Add linguist lab

translations/.gitignore

-*-main.c
+*-main.c*
 *.mo
 gettext
+*.qm
+qt-linguist
+Makefile.linguist

translations/Linguist.pro

+QT += core
+
+TARGET = qt-linguist
+
+SOURCES += linguist-main.cpp setuplocale.c linguist.cpp
+TRANSLATIONS = example_sv.ts

translations/Makefile

-all: gettext-main.c linguist-main.c
+.PHONY: qt-linguist
+
+all: gettext-main.c linguist-main.cpp gettext qt-linguist
 
 gettext: gettext-main.c setuplocale.c gettext.c
 
 gettext-main.c: base.c
 	cp $< $@
-linguist-main.c: base.c
+linguist-main.cpp: base.c
 	cp $< $@
+
+qt-linguist: Makefile.linguist
+	$(MAKE) -f Makefile.linguist
+
+Makefile.linguist: Linguist.pro
+	qmake -o $@ $<

translations/base.c

 #include <stdio.h>
 
+#if __cplusplus
+extern "C" void setuplocale();
+#else
 void setup();
 void setuplocale();
+#endif
 
 int main(int argc, char** argv)
 {
   setuplocale();
+#if __cplusplus
+  /* For Qt: Your code here as it is more convenient than a separate function in C++.
+   * Setup a QCoreApplication (an application without GUI) and install a translator.
+   */
+#else
   setup();
-  /* TODO: You need to update this code to output translated strings
+#endif
+  /* You need to update this code to output translated strings
    * Note that you should make gettext-main.c linguist-main.c and modify
    * those files rather than base.c
    */
-  printf("The current language is the default (C/POSIX)\n");
-  printf("The horse can run.\n");
-  printf("How fast can the horse run?\n");
-  printf("It typically runs at speed of less than 50 km/h.\n");
+  puts("The current language is the default (C/POSIX)\n");
+  puts("The horse can run.\n");
+  puts("How fast can the horse run?\n");
+  puts("It typically runs at speed of less than 50 km/h.\n");
   return 0;
 }

translations/gettext.c

-#include <locale.h>
 #include <libintl.h>
-#include <stdio.h>
-#include <stdlib.h>
 
 void setup()
 {