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29 lines
816 B
29 lines
816 B
#!/bin/sh
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#
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# gcc-version [-p] gcc-command
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#
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# Prints the gcc version of `gcc-command' in a canonical 4-digit form
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# such as `0295' for gcc-2.95, `0303' for gcc-3.3, etc.
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#
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# With the -p option, prints the patchlevel as well, for example `029503' for
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# gcc-2.95.3, `030301' for gcc-3.3.1, etc.
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#
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if [[ $1 = "-p" ]] ; then with_patchlevel=1; shift; fi
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compiler="$*"
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if [ ${#compiler} -eq 0 ]; then
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echo "Error: No compiler specified."
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echo -e "Usage:\n\t$0 <gcc-command>"
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exit 1
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fi
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MAJOR=$(echo __GNUC__ | $compiler -E -xc - | tail -n 1)
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MINOR=$(echo __GNUC_MINOR__ | $compiler -E -xc - | tail -n 1)
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if [ "x$with_patchlevel" != "x" ] ; then
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PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -xc - | tail -n 1)
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printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
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else
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printf "%02d%02d\\n" $MAJOR $MINOR
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fi
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