Is there a way to compile gcc with an older version or build gcc manually?

anon002 · 05-09-2015, 11:52 AM

Is there a way to buid gcc manually or to upgrade from a rather old version to the latest from source code? (I'm not looking for any apt or yum or any installing from repos I'm talking about straight from source code.)

knudfl · 05-09-2015, 12:10 PM

Welcome to LQ.

Which gcc version do you have ? ? And which gcc version do you want ? Which OS ?

Example : gcc-5.1.0 compiles with no issues by using gcc-4.9.2

.

-

John VV · 05-09-2015, 02:07 PM

How OLD ???
gcc 2 or gcc 3 ?

anon002 · 05-09-2015, 08:39 PM

The goal is to be able to build gcc for https://github.com/mathwhiz1212/auto...g-for-everyone so pretty much as old version of gcc as possible, how hard is really of no object although easier would be nicer.
P.S. The OS indicator is off, I don't use windows.

veerain · 05-09-2015, 09:22 PM

You don't need an old version of gcc to compile gnupg.

anon002 · 05-09-2015, 10:53 PM

This https://gcc.gnu.org/install/ looks like it will work for my purpose and if anybody comes up with a better/easier solution than please tell us what you've found.

John VV · 05-10-2015, 02:03 PM

???????
your first post is about USING a "rather OLD" version of gcc ( guessing 2 or 3 ) to build a NEW version of gcc ( guessing 4 or 5 )

Quote:

is there a way to buid gcc manually or to upgrade from a rather old version to the latest from source code?

HOW is that related to building GnuPG from a git hub page

anon002 · 05-10-2015, 04:46 PM

What I want to accomplish currently is to compile gcc 5 from gcc 2 preferably gcc 2.95, Do I have to compile any versions in between or can I do it directly?
The script I currently have compiles GnuPG which currently the script installs gcc through apt-get and I want to make it universal of operating systems so the only requirement to run my script is gcc 2 or later.

knudfl · 05-10-2015, 05:41 PM

Re #8.

GCC-5.1.0 can be compiled with gcc-4.1.2 (theoretically), if I remember right.

An OS with gcc-2.95 / g++-2.95 :
Nothing at all will be usable for a contemporary gcc :
An OS that can handle gcc/g++ -2.95 has a glibc etc. etc. libs that are too early for any new gcc !

-

veerain · 05-10-2015, 11:35 PM

You may be able to compile gcc-2.95 with recent stable gcc compiler as it requires only a gnu89 capable compiler.

John VV · 05-11-2015, 01:05 AM

gcc 2.95 ?
i have not seen that since 2002

is this a unsupported RHEL4 install or a even older RHEL3 or the almost antique RHEL2 install
if any of those three
NO NEW software will even build on it
you are stuck with software from 2002 to 2005