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configure: test $SHELL's permission

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On some weird setup where $SHELL is a relative path (can happen under GNU
Screen,) `file -L "$BIN_TO_PROBE"` fails and $CFG_CPUTYPE is wrongly set to
i686.  We should not only check its string value but also permission on
filesystem.
This commit is contained in:
Kai Noda 2015-12-07 11:19:03 +08:00 committed by NODA, Kai
parent 439e1843b9
commit 00e6667b98
1 changed files with 11 additions and 8 deletions
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19
configure vendored
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@ -521,15 +521,18 @@ then
# if configure is running in an interactive bash shell. /usr/bin/env
# exists *everywhere*.
BIN_TO_PROBE="$SHELL"
if [ -z "$BIN_TO_PROBE" -a -e "/usr/bin/env" ]; then
BIN_TO_PROBE="/usr/bin/env"
if [ ! -r "$BIN_TO_PROBE" ]; then
if [ -r "/usr/bin/env" ]; then
BIN_TO_PROBE="/usr/bin/env"
else
warn "Cannot check if the userland is i686 or x86_64"
fi
fi
file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
if [ $? != 0 ]; then
msg "i686 userland on x86_64 Linux kernel"
CFG_CPUTYPE=i686
fi
if [ -n "$BIN_TO_PROBE" ]; then
file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
if [ $? != 0 ]; then
CFG_CPUTYPE=i686
fi
fi
fi