==== do-reg ====
cc -O2 -pipe  -I/home/src/regress/lib/libc/regex/../../../../lib/libc/regex -DREDEBUG -DPOSIX_MISTAKE -D'DEF_WEAK(x)=asm("")' -g  -MD -MP  -c /home/src/regress/lib/libc/regex/main.c
/home/src/regress/lib/libc/regex/main.c:128:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
regress(in)
^
/home/src/regress/lib/libc/regex/main.c:205:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
try(f0, f1, f2, f3, f4, opts)
^
/home/src/regress/lib/libc/regex/main.c:319:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
options(type, s)
^
/home/src/regress/lib/libc/regex/main.c:376:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
opt(c, s)
^
/home/src/regress/lib/libc/regex/main.c:388:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
fixstr(p)
^
/home/src/regress/lib/libc/regex/main.c:410:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
check(str, sub, should)
^
/home/src/regress/lib/libc/regex/main.c:489:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
eprint(err)
^
/home/src/regress/lib/libc/regex/main.c:505:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
efind(name)
^
8 warnings generated.
cc -O2 -pipe  -I/home/src/regress/lib/libc/regex/../../../../lib/libc/regex -DREDEBUG -DPOSIX_MISTAKE -D'DEF_WEAK(x)=asm("")' -g  -MD -MP  -c /home/src/regress/lib/libc/regex/split.c
cc -O2 -pipe  -I/home/src/regress/lib/libc/regex/../../../../lib/libc/regex -DREDEBUG -DPOSIX_MISTAKE -D'DEF_WEAK(x)=asm("")' -g  -MD -MP  -c /home/src/regress/lib/libc/regex/debug.c
/home/src/regress/lib/libc/regex/debug.c:21:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
regprint(r, d)
^
/home/src/regress/lib/libc/regex/debug.c:57:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
s_print(g, d)
^
/home/src/regress/lib/libc/regex/debug.c:198:1: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
regchar(ch)
^
3 warnings generated.
cc -O2 -pipe  -I/home/src/regress/lib/libc/regex/../../../../lib/libc/regex -DREDEBUG -DPOSIX_MISTAKE -D'DEF_WEAK(x)=asm("")' -g  -MD -MP  -c /home/src/regress/lib/libc/regex/../../../../lib/libc/regex/regcomp.c
cc -O2 -pipe  -I/home/src/regress/lib/libc/regex/../../../../lib/libc/regex -DREDEBUG -DPOSIX_MISTAKE -D'DEF_WEAK(x)=asm("")' -g  -MD -MP  -c /home/src/regress/lib/libc/regex/../../../../lib/libc/regex/regerror.c
cc -O2 -pipe  -I/home/src/regress/lib/libc/regex/../../../../lib/libc/regex -DREDEBUG -DPOSIX_MISTAKE -D'DEF_WEAK(x)=asm("")' -g  -MD -MP  -c /home/src/regress/lib/libc/regex/../../../../lib/libc/regex/regexec.c
cc -O2 -pipe  -I/home/src/regress/lib/libc/regex/../../../../lib/libc/regex -DREDEBUG -DPOSIX_MISTAKE -D'DEF_WEAK(x)=asm("")' -g  -MD -MP  -c /home/src/regress/lib/libc/regex/../../../../lib/libc/regex/regfree.c
cc   -o re main.o split.o debug.o regcomp.o regerror.o regexec.o regfree.o 
./re < /home/src/regress/lib/libc/regex/tests

==== do-reg-long ====
./re -el < /home/src/regress/lib/libc/regex/tests

==== do-reg-backref ====
./re -er < /home/src/regress/lib/libc/regex/tests