DOWNgrade gcc. How?

vasilakis · 06-11-2004, 06:53 AM

I followed the instructions of Andrew Benton
After make install I got this message

make[2]: Leaving directory `/opt/gcc-build/i686-pc-linux-gnu/libiberty'
make[2]: Entering directory `/opt/gcc-build/i686-pc-linux-gnu/libiberty/testsuite'
make[2]: Nothing to be done for `install'.
make[2]: Leaving directory `/opt/gcc-build/i686-pc-linux-gnu/libiberty/testsuite'
make[1]: Leaving directory `/opt/gcc-build/i686-pc-linux-gnu/libiberty'

Is it everything OK with instalation?

after export CC=/opt/gcc-2.95/bin/gcc

I don't know how to use the gcc 2.95.3 compliler

when I type gcc -v
it returns

[root@MAT23 gcc-build]# gcc -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2.2/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --host=i386-redhat-linux
Thread model: posix
gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)

I need to use 2.95.3 instead of 3.2.2

Any advices ?

Andrew Benton · 06-11-2004, 07:18 AM

If you type gcc -v it will go looking for gcc and then tell you what version it is. If you do

Code:

export CC=/opt/gcc-2.95/bin/gcc
$CC -v

What does it say? You can usually see which C compiler is being used when you run ./configure. Most configure scripts print out stuff about the tests they perform. I haven't got gcc-2.95 installed, but I have got gcc-3.3.3 installed in /usr/local/gcc-3.3.3/bin/gcc as some things won't compile with gcc-3.4, so I'll use that as an example. Xine-libs won't compile with gcc-3.4.0 so this is the start of the output in the terminal when I configure it with gcc-3.3.3

Code:

andy:~$ cd /home/andy/Desktop/xine-lib-1-rc4a
andy:~/Desktop/xine-lib-1-rc4a$ export CC=/usr/local/gcc-3.3.3/bin/gcc
andy:~/Desktop/xine-lib-1-rc4a$ ./configure
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
checking for a BSD-compatible install... /bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for style of include used by make... GNU
checking for gcc... /usr/local/gcc-3.3.3/bin/gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no

See where it says "checking for gcc... /usr/local/gcc-3.3.3/bin/gcc"? Job's a good 'un.

ayie · 06-16-2004, 02:10 AM

i also followed instruction by Andrew but i got this error

Code:

 gcc-2.95.3/install/TEST
gcc-2.95.3/.brik
Configuring for a i686-pc-linux-gnuoldld host.
Created "Makefile" in /root/opt/gcc-build
../gcc-2.95.3/configure: line 7: cc: command not found
*** The command 'cc -o conftest -g   conftest.c' failed.
*** You must set the environment variable CC to a working compiler.

anyone can explain it to me ???? why line 7: cc: command not found ???
what should i do ???

Andrew Benton · 06-16-2004, 06:30 AM

"You must set the environment variable CC to a working compiler" Do you have a working C compiler?

ayie · 06-16-2004, 08:30 PM

Quote:

Originally posted by Andrew Benton
"You must set the environment variable CC to a working compiler" Do you have a working C compiler?

how to check my server have working C compiler ??? if none how to make it ???

Andrew Benton · 06-17-2004, 03:53 AM

Open a shell and enter

gcc -v

if it says something like

bash: gcc: command not found

then you don't have gcc installed. You'll need to install a gcc.rpm off your linux CD's.

ayie · 06-18-2004, 12:56 AM

Quote:

Originally posted by Andrew Benton
Open a shell and enter

gcc -v

if it says something like

bash: gcc: command not found

then you don't have gcc installed. You'll need to install a gcc.rpm off your linux CD's.

how if i don't have cd, where can i find gcc.rpm in the net, give me the best links ..... thanks Andrew Benton.

ayie · 06-18-2004, 02:22 AM

i success install gcc, but i got another problems ......

Code:

[ayie@fedora ayie]$ gcc -v
Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.0/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --host=i386-redhat-linux
Thread model: posix
gcc version 3.4.0 20040613 (Red Hat Linux 3.4.0-5)

when i try to install eggdrop on my server

Code:

checking how to run the C preprocessor... /lib/cpp
configure: error: C preprocessor "/lib/cpp" fails sanity check

y ????

Code:

binutils-2.15.90.0.3-7.i386.rpm  
glibc-headers-2.3.2-101.4.i386.rpm
cpp-3.4.0-5.i386.rpm             
kernel-headers-2.6.6-1.i386.rpm
gcc-3.4.0-5.i386.rpm             
libgcc-3.4.0-5.i386.rpm
glibc-devel-2.3.2-101.i386.rpm

all this files that i use to install gcc

Spnets · 08-01-2004, 05:26 PM

Hi all, hope I post on the right forum,

I've install gcc-3.3.4_20040505 on my FreeBSD 4.1 using FreeBSD ports collection....it's install but
when i type gcc -v it show: gcc version 2.95.4 20020320

What must I do next to get the machine to run on gcc-3.3 and not the 2.95
please help.

Thanks

jeni_m110 · 10-29-2009, 01:30 AM

Quote:

Originally Posted by Andrew Benton

I would advise you not to put gcc-2.95 in /usr/local as /usr/local/bin is probably in your $PATH so you will have two versions of gcc in your $PATH, one in /usr/bin and one in /usr/local/bin. This may cause problems. I would suggest that you install it somewhere out of the way, such as /opt/gcc-2.95. That way there is less chance of confusion. When you need to use it you can temporarily set the variable
export CC=/opt/gcc-2.95/bin/gcc
Install gcc-2.95 in /opt by doing

Code:

tar xzf gcc-2.95.3.tar.gz &&
mkdir gcc-build &&
cd gcc-build &&
../gcc-2.95.3/configure --prefix=/opt/gcc-2.95 --enable-languages=c,c++ &&
make bootstrap &&
make install

hi
i should install the gcc 2.95, i use RedHat7.2, and try these commands:

[root@localhost gcc-2.95]# export CC=/opt/gcc-2.95/bin/gcc
[root@localhost gcc-2.95]# tar xzf gcc-2.95.3.tar.gz && mkdir gcc-build && cd gcc-build &&/opt/gcc-2.95/gcc-2.95.3/configure --prefix=/opt/gcc-2.95 --enable-languages=c,c++ && make bootstrap && make install

but it gives me this:
"configuring for a i686-pc-linux-gnuoldldhost.
created "makefile" in /opt/gcc-2.95/gcc-build
/opt/gcc-2.95/gcc-2.95.3/configure: /opt/gcc-2.95/bin/gcc: No such file or directory
***the commanad 'cc -o conftest -g conftest.c' failed.
***you must set the enviroment variable CC to a working compiler."

by the way, when i check the /usr/local/bin folder, it's empty, is that ok?

jeni_m110 · 10-29-2009, 01:53 AM

Quote:

Originally Posted by Andrew Benton

Open a shell and enter

gcc -v

if it says something like

bash: gcc: command not found

then you don't have gcc installed. You'll need to install a gcc.rpm off your linux CD's.

hi,
i try this,
and when i insert my installation cd No.2, i write this command:

[root@localhost /]# rpm -iv /mnt/cdrom1/RedHat/RPMS/gcc- (i press tab here and show me these)
gcc-2.96-98.i386.rpm gcc-g77-2.96.98.i386.rpm
gcc-c++-2.96-98.i386.rpm gcc-java-2.96-98.i386.rpm
gcc-chill-2.96-98.i386.rpm gcc-objc-2.96-98.i386.rpm

i select gcc-2.96-98.i386.rpm for example , it gives me the

"error: failed dependencies:
binutils >=2.11.90.0.8-3 is needed by gcc-2.96.98
cpp= 2.96-98 is needed by gcc-2.96-98
glibc-devel is needed by gcc-2.96-98"

how can i fix this problem?