build: gettextize

10 files changed, 80 insertions, 4 deletions

diff --git a/.gitignore b/.gitignore
index 0084077..3c7427f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,7 +4,8 @@
 *~
 *.orig
 
-# Files generated by aclocal, autoconf, and automake
+# Files generated by gettextize, aclocal, autoconf, and automake
+/ABOUT-NLS
 /aclocal.m4
 /autom4te.cache/
 /configure
diff --git a/Makefile.am b/Makefile.am
index 0e8124d..9ea4f18 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -63,7 +63,7 @@ atsign_LINK = $(LINK) version.c
 EXTRA_atsign_DEPENDENCIES = version.c
 CLEANFILES = version.c
 CONFIG_CLEAN_FILES =
-EXTRA_DIST = autogen.sh
+EXTRA_DIST = build-aux/config.rpath autogen.sh
 
 V_REDIR = $(V_REDIR_$(V))
 V_REDIR_ = $(V_REDIR_$(AM_DEFAULT_VERBOSITY))
@@ -151,3 +151,5 @@ release:
 
 include $(top_srcdir)/src/local.mk
 include $(top_srcdir)/tests/local.mk
+
+SUBDIRS = . po
diff --git a/autogen.sh b/autogen.sh
index c80fde1..1123075 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -2,7 +2,7 @@
 #
 # Script to generate the build system.
 #
-# Copyright (C) 2013  P. J. McDermott
+# Copyright (C) 2013, 2019  P. J. McDermott
 #
 # Copying and distribution of this file, with or without modification,
 # are permitted in any medium without royalty provided the copyright
@@ -19,6 +19,14 @@ srcdir="${0%/*}"
 	cat >ChangeLog <<-EOF
 This file is generated upon release.  Run \`git log\` for a list of changes.
 EOF
+	# Force gettextize to be non-interactive.  Stupid but necessary.
+	LC_ALL=C expect -f - <<-EOF
+		spawn gettextize --force --no-changelog
+		expect "Press Return to acknowledge the previous * paragraphs."
+		send "\n"
+		EOF
+	# This file contains a huge outdated matrix of unrelated packages.
+	>ABOUT-NLS
 	aclocal
 	autoconf
 	autoheader
diff --git a/configure.ac b/configure.ac
index 6578718..a42b73e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -32,6 +32,12 @@ AM_CONDITIONAL([OUT_OF_TREE], [test x"${srcdir}" != x'.' ])
 
 AM_CONDITIONAL([CROSS_COMPILING], [! test x"${build_alias}" = x"${host_alias}"])
 
+GETTEXT_PACKAGE="${PACKAGE}"
+AC_SUBST([GETTEXT_PACKAGE])
+AC_DEFINE_UNQUOTED([GETTEXT_PACKAGE], ["${GETTEXT_PACKAGE}"],
+	[Define the gettext package to be used.])
+AM_GNU_GETTEXT([external])
+
 save_CFLAGS="${CFLAGS-}"
 AC_PROG_CC()
 AM_PROG_CC_C_O()
@@ -155,6 +161,6 @@ for flag in -Os -fno-unwind-tables -fno-asynchronous-unwind-tables \
 	AX_CHECK_COMPILE_FLAG([${flag}], [AX_APPEND_FLAG([${flag}])])
 done
 
-AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([Makefile po/Makefile.in])
 AC_CONFIG_HEADERS([config.h])
 AC_OUTPUT()
diff --git a/m4/.gitignore b/m4/.gitignore
new file mode 100644
index 0000000..c7e2124
--- /dev/null
+++ b/m4/.gitignore
@@ -0,0 +1,8 @@
+/gettext.m4
+/iconv.m4
+/lib-ld.m4
+/lib-link.m4
+/lib-prefix.m4
+/nls.m4
+/po.m4
+/progtest.m4
diff --git a/po/.gitignore b/po/.gitignore
new file mode 100644
index 0000000..532f823
--- /dev/null
+++ b/po/.gitignore
@@ -0,0 +1,11 @@
+/Makefile.in.in
+/Makevars.template
+/Rules-quot
+/*.sed
+/POTFILES
+/*.pot
+/*.po
+/*.mo
+/*@boldquot.header
+/*@quot.header
+/stamp-po
diff --git a/po/Makevars b/po/Makevars
new file mode 100644
index 0000000..1753e43
--- /dev/null
+++ b/po/Makevars
@@ -0,0 +1,26 @@
+# Variables to be inserted into Makefile
+
+DOMAIN = $(PACKAGE)
+
+subdir = po
+top_builddir = ..
+
+XGETTEXT_OPTIONS = --add-comments=TRANSLATORS --keyword=_
+
+COPYRIGHT_HOLDER = P. J. McDermott
+
+PACKAGE_GNU = no
+
+MSGID_BUGS_ADDRESS = mailto:pj@pehjota.net
+
+EXTRA_LOCALE_CATEGORIES =
+
+USE_MSGCTXT = no
+
+MSGMERGE_OPTIONS =
+
+MSGINIT_OPTIONS =
+
+PO_DEPENDS_ON_POT = yes
+
+DIST_DEPENDS_ON_UPDATE_PO = yes
diff --git a/po/POTFILES.in b/po/POTFILES.in
new file mode 100644
index 0000000..5472064
--- /dev/null
+++ b/po/POTFILES.in
@@ -0,0 +1,2 @@
+src/datetime.c
+src/main.c
diff --git a/src/i18n.h b/src/i18n.h
new file mode 100644
index 0000000..4d8ee76
--- /dev/null
+++ b/src/i18n.h
@@ -0,0 +1,11 @@
+#ifdef ENABLE_NLS
+
+#include <libintl.h>
+
+#define _(msgid) gettext(msgid)
+
+#else
+
+#define _(msgid) (msgid)
+
+#endif
diff --git a/src/local.mk b/src/local.mk
index 3ce2029..1012945 100644
--- a/src/local.mk
+++ b/src/local.mk
@@ -2,4 +2,5 @@ atsign_SOURCES += \
 	%reldir%/datetime.c \
 	%reldir%/datetime.h \
 	%reldir%/formats.h \
+	%reldir%/i18n.h \
 	%reldir%/main.c