[extras] add scan-build wrapper for the CLANG static analyzer

Makefile.am

@@ -71,6 +71,7 @@ EXTRA_DIST = \
     extras/console-qr/console-qr.sh \
     extras/sanitizer/asan-build.sh \
     extras/sanitizer/ubsan-build.sh \
+    extras/clang/scan-build.sh \
     fwknop.spec \
     iphone/main.m \
     iphone/Fwknop.xcodeproj \

extras/clang/scan-build.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+if [ -x ./configure ]; then
+    make clean
+    scan-build ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/run $@
+    script -c 'scan-build make'
+else
+    echo "[*] Execute from the fwknop top level sources directory"
+fi
+
+exit 0