Add script to generate coverage reports using lcov.

compat/Makefile.am

@@ -10,4 +10,4 @@ AM_CPPFLAGS	 = @EZ_CPPFLAGS@
 AM_CFLAGS	 = @EZ_CFLAGS@
 AM_LDFLAGS	 = @EZ_LDFLAGS@ -avoid-version
 
-CLEANFILES	 = *~ *.core core
+CLEANFILES	 = *~ *.core core *.gcno *.gcda

gen-coverage-report.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+PROGRAM="ezstream"
+
+set -e
+
+trap '' 1
+trap 'exit 1' 2 15
+
+BUILD_DATE=$(date '+%Y%m%d')
+DESTDIR=$PROGRAM-coverage-$BUILD_DATE
+
+if [ -z "$(which lcov)" ]; then
+	echo "lcov is required" >&2
+	exit 1
+fi
+if [ -z "$(which genhtml)" ]; then
+	echo "genhtml is required" >&2
+	exit 1
+fi
+
+rm -rf "$DESTDIR"
+
+./configure CFLAGS='-O0 -fprofile-arcs -ftest-coverage'
+make clean
+make check
+
+mkdir -p $DESTDIR
+lcov --capture --output-file $DESTDIR/coverage.tmp \
+	--rc lcov_branch_coverage=1 \
+	--directory src \
+    --test-name "Ezstream $VERSION"
+genhtml --prefix . --output-directory $DESTDIR \
+	--branch-coverage --function-coverage \
+	--rc lcov_branch_coverage=1 \
+    --title "Ezstream $VERSION" --legend --show-detail $DESTDIR/coverage.tmp
+
+echo "Coverage report available under $DESTDIR"

src/Makefile.am

@@ -42,4 +42,4 @@ AM_CPPFLAGS	 = @EZ_CPPFLAGS@ -I$(top_srcdir)/compat
 AM_CFLAGS	 = @EZ_CFLAGS@
 AM_LDFLAGS	 = @EZ_LDFLAGS@ -avoid-version
 
-CLEANFILES	 = core *.core *~ .*~
+CLEANFILES	 = core *.core *~ .*~ *.gcno *.gcda

tests/Makefile.am

@@ -24,4 +24,4 @@ AM_LDFLAGS	 = @EZ_LDFLAGS@
 
 EXTRA_DIST	 = compat.h
 
-CLEANFILES	 = *~ *.core core
+CLEANFILES	 = *~ *.core core *.gcno *.gcda