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 Compiling-Error: Exult 1.2 with gcc 4.3.3 (Ubuntu 9.04)
Author: Irdin (---.localdomain)
Date:   10-22-09 17:48

Hello there!

To successfully configure Exult 1.2 under Ubuntu 9.04 (gcc 4.3.3) I needed the following packages:
libsdl1.2-dev
libsdl-mixer1.2
libsdl-mixer1.2-dev

All of them can be found in ubuntu's main repository.

Running 'make' however resulted in an error:

In file included from Flex.cc:27:
Flex.h: In copy constructor 'Flex::Flex(const Flex&)':
Flex.h:52: error: 'memcpy' is not a member of 'std'
Flex.h:53: error: 'memcpy' is not a member of 'std'
Flex.h: In member function 'Flex& Flex::operator=(const Flex&)':
Flex.h:60: error: 'memcpy' is not a member of 'std'
Flex.h:61: error: 'memcpy' is not a member of 'std'
In file included from Flex.cc:35:
utils.h: In function 'uint16 Read2(FILE*)':
utils.h:84: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h:85: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h: In function 'uint16 Read2high(FILE*)':
utils.h:127: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h:128: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h: In function 'uint32 Read4(FILE*)':
utils.h:174: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h:175: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h:176: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h:177: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h: In function 'uint32 Read4high(FILE*)':
utils.h:222: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h:223: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h:224: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
utils.h:225: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
In file included from Flex.cc:36:
databuf.h: In member function 'virtual void FileDataSource::read(char*, int)':
databuf.h:198: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
Flex.cc: In member function 'virtual char* Flex::retrieve(uint32, size_t&)':
Flex.cc:103: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result
make[3]: *** [Flex.lo] Error 1

I'm new to this and would be very grateful for some help or leads.
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 Re: Compiling-Error: Exult 1.2 with gcc 4.3.3 (Ubuntu 9.04)
Author: Marzo Sette Torres Junior 
Date:   10-23-09 02:00

For starters, I feel I must warn you that Exult 1.2 isn't really supported anymore. This issue, along many, many, many others, have been fixed in the 1.4.x branch.

With that out of the way: in files/Flex.h, add a new line at around line 25 containing
#include <cstring>

This should take care of the errors above.

------
Marzo Sette Torres Junior
aka Geometrodynamic Dragon
How To Ask Questions The Smart Way
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 Re: Compiling-Error: Exult 1.2 with gcc 4.3.3 (Ubuntu 9.04)
Author: Irdin (---.localdomain)
Date:   10-25-09 14:58

Thank you for your advice!
Since putting the line '#include <cstring>' into Flex.h resulted in several other errors during compilation I now downloaded the SVN source code snapshot.

I installed everything listed in INSTALL plus 'byacc' and 'FLEX' which are apparently required to compile EXULT.

For other Ubuntu/Debian users:
Read this thread to successfully compile exult 1.4.05 from the svn sourcecode:
http://exult.sourceforge.net/forum/read.php?f=1&i=298388&t=275790

It would have saved me a great deal of time if all of these requirements would have been part of your project's docs. May I suggest you add the '-lx11' part to your faq?
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 Re: Compiling-Error: Exult 1.2 with gcc 4.3.3 (Ubuntu 9.04)
Author: Marzo Sette Torres Junior 
Date:   10-25-09 17:38

Quote:

byacc and 'FLEX'

Bison and flex are required only for the usecode compiler, and should not be needed unless you are going to compile it; I don't know if byacc is an adequate substitute for bison.

Re: the "-lX11" bit: I use Ubuntu 9.04 myself, and I haven't needed to use that since I switched from 8.10; it is odd that you are needing to use it.

------
Marzo Sette Torres Junior
aka Geometrodynamic Dragon
How To Ask Questions The Smart Way
Reply To This Message
 
 Re: Compiling-Error: Exult 1.2 with gcc 4.3.3 (Ubuntu 9.04)
Author: Irdin (---.localdomain)
Date:   10-25-09 20:37

I do not know that much about compiling but I'm learning.

bison: A parser generator that is compatible with YACC
byacc: public domain Berkeley LALR Yacc parser generator

Since both seem to work, I guess any YACC compatible parser generator would do?

I don't get your statement about usecode.
I just used gcc to compile exult from the svn-sourcecode I downloaded.
make resulted in an error (which I could reproduce on demand) and after
having installed both byacc and flex this error didn't occur anymore.
Instead, 'make' quit after:
undefined reference to `XChangeProperty'

So I altered this line in the makefile:
CXXFLAGS = -g -O2
to:
CXXFLAGS = -g -O2 -lX11

make then was successful.

Much of this is beyond my scope. I hope at least you and others can learn something from my problems.

Exult runs on my machine now and everybody involved has my gratitude.

Thanks Marzo!
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 Re: Compiling-Error: Exult 1.2 with gcc 4.3.3 (Ubuntu 9.04)
Author: Marzo Sette Torres Junior 
Date:   10-26-09 02:13

Quote:

bison: A parser generator that is compatible with YACC
byacc: public domain Berkeley LALR Yacc parser generator

Since both seem to work, I guess any YACC compatible parser generator would do?

Not quite; byacc is a reimplementation of yacc, while bison is compatible with yacc. Some extensions of bison over yacc may not work in byacc, and I don't know if ucc uses any of them (and can't guarantee it won't in the future).

Quote:

I don't get your statement about usecode.

Usecode is a byte-code virtual machine that drives the game plot. The Exult source includes the source ucc, the usecode c compiler, which compiles a c-like language into that byte-code. This can be used to create usecode patches to alter the way the game works. Only ucc requires bison and flex.

But now that I think, it is enabled by default.

------
Marzo Sette Torres Junior
aka Geometrodynamic Dragon
How To Ask Questions The Smart Way
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