9c, 9l: use $TMPDIR if available (#272)

NixOS sandboxed builds (at least on Mac) don't have access to /tmp,
and this should be better POSIX.

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/9l b/bin/9l
index 0e939524..032d3801 100755
--- a/bin/9l
+++ b/bin/9l
@@ -346,7 +346,7 @@ then
 	echo $ld -L$PLAN9/lib "$@" $libsl $extralibs $frameworks
 fi
 
-xtmp=/tmp/9l.$$.$USER.out
+xtmp="${TMPDIR-/tmp}/9l.$$.$USER.out"
 xxout() {
 	sed 's/.*: In function `[^:]*: *//' $xtmp | egrep . | 
 	egrep -v 'is (often|almost always) misused|is dangerous, better use|text-based stub'