Re: question and bug report for gprolog 1.2.14

[Vic Bancroft]

I am not sure why it is not a problem under MacOS X, but we can not use,

  cvs server: Diffing .
  Index: bc_supp.h
  ===================================================================
  RCS file: /cvsroot/gprolog/src/src/BipsPl/bc_supp.h,v
  retrieving revision 1.5
  diff -r1.5 bc_supp.h
  49a50,51
  > #if defined(M_powerpc_darwin)
  > 
  53a56,61
  > 
  > #else
  > 
  > extern unsigned *byte_code;
  > 
  > #endif
  Index: parse_supp.h
  ===================================================================
  RCS file: /cvsroot/gprolog/src/src/BipsPl/parse_supp.h,v
  retrieving revision 1.7
  diff -r1.7 parse_supp.h
  69a70
  > #if defined(M_powerpc_darwin)
  76a78,83
  > #else
  > 
  > extern int last_read_line;
  > extern int last_read_col;
  > 
  > #endif

Since the make fails to create pl2wam as follows, 

  gplc -o pl2wam --no-fd-lib --min-bips pl2wam.o read_file.o bip_list.o 
syn_sugar.o internal.o code_gen.o reg_alloc.o inst_codif.o first_arg.o 
indexing.o wam_emit.o
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(read_c.o): In 
function `Last_Read_Start_Line_Column_2':
  read_c.o(.text+0x8eb): undefined reference to `last_read_line'
  read_c.o(.text+0x905): undefined reference to `last_read_col'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(stream_supp.o): In 
function `TTY_Getc':
  stream_supp.o(.text+0x630): undefined reference to `last_read_col'
  stream_supp.o(.text+0x646): undefined reference to `last_read_line'
  stream_supp.o(.text+0x684): undefined reference to `last_read_line'
  stream_supp.o(.text+0x68a): undefined reference to `last_read_col'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(stream_supp.o): In 
function `Stream_Get_Key':
  stream_supp.o(.text+0x94a): undefined reference to `last_read_col'
  stream_supp.o(.text+0x95d): undefined reference to `last_read_line'
  stream_supp.o(.text+0x980): undefined reference to `last_read_line'
  stream_supp.o(.text+0x988): undefined reference to `last_read_col'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(parse_supp.o): In 
function `Read_Term':
  parse_supp.o(.text+0x28): undefined reference to `last_read_line'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(parse_supp.o): In 
function `Parse_Term':
  parse_supp.o(.text+0x1c5): undefined reference to `last_read_line'
  parse_supp.o(.text+0x1d2): undefined reference to `last_read_line'
  parse_supp.o(.text+0x1dc): undefined reference to `last_read_col'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(parse_supp.o): In 
function `Read_Token':
  parse_supp.o(.text+0xc41): undefined reference to `last_read_line'
  parse_supp.o(.text+0xc4b): undefined reference to `last_read_col'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(parse_supp.o): In 
function `Read_Atom':
  parse_supp.o(.text+0xdfb): undefined reference to `last_read_line'
  parse_supp.o(.text+0xe05): undefined reference to `last_read_col'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(parse_supp.o): In 
function `Read_Integer':
  parse_supp.o(.text+0xe66): undefined reference to `last_read_line'
  parse_supp.o(.text+0xe70): undefined reference to `last_read_col'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(parse_supp.o): In 
function `Read_Number':
  parse_supp.o(.text+0xec9): undefined reference to `last_read_line'
  parse_supp.o(.text+0xed3): undefined reference to `last_read_col'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(dynam_supp.o): In 
function `Add_Dynamic_Clause':
  dynam_supp.o(.text+0x1a2): undefined reference to `byte_code'
  dynam_supp.o(.text+0x1ae): undefined reference to `byte_code'
  /usr/home/bancroft/src/gprolog/src/src/BipsPl/libbips_pl.a(bc_supp.o): In 
function `BC_Stop_Emit_0':
  bc_supp.o(.text+0x15a3): undefined reference to `byte_code'
  collect2: ld returned 1 exit status
  compilation failed
  make[1]: *** [pl2wam] Error 1
  make[1]: Leaving directory `/usr/home/bancroft/src/gprolog/src/src/Pl2Wam'
  make: *** [all] Error 1

It would appear that there are nearly 140 such variables.

  address@hidden EnginePl]$ grep "^int.*[^)C];" gprolog.h | wc -l
      135

Why are these three problematic ? 
  
more, 
l8r,

------------------------------------------------------------------- 
Victor Bancroft, Principal Engineer, Zvolve Systems [v]770.551.4505 
1050 Crown Pointe Pkwy, Suite 300, Atlanta GA 30338 [f]770.551.4509 
Fellow, Artificial Intelligence Center              [v]706.542-0358 
Athens, Georgia  30602, U.S.A           http://ai.uga.edu/~bancroft