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13.4.11 Makefile.in in src/

Some of the modifications made in the main Makefile.in will also be needed in the Makefile.in from your package sources, which we assume here to be in the src/ subdirectory. Here are all the modifications needed in src/Makefile.in:

1. In view of the ‘dist:’ goal, you should have these lines near the beginning of src/Makefile.in:

   PACKAGE = @PACKAGE@
   VERSION = @VERSION@
   

2. If not done already, you should guarantee that top_srcdir gets defined. This will serve for cpp include files. Just add the line:

   top_srcdir = @top_srcdir@
   

3. You might also want to define subdir as ‘src’, later allowing for almost uniform ‘dist:’ goals in all your Makefile.in. At list, the ‘dist:’ goal below assume that you used:

   subdir = src
   

4. The main function of your program will normally call bindtextdomain (see see Triggering gettext Operations), like this:

   bindtextdomain (PACKAGE, LOCALEDIR);
   textdomain (PACKAGE);
   

   On native Windows platforms, the main function may call wbindtextdomain instead of bindtextdomain.

   To make LOCALEDIR known to the program, add the following lines to Makefile.in:

   datadir = @datadir@
   datarootdir= @datarootdir@
   localedir = @localedir@
   DEFS = -DLOCALEDIR=$(localedir_c_make) @DEFS@
   

   $(localedir_c_make) expands to the value of localedir, in C syntax, escaped for use in a Makefile. Note that @datadir@ defaults to ‘$(prefix)/share’, and $(localedir) defaults to ‘$(prefix)/share/locale’.

5. You should ensure that the final linking will use @LIBINTL@ or @LTLIBINTL@ as a library. @LIBINTL@ is for use without libtool, @LTLIBINTL@ is for use with libtool. An easy way to achieve this is to manage that it gets into LIBS, like this:

   LIBS = @LIBINTL@ @LIBS@
   

   In most packages internationalized with GNU gettext, one will find a directory lib/ in which a library containing some helper functions will be build. (You need at least the few functions which the GNU gettext Library itself needs.) However some of the functions in the lib/ also give messages to the user which of course should be translated, too. Taking care of this, the support library (say libsupport.a) should be placed before @LIBINTL@ and @LIBS@ in the above example. So one has to write this:

   LIBS = ../lib/libsupport.a @LIBINTL@ @LIBS@
   

6. Your ‘dist:’ goal has to conform with others. Here is a reasonable definition for it:

   distdir = ../$(PACKAGE)-$(VERSION)/$(subdir)
   dist: Makefile $(DISTFILES)
   	for file in $(DISTFILES); do \
   	  ln $$file $(distdir) 2>/dev/null || cp -p $$file $(distdir) || exit 1; \
   	done
   

Note that if you are using GNU automake, Makefile.in is automatically generated from Makefile.am, and the first three changes and the last change are not necessary. The remaining needed Makefile.am modifications are the following:

1. To make LOCALEDIR known to the program, add the following to Makefile.am:

   <module>_CPPFLAGS = -DLOCALEDIR=$(localedir_c_make)
   

   for each specific module or compilation unit, or

   AM_CPPFLAGS = -DLOCALEDIR=$(localedir_c_make)
   

   for all modules and compilation units together.

2. To ensure that the final linking will use @LIBINTL@ or @LTLIBINTL@ as a library, add the following to Makefile.am:

   <program>_LDADD = @LIBINTL@
   

   for each specific program, or

   LDADD = @LIBINTL@
   

   for all programs together. Remember that when you use libtool to link a program, you need to use @LTLIBINTL@ instead of @LIBINTL@ for that program.