Convert po/ subdirectory to GNU gettext template system.

Maintaining po/ now means maintaining po/LINGUAS, po/POTFILES.in, and
po/Makevars.  The other files are automatically added by gettextize when
we update to a newer minimum version of gettext.

The LINGUAS file lists all of the languages we support.  The POTFILES.in
file lists all of the source files that have strings for translation.
The Makevars file sets some control variables and options to xgettext.

1 files changed, 23 insertions, 0 deletions

diff --git a/po/insert-header.sin b/po/insert-header.sin
new file mode 100644
index 000000000..b26de01f6
--- /dev/null
+++ b/po/insert-header.sin
@@ -0,0 +1,23 @@
+# Sed script that inserts the file called HEADER before the header entry.
+#
+# At each occurrence of a line starting with "msgid ", we execute the following
+# commands. At the first occurrence, insert the file. At the following
+# occurrences, do nothing. The distinction between the first and the following
+# occurrences is achieved by looking at the hold space.
+/^msgid /{
+x
+# Test if the hold space is empty.
+s/m/m/
+ta
+# Yes it was empty. First occurrence. Read the file.
+r HEADER
+# Output the file's contents by reading the next line. But don't lose the
+# current line while doing this.
+g
+N
+bb
+:a
+# The hold space was nonempty. Following occurrences. Do nothing.
+x
+:b
+}