+/^\${libsrc}make-docfile:/c\
+${libsrc}make-doc.exe:\
+ cd ..\
+ cd lib-src\
+ $(MAKE) ${MFLAGS} make-docfile -W make-docfile.c\
+ cd ..\
+ cd src
+/^ cd \${libsrc}; \${MAKE} \${MFLAGS} make-docfile/d
+/\${libsrc}make-docfile/s/-docfile[ ]/-doc.exe /