bug#25381: sed 4.3: Test suite partially fails to compile when configured with --with-included-regex.

[Juan Manuel Guerrero]

This is another issue I noted when trying to port sed to FreeDOS using DJGPP
but it may be interesting for other OS too and can be reproduced with linux.
If I configure with the --with-included-regex option at least no one of the
bug-regex*.c files are linked with with libsed.a.  An inspection of the
makefile shows that entries like: testsuite_bug_regex*_DEPENDENCIES are
missing.  This is not he case for get-mb-cur-max.c and test-mbrtowc.c.
There may be more .c files where these specific dependecies are missing.
I have not inevstigated further.  The compilation of the required binaries
fail with the following error message:

depbase=`echo testsuite/bug-regex7.o | sed 's|[^/]*$|.deps/&|;s|\.[^.]*$||'` && 
\
gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I..  -I.. -I../lib -I./lib -I./sed   -g -O2 
-MT testsuite/bug-regex7.o -MD -MP -MF $depbase.Tpo -c -o 
testsuite/bug-regex7.o  ../testsuite/bug-regex7.c; \
if test $? = 0; then mv -f $depbase.Tpo $depbase.Po; \
  else rm -f $depbase.Tpo; false; fi
gcc -std=gnu99  -g -O2   -o testsuite/bug-regex7 testsuite/bug-regex7.o
testsuite/bug-regex7.o: In function `main':
/home/jmg/_shared_folder_/portieren/sed-4.3/_/../testsuite/bug-regex7.c:43: 
undefined reference to `rpl_re_compile_pattern'
/home/jmg/_shared_folder_/portieren/sed-4.3/_/../testsuite/bug-regex7.c:68: 
undefined reference to `rpl_re_compile_pattern'
/home/jmg/_shared_folder_/portieren/sed-4.3/_/../testsuite/bug-regex7.c:51: 
undefined reference to `rpl_re_search'
/home/jmg/_shared_folder_/portieren/sed-4.3/_/../testsuite/bug-regex7.c:76: 
undefined reference to `rpl_re_match'
collect2: ld returned 1 exit status
make[3]: *** [testsuite/bug-regex7] Error 1
make[3]: Leaving directory `/home/jmg/_shared_folder_/portieren/sed-4.3/_'
make[2]: *** [check-am] Error 2
make[2]: Leaving directory `/home/jmg/_shared_folder_/portieren/sed-4.3/_'
make[1]: *** [check-recursive] Error 1
make[1]: Leaving directory `/home/jmg/_shared_folder_/portieren/sed-4.3/_'
make: *** [check] Fehler 2


Regards,
Juan M. Guerrero