fd10b42ab8
Some toolchains, like the one built with buildroot itself, use hardlinks (for example to link between the c++ and g++ binary). Unpacking such a toolchain with the --strip-components options does not work correctly if the system tar is too old (<1.17). Even recent releases of RedHat/CentOS still ship with tar 1.15. This patch checks for a suitable tar version (tar 1.17+) on the host system, and adds host-tar to the host dependencies if none can be found. host-tar is download and extracted as cpio.gz instead of tar.gz, to prevent chicken-egg problem. Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> v4 Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
36 lines
805 B
Bash
Executable File
36 lines
805 B
Bash
Executable File
#!/bin/sh
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candidate="$1"
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tar=`which $candidate`
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if [ ! -x "$tar" ]; then
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tar=`which tar`
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if [ ! -x "$tar" ]; then
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# echo nothing: no suitable tar found
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exit 1
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fi
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fi
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# Output of 'tar --version' examples:
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# tar (GNU tar) 1.15.1
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# tar (GNU tar) 1.25
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version=`$tar --version | head -n 1 | sed 's/^.*\s\([0-9]\+\.\S\+\).*$/\1/'`
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major=`echo "$version" | cut -d. -f1`
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minor=`echo "$version" | cut -d. -f2`
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bugfix=`echo "$version" | cut -d. -f3`
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# Minimal version = 1.17 (previous versions do not correctly unpack archives
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# containing hard-links if the --strip-components option is used).
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major_min=1
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minor_min=17
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if [ $major -gt $major_min ]; then
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echo $tar
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else
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if [ $major -eq $major_min -a $minor -ge $minor_min ]; then
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echo $tar
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else
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# echo nothing: no suitable tar found
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exit 1
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fi
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fi
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