+ src/libpspp/string-array.c \
+ src/libpspp/string-array.h \
+ src/libpspp/string-map.c \
+ src/libpspp/string-map.h \
+ src/libpspp/string-set.c \
+ src/libpspp/string-set.h \
+ src/libpspp/stringi-map.c \
+ src/libpspp/stringi-map.h \
+ src/libpspp/stringi-set.c \
+ src/libpspp/stringi-set.h \