How to compile this program on Big Sur?

[prRZ5F4LXZ]

My OS is Big Sur. I got the following error. Does anybody know how to fix it?

$ gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/4.2.1
Apple clang version 12.0.5 (clang-1205.0.22.11)
Target: x86_64-apple-darwin20.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
$ make
cd awka; make
make[1]: Entering directory '/tmp/awka/awka'
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o translate.o translate.c
translate.c:111:11: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
  while(c = *p++){
        ~~^~~~~~
translate.c:111:11: note: place parentheses around the assignment to silence this warning
  while(c = *p++){
          ^
        (       )
translate.c:111:11: note: use '==' to turn this assignment into an equality comparison
  while(c = *p++){
          ^
          ==
1 warning generated.
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o awka.o awka.c
expect 8 shift/reduce conflicts
bison -y  -d parse.y
parse.y: warning: 8 shift/reduce conflicts [-Wconflicts-sr]
parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
mv y.tab.c parse.c
if cmp -s y.tab.h parse.h ;\
then rm y.tab.h ;\
else mv y.tab.h parse.h ; fi
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o parse.o parse.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o scan.o scan.c
scan.c:1128:19: warning: initializing 'unsigned char *' with an expression of type 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
   unsigned char *s = e_flag ? rm_escape(string_buff) : string_buff ;
                  ^   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
scan.c:1130:34: warning: passing 'unsigned char *' to parameter of type 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
   yylval.ptr = (PTR) new_STRING(s);
                                 ^
./memory.h:35:33: note: passing argument to parameter here
STRING *PROTO(new_STRING, (char*)) ;
                                ^
2 warnings generated.
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o memory.o memory.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o hash.o hash.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o code.o code.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o bi_funct.o bi_funct.c
bi_funct.c:164:27: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
            while (target = strchr(target, k))
                   ~~~~~~~^~~~~~~~~~~~~~~~~~~
bi_funct.c:164:27: note: place parentheses around the assignment to silence this warning
            while (target = strchr(target, k))
                          ^
                   (                         )
bi_funct.c:164:27: note: use '==' to turn this assignment into an equality comparison
            while (target = strchr(target, k))
                          ^
                          ==
bi_funct.c:172:18: warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
   while (target = strchr(target, k))
          ~~~~~~~^~~~~~~~~~~~~~~~~~~
bi_funct.c:172:18: note: place parentheses around the assignment to silence this warning
   while (target = strchr(target, k))
                 ^
          (                         )
bi_funct.c:172:18: note: use '==' to turn this assignment into an equality comparison
   while (target = strchr(target, k))
                 ^
                 ==
2 warnings generated.
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o da.o da.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o error.o error.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o init.o init.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o bi_vars.o bi_vars.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o cast.o cast.c
gcc -O -Dawka_LIBDIR=\"/usr/local/lib\" -Dawka_INCDIR=\"/usr/local/include\"   -c -o print.o print.c
print.c:52:11: error: expected parameter declarator
int PROTO(sprintf, (char *, const char *,...)) ;
          ^
print.c:52:11: error: expected ')'
print.c:52:11: note: to match this '('
print.c:52:11: error: conflicting types for '__builtin___sprintf_chk'
int PROTO(sprintf, (char *, const char *,...)) ;
          ^
print.c:52:11: note: '__builtin___sprintf_chk' is a builtin with type 'int (char *, int, unsigned long, const char *, ...)'
3 errors generated.
make[1]: *** [<builtin>: print.o] Error 1
make[1]: Leaving directory '/tmp/awka/awka'
make: *** [Makefile:48: awka_exe] Error 2

[prRZ5F4LXZ]

On MacOS, the lines 48-53 in awka/print.c can be commented out like this to make the compilation successful. It seems that the current configure file has trouble to deal with stdio.h on MacOS. But I am not sure what is the best way to fix this problem. Somebody who is more familar with configure may have a better fix.

48 //#ifdef NO_FPRINTF_IN_STDIO
49 //int PROTO(fprintf, (FILE *, const char *,...)) ;
50 //#endif
51 //#ifdef NO_SPRINTF_IN_STDIO
52 //int PROTO(sprintf, (char *, const char *,...)) ;
53 //#endif