Downgrading GCC

majik67 · 2009-09-10 19:58:07

I currently have GCC 4.4.1, but I need Ada support, I have tried the wiki on how to sucessfully compile ada into the gnu compiler collection without luck. I only pursued this route as the gcc-ada package in the AUR requires GCC 4.4.0, which means downgrading.

Will downgrading GCC from 4.4.1 to 4.4.0 break any packages and/or render my system unusable?

wonder · 2009-09-10 20:05:24

no. update the build to 4.4.1. there is gcc-ada 4.4.1

ftp://gcc.gnu.org/pub/gcc/releases/gcc-4.4.1/

Last edited by wonder (2009-09-10 20:07:12)

majik67 · 2009-09-10 20:51:05

thanks a lot a lot

majik67 · 2009-09-10 21:54:54

damn... I spoke too soon. I edited/updated the pkg build, updated the md5sums and then tried to compile. When compiling I get:

configure: error: C compiler cannot create executables
See `config.log' for more details.

I have tried modifying my build flags in /etc/makepkg.conf (stock config)

got rid of the -mtune=generic as suggested by the wiki but I am still getting this same error. I went about looking for the config.log file but cannot find it anywhere, any ideas?

Last edited by majik67 (2009-09-10 21:57:22)

Allan · 2009-09-10 23:15:35

This error is usually bad CFLAGS. Post them here so we can inspect.

majik67 · 2009-09-11 02:16:06

Heres my /etc/makepkg.conf

#
# /etc/makepkg.conf
#

#########################################################################
# SOURCE ACQUISITION
#########################################################################
#
#-- The download utilities that makepkg should use to acquire sources
#  Format: 'protocol::agent'
DLAGENTS=('ftp::/usr/bin/wget -c --passive-ftp -t 3 --waitretry=3 -O %o %u'
          'http::/usr/bin/wget -c -t 3 --waitretry=3 -O %o %u'
          'https::/usr/bin/wget -c -t 3 --waitretry=3 --no-check-certificate -O %o %u'
          'rsync::/usr/bin/rsync -z %u %o'
          'scp::/usr/bin/scp -C %u %o')

# Other common tools:
# /usr/bin/snarf
# /usr/bin/lftpget -c
# /usr/bin/curl

#########################################################################
# ARCHITECTURE, COMPILE FLAGS
#########################################################################
#
CARCH="i686"
CHOST="i686-pc-linux-gnu"

#-- Exclusive: will only run on i686
# -march (or -mcpu) builds exclusively for an architecture
# -mtune optimizes for an architecture, but builds for whole processor family
#CFLAGS="-march=i686 -mtune=generic -O2 -pipe"
#CXXFLAGS="-march=i686 -mtune=generic -O2 -pipe"

# -mtune=generic removed temp. for compilation
CFLAGS="-march=i686 -O2 -pipe"
CXXFLAGS="-march=i686 -O2 -pipe"


#LDFLAGS=""
#-- Make Flags: change this for DistCC/SMP systems
# Have two processors -> n+1
MAKEFLAGS="-j3"

#########################################################################
# BUILD ENVIRONMENT
#########################################################################
#
# Defaults: BUILDENV=(fakeroot !distcc color !ccache)
#  A negated environment option will do the opposite of the comments below.
#
#-- fakeroot: Allow building packages as a non-root user
#-- distcc:   Use the Distributed C/C++/ObjC compiler
#-- color:    Colorize output messages
#-- ccache:   Use ccache to cache compilation
#
BUILDENV=(fakeroot !distcc color !ccache)
#
#-- If using DistCC, your MAKEFLAGS will also need modification. In addition,
#-- specify a space-delimited list of hosts running in the DistCC cluster.
#DISTCC_HOSTS=""

#########################################################################
# GLOBAL PACKAGE OPTIONS
#   These are default values for the options=() settings
#########################################################################
#
# Default: OPTIONS=(strip docs libtool emptydirs zipman purge)
#  A negated option will do the opposite of the comments below.
#
#-- strip:     Strip symbols from binaries/libraries in STRIP_DIRS
#-- docs:      Save doc directories specified by DOC_DIRS
#-- libtool:   Leave libtool (.la) files in packages
#-- emptydirs: Leave empty directories in packages
#-- zipman:    Compress manual (man and info) pages in MAN_DIRS with gzip
#-- purge:     Remove files specified by PURGE_TARGETS
#
OPTIONS=(strip docs libtool emptydirs zipman purge)

#-- File integrity checks to use. Valid: md5, sha1, sha256, sha384, sha512
INTEGRITY_CHECK=(md5)
#-- Manual (man and info) directories to compress (if zipman is specified)
MAN_DIRS=({usr{,/local}{,/share},opt/*}/{man,info})
#-- Doc directories to remove (if !docs is specified)
DOC_DIRS=(usr/{,local/}{,share/}{doc,gtk-doc} opt/*/{doc,gtk-doc})
#-- Directories to be searched for the strip option (if strip is specified)
STRIP_DIRS=(bin lib sbin usr/{bin,lib,sbin,local/{bin,lib,sbin}} opt/*/{bin,lib,sbin})
#-- Files to be removed from all packages (if purge is specified)
PURGE_TARGETS=(usr/{,share}/info/dir .packlist *.pod)

#########################################################################
# PACKAGE OUTPUT
#########################################################################
#
# Default: put built package and cached source in build directory
#
#-- Destination: specify a fixed directory where all packages will be placed
#PKGDEST=/home/packages
#-- Source cache: specify a fixed directory where source files will be cached
#SRCDEST=/home/sources
#-- Packager: name/email of the person or organization building packages
#PACKAGER="John Doe <john@doe.com>"

#########################################################################
# EXTENSION DEFAULTS
#########################################################################
#
# WARNING: Do NOT modify these variables unless you know what you are
#          doing.
#
PKGEXT='.pkg.tar.gz'
SRCEXT='.src.tar.gz'

# vim: set ft=sh ts=2 sw=2 et:

Allan · 2009-09-11 03:06:17

Those CFLAGS look fine. Does config.log give a clue as to why the C compiler is not working?

majik67 · 2009-09-11 03:18:31

checking the config.log I found this: (relavent excerpt)

configure:3313: checking for C compiler default output file name
configure:3316: /home/julian/downloads/gcc-ada/src/usr/bin/gcc-ada -march=i686 -mtune=generic -O2 -pipe   conftest.c  >&5
gcc-ada: error trying to exec 'cc1': execvp: No such file or directory
configure:3319: $? = 1
configure: failed program was:
| /* confdefs.h.  */
| 
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| 
|   ;
|   return 0;
| }

Allan · 2009-09-11 03:51:38

It seems the ada compiler that you have downloaded to boot strap your package with is searching for a binary that does not exist.

I think this is probably a good package for me to build and add to the repos. Requiring to bootstrap with an external binary is probably not a good thing... Don't expect it too soon though...

Allan · 2009-09-13 14:13:29

I looked into this. In the folder where you extracted the rpms, you need to go the ./usr/bin and do a "ln -s ../lib/gcc/i686-pc-linux-gnu/4.4.1/cc1 cc1".

Anyway, I have bootstrapped my own gcc-ada packages. Grab a copy from here

Edit: note I provide the PKGBUILD etc, but you need the package to build the package...

majik67 · 2009-09-14 06:26:39

thanks!

its a shame the normal gcc package doesnt come with ada support

Allan · 2009-09-14 06:33:23

I will look into it in the future...

Arch Linux

#1 2009-09-10 19:58:07

Downgrading GCC

#2 2009-09-10 20:05:24

Re: Downgrading GCC

#3 2009-09-10 20:51:05

Re: Downgrading GCC

#4 2009-09-10 21:54:54

Re: Downgrading GCC

#5 2009-09-10 23:15:35

Re: Downgrading GCC

#6 2009-09-11 02:16:06

Re: Downgrading GCC

#7 2009-09-11 03:06:17

Re: Downgrading GCC

#8 2009-09-11 03:18:31

Re: Downgrading GCC

#9 2009-09-11 03:51:38

Re: Downgrading GCC

#10 2009-09-13 14:13:29

Re: Downgrading GCC

#11 2009-09-14 06:26:39

Re: Downgrading GCC

#12 2009-09-14 06:33:23

Re: Downgrading GCC

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