commit 33f9feecbe71aa6719eb9047ae04d706912a01df
author Andrew Geissler <geissonator@yahoo.com> Mon Aug 27 11:14:03 2018 -0500
committer Andrew Geissler <geissonator@yahoo.com> Mon Aug 27 12:58:12 2018 -0700
tree 8f647790cad602a467a2aede74407fa8cf6e3933
parent 1e12112baf56f9a8ec6dbf7fb409c84f35fff1e8

Add -flto to CXXFLAGS

Per openbmc/openbmc#3364, adding -flto to CXX flags
in order to reduce overall library and binary sizes.

Ref: https://gcc.gnu.org/wiki/LinkTimeOptimization

Change-Id: Idacb03d1ce6ad0253979f5e8b2638ac5129a6216
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>

Makefile.am

diff --git a/Makefile.am b/Makefile.am
index 7912a11..cf45c3b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -32,7 +32,8 @@
 ipmid_CXXFLAGS = -DHOST_IPMI_LIB_PATH=\"/usr/lib/host-ipmid/\" \
 		 $(BOOST_CXX) \
                  $(PHOSPHOR_LOGGING_CFLAGS) \
-                 $(PHOSPHOR_DBUS_INTERFACES_CFLAGS)
+                 $(PHOSPHOR_DBUS_INTERFACES_CFLAGS) \
+                 -flto
 ipmid_LDFLAGS = \
 	$(SYSTEMD_LIBS) \
 	$(libmapper_LIBS) \
@@ -97,7 +98,8 @@
 	-version-info 0:0:0 -shared
 libipmi20_la_CXXFLAGS = $(SYSTEMD_CFLAGS) $(libmapper_CFLAGS) \
 	$(BOOST_CXX) $(PHOSPHOR_LOGGING_CFLAGS) \
-	$(PHOSPHOR_DBUS_INTERFACES_CFLAGS)
+	$(PHOSPHOR_DBUS_INTERFACES_CFLAGS) \
+	-flto
 
 libsysintfcmdsdir = ${libdir}/ipmid-providers
 libsysintfcmds_LTLIBRARIES = libsysintfcmds.la
@@ -115,7 +117,8 @@
                              $(libmapper_CFLAGS) \
                              $(PHOSPHOR_DBUS_INTERFACES_CFLAGS) \
                              $(PHOSPHOR_LOGGING_CFLAGS) \
-                             $(SDBUSPLUS_CFLAGS)
+                             $(SDBUSPLUS_CFLAGS) \
+							 -flto
 
 nobase_include_HEADERS = \
 	host-ipmid/ipmid-api.h \