Compiler spits out warning with -D_FORTIFY_SOURCE=2 and -O0. Moving to -O2
to remove warnings.
Signed-off-by: Dave Jiang <dave.jiang(a)intel.com>
---
-v2: Add -O2 option to configure.ac as well. (Vishal)
README.md | 2 +-
autogen.sh | 2 +-
configure.ac | 3 ++-
3 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/README.md b/README.md
index 899dcbb8..e0bc5b7b 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ sub-system in the Linux kernel
Build
=====
`./autogen.sh`
-`./configure CFLAGS='-g -O0' --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib64`
+`./configure CFLAGS='-g -O2' --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib64`
`make`
`make check`
`sudo make install`
diff --git a/autogen.sh b/autogen.sh
index a23cf53c..2a52688b 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -24,5 +24,5 @@ echo
"----------------------------------------------------------------"
echo "Initialized build system. For a common configuration please run:"
echo "----------------------------------------------------------------"
echo
-echo "./configure CFLAGS='-g -O0' $args"
+echo "./configure CFLAGS='-g -O2' $args"
echo
diff --git a/configure.ac b/configure.ac
index 6dbfcee8..a1e4e837 100644
--- a/configure.ac
+++ b/configure.ac
@@ -149,7 +149,8 @@ my_CFLAGS="\
-Wtype-limits \
-Wmaybe-uninitialized \
-Wunused-result \
--D_FORTIFY_SOURCE=2
+-D_FORTIFY_SOURCE=2 \
+-O2
"
AC_SUBST([my_CFLAGS])