🚀 go-pugleaf

[Please respond to bray@wcuvax1.wcu.edu]

While making libg++2.2, I came upon the following multiply-defined
label problem. Note that this does not occur without optimization, and
does occur with both -O and -O2. An examination of the .s files generated
with optimization shows labels, such as .L_b20 and .L_b26, to occur twice.
This does not occur in the .s files generated without optimization.

--Jim

gcc 2.3.1: i486-sysv4
libg++ 2.2

pwd
/usr/local/libg++

elentari$make
/bin/sh ./config.status
Created "Makefile" in / using "config/mh-sysv4"
[ stuff deleted ]
gcc -g -O2 -nostdinc++ -I.. -I. -I./../iostream -I./../g++-include  -c
Obstack.cc
Assembler: Obstack.cc
        aline 1878      : multiply defined label
        aline 2556      : multiply defined label
        aline 2859      : multiply defined label
        aline 3227      : multiply defined label
        aline 3614      : multiply defined label
        aline 3951      :  : multiply defined label
make[2]: *** [Obstack.o] Error 1
make[1]:*** [in-src] Error 1
make: *** [all-libg++] Error 1

gcc -g -O2 -S -nostdinc++ -I.. -I. -I./../iostream -I./../g++-include
-c Obstack.cc


>From Obstack.s:
        .file   "Obstack.cc"
        .version        "01.01"
gcc2_compiled.:

[Stuff deleted]

        pushl %ebx
        movl 8(%ebp),%ebx
        movl 12(%ebp),%esi
.L_b20:
.L_LC36:

[Stuff deleted]

        .2byte  0xffff
        .4byte  .L_LC37-.L_text_b
        .previous
.L_b20: [[[Line 1878]]]
        xorb %al,%al
        movl %esi,%edi

[Stuff deleted]

        movl 8(%ebp),%ebx
        movb 12(%ebp),%dl
        movb %dl,-4(%ebp)
.L_b26:
.L_LC57:

.section        .line
        .4byte  158     / /Obstack.h:158

[stuff deleted]

        .2byte  0xffff
        .4byte  .L_LC58-.L_text_b
        .previous
.L_b26: [[[Line 2556]]]
.L_LC59:

.section        .line