Save stderr of probe commands

2 files changed, 16 insertions, 11 deletions

diff --git a/scripts/probe-size.sh b/scripts/probe-size.sh
index ff671ef0..b17c20f5 100644
--- a/scripts/probe-size.sh
+++ b/scripts/probe-size.sh
@@ -1,18 +1,22 @@
 set -e
 
-if [ "$#" -lt 2 ] ; then
-	echo 'usage: probe-size.sh var command...' >&2
+if [ "$#" -lt 3 ] ; then
+	printf 'usage: %s var out command...\n' "$0" >&2
 	exit 2
 fi
 
 var=$1
-shift
+out=$2
+shift 2
 for size in 8 4 2 1 ; do
-	if "$@" -D "$var=$size" 2>/dev/null ; then
-		echo "#define $var $size"
+	echo "==> trying $var=$size..." >&2
+	if "$@" -D "$var=$size" ; then
+		echo '==> success' >&2
+		echo "#define $var $size" >"$out"
 		exit 0
 	fi
-done
+done 2>"$out.log"
 
+cat "$out.log"
 printf "%s: could not determine %s\n" "$0" "$var" >&2
 exit 1
diff --git a/scripts/probe.sh b/scripts/probe.sh
index 093a16dc..cf306110 100644
--- a/scripts/probe.sh
+++ b/scripts/probe.sh
@@ -1,12 +1,13 @@
 set -e
 
-if [ "$#" -lt 2 ] ; then
-	echo 'usage: probe.sh var command...' >&2
+if [ "$#" -lt 3 ] ; then
+	printf 'usage: %s var out command...\n' "$0" >&2
 	exit 2
 fi
 
 var=$1
-shift
-if "$@" 2>/dev/null ; then
-	echo "#define $var 1"
+out=$2
+shift 2
+if "$@" 2>"$out.log" ; then
+	echo "#define $var 1" >"$out"
 fi