Installing GCC 3.2 : How to resolve error "lvalue required as increment operand"?

Question

I am using Ubuntu 10.04 and the current version of GCC installed in my system is 4.4. For some specific need I want to install GCC 3.2.

I began with these steps:

$mkdir gcc-build
$cd gcc-build
$tar zxvf gcc-3.2.tar.gz
$mkdir -p gcc-bin
$mkdir -p usr/local
$cd gcc-bin
$../gcc-build/gcc-3.2/configure --prefix=../gcc-build/usr/local

It has configured successfully. But when I used below command

$make bootstrap

I got an error

../gcc-build/gcc-3.2/gcc/read-rtl.c:653: error: lvalue required as increment operand
make[1]: *** [read-rtl.o] Error 1
make[1]: Leaving directory `../gcc-build/gcc-bin/gcc'
make: *** [all-gcc] Error 2

Anybody please help me to resolve this error. Or please suggest some alternative ways. Thanks.

Answer 1

Here is an incredibly hacky fix to work around the loss of cast-as-lvalue, based on a suggestion of SM Ryan in comp.lang.c.

Near the top of the file, add

#define LV(type,lvalue) (*((type*)((void*)(&lvalue))))

Now, replace the casts with LV(...) as in these examples (from gdb's obstack.h):

On line 428, change

*((void **)__o->next_free)++ = ((void *)datum);

to

*(LV(void**, __o->next_free))++ = ((void *)datum);

and likewise, on line 436 change

*((int *)__o->next_free)++ = ((int)datum);      

to

*(LV(int*, __o->next_free))++ = ((int)datum);

Good luck.

Answer 2

After few trials, I found one solution.

I added below mirrors in /etc/apt/sources.list

deb http://snapshot.debian.org/archive/debian/20070730T000000Z/ lenny main
deb-src http://snapshot.debian.org/archive/debian/20070730T000000Z/ lenny main
deb http://snapshot.debian.org/archive/debian-security/20070730T000000Z/ lenny/updates main
deb-src http://snapshot.debian.org/archive/debian-security/20070730T000000Z/ lenny/updates main

With these mirrors, I am able to install GCC 3.3(though not GCC 3.2) using

$sudo apt-get install g++-3.3   

Don't forget to do $sudo apt-get update before above command.

It is in fact satisfying my need. And to run the program using GCC 3.3, do

$gcc-3.3 input_file

Because otherwise if you type $gcc input_file it will use the default GCC(GCC 4.4 in my case) to compile the program. We can change the way desired version is used by simply creating a hard link of the version you want to tag to command gcc. We can do the following

$cd /usr/bin
$sudo ln gcc-3.3 gcc

So now whenever you type $gcc input_file it will use your desired gcc version to compile the program.

Answer 3

Once I faced a similar problem. I had this module 'r8169' which wasn't receiving packets from my wired connection. Then I had to build the previous module 'r8168' from source. This gave me similar errors like yours.

A possible fix is by going into superuser mode. Type

sudo su

Then type your password. The console will show you '#' instead of '$' for writing commands. Then try your commands again.

#mkdir gcc-build
#cd gcc-build
#tar zxvf gcc-3.2.tar.gz
#mkdir -p gcc-bin
#mkdir -p usr/local
#cd gcc-bin
#../gcc-build/gcc-3.2/configure --prefix=../gcc-build/usr/local
# make bootstrap

(and any other commands, if left). Hopefully, it should work.