Re: [9fans] Compiling ken-cc on Linux

[Vasudev Kamath <vasudev@copyninja.info>]

Ryan Gonzalez <rymg19@gmail.com> writes:

> Try going to the top of mathi.h and putting:
>
> #undef isnan
> #undef isinf
>
> Stupid macros that don't look like macros.

That worked. Even I didn't realize those as macros. But now I land in
new error.

/usr/include/features.h:148:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
 # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
   ^
In file included from /home/vasudev/Documents/C_programming/compilers/9-cc/Linux/386/include/lib9.h:19:0,
                 from fdlibm/fdlibm.h:2,
                 from fdlibm/s_isnan.c:20:
fdlibm/s_isnan.c:22:6: error: expected identifier or ‘(’ before ‘sizeof’
  int isnan(double x)
      ^
mk: cc -c -m32 ...  : exit status=exit(1)
mk: for j in ...  : exit status=exit(1)

So I went and put #undef isnan again before #include "fdlibm.h" in
s_isnan.c and now I stop at a new error, again not mentioned in your
reported issue.

Posix.c: In function ‘myctime’:
Posix.c:9:9: warning: implicit declaration of function ‘ctime’ [-Wimplicit-function-declaration]
  return ctime(&t);
         ^
Posix.c:9:9: warning: return makes pointer from integer without a cast [-Wint-conversion]
cc -m32  -o o.out ar.o Posix.o /home/vasudev/Documents/C_programming/compilers/9-cc/Linux/386/lib/libmach.a /home/vasudev/Documents/C_programming/compilers/9-cc/Linux/386/lib/libbio.a /home/vasudev/Documents/C_programming/compilers/9-cc/Linux/386/lib/lib9.a 
ar.o: In function `page':
/home/vasudev/Documents/C_programming/compilers/9-cc/src/cmd/iar/ar.c:1120: warning: the use of `mktemp' is dangerous, better use `mkstemp' or `mkdtemp'
/home/vasudev/Documents/C_programming/compilers/9-cc/Linux/386/lib/libmach.a(obj.o):(.rodata+0x198): undefined reference to `_is9'
/home/vasudev/Documents/C_programming/compilers/9-cc/Linux/386/lib/libmach.a(obj.o):(.rodata+0x19c): undefined reference to `_read9'
collect2: error: ld returned 1 exit status
mk: cc -m32  ...  : exit status=exit(1)
mk: for j in ...  : exit status=exit(1)
mk: for j in ...  : exit status=exit(1)

I guess this is because of commenting out 9obj.c from compilation. So I
modified 9obj.c, below is the patch

vasudev@rudra:~/Documents/C_programming/compilers/9-cc$ hg diff src/libmach/obj.c 
diff -r 65fb8bb56c59 src/libmach/obj.c
--- a/src/libmach/obj.c Thu Apr 23 11:11:38 2015 +0100
+++ b/src/libmach/obj.c Fri Nov 27 22:44:29 2015 +0530
@@ -24,14 +24,14 @@
 int    _is5(char*),
        _is6(char*),
        _is8(char*),
-       _is9(char*),
+       /* _is9(char*), */
        _isk(char*),
        _isq(char*),
        _isv(char*),
        _read5(Biobuf*, Prog*),
        _read6(Biobuf*, Prog*),
        _read8(Biobuf*, Prog*),
-       _read9(Biobuf*, Prog*),
+       /* _read9(Biobuf*, Prog*), */
        _readk(Biobuf*, Prog*),
        _readq(Biobuf*, Prog*),
        _readv(Biobuf*, Prog*);
@@ -63,7 +63,7 @@
        /*[ObjSparc64]*/        {0, 0,},
        /*[ObjAmd64]*/  "amd64 .6",     _is6, _read6,
        /*[ObjSpim]*/   {0, 0,},
-       /*[ObjPower64]*/        "power64 .9",   _is9, _read9,
+       /*[ObjPower64]*/        /* "power64 .9",        _is9, _read9, */
        /*[Maxobjtype]*/        0, 0
 };

That took compilation further but now it breaks at point 4 in your
issue. I hope I won't encounter more new issues :-).

Cheers,