xdavidliu@cudarig:~/Downloads/mit-scheme/src$ make -j4 cross-target
(cd microcode && make all)
make[1]: Entering directory '/home/xdavidliu/Downloads/mit-scheme/src/microcode'
rm -f cmpauxmd.s.tmp
gcc -DHAVE_CONFIG_H -DMIT_SCHEME -DDEFAULT_LIBRARY_PATH=\"/home/xdavidliu/scheme-from-git/lib/mit-scheme-x86-64\" -I. -I. -O3  -frounding-math -Wall -Wclobbered -Wempty-body -Wignored-qualifiers -Wimplicit-fallthrough -Wmissing-field-initializers -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Woverride-init -Wpointer-arith -Wredundant-decls -Wshift-negative-value -Wtype-limits -Wundef -Wuninitialized -Wwrite-strings -Wno-error=stringop-truncation -Werror -o termcap.o -c termcap.c
gcc -DHAVE_CONFIG_H -DMIT_SCHEME -DDEFAULT_LIBRARY_PATH=\"/home/xdavidliu/scheme-from-git/lib/mit-scheme-x86-64\" -I. -I. -O3  -frounding-math -Wall -Wclobbered -Wempty-body -Wignored-qualifiers -Wimplicit-fallthrough -Wmissing-field-initializers -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Woverride-init -Wpointer-arith -Wredundant-decls -Wshift-negative-value -Wtype-limits -Wundef -Wuninitialized -Wwrite-strings -Wno-error=stringop-truncation -Werror -o tparam.o -c tparam.c
gcc -DHAVE_CONFIG_H -DMIT_SCHEME -DDEFAULT_LIBRARY_PATH=\"/home/xdavidliu/scheme-from-git/lib/mit-scheme-x86-64\" -I. -I. -O3  -frounding-math -Wall -Wclobbered -Wempty-body -Wignored-qualifiers -Wimplicit-fallthrough -Wmissing-field-initializers -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Woverride-init -Wpointer-arith -Wredundant-decls -Wshift-negative-value -Wtype-limits -Wundef -Wuninitialized -Wwrite-strings -Wno-error=stringop-truncation -Werror -o cmpintmd.o -c cmpintmd.c
./makegen/m4.sh m4 -P __linux__,1 -P SUPPRESS_LEADING_UNDERSCORE,1 -P __ELF__,1 cmpauxmd.m4 > cmpauxmd.s.tmp && mv -f cmpauxmd.s.tmp cmpauxmd.s
gcc -DHAVE_CONFIG_H -DMIT_SCHEME -DDEFAULT_LIBRARY_PATH=\"/home/xdavidliu/scheme-from-git/lib/mit-scheme-x86-64\" -I. -I. -O3  -frounding-math -Wall -Wclobbered -Wempty-body -Wignored-qualifiers -Wimplicit-fallthrough -Wmissing-field-initializers -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Woverride-init -Wpointer-arith -Wredundant-decls -Wshift-negative-value -Wtype-limits -Wundef -Wuninitialized -Wwrite-strings -Wno-error=stringop-truncation -Werror -o comutl.o -c comutl.c
tparam.c: In function ‘tparam1’:
tparam.c:228:11: error: this statement may fall through [-Werror=implicit-fallthrough=]
        if (tem < 100)
           ^
tparam.c:230:6: note: here
      case '3':  /* %3 means output in decimal, 3 digits. */
      ^~~~
tparam.c:236:14: error: this statement may fall through [-Werror=implicit-fallthrough=]
        *op++ = tem / 100 + '0';
        ~~~~~~^~~~~~~~~~~~~~~~~
tparam.c:237:6: note: here
      case '2':  /* %2 means output in decimal, 2 digits. */
      ^~~~
tparam.c:249:11: error: this statement may fall through [-Werror=implicit-fallthrough=]
        if (tem >= 96)
           ^
tparam.c:254:6: note: here
      case '+':  /* %+x means add character code of char x */
      ^~~~
tparam.c:255:12: error: this statement may fall through [-Werror=implicit-fallthrough=]
        tem += *p++;
            ^~
tparam.c:256:6: note: here
      case '.':  /* %. means output as character */
      ^~~~
tparam.c:270:14: error: this statement may fall through [-Werror=implicit-fallthrough=]
        *op++ = tem | 0200;
        ~~~~~~^~~~~~~~~~~~
tparam.c:271:6: note: here
      case 'f':  /* %f means discard next arg */
      ^~~~
termcap.c:147:1: error: return type defaults to ‘int’ [-Werror=implicit-int]
 memory_out ()
 ^~~~~~~~~~
termcap.c: In function ‘convert_ospeed’:
termcap.c:181:24: error: implicit declaration of function ‘OS_baud_index_to_rate’ [-Werror=implicit-function-declaration]
   unsigned int rate = (OS_baud_index_to_rate (os));
                        ^~~~~~~~~~~~~~~~~~~~~
termcap.c:181:24: error: nested extern declaration of ‘OS_baud_index_to_rate’ [-Werror=nested-externs]
termcap.c: At top level:
termcap.c:330:1: error: return type defaults to ‘int’ [-Werror=implicit-int]
 tputs (string, nlines, outfun)
 ^~~~~
termcap.c: In function ‘tputs’:
termcap.c:338:5: error: ‘return’ with no value, in function returning non-void [-Werror]
     return;
     ^~~~~~
termcap.c:330:1: note: declared here
 tputs (string, nlines, outfun)
 ^~~~~
termcap.c: In function ‘tgetent’:
termcap.c:457:49: error: passing argument 2 of ‘find_capability’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
       indirect = tgetst1 (find_capability (tem, "tc"), 0);
                                                 ^~~~
termcap.c:203:36: note: expected ‘char *’ but argument is of type ‘const char *’
 find_capability (char * bp, char * cap)
                             ~~~~~~~^~~
termcap.c:479:9: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
     tem = "/etc/termcap";
         ^
termcap.c:540:45: error: passing argument 2 of ‘find_capability’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
       term = tgetst1 (find_capability (bp2, "tc"), 0);
                                             ^~~~
termcap.c:203:36: note: expected ‘char *’ but argument is of type ‘const char *’
 find_capability (char * bp, char * cap)
                             ~~~~~~~^~~
termcap.c:554:12: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
     return (int) bp;
            ^
termcap.c: In function ‘scan_file’:
termcap.c:570:9: error: unused variable ‘tem’ [-Werror=unused-variable]
   char *tem;
         ^~~
cc1: all warnings being treated as errors
make[1]: *** [Makefile:180: tparam.o] Error 1
make[1]: *** Waiting for unfinished jobs....
cc1: all warnings being treated as errors
make[1]: *** [Makefile:180: termcap.o] Error 1
rm cmpauxmd.s
make[1]: Leaving directory '/home/xdavidliu/Downloads/mit-scheme/src/microcode'
make: *** [Makefile:796: microcode/scheme] Error 2