Using newer gcc in /opt/netapps: Difference between revisions

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(Snippet failed for 5.2 Now it works)
(The script is not generic, provide a version-specific one in the gcc/5.2 dir)
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[[Category:software-faq]]
[[Category:software-faq]]


Gcc-5.2 is in /opt/netapps/gnu/gcc/5.2. In order for you to use it, this may have to be appended to your .profile, .bash_profile or whatever applies.
Gcc-5.2 is in /opt/netapps/gnu/gcc/5.2. In order for you to use it, this may have to be appended to your .profile:
 
 
# This is a bash snippet, to be sourced from .profile
GCCBASE="/opt/netapps/gnu/gcc/5.2"
LIBDIRS="$(find ${GCCBASE} -iname \*\.so\.\* -exec dirname {} \;|sort |uniq|grep -v 32$|tr '\n' ':')"
# If you want the newer tools by default, put them at the beginning of $PATH
export PATH="${PATH}:${GCCBASE}/bin"
# Have Make pick the newer compiler
export CXX="${GCCBASE}/bin/g++"
# For good measure: default compiler flags for the C++ course
export CXXFLAGS="${CXXFLAGS} -Wall -std=c++14"
# This is for during compile: prefer newer headers
CPLUS_INCLUDE_PATH="${GCCBASE}/include:${CPLUS_INCLUDE_PATH}"
# This is for linking during build: prefer newer libraries
# (with 5.2, this seems to affect run-time)
export LD_LIBRARY_PATH="${LIBDIRS}:${LD_LIBRARY_PATH}"
# With 5.2, this affects build time
export LIBRARY_PATH="${LIBDIRS}:${LIBRARY_PATH}"
# This is for runtime linking: prefer older libraries
#export LD_RUN_PATH="${LD_RUNPATH}:${GCCBASE}/lib/../lib64"
# Man should also find the newer manpages
export MANPATH="${MANPATH}:${GCCBASE}/share/man"


GCCSNIPPET=/opt/netapps/gnu/gcc/5.2/sourceme
[ -r ${GCCSNIPPET} ] && . ${GCCSNIPPET}


Please note: /opt is *NOT* in ld.so.conf, and should not be
Please note: /opt is *NOT* in ld.so.conf, and should not be


== Later versions ==
== Later versions ==

Revision as of 08:28, 18 August 2015


Gcc-5.2 is in /opt/netapps/gnu/gcc/5.2. In order for you to use it, this may have to be appended to your .profile: 

GCCSNIPPET=/opt/netapps/gnu/gcc/5.2/sourceme
[ -r ${GCCSNIPPET} ] && . ${GCCSNIPPET}

Please note: /opt is *NOT* in ld.so.conf, and should not be

Later versions

You may find that still later versions are available. Check /opt/netapps/gnu/gcc, and alter the above script by adjusting the line 

GCCBASE="/opt/netapps/gnu/gcc/5.2"
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