* .gitignore: Ignore generated files in VPATH builds

.gitignore

@@ -1,20 +1,24 @@
 # Ignore all executable files in these directories
-libwget/*
-!libwget/*.*
+**/libwget/*
+!**/libwget/?*.*
+**/libwget/css_tokenizer.c
+!**/libwget/*/
 
-tests/*
-!tests/*.*
+**/tests/*
+!**/tests/?*.*
+!**/tests/*/
 
-unit-tests/*
-!unit-tests/*.*
+**/unit-tests/*
+!**/unit-tests/?*.*
+!**/unit-tests/*/
 
-examples/*
-!examples/*.*
+**/examples/*
+!**/examples/?*.*
+!**/examples/*/
 
 m4/*
 !m4/wget_manywarnings.m4
 
-*.Makefile.in
 *.bak
 *.dll
 *.exe
@@ -26,18 +30,18 @@ m4/*
 *.plist
 *.stamp
 *.trs
-*/*.gcda
-*/*.gcno
-*/.deps
-*/.libs
-*/Makefile
+**/*.gcda
+**/*.gcno
+wget2.info
+.deps/
+.libs/
 *~
 .depend
 .manywarnings
 /ABOUT-NLS
-/GNUmakefile
+GNUmakefile
 /INSTALL
-/build-aux
+/build-aux/
 /maint.mk
 Makefile
 Makefile.in
@@ -55,31 +59,26 @@ config.status
 config.sub
 configure
 depcomp
-docs/html
-docs/man
-docs/README.md
-docs/wget2.info
-docs/wget2.texi
-docs/libwget.doxy
-docs/wget2_md2man.sh
-fuzz/*.min
-fuzz/*.out
-fuzz/*_fuzzer
-fuzz/*_fuzzer.new
+**/docs/html/
+**/docs/man/
+**/docs/README.md
+**/docs/wget2.texi
+**/docs/libwget.doxy
+**/docs/wget2_md2man.sh
+**/fuzz/*.min
+**/fuzz/*.out
+**/fuzz/*_fuzzer
+**/fuzz/*_fuzzer.new/
 git_push
-include/wget/wgetver.h
+**/include/wget/wgetver.h
 install-sh
 lcov
 lib
 libtool
 libwget.pc
-libwget/css_tokenizer.c
-ltmain.sh
-missing
 nbproject
-snippet
-src/wget2
-src/wget2_noinstall
+**/src/wget2
+**/src/wget2_noinstall
 stamp-h1
-test-driver
-wget2-*
+**/po/POTFILES
+wget2-*.tar.*