gcc version in red hat Linux

[John Guster]

should the version getting from gcc -v match one from rpm -qa|grep gcc?

[Steven Schweda]

It depends.

It's possible to download a GCC source kit,
and build and install a GCC that way, and
that wouldn't appear in any "rpm" report.

Is there some actual problem which you are
trying to solve?

> [...] gcc -v [...] rpm -qa|grep gcc [...]

Call me curious, but what do they say?

[John Guster]

$gcc -v
Reading specs from /usr/lib/gcc-lib/x86_64-redhat-linux/3.2.3/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=x86_64-redhat-linux
Thread model: posix
gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-59)
$rpm -qa|grep gcc
gcc-3.4.6-3

so which version of gcc is: 3.4.6-3 or 3.2.3?
Any idea to share?

[Steven Schweda]

> so which version of gcc [...]?

Could be both, but I'd bet that you have (at
least) "gcc version 3.2.3 20030502 (Red Hat
Linux 3.2.3-59)" installed. GCC is seldom
confused about its own version.

which gcc
echo $PATH

Multiple versions of GCC can be installed in
different places. A bare "gcc" will get you
the first "gcc" found on your PATH. I don't
run Red Hat, so I know nothing, and among the
things I don't know is where "rpm" would have
installed the "gcc" from your gcc-3.4.6-3
kit.

find /usr -type f -name gcc

(Or anyplace else you think likely.)

[John Guster]

there is only gcc executable on the system. it seems info in the package database is different from that directly on the executable.

[bullz]

Yes, ofcourse.

# gcc --version
gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46)

# rpm -qa | grep gcc
gcc-4.1.2-46.el5_4.2

OS is RHEL 5.4

[John Guster]

It has to be reinstalled to clear the inconsistnecy. Thanks all for your thoughts.