From: Mavi Gozler <MaviGozler AT yahoo DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: RSXNTDJ project building difficulties
Date: Wed, 13 Oct 1999 08:40:07 GMT
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"Johan Venter" <jventer AT writeme DOT com> wrote:
> Mavi Gozler <MaviGozler AT yahoo DOT com> wrote in message
> news:7tuuqf$dqs$1 AT nnrp1 DOT deja DOT com...
> >
> > The question is:  how can the configuration be adjusted or deal with
> > the undefined references?  The makefile is rather big to post, but
it
> > can be posted it if there aren't some things that can be done to
check
> > the system in general or the problem is not evident here.
>
> You've failed to mention what version of RSXNTDJ you are using (1.5
is the
> latest). Please see my RSXNTDJ HOWTO at http://surf.to/rsxntdj for
information
> on setting it up correctly.
>
> --
> Johan Venter
> ICQ 3643877 - jventer AT writeme DOT com
> The TPU DJGPP Interest Group - http://surf.to/djgppig
> The RSXNTDJ 1.5 HOWTO - http://surf.to/rsxntdj

Yes, I realized I had forgotten to give vital information about what
tools I was using just after I posted the message.

RSXNTDJ is ver 1.50 with all the fixes and patches performed (without
difficulty) and obtained from your web site.

Most everything else is the latest as well:
C:\>gcc -v
Reading specs from c:/djgpp/rsxntdj/lib/specs
gcc driver version 2.95.1 19990816 (release) executing gcc version 2.8.1
C:\>ld -v
GNU ld version 2.8.1 (with BFD 2.8.1)
C:\>ldrsx -v
ld version 2.7 (with BFD 2.7)
C:\>cpp -v
GNU CPP version 2.7.2.1 (80386, BSD syntax)
#include "..." search starts here:
#include <...> search starts here:
 c:\djgpp\rsxntdj\INCLUDE\MSSDK
 d:\MSSDK\INCLUDE
 c:\djgpp\rsxntdj\INCLUDE\WIN32
 c:\djgpp\rsxntdj\INCLUDE
 /usr/local/include
 /usr/local/go32/include
 /usr/local/lib/gcc-lib/go32/2.7.2.1/include
 /usr/include
End of search list.
C:\>make -v
GNU Make version 3.76.1, by Richard Stallman and Roland McGrath.

DJ library is 2.02.
(Did I miss something?)

Although I now have another (new) problem to describe below, I solved
the problem I originally posted:  what I found was that I had specified
in the makefile as an include directory (-I option to gccw32) the
directory '/djgpp/include', and so in particular the 'ctype.h' was
being read from there rather than from '/djgpp/rsxntdj/include' where
it should have been read as a standard header.

But the new problem may be with a confusion of which link editor (ld)
to use.  In my makefile, I have the following lines (edited a bit here):

--------start of makefile contents------
PROJECT = my.exe
DEFINES = VERBOSE=2 NDBM
INCLUDES = /projects/inifsys /projects/src/crypto /projects/ndbm \
         /projects/src/mss12 /projects/src/misc
PROJ_BASENAMES = qsupport bldpage draw gif html http ll_msort \
               qc2gif qcdbm qcfonts admin readqc
LIBS    = /projects/qc/fonts/librfontw.a /projects/src/misc/libgenw.a \
               /projects/src/mss12/libmssw.a /projects/ndbm/libndbmw.a \
               /projects/inifsys/libiniw.a
LIBPATHS =
OBJECTS_DIR = $(TMP)/obj/

ifdef check
LD = ld
else
LD = ldrsx
endif

OBJECTS_DIR := $(subst \,/,$(OBJECTS_DIR))
SOURCES = $(addsuffix .c,$(PROJ_BASENAMES))
OBJECTS = $(addsuffix .o,$(PROJ_BASENAMES))
ifdef debug
CFLAGS = -Wall -g $(addprefix -D,$(DEFINES)) $(addprefix -I,$(INCLUDES))
LDFLAGS = -g $(addprefix -L,$(LIBPATHS))
else
CFLAGS = -Wall -O $(addprefix -D,$(DEFINES)) $(addprefix -I,$(INCLUDES))
LDFLAGS = $(addprefix -L,$(LIBPATHS))
endif
CFLAGS := $(CFLAGS) $(MTFLAG) $(DLLFLAGS) $(CRTFLAG)

all: $(PROJECT)

ifdef check
$(PROJECT): $(addprefix $(OBJECTS_DIR),$(OBJECTS)) $(LIBS)
  echo Link Editor is 'ld':  Do not use to build Windows executables!
  echo Use only to check unresolved externals
  echo make sure you use 'ldrsx' to build the final executable!
  $(LD) $(LDFLAGS) -o $@ $(addprefix $(OBJECTS_DIR),$(OBJECTS))$(LIBS)
else
$(PROJECT): $(addprefix $(OBJECTS_DIR),$(OBJECTS))$(LIBS)
   echo Link Editor is 'ldrsx':  gives no error info on unresolved
   echo externals. Use 'make check=1' to get regular 'ld' to check for
   echo unresovled externals, then just 'make' for building the final
   echo executable
  $(LD) $(LDFLAGS) -o $@ $(addprefix $(OBJECTS_DIR),$(OBJECTS)) $(LIBS)
endif

$(addprefix $(OBJECTS_DIR),%.o): %.c
    $(CC) $(CFLAGS) -c -o $@ $<

clean:
     $(RM) $(addprefix $(OBJECTS_DIR),$(OBJECTS)) $(PROJECT)

--------end of makefile contents------

You can see that I use the ld that comes "standard" as the one to check
for missing references using a 'make check=1' call;  thereafter a
simple 'make' is intended to call the 'ld' that comes with RSXNTDJ,
which is named 'ldrsx' in the /djgpp/bin directory.

The output from the 'make check=1' call produces a huge stream of
undefined references, namely to standard C library calls, such as all
calls in stdlib (free, malloc, exit, etc.), in string (strcmp, strdup,
strcpy, strcat, etc.), in ctype (namely to _ctype), and so on.

Then just entering 'make' alone follows, and the output is:
C:\>make
[echoed reminder text deleted]
ldrsx  -o my.exe c:/temp/obj/qsupport.o c:/temp/obj/bldpage.o
  c:/temp/obj/draw.o c:/temp/obj/gif.o c:/temp/obj/html.o
  c:/temp/obj/http.o c:/temp/obj/ll_msort.o c:/temp/obj/qc2gif.o
  c:/temp/obj/qcdbm.o c:/temp/obj/qcfonts.o c:/temp/obj/qcuser.o
  c:/temp/obj/admin.o c:/temp/obj/readqc.o
  /projects/qc/fonts/librfontw.a /projects/src/misc/libgenw.a
  /projects/src/mss12/libmssw.a /projects/ndbm/libndbmw.a
  /projects/inifsys/libiniw.a
C:\DJGPP\BIN/ldrsx.exe: warning: cannot find entry symbol start;
defaulting to 000018d0

The unresolved standard C library calls and the warning from ldrsx.exe
means I am not going to risk running the EXE file it produced.

Please note this is a console ("character mode") Win32 application,
with only a main() and no WinMain() or DLLEntryPoint() [yet], and
gccw32 is invoked with no option '-Z' passed during the making of the
sources (either in libraries or main project).

The question is how to get clean output from the call to 'ld.exe' and
to 'ldrsx.exe'.

Thanks for your assistance.


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