unistr/base
configure.ac:
-gl_LIBUNISTRING_LIBSOURCE([0.9], [unistr/u32-strrchr.c])
+gl_LIBUNISTRING_MODULE([0.9], [unistr/u32-strrchr])
Makefile.am:
+if LIBUNISTRING_COMPILE_UNISTR_U32_STRRCHR
+lib_SOURCES += unistr/u32-strrchr.c
+endif
Include:
"unistr.h"