.gitignore: Ignore more files generated by autotools

.gitignore

@@ -1,19 +1,72 @@
 # Autotools generated files
 locale/Makefile.in
 Makefile
+aclocal.m4
+autom4te.cache
 config.status
+bin-stamp
 .deps
+.dirstamp
+lib-stamp
 libtool
-stamp-h1
+stamp-h*
+stamp-po
+*.stamp
 
 # Generated files by build system
-lib-src/lib-widget-extra/libwidgetextra.pc
+lib-src/expat/expat_config.h
+lib-src/libflac/doc/Doxyfile
+lib-src/libflac/config.h
+lib-src/libflac/test/common.sh
+lib-src/libid3tag/config.h
+lib-src/libid3tag/libid3tag.list
+lib-src/libmad/config.h
+lib-src/libmad/libmad.list
+lib-src/libmad/mad.h
+lib-src/libogg/config.h
+lib-src/libogg/include/ogg/config_types.h
+lib-src/libogg/libogg.spec
+lib-src/libsndfile/build-test-tarball.mk
+lib-src/libsndfile/doc/libsndfile.css
+lib-src/libsndfile/libsndfile.spec
+lib-src/libsndfile/man/sndfile-deinterleave.1
+lib-src/libsndfile/man/sndfile-metadata-set.1
+lib-src/libsndfile/src/config.h
+lib-src/libsndfile/src/sndfile.h
+lib-src/libsndfile/src/version-metadata.rc
+lib-src/libsndfile/tests/pedantic-header-test.sh
+lib-src/libsndfile/tests/test_wrapper.sh
+lib-src/libsoxr/soxr-config.h
+lib-src/libsoxr/src/libsoxr-dev.src
+lib-src/libsoxr/src/libsoxr.src
+lib-src/libsoxr/tests/ref-*.s32
+lib-src/libvorbis/config.h
+lib-src/libvorbis/doc/Doxyfile
+lib-src/libvorbis/libvorbis.spec
 lib-src/sbsms/libsbsms.spec
-lib-src/sbsms/sbsms.pc
 lib-src/sbsms/src/config.h
+lib-src/soundtouch/include/soundtouch_config.h
+lib-src/twolame/doc/html/Doxyfile
+lib-src/twolame/libtwolame/config.h
 locale/POTFILES
 src/audacity.desktop
 src/configunix.h
+src/configwin.h
+*.pc
+
+# CMake build output
+lib-src/libsoxr/CMakeCache.txt
+lib-src/libsoxr/*.cmake
+CMakeFiles/
+CTestTestfile.cmake
+cmake_install.cmake
+
+# Waf build output
+lib-src/lv2/.buildvars
+lib-src/lv2/include/
+lib-src/lv2/*/build/
+lib-src/lv2/srcdir.mk
+.lock-waf_linux2_build
 
 # Mac build outputs
 mac/Audacity.xcodeproj/project.xcworkspace/contents.xcworkspacedata