @@
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
 LN_S = @LN_S@
-LPAC = @LPAC@
 LTLIBOBJS = @LTLIBOBJS@
 MAC = @MAC@
 MAKEINFO = @MAKEINFO@
@@ -182,7 +181,7 @@
 CORE_SOURCES = core_convert.c core_fileio.c core_format.c core_mode.c core_module.c core_output.c core_shntool.c core_wave.c
 GLUE_SOURCES = glue_modes.c glue_formats.c
 MODE_SOURCES_ALL = mode_cat.c mode_cmp.c mode_conv.c mode_cue.c mode_fix.c mode_gen.c mode_hash.c mode_info.c mode_join.c mode_len.c mode_pad.c mode_split.c mode_strip.c mode_trim.c
-FORMAT_SOURCES_ALL = format_aiff.c format_alac.c format_als.c format_ape.c format_bonk.c format_cust.c format_flac.c format_kxs.c format_la.c format_lpac.c format_mkw.c format_null.c format_ofr.c format_shn.c format_tak.c format_term.c format_tta.c format_wav.c format_wv.c
+FORMAT_SOURCES_ALL = format_aiff.c format_alac.c format_als.c format_bonk.c format_cust.c format_flac.c format_kxs.c format_la.c format_mkw.c format_null.c format_shn.c format_tak.c format_term.c format_tta.c format_wav.c format_wv.c
 MODE_ALIASES_ALL = $(shell echo $(MODE_SOURCES_ALL) | sed -e 's/mode_//g' -e 's/\.c//g')
 MODE_ALIASES = @MODES_CONFIGURED@
 MODULE_OBJS = @MODE_OBJS@ @FORMAT_OBJS@
@@ -270,16 +269,13 @@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_aiff.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_alac.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_als.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_ape.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_bonk.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_cust.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_flac.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_kxs.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_la.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_lpac.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_mkw.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_null.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_ofr.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_shn.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_tak.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format_term.Po@am__quote@
--- a/man/shntool.1	2009-03-30 07:59:25.000000000 +0200
+++ b/man/shntool.1	2022-01-15 00:10:14.587805825 +0100
@@ -133,13 +133,6 @@
 .br
 <http://flac.sourceforge.net/>
 .TP
-.I ape
-Monkey's Audio Compressor (via 'mac'):
-.br
-<http://www.monkeysaudio.com/>
-.br
-<http://supermmx.org/linux/mac/>
-.TP
 .I alac
 Apple Lossless Audio Codec (via 'alac'):
 .br
@@ -150,11 +143,6 @@
 .br
 <http://www.thbeck.de/Tak/Tak.html>
 .TP
-.I ofr
-OptimFROG Lossless WAVE Audio Coder (via 'ofr'):
-.br
-<http://www.losslessaudio.org/>
-.TP
 .I tta
 TTA Lossless Audio Codec (via 'ttaenc'):
 .br
@@ -172,11 +160,6 @@
 .br
 <http://www.wavpack.com/>
 .TP
-.I lpac
-Lossless Predictive Audio Compression (via 'lpac'):
-.br
-<http://www.nue.tu\-berlin.de/wer/liebchen/lpac.html>
-.TP
 .I la
 Lossless Audio (via 'la'):
 .br