From 24195b9c873cc6622b746d7e9d120ebd29914d6f Mon Sep 17 00:00:00 2001
From: Josh Durgin <josh.durgin@dreamhost.com>
Date: Fri, 27 May 2011 17:37:43 -0700
Subject: [PATCH] configure: add option for building with gcov coverage support

Signed-off-by: Josh Durgin <josh.durgin@dreamhost.com>
---
 .gitignore      | 2 ++
 configure.ac    | 7 +++++++
 src/Makefile.am | 5 +++++
 3 files changed, 14 insertions(+)

diff --git a/.gitignore b/.gitignore
index 43bd2d80efb08..73a9ea05dfa93 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,8 @@
 *.dsc
 *.changes
 ./config.*
+*.gcda
+*.gcov
 *.gcno
 .deps
 web/*.html
diff --git a/configure.ac b/configure.ac
index 552fb913a95ed..3d32d1ceab674 100644
--- a/configure.ac
+++ b/configure.ac
@@ -141,6 +141,13 @@ AM_CONDITIONAL(WITH_DEBUG, test "$with_debug" = "yes")
 
 AC_DEFINE([DEBUG_GATHER], [1], [Define if you want C_Gather debugging])
 
+# code coverage?
+AC_ARG_ENABLE([coverage],
+            [AS_HELP_STRING([--enable-coverage], [enable code coverage tracking])],
+            [],
+            [enable_coverage=no])
+AM_CONDITIONAL(ENABLE_COVERAGE, test "x$enable_coverage" != xno)
+
 # radosgw?
 AC_ARG_WITH([radosgw],
             [AS_HELP_STRING([--with-radosgw], [build RADOS gateway])],
diff --git a/src/Makefile.am b/src/Makefile.am
index 12b804d09dd83..17756b779b43e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -503,6 +503,11 @@ if WITH_LIBATOMIC
 AM_LDFLAGS += -latomic_ops
 endif
 
+if ENABLE_COVERAGE
+AM_CFLAGS += -fprofile-arcs -ftest-coverage
+AM_CXXFLAGS += -fprofile-arcs -ftest-coverage -O0
+EXTRALIBS += -lgcov
+endif
 
 noinst_LIBRARIES = \
 	libcommon.a \
-- 
2.39.5