add --enable-coverage for lcov

Makefile.am

@@ -32,6 +32,27 @@ EXTRA_DIST = windows.mk mac.mk tool/tests/basic.sh
 
 EXTRA_DIST += doc/Certificate_Authority_with_NEO.adoc doc/OS_X_code_signing.adoc doc/SSH_with_PIV_and_PKCS11.adoc doc/Windows_certificate.adoc doc/YubiKey_NEO_PIV_introduction.adoc
 
+if ENABLE_COV
+cov-reset:
+	rm -fr coverage
+	find . -name "*.gcda" -exec rm {} \;
+	lcov --directory . --zerocounters
+
+cov-report:
+	mkdir -p coverage
+	lcov --compat-libtool --directory . --capture --output-file coverage/app.info
+	lcov --extract coverage/app.info '*.c' --output-file coverage/app2.info
+	genhtml -o coverage/ coverage/app2.info
+
+cov:
+	make cov-report
+
+clean-local:
+	make cov-reset
+
+check:
+	make cov
+endif
 
 # Maintainer rules.
 

configure.ac

@@ -120,7 +120,12 @@ else
   AC_MSG_ERROR([cannot find PCSC/winscard library/headers])
 fi
 
-
+AC_ARG_ENABLE([gcov],
+              [AS_HELP_STRING([--enable-gcov],
+                              [use Gcov to test the test suite])],
+                              [],
+                              [enable_gcov=no])
+AM_CONDITIONAL([ENABLE_COV],[test '!' "$enable_gcov" = no])
 
 AC_ARG_ENABLE([gcc-warnings],
   [AS_HELP_STRING([--enable-gcc-warnings],

lib/Makefile.am

@@ -51,3 +51,8 @@ endif
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = ykpiv.pc
+
+if ENABLE_COV
+AM_CFLAGS += --coverage
+AM_LDFLAGS = --coverage
+endif

tool/Makefile.am

@@ -59,3 +59,8 @@ yubico-piv-tool.1: $(yubico_piv_tool_SOURCES) \
 		--name="Yubico PIV tool" \
 		--include=$(srcdir)/yubico-piv-tool.h2m \
 		--output=$@ $(builddir)/yubico-piv-tool$(EXEEXT)
+
+if ENABLE_COV
+AM_CFLAGS += --coverage
+AM_LDFLAGS = --coverage
+endif

tool/tests/Makefile.am

@@ -38,3 +38,7 @@ parse_name_LDADD = ../libpiv_util.la $(OPENSSL_LIBS)
 
 check_PROGRAMS = parse_name
 TESTS = basic.sh $(check_PROGRAMS)
+
+if ENABLE_COV
+AM_LDFLAGS += --coverage
+endif