[PATCH] configure: fix mktemp call for macOS

[Ralph Seichter]

Add missing template to mktemp, as required by macOS / OS X.

Signed-off-by: Ralph Seichter <abbot at monksofcool.net>
---
 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 8b80f0e0..6e73b22e 100755
--- a/configure
+++ b/configure
@@ -529,7 +529,7 @@ int main () {
     return 0;
 }
 EOF
-    if ! TEMP_GPG=$(mktemp -d); then
+    if ! TEMP_GPG=$(mktemp -d "${TMPDIR:-/tmp}/notmuch.XXXXXX"); then
         printf 'No.\nCould not make tempdir for testing session-key support.\n'
         errors=$((errors + 1))
     elif ${CC} ${CFLAGS} ${gmime_cflags} _check_session_keys.c ${gmime_ldflags} -o _check_session_keys \
-- 
2.22.0

(This obsoletes id:87r27z63uk.fsf at ra.horus-it.com)