Bug#27886: marked as done (gcc-3.0 compilation problems (tokenizer.cc)) by "F at lk Brettschneider" <gigafalk at yahoo.com>

[Stephan Kulow]

Your message with subj: fixed in version 2.0

"F at lk Brettschneider" wrote:
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has caused the attached bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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Stephan Kulow
(administrator, KDE bugs database)

Received: (at submit) by bugs.kde.org; 29 Jun 2001 15:00:53 +0000
Received: (qmail 17854 invoked by uid 33); 29 Jun 2001 15:00:53 -0000
Date: 29 Jun 2001 15:00:53 -0000
Message-ID: <20010629150053.17853.qmail at master.kde.org>
To: submit at bugs.kde.org
Subject: gcc-3.0 compilation problems (tokenizer.cc)
From: pienaar at bme.ri.ccf.org

Package:           kdevelop
Version:           1.4.1 (using KDE 2.1.1 )
Severity:          normal
Installed from:    Compiled From Sources
Compiler:          gcc-3.0
OS:                Linux
OS/Compiler notes: Not Specified

After "upgrading" to gcc-3.0, I noticed that my "old" kdevelop-1.4 (built with gcc 2.95.2) seemed to be having problems with code compiled with gcc-3.0.

Specifically, the integrated debugger was ignoring all breakpoints, rendering it largely useless.

I decided to rebuild kdevelop with gcc-3.0 (of course with rebuilt (gcc-3.0) Qt 2.3.1, and necessary kde-2.1.1/2 packages).

I had problems with arts-related issues in kdelibs-2.1.2 (this has already been reported as a bug).

With kdevelop, compilation failed with tokenizer.cc (<kdevelop-1.4.1/kdevelop/classparser/tokenizer.cc).

Specific problem:

flex -+ -otokenizer.cc ./tokenizer.l
g++ -DHAVE_CONFIG_H -I. -I. -I../.. -I/home/pienaar/arch/Linux/kde-2.1.1/include -I/home/pienaar/arch/Linux/qt-2.3.1/include -I/usr/X11R6/include     -O2 -fno-exceptions -fno-check-new -Wall -pedantic -W -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -Wno-long-long -Wnon-virtual-dtor
-fno-builtin  -c tokenizer.cc
In file included from /usr/include/FlexLexer.h:47,
                 from tokenizer.cc:238:
/home/pienaar/arch/Linux/include/g++-v3/backward/iostream.h:36: using directive
   `istream' introduced ambiguous type `istream'
tokenizer.cc: In member function `virtual int yyFlexLexer::yylex()':
tokenizer.cc:1318: cannot convert `std::istream*' to `istream*' in assignment
tokenizer.cc:905: warning: label `find_rule' defined but not used
tokenizer.cc: In member function `void yyFlexLexer::yy_load_buffer_state()':
tokenizer.cc:1849: cannot convert `istream*' to `std::istream*' in assignment
tokenizer.cc: In member function `void
   yyFlexLexer::yy_init_buffer(yy_buffer_state*, std::istream*)':
tokenizer.cc:1900: cannot convert `std::istream*' to `istream*' in assignment
/home/pienaar/arch/Linux/include/g++-v3/bits/locale_facets.tcc: At top level:
tokenizer.cc:2070: warning: `void* yy_flex_realloc(void*, unsigned int)'
   defined but not used
make[3]: *** [tokenizer.o] Error 1

I was able to recreate the same error with kdevelop-20010629 and gideon-0.2; in both instances `tokenizer' was the problem (although in these two packages, it was located in a slightly different path).

I was able to "fix" the errors in lines 1318 and 1849 by explicit typecasting to (iostream*):

from:
	yy_current_buffer->yy_input_file = yyin;

to:	(iostream*) yy_current_buffer->yy_input_file = yyin;

But the real error seems to be:
/home/pienaar/arch/Linux/include/g++-v3/backward/iostream.h:36: using directive
   `istream' introduced ambiguous type `istream'

This seems endemic to gcc-3.0 and its stream-type, and is clearly quite out of my league.

Cheers
Rudolph

+-----------------------------------------------------------------------+
| Rudolph Pienaar, M.Eng                        -w- (216) 445-3790      |
| Gait Lab, Biomedical Engineering ND20         -f- (216) 444-9198      |
| Cleveland Clinic Foundation, Cleveland, OH, 44195                     |
+-----------------------------------------------------------------------+
	 

(Submitted via bugs.kde.org)


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