gcc, gfortran and Xcode upgrade

Hi,

I am on OS X 10.7.2, Xcode 4.2.1, R 2.14.1 (GUI 6008) and I was wondering what would happen if I installed 

gcc-4.2 (Apple build 5666.3) with GNU Fortran 4.2.4 for Mac OS X 10.7 (Lion)
(from http://r.research.att.com/tools/)

and then Apple released Xcode 4.2.2? would I have to reinstall gcc-4.2 and gfortran after upgrading Xcode?

On Jan 17, 2012, at 9:27 AM, Federico Calboli wrote:

Hi,

I am on OS X 10.7.2, Xcode 4.2.1, R 2.14.1 (GUI 6008) and I was 

wondering what would happen if I installed 

gcc-4.2 (Apple build 5666.3) with GNU Fortran 4.2.4 for Mac OS X 10.7 

(Lion)

(from http://r.research.att.com/tools/)

and then Apple released Xcode 4.2.2? would I have to reinstall gcc-4.2 

and gfortran after upgrading Xcode?

I didn't actually test it, but Xcode should not touch the gcc-4.2 
installed by us, so the answer should be no (if Apple plays by its own 
rules).

Cheers,
Simon

On Tuesday, January 17, 2012 6:57:55 AM UTC-8, Simon Urbanek wrote:

On Jan 17, 2012, at 9:27 AM, Federico Calboli wrote:

Hi,

I am on OS X 10.7.2, Xcode 4.2.1, R 2.14.1 (GUI 6008) and I was wondering what would happen if I installed 

gcc-4.2 (Apple build 5666.3) with GNU Fortran 4.2.4 for Mac OS X 10.7 (Lion)
(from http://r.research.att.com/tools/)

and then Apple released Xcode 4.2.2? would I have to reinstall gcc-4.2 and gfortran after upgrading Xcode?

I didn't actually test it, but Xcode should not touch the gcc-4.2 installed by us, so the answer should be no (if Apple plays by its own rules).

Cheers,
Simon

All incarnations of XCode that I have seen have linked dev tool binaries into /usr. The package installs compilers to /usr/local so they should be safe.

There are rumblings indicating that XCode 4.3 will keep the dev tools internal to XCode.app its self and not link anything to /usr other than a few utility tools such as xcode_select.

On Jan 18, 2012, at 1:15 AM, Charlie Sharpsteen wrote:

All incarnations of XCode that I have seen have linked dev tool binaries 

into /usr. The package installs compilers to /usr/local so they should be 
safe.

No, the gcc-4.2 package (and gfortran for Xcode) installs into /usr

There are rumblings indicating that XCode 4.3 will keep the dev tools 

internal to XCode.app its self and not link anything to /usr other than a 
few utility tools such as xcode_select.

Interestingly there is iOS beta but no OS X beta so I wouldn't panic since 
for iOS it makes sense.

Cheers,
Simon