Create m4 directory, and set it up.

Make sure the m4 directory is known to autoconf.

Also ignore the macro files copied over by libtool, gettext and the
other tools.

.gitignore

@@ -7,7 +7,6 @@ config.sub
 intltool-extract.in
 intltool-merge.in
 intltool-update.in
-m4/
 aclocal.m4
 *.cache
 config.h

configure.ac

@@ -21,6 +21,7 @@
 AC_PREREQ(2.62)
 AC_INIT([pavucontrol],[0.9.7],[mzcnihpbageby (at) 0pointer (dot) de])
 AC_CONFIG_SRCDIR([src/pavucontrol.cc])
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADERS([config.h])
 AM_INIT_AUTOMAKE([foreign 1.9 -Wall])
 

m4/.gitignore

@@ -0,0 +1,31 @@
+codeset.m4
+gettext.m4
+glibc2.m4
+glibc21.m4
+iconv.m4
+intdiv0.m4
+intl.m4
+intldir.m4
+intltool.m4
+intmax.m4
+inttypes-pri.m4
+inttypes_h.m4
+lcmessage.m4
+lib-ld.m4
+lib-link.m4
+lib-prefix.m4
+lock.m4
+longdouble.m4
+longlong.m4
+nls.m4
+po.m4
+printf-posix.m4
+progtest.m4
+size_max.m4
+stdint_h.m4
+uintmax_t.m4
+ulonglong.m4
+visibility.m4
+wchar_t.m4
+wint_t.m4
+xsize.m4