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The meta RPM "devtoolset-6" will install other meta RPMs: devtoolset-6-{perftools, runtime, toolchain}. Here's an example with devtoolset-4-toolchain6:
ksa@iris02ksa@rhel6-64l $ rpm -q --requires devtoolset-4-toolchain64
devtoolset-6-runtimeperftools4
devtoolset-6-gccruntime4-gcc-c++
devtoolset-
devtoolset-4-gcc-gfortran
devtoolset-4-binutils
devtoolset-4-gdb
devtoolset-4-strace
devtoolset-4-dwz
devtoolset-4-elfutils
devtoolset-4-memstomp
devtoolset-4-ltrace6-toolchain
To use the newer versions in a bash script after the RPMs are installed:
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