Add ENABLE_NLS if all necessary packages can be found.Build translations. Copied po/CMakeLists.txt from Stellarium project at http://sourceforge.net/projects/stellarium/. This works somehow with some changes.

2 files changed, 143 insertions, 1 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d76f834f..7dbe993a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -126,9 +126,19 @@ DefineHFileIfAvailable(stdlib.h HAVE_STDLIB_H)
 DefineHFileIfAvailable(unistd.h HAVE_UNISTD_H)
 DefineFunctionIfAvailable(gettext HAVE_GETTEXT)
 DefineFunctionIfAvailable(dcgettext HAVE_DCGETTEXT)
+  FIND_PACKAGE(Gettext REQUIRED)
+#  FIND_PACKAGE(XGettext REQUIRED)
+#  FIND_PACKAGE(Iconv REQUIRED)
+  FIND_PATH(INTL_INCLUDE_DIR libintl.h PATHS /usr/include /usr/local/include)
+  FIND_LIBRARY(INTL_LIBRARIES intl c PATHS /usr/lib/ /usr/local/lib)
 DefineSymbolIfAvailable("CODESET" "langinfo.h" HAVE_LANGINFO_CODESET)
 DefineSymbolIfAvailable("LC_MESSAGES" "locale.h" HAVE_LC_MESSAGES)
 DefineTypeIfAvailable("_Bool" HAVE__BOOL)
+if (${HAVE_GETTEXT} AND  ${HAVE_DCGETTEXT} AND ${HAVE_LANGINFO_CODESET} AND ${HAVE_LC_MESSAGES})
+  add_definitions(-D LOCALEDIR=\\"/usr/share/locale\\")
+  add_definitions(-D ENABLE_NLS)
+  ADD_SUBDIRECTORY( po )
+endif()
 DefineHFileIfAvailable(stdbool.h HAVE_STDBOOL_H)
 DefineHFileIfAvailable(sys/wait.h HAVE_SYS_WAIT_H)
 DefineHFileIfAvailable(arpa/inet.h HAVE_ARPA_INET_H)
@@ -261,7 +271,6 @@ endif()
 
 set (GAWK_SOURCES ${GAWK_SOURCES}
   array.c
-  awkgram.c
   builtin.c 
   cint_array.c 
   command.c
diff --git a/po/CMakeLists.txt b/po/CMakeLists.txt
new file mode 100644
index 00000000..cd930077
--- /dev/null
+++ b/po/CMakeLists.txt
@@ -0,0 +1,133 @@
+# Most of this copied from the repository of Stellarium
+# http://sourceforge.net/projects/stellarium/
+
+# Special targets for translations:
+#
+# translations
+#   Converts all PO files to GMO files. Note that it does *not* update
+#   the PO files or the PO templates -- in fact, these files are never
+#   updated automatically.
+#
+# generate-pot
+#   Re-creates all POT files unconditionally.
+#
+# update-po
+#   Updates all PO files unconditionally. Note that it takes care of
+#   updating the POT files.
+#
+# translations-<DOMAIN>
+# generate-pot-<DOMAIN>
+# update-po-<DOMAIN>
+#   Same as above, but only affect the files in the corresponding
+#   po/<DOMAIN> directory. (DOMAIN is actually the base name of the POT
+#   file in the subdirectory, but that should match the directory name
+#   anyway.)
+
+ADD_CUSTOM_TARGET(translations)
+ADD_CUSTOM_TARGET(generate-pot)
+ADD_CUSTOM_TARGET(update-po)
+
+# GETTEXT_CREATE_TRANSLATIONS(domain [DEFAULT_TARGET] lang1 ... langN)
+#
+# Creates custom build rules to create and install (G)MO files for the
+# specified languages. If the DEFAULT_TARGET option is used, the
+# translations will also be created when building the default target.
+#
+# "domain" is the translation domain, eg. "gawk". A POT file
+# with the name ${domain}.pot must exist in the directory of the
+# CMakeLists.txt file invoking the macro.
+#
+# This macro also creates the "translations-${domain}" and
+# "update-po-${domain}" targets (see above for an explanation).
+#
+MACRO(GETTEXT_CREATE_TRANSLATIONS _domain _firstLang)
+
+    SET(_gmoFiles)
+    GET_FILENAME_COMPONENT(_absPotFile ${_domain}.pot ABSOLUTE)
+
+    # Update these PO files when building the "update-po-<DOMAIN>" and
+    # "update-po" targets.
+    ADD_CUSTOM_TARGET(update-po-${_domain})
+    ADD_DEPENDENCIES(update-po update-po-${_domain})
+
+    # Make sure the POT file is updated before updating the PO files.
+    ADD_DEPENDENCIES(update-po-${_domain} generate-pot-${_domain})
+
+    SET(_addToAll)
+    IF(${_firstLang} STREQUAL "DEFAULT_TARGET")
+        SET(_addToAll "ALL")
+        SET(_firstLang)
+    ENDIF(${_firstLang} STREQUAL "DEFAULT_TARGET")
+
+    FOREACH (_lang ${ARGN})
+        GET_FILENAME_COMPONENT(_absFile ${_lang}.po ABSOLUTE)
+        FILE(RELATIVE_PATH _relFile ${PROJECT_SOURCE_DIR} ${_absFile})
+        SET(_gmoFile ${CMAKE_CURRENT_BINARY_DIR}/${_lang}.gmo)
+
+        # Convert a PO file into a GMO file.
+        ADD_CUSTOM_COMMAND(
+            OUTPUT ${_gmoFile} 
+            COMMAND ${GETTEXT_MSGFMT_EXECUTABLE} -o ${_gmoFile} ${_absFile}
+            DEPENDS ${_absFile}
+        )
+
+        # Update the PO file unconditionally when building the
+        # "update-po-<DOMAIN>" target. Note that to see the file being
+        # processed, we have to run "cmake -E echo", because the
+        # COMMENT is not displayed by cmake...
+        ADD_CUSTOM_COMMAND(
+            TARGET update-po-${_domain}
+            POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E echo "** Updating ${_relFile}"
+            COMMAND ${GETTEXT_MSGMERGE_EXECUTABLE}
+                --quiet --update -m --backup=none -s
+                ${_absFile} ${_absPotFile}
+            VERBATIM
+        )
+
+        INSTALL(FILES ${_gmoFile} DESTINATION share/locale/${_lang}/LC_MESSAGES RENAME ${_domain}.mo)
+        SET(_gmoFiles ${_gmoFiles} ${_gmoFile})
+
+   ENDFOREACH (_lang)
+
+   # Create the GMO files when building the "translations-<DOMAIN>" and
+   # "translations" targets.
+   ADD_CUSTOM_TARGET(translations-${_domain} ${_addToAll} DEPENDS ${_gmoFiles})
+   ADD_DEPENDENCIES(translations translations-${_domain})
+
+ENDMACRO(GETTEXT_CREATE_TRANSLATIONS )
+
+SET(gawk_DOMAIN gawk)
+SET(gawk_POT ${gawk_DOMAIN}.pot)
+
+file(READ LINGUAS linguas)
+string(REGEX REPLACE "\n" ";"  linguas ${linguas})
+GETTEXT_CREATE_TRANSLATIONS(${gawk_DOMAIN} DEFAULT_TARGET ${linguas})
+
+ADD_CUSTOM_TARGET(
+  generate-pot-${gawk_DOMAIN}
+  ${GETTEXT_XGETTEXT_EXECUTABLE}
+  -o ${CMAKE_CURRENT_SOURCE_DIR}/${gawk_POT}
+  -C
+  --keyword=_
+  --keyword=N_
+  --keyword=q_
+  --keyword=translate:2
+  --add-comments=TRANSLATORS:
+  --directory=${CMAKE_BINARY_DIR}
+  --directory=${CMAKE_SOURCE_DIR}
+  --output-dir=${CMAKE_BINARY_DIR}
+  --files-from=${CMAKE_CURRENT_SOURCE_DIR}/POTFILES.in
+  --copyright-holder=FSF
+  WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+  COMMENT "Generating ${gawk_POT}"
+  VERBATIM
+)
+# TODO: It would be nice to just depend on the exact files in POTFILES.in
+#file(READ ${CMAKE_CURRENT_SOURCE_DIR}/${gawk_POT} UiHeaders)
+#ADD_DEPENDENCIES(generate-pot-${gawk_DOMAIN} UiHeaders)
+#ADD_DEPENDENCIES(generate-pot-${gawk_DOMAIN} gawk_UIS_H)
+# Make sure the UI headers are created first.
+ADD_DEPENDENCIES(generate-pot-${gawk_DOMAIN} StelGuiLib)  # ??? FIXME
+# Generate this POT file when building the "generate-pot" target.
+ADD_DEPENDENCIES(generate-pot generate-pot-${gawk_DOMAIN})