add a --enable-coverage switch

.gitignore

@@ -53,3 +53,6 @@ tests/pam_test
 tests/pam_test.log
 tests/pam_test.o
 tests/pam_test.trs
+coverage/
+tests/pam_test.gcno
+ykpamcfg.gcno

Makefile.am

@@ -79,6 +79,32 @@ SUFFIXES = .1.txt .1 .8.txt .8
 .8.txt.8:
 	$(A2X) --format=manpage -a revdate="Version $(VERSION)" $<
 
+
+if ENABLE_COV
+AM_CFLAGS += --coverage
+AM_LDFLAGS = --coverage
+
+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
+
 # Release
 
 ChangeLog:

configure.ac

@@ -105,6 +105,13 @@ AC_ARG_WITH(pam-dir,
             esac])
 AC_MSG_NOTICE([PAM installation path $PAMDIR])
 
+AC_ARG_ENABLE([coverage],
+              [AS_HELP_STRING([--enable-coverage],
+                              [use Gcov to test the test suite])],
+                              [],
+                              [enable_cov=no])
+AM_CONDITIONAL([ENABLE_COV],[test '!' "$enable_cov" = no])
+
 AC_ARG_ENABLE([gcc-warnings],
   [AS_HELP_STRING([--enable-gcc-warnings],
       [turn on lots of GCC warnings (for developers)])],

tests/Makefile.am

@@ -36,3 +36,7 @@ pam_test_LDADD = ../libpam_real.la ../libpam_util.la @LTLIBYUBIKEY@ @LTLIBYKCLIE
 
 check_PROGRAMS = test util_test pam_test
 TESTS = $(check_PROGRAMS)
+
+if ENABLE_COV
+AM_LDFLAGS += --coverage
+endif