From 1a1b6fcf2e3da9616a02f4bc3a16d8adc17c3c98 Mon Sep 17 00:00:00 2001
From: Klas Lindfors <klas@yubico.com>
Date: Thu, 29 Jan 2015 10:12:05 +0100
Subject: [PATCH] add cppcheck rule

---
 Makefile.am  |  5 +++++
 configure.ac | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index 148806a..a3b72ab 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -54,6 +54,11 @@ check:
 	make cov
 endif
 
+if ENABLE_CPPCHECK
+cppcheck:
+	$(CPPCHECK) -q -v -f --enable=all -i tool/cmdline.c lib tool
+endif
+
 # Maintainer rules.
 
 check-doc-dist:
diff --git a/configure.ac b/configure.ac
index 3d884e7..579cb77 100644
--- a/configure.ac
+++ b/configure.ac
@@ -127,6 +127,23 @@ AC_ARG_ENABLE([coverage],
                               [enable_cov=no])
 AM_CONDITIONAL([ENABLE_COV],[test '!' "$enable_cov" = no])
 
+AC_ARG_ENABLE([cppcheck],
+              [AS_HELP_STRING([--enable-cppcheck],
+                              [run cppcheck])],
+                              [enable_cppcheck="$enableval"],
+                              [enable_cppcheck="no"])
+
+have_cppcheck=no
+AS_IF([test "x$enable_cppcheck" != xno],
+      [AC_PATH_PROG([CPPCHECK], [cppcheck], [NONE])
+      AS_IF([test "x$enable_cppcheck" != xno],
+            [have_cppcheck=yes
+             AC_SUBST([CPPCHECK])],
+             [have_cppcheck=no
+              AS_IF([test "x$enable_cppcheck" != xauto],
+                    [AC_MSG_ERROR([cannot find cppcheck])])])])
+AM_CONDITIONAL([ENABLE_CPPCHECK],[test '!' "$have_cppcheck" = no])
+
 AC_ARG_ENABLE([gcc-warnings],
   [AS_HELP_STRING([--enable-gcc-warnings],
       [turn on lots of GCC warnings (for developers)])],