treewide: refactor to use PKG_BUILD_FLAGS:=lto

See commit 07730ff3 "treewide: add support for "lto" in PKG_BUILD_FLAGS" on the main repository. Note: Some packages only added `-flto` to CFLAGS and not LDFLAGS. This fixes it and properly enables LTO. Signed-off-by: Andre Heider <a.heider@gmail.com>
2023-03-23 09:27:01 +01:00 · 2023-03-23 09:27:01 +01:00 · e7d9c86503
commit e7d9c86503
parent 35f4ef76e0
54 changed files with 84 additions and 107 deletions
--- a/libs/boost/Makefile
+++ b/libs/boost/Makefile
@ -29,7 +29,7 @@ HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)_$(PKG_SOURCE_VERSION)

 HOST_BUILD_PARALLEL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=no-mips16 gc-sections
+PKG_BUILD_FLAGS:=no-mips16 gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -382,7 +382,7 @@ CONFIGURE_PREFIX:=$(PKG_INSTALL_DIR)
 TARGET_LDFLAGS += -pthread -lrt -lstdc++ -Wl,--as-needed,--print-gc-sections

 TARGET_CFLAGS += \
-	$(if $(CONFIG_SOFT_FLOAT),-DBOOST_NO_FENV_H) -fPIC -flto
+	$(if $(CONFIG_SOFT_FLOAT),-DBOOST_NO_FENV_H) -fPIC

 ifeq ($(word 1,$(subst ., ,$(call qstrip,$(CONFIG_GCC_VERSION)))),5)
    EXTRA_CXXFLAGS += -std=gnu++14
--- a/libs/libcap-ng/Makefile
+++ b/libs/libcap-ng/Makefile
@ -22,6 +22,7 @@ PKG_LICENSE_FILES:=License
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
 PKG_FIXUP:=autoreconf
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -54,7 +55,6 @@ define Package/libcap-ng-bin/description
 endef

 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed $(FPIC)
-TARGET_CFLAGS += -flto

 CONFIGURE_VARS += \
    ac_cv_prog_swig_found=no
--- a/libs/libdcwproto/Makefile
+++ b/libs/libdcwproto/Makefile
@ -21,7 +21,7 @@ PKG_LICENSE_FILES:=COPYING

 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -38,7 +38,6 @@ define Package/libdcwproto/description
  Platform-independent C library for marshaling and serializing DCW messages
 endef

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--as-needed

 define Build/InstallDev
--- a/libs/libdcwsocket/Makefile
+++ b/libs/libdcwsocket/Makefile
@ -22,7 +22,7 @@ PKG_LICENSE_FILES:=COPYING

 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -38,7 +38,7 @@ define Package/libdcwsocket/description
  User-land C library for sending and receiving DCW "EtherType"d messages
 endef

-TARGET_CFLAGS += -std=c89 -flto
+TARGET_CFLAGS += -std=c89
 TARGET_LDFLAGS += -Wl,--as-needed

 define Build/InstallDev
--- a/libs/libgd/Makefile
+++ b/libs/libgd/Makefile
@ -20,6 +20,8 @@ PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=COPYING
 PKG_CPE_ID:=cpe:/a:libgd:libgd

+PKG_BUILD_FLAGS:=lto
+
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk

@ -77,7 +79,7 @@ define Package/libgd/config
 	endif
 endef

-TARGET_CFLAGS += $(FPIC) -ffunction-sections -fdata-sections -flto
+TARGET_CFLAGS += $(FPIC) -ffunction-sections -fdata-sections

 CMAKE_OPTIONS += \
 	-DENABLE_FONTCONFIG=OFF \
--- a/libs/libnpupnp/Makefile
+++ b/libs/libnpupnp/Makefile
@ -15,6 +15,7 @@ PKG_LICENSE_FILES:=COPYING
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
 PKG_BUILD_DEPENDS:=libmicrohttpd
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -32,9 +33,6 @@ venerable pupnp (https://github.com/pupnp/pupnp), based on its 1.6.x
 branch (around 1.6.25).
 endef

-TARGET_CFLAGS += -flto
-TARGET_LDFLAGS += -flto
-
 define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include/npupnp
 	$(CP) $(PKG_INSTALL_DIR)/usr/include/npupnp/* $(1)/usr/include/npupnp/
--- a/libs/libplist/Makefile
+++ b/libs/libplist/Makefile
@ -20,6 +20,7 @@ PKG_CPE_ID:=cpe:/a:libimobiledevice:libplist

 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -66,7 +67,6 @@ CONFIGURE_ARGS += \
 	--disable-static \
 	--without-cython

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--gc-sections

 define Build/InstallDev
--- a/libs/libtins/Makefile
+++ b/libs/libtins/Makefile
@ -20,7 +20,7 @@ PKG_LICENSE:=BSD-2-Clause
 PKG_LICENSE_FILES:=LICENSE

 CMAKE_INSTALL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk
@ -53,7 +53,6 @@ CMAKE_OPTIONS += \
 	-DLIBTINS_ENABLE_TCP_STREAM_CUSTOM_DATA=$(if $(CONFIG_LIBTINS_ENABLE_TCP_STREAM_CUSTOM_DATA),ON,OFF) \
 	-DLIBTINS_ENABLE_WPA2=$(if $(CONFIG_LIBTINS_ENABLE_WPA2),ON,OFF)

-TARGET_CXXFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--as-needed

 define Package/libtins/install
--- a/libs/libv4l/Makefile
+++ b/libs/libv4l/Makefile
@ -15,7 +15,7 @@ PKG_HASH:=65c6fbe830a44ca105c443b027182c1b2c9053a91d1e72ad849dfab388b94e31

 PKG_MAINTAINER:=Ted Hess <thess@kitschensync.net>

-PKG_BUILD_FLAGS:=no-mips16
+PKG_BUILD_FLAGS:=no-mips16 lto
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1

@ -73,7 +73,6 @@ define Package/v4l-utils/description
  This package contains the video4linux utilities.
 endef

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += \
 	$(if $(CONFIG_USE_GLIBC),,-largp) \
 	-Wl,--gc-sections,--as-needed
--- a/libs/libwebp/Makefile
+++ b/libs/libwebp/Makefile
@ -13,6 +13,7 @@ PKG_LICENSE:=BSD-3-Clause
 PKG_LICENSE_FILES:=COPYING

 CMAKE_INSTALL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk
@ -46,8 +47,6 @@ CMAKE_OPTIONS += -DWEBP_ENABLE_SIMD=OFF
 endif
 endif

-TARGET_CFLAGS += -flto
-
 define Package/libwebp/install
 	$(INSTALL_DIR) $(1)/usr/lib
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/lib*.s* $(1)/usr/lib/
--- a/libs/log4cplus/Makefile
+++ b/libs/log4cplus/Makefile
@ -21,6 +21,7 @@ PKG_LICENSE:=BSD-2-Clause Apache-2.0
 PKG_LICENSE_FILES:=LICENSE

 CMAKE_INSTALL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/host-build.mk
@ -50,7 +51,6 @@ OPTIONS:= \
 CMAKE_HOST_OPTIONS += $(OPTIONS) -DBUILD_SHARED_LIBS=OFF
 CMAKE_OPTIONS += $(OPTIONS) -DBUILD_SHARED_LIBS=ON

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed

 define Package/log4cplus/install
--- a/libs/minizip/Makefile
+++ b/libs/minizip/Makefile
@ -18,6 +18,8 @@ PKG_MAINTAINER:=David Woodhouse <dwmw2@infradead.org>
 PKG_LICENSE:=Zlib
 PKG_LICENSE_FILES:=LICENSE

+PKG_BUILD_FLAGS:=lto
+
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk

@ -59,8 +61,6 @@ define Package/minizip/install
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libminizip.so.* $(1)/usr/lib/
 endef

-TARGET_CXXFLAGS += -flto
-
 define Build/InstallDev
 	$(call Build/InstallDev/cmake,$(1))
 	$(SED) 's,/usr/include,$$$${prefix}/include,g' $(1)/usr/lib/pkgconfig/minizip.pc
--- a/libs/nspr/Makefile
+++ b/libs/nspr/Makefile
@ -21,6 +21,7 @@ PKG_HASH:=7ea3297ea5969b5d25a5dd8d47f2443cda88e9ee746301f6e1e1426f8a6abc8f
 PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
 PKG_FIXUP:=autoreconf
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -35,7 +36,6 @@ endif

 export MUSL=$(if $(CONFIG_LIBC_USE_GLIBC),0,1)
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed $(FPIC)
-TARGET_CFLAGS += -flto

 CONFIGURE_ARGS += \
    --build=$(GNU_HOST_NAME) \
--- a/libs/qrencode/Makefile
+++ b/libs/qrencode/Makefile
@ -21,6 +21,8 @@ PKG_LICENSE_FILES:=COPYING

 PKG_CONFIG_DEPENDS:=CONFIG_PACKAGE_qrencode

+PKG_BUILD_FLAGS:=lto
+
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk

@ -60,7 +62,6 @@ CMAKE_OPTIONS += \
 	-DWITH_TESTS=OFF \
 	-DBUILD_SHARED_LIBS=ON

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--gc-sections

 define Build/InstallDev
--- a/libs/sbc/Makefile
+++ b/libs/sbc/Makefile
@ -22,6 +22,7 @@ PKG_MAINTAINER:=
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -38,9 +39,6 @@ define Package/sbc/description
  Needed for A2DP support.
 endef

-TARGET_CFLAGS += -flto
-TARGET_LDFLAGS += -flto
-
 define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include/sbc
 	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/sbc/sbc.h $(1)/usr/include/sbc/
--- a/libs/taglib/Makefile
+++ b/libs/taglib/Makefile
@ -18,6 +18,8 @@ PKG_LICENSE:=LGPL-2.1-or-later
 PKG_LICENSE_FILES:=COPYING.LGPL
 PKG_CPE_ID:=cpe:/a:taglib:taglib

+PKG_BUILD_FLAGS:=lto
+
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk

@ -43,8 +45,6 @@ CMAKE_OPTIONS += \
 	-DBUILD_BINDINGS=OFF \
 	-DNO_ITUNES_HACKS=ON

-TARGET_CXXFLAGS += -flto
-
 define Build/InstallDev
 	$(call Build/InstallDev/cmake,$(1))
 	$(SED) '/^prefix=\|^exec_prefix=/s|/usr|$(STAGING_DIR)/usr|' $(1)/usr/bin/taglib-config
--- a/mail/emailrelay/Makefile
+++ b/mail/emailrelay/Makefile
@ -20,7 +20,7 @@ PKG_LICENSE:=GPL-3.0-or-later
 PKG_LICENSE_FILES:=COPYING

 PKG_CONFIG_DEPENDS:=CONFIG_EMAILRELAY_SUPPORT_VERBOSE_DBG CONFIG_EMAILRELAY_SSL
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -95,7 +95,6 @@ ifeq ($(CONFIG_EMAILRELAY_SUPPORT_VERBOSE_DBG),y)
 		--enable-debug=yes
 endif

-TARGET_CXXFLAGS += -flto
 TARGET_CXXFLAGS += -Wl,--as-needed

 define Package/emailrelay/install
--- a/multimedia/graphicsmagick/Makefile
+++ b/multimedia/graphicsmagick/Makefile
@ -21,6 +21,7 @@ PKG_CPE_ID:=cpe:/a:graphicsmagick:graphicsmagick
 PKG_BUILD_PARALLEL:=1
 DISABLE_NLS:=
 PKG_BUILD_DEPENDS:=zlib freetype libpng libjpeg-turbo tiff
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -73,8 +74,6 @@ CONFIGURE_ARGS += \
 	--without-zstd \
 	--without-x

-TARGET_CFLAGS += $(if $(filter-out 5 6 7 8 9,$(word 1,$(subst ., ,$(call qstrip,$(CONFIG_GCC_VERSION))))),,-flto)
-
 define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include
 	$(CP) \
--- a/multimedia/imagemagick/Makefile
+++ b/multimedia/imagemagick/Makefile
@ -21,7 +21,7 @@ PKG_LICENSE:=Apache-2.0
 PKG_LICENSE_FILES:=LICENSE
 PKG_CPE_ID:=cpe:/a:imagemagick:imagemagick

-PKG_BUILD_FLAGS:=no-mips16
+PKG_BUILD_FLAGS:=no-mips16 lto
 PKG_INSTALL:=1

 include $(INCLUDE_DIR)/package.mk
@ -110,8 +110,6 @@ CONFIGURE_ARGS += \
 	--with-png \
 	--with-tiff

-TARGET_CFLAGS += $(if $(filter-out 5 6 7 8 9,$(word 1,$(subst ., ,$(call qstrip,$(CONFIG_GCC_VERSION))))),,-flto)
-
 define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include
 	$(CP) \
--- a/multimedia/ttymidi-sysex/Makefile
+++ b/multimedia/ttymidi-sysex/Makefile
@ -12,6 +12,7 @@ PKG_MIRROR_HASH:=8d6bb738a08a65c25fcc442777750abbee812a24a29236242032e2d76177454
 PKG_LICENSE:=GPL-3.0-or-later
 PKG_MAINTAINER:=Daniel Golle <daniel@makrotopia.org>
 PKG_BUILD_DEPENDS:=!USE_GLIBC:argp-standalone
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -30,7 +31,6 @@ ttymidi was to make Arduino boards talk to MIDI applications without
 the need to use (or build) any extra hardware. 
 endef

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -lasound -Wl,--gc-sections,--as-needed

 define Build/Configure
--- a/multimedia/v4l2rtspserver/Makefile
+++ b/multimedia/v4l2rtspserver/Makefile
@ -16,7 +16,7 @@ PKG_SOURCE_URL:=https://github.com/mpromonet/v4l2rtspserver
 PKG_SOURCE_VERSION:=v$(PKG_VERSION)
 PKG_MIRROR_HASH:=f2eca75c8af9933f4ceb67cab74af488e1e9ec8af9cbef2534fda5b701b1d63d

-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 LIVE555_VERSION:=2022.10.01
 LIVE555_HASH:=429de73061e3fc6901c4d2f0b7562ae3f6233060ca4b5e182fe555d065cbdd45
@ -51,7 +51,6 @@ define Download/live555
 	HASH:=$(LIVE555_HASH)
 endef

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--as-needed

 CMAKE_OPTIONS += \
--- a/net/aria2/Makefile
+++ b/net/aria2/Makefile
@ -15,7 +15,7 @@ PKG_SOURCE_URL:=https://github.com/aria2/aria2/releases/download/release-$(PKG_V
 PKG_HASH:=58d1e7608c12404f0229a3d9a4953d0d00c18040504498b483305bcb3de907a5
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 PKG_MAINTAINER:=Imre Kaloz <kaloz@openwrt.org>, \
 	Hsing-Wang Liao <kuoruan@gmail.com>
@ -84,9 +84,6 @@ CONFIGURE_ARGS += \
 	--without-libuv \
 	--with-libz

-TARGET_CXXFLAGS += -flto
-TARGET_LDFLAGS += -flto
-
 define Package/aria2/conffiles
 /etc/config/aria2
 endef
--- a/net/chrony/Makefile
+++ b/net/chrony/Makefile
@ -21,6 +21,7 @@ PKG_LICENSE_FILES:=COPYING
 PKG_CPE_ID:=cpe:/a:tuxfamily:chrony

 PKG_BUILD_DEPENDS:=pps-tools
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -79,9 +80,6 @@ CONFIGURE_ARGS+= \

 CONFIGURE_VARS+=CPPFLAGS=-DNDEBUG

-TARGET_CFLAGS += -flto
-TARGET_LDFLAGS += -flto
-
 define Package/chrony/install
 	$(INSTALL_DIR) $(1)/usr/bin/
 	$(INSTALL_DIR) $(1)/usr/sbin/
--- a/net/cifs-utils/Makefile
+++ b/net/cifs-utils/Makefile
@ -23,6 +23,7 @@ PKG_CPE_ID:=cpe:/a:samba:cifs-utils
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -57,7 +58,7 @@ CONFIGURE_ARGS += \
 CONFIGURE_ARGS += \
 	ac_cv_lib_cap_ng_capng_clear=no

-TARGET_CFLAGS += $(FPIC) -ffunction-sections -flto
+TARGET_CFLAGS += $(FPIC) -ffunction-sections
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed

 define Build/InstallDev
--- a/net/clamav/Makefile
+++ b/net/clamav/Makefile
@ -22,7 +22,7 @@ PKG_LICENSE_FILES:=COPYING*
 PKG_CPE_ID:=cpe:/a:clamav:clamav

 PKG_BUILD_DEPENDS:=ncurses
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/nls.mk
@ -73,7 +73,7 @@ CMAKE_OPTIONS += \
 	-DENABLE_SYSTEMD=OFF \
 	-DHAVE_SYSTEM_LFS_FTS=O$(if $(CONFIG_USE_GLIBC),N,FF)

-TARGET_CXXFLAGS += -fno-rtti -flto
+TARGET_CXXFLAGS += -fno-rtti
 TARGET_LDFLAGS += -Wl,--as-needed

 define Package/clamav/conffiles
--- a/net/dcstad/Makefile
+++ b/net/dcstad/Makefile
@ -22,7 +22,7 @@ PKG_LICENSE_FILES:=COPYING
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -39,8 +39,6 @@ define Package/dcstad/description
 Implementation of the Dual-Channel WiFi client daemon
 endef

-TARGET_CFLAGS += -flto
-
 define Package/dcstad/install
 	$(INSTALL_DIR) $(1)/bin
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/dcstad $(1)/bin/
--- a/net/dcwapd/Makefile
+++ b/net/dcwapd/Makefile
@ -22,7 +22,7 @@ PKG_LICENSE_FILES:=COPYING
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -43,7 +43,7 @@ CONFIGURE_ARGS += \
 	--enable-platform=linuxjsonstatic \
 	--enable-shared

-TARGET_CXXFLAGS += -std=c++11 -DRAPIDJSON_HAS_CXX11_RVALUE_REFS=0 -flto
+TARGET_CXXFLAGS += -std=c++11 -DRAPIDJSON_HAS_CXX11_RVALUE_REFS=0
 TARGET_LDFLAGS += -ldcwproto -ldcwsocket -lmrmfilterparser -luci -Wl,--as-needed

 define Build/InstallDev
--- a/net/foolsm/Makefile
+++ b/net/foolsm/Makefile
@ -20,7 +20,7 @@ PKG_LICENSE:=GPL-2.0-only

 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -44,7 +44,6 @@ endef
 MAKE_FLAGS += \
 	PREFIX="$(CONFIGURE_PREFIX)"

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--as-needed

 define Package/foolsm/install
--- a/net/frr/Makefile
+++ b/net/frr/Makefile
@ -15,7 +15,6 @@ PKG_SOURCE:=$(PKG_NAME)-$(PKG_SOURCE_DATE).tar.gz
 PKG_SOURCE_VERSION:=410d78b7a4f2c8b4d4c3736c6d6cdb710287ca80
 PKG_SOURCE_URL:=https://codeload.github.com/FRRouting/frr/tar.gz/$(PKG_SOURCE_VERSION)?

-
 PKG_HASH:=1334b050ea3d4144efeb7bdfe9c6976ebc91744810c5d8a7381a53fac2877ea9
 PKG_MAINTAINER:=Lucian Cristian <lucian.cristian@gmail.com>

@ -58,6 +57,7 @@ PKG_CONFIG_DEPENDS:= \
 PKG_FIXUP:=autoreconf
 PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
+PKG_BUILD_FLAGS:=lto

 PKG_BUILD_DEPENDS:=frr/host
 HOST_BUILD_DEPENDS:=python3/host
@ -166,7 +166,6 @@ define Package/frr-libfrr/conffiles
 endef

 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed -latomic
-TARGET_CFLAGS += -flto

 define Host/Configure
 	$(Host/Configure/Default)
--- a/net/iperf/Makefile
+++ b/net/iperf/Makefile
@ -19,6 +19,7 @@ PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
 PKG_LICENSE:=BSD-3-Clause

 PKG_BUILD_PARALLEL:=1
+PKG_BUILD_FLAGS:=lto

 PKG_CONFIG_DEPENDS:=CONFIG_IPERF_ENABLE_MULTICAST

@ -49,8 +50,7 @@ CONFIGURE_ARGS += \
 	$(call autoconf_bool,CONFIG_IPERF_ENABLE_MULTICAST,multicast) \
 	$(call autoconf_bool,CONFIG_IPV6,ipv6)

-TARGET_CFLAGS += -flto
-TARGET_CXXFLAGS += -fno-rtti -static-libstdc++ -flto -std=c++11
+TARGET_CXXFLAGS += -fno-rtti -static-libstdc++ -std=c++11
 TARGET_LDFLAGS += $(if $(CONFIG_USE_GLIBC),-lpthread -lm)

 define Package/iperf/install
--- a/net/libreswan/Makefile
+++ b/net/libreswan/Makefile
@ -21,6 +21,7 @@ PKG_CPE_ID:=cpe:/a:libreswan:libreswan

 PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -65,7 +66,6 @@ define Package/libreswan/conffiles
 /etc/ipsec.secrets
 endef
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed
-TARGET_CFLAGS += -flto

 MAKE_FLAGS+= \
    WERROR_CFLAGS=" " \
--- a/net/microsocks/Makefile
+++ b/net/microsocks/Makefile
@ -12,6 +12,8 @@ PKG_MAINTAINER:=Mateusz Korniak <matkorgithubcom@ant.gliwice.pl>
 PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=COPYING

+PKG_BUILD_FLAGS:=lto
+
 include $(INCLUDE_DIR)/package.mk

 define Package/microsocks
@ -30,8 +32,7 @@ define Package/microsocks/conffiles
 /etc/config/microsocks
 endef

-TARGET_CFLAGS+= -flto
-TARGET_LDFLAGS+= -flto -Wl,--gc-sections,--as-needed
+TARGET_LDFLAGS+= -Wl,--gc-sections,--as-needed

 define Package/microsocks/install
 	$(INSTALL_DIR) $(1)/usr/bin
--- a/net/mosh/Makefile
+++ b/net/mosh/Makefile
@ -22,7 +22,7 @@ PKG_LICENSE_FILES:=COPYING
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
 PKG_BUILD_DEPENDS:=protobuf/host
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -96,7 +96,7 @@ CONFIGURE_ARGS += \
 CONFIGURE_VARS += \
 	ac_cv_have_decl_ffs=yes

-TARGET_CXXFLAGS += -flto -std=c++11
+TARGET_CXXFLAGS += -std=c++11
 TARGET_LDFLAGS += -lncurses

 define Package/mosh-client/install
--- a/net/mrmctl/Makefile
+++ b/net/mrmctl/Makefile
@ -22,7 +22,7 @@ PKG_LICENSE_FILES:=userland/COPYING

 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -44,7 +44,7 @@ CONFIGURE_PATH:=userland
 CONFIGURE_ARGS += \
 	--enable-shared

-TARGET_CFLAGS += -std=c89 -flto
+TARGET_CFLAGS += -std=c89
 TARGET_LDFLAGS += -Wl,--as-needed

 define Build/InstallDev
--- a/net/nfdump/Makefile
+++ b/net/nfdump/Makefile
@ -20,6 +20,7 @@ PKG_LICENSE_FILES:=COPYING
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -39,7 +40,6 @@ define Package/nfdump/conffiles
 /etc/config/nfcapd
 endef

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--as-needed $(if $(CONFIG_USE_MUSL),-lfts)

 define Package/nfdump/install
--- a/net/open-iscsi/Makefile
+++ b/net/open-iscsi/Makefile
@ -17,6 +17,7 @@ PKG_LICENSE_FILES:=COPYING

 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -58,7 +59,7 @@ define Build/Configure
 endef

 TARGET_CFLAGS += \
-	$(FPIC) -flto \
+	$(FPIC) \
 	-D_GNU_SOURCE -DNO_SYSTEMD

 TARGET_LDFLAGS += -lkmod
--- a/net/open-isns/Makefile
+++ b/net/open-isns/Makefile
@ -18,6 +18,7 @@ PKG_LICENSE_FILES:=COPYING
 PKG_FIXUP:=autoreconf
 PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -36,7 +37,7 @@ endef
 CONFIGURE_ARGS += \
    --enable-shared

-TARGET_CFLAGS += $(FPIC) -flto
+TARGET_CFLAGS += $(FPIC)
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed

 define Build/InstallDev
--- a/net/openvswitch/Makefile
+++ b/net/openvswitch/Makefile
@ -28,7 +28,7 @@ PKG_CPE_ID:=cpe:/a:openvswitch:openvswitch

 PKG_BUILD_DIR:=$(ovs_builddir)
 PKG_BUILD_DEPENDS+=python3/host
-PKG_BUILD_FLAGS:=no-mips16
+PKG_BUILD_FLAGS:=no-mips16 lto
 PKG_BUILD_PARALLEL:=1
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
@ -267,7 +267,7 @@ ifneq ($(ovs_intree_kmod_enabled),)
  endif
 endif

-TARGET_CFLAGS += -flto -std=gnu99
+TARGET_CFLAGS += -std=gnu99
 MAKE_VARS += PYTHONPATH="$(HOST_PYTHON3PATH)"

 export OVS_KERNEL_MAKE_FLAGS=$(KERNEL_MAKE_FLAGS)
--- a/net/ovn/Makefile
+++ b/net/ovn/Makefile
@ -23,7 +23,7 @@ PKG_CPE_ID:=cpe:/a:openvswitch:openvswitch

 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
 PKG_BUILD_DEPENDS+=python3/host
-PKG_BUILD_FLAGS:=no-mips16
+PKG_BUILD_FLAGS:=no-mips16 lto
 PKG_BUILD_PARALLEL:=1
 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
@ -87,7 +87,7 @@ CONFIGURE_VARS += \
 	ovs_cv_python3=$(HOST_PYTHON3_BIN) \


-TARGET_CFLAGS += -flto -std=gnu99
+TARGET_CFLAGS += -std=gnu99
 # This is needed otherwise libtool --mode=install libovn.la will fail with
 # "cannot find -lopenvswitch" when doing libtool --mode=relink.  Likely this
 # was caused by libovn now depends on libopenvswitch.la (installed=no) since
--- a/net/shadowsocks-libev/Makefile
+++ b/net/shadowsocks-libev/Makefile
@ -27,7 +27,7 @@ PKG_LICENSE_FILES:=LICENSE

 PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
-PKG_BUILD_FLAGS:=no-mips16
+PKG_BUILD_FLAGS:=no-mips16 lto
 PKG_BUILD_PARALLEL:=1
 PKG_BUILD_DEPENDS:=c-ares pcre

@ -120,7 +120,6 @@ CONFIGURE_ARGS += \
 	--disable-assert \
 	--disable-ssp \

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed

 $(eval $(call BuildPackage,shadowsocks-libev-config))
--- a/net/tor/Makefile
+++ b/net/tor/Makefile
@ -23,7 +23,7 @@ PKG_CPE_ID:=cpe:/a:torproject:tor
 PKG_INSTALL:=1
 PKG_FIXUP:=autoreconf
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -141,10 +141,7 @@ ifeq ($(BUILD_VARIANT),basic)
 endif


-TARGET_CFLAGS += -flto \
-	$(if $(CONFIG_OPENSSL_ENGINE),,-DDISABLE_ENGINES)
-
-TARGET_LDFLAGS += -flto
+TARGET_CFLAGS += $(if $(CONFIG_OPENSSL_ENGINE),,-DDISABLE_ENGINES)

 CONFIGURE_VARS += \
 	CROSS_COMPILE="yes" \
--- a/net/transmission/Makefile
+++ b/net/transmission/Makefile
@ -23,7 +23,7 @@ PKG_CPE_ID:=cpe:/a:transmissionbt:transmission
 PKG_INSTALL:=1
 PKG_BUILD_DEPENDS:=libb64 node/host
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto
 PKG_CONFIG_DEPENDS:= \
 	CONFIG_LIBCURL_GNUTLS \
 	CONFIG_LIBCURL_MBEDTLS \
@ -92,7 +92,7 @@ define Package/transmission-daemon/conffiles
 /etc/config/transmission
 endef

-TARGET_CFLAGS += -flto -DHAVE_SIZE_T -latomic
+TARGET_CFLAGS += -DHAVE_SIZE_T -latomic
 TARGET_LDFLAGS += -Wl,--as-needed

 CMAKE_OPTIONS += \
--- a/sound/espeak/Makefile
+++ b/sound/espeak/Makefile
@ -20,7 +20,7 @@ PKG_LICENSE_FILES:=License.txt

 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -51,7 +51,7 @@ MAKE_FLAGS+= \

 MAKE_PATH:=./src

-TARGET_CXXFLAGS += -std=c++14 -flto
+TARGET_CXXFLAGS += -std=c++14
 TARGET_LDFLAGS += $(FPIC) $(if $(CONFIG_USE_GLIBC),-lm) -Wl,--as-needed

 define Package/espeak/install
--- a/utils/acpid/Makefile
+++ b/utils/acpid/Makefile
@ -22,7 +22,7 @@ PKG_CPE_ID:=cpe:/a:tedfelix:acpid

 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -38,7 +38,6 @@ define Package/acpid/description
  The ACPI Daemon (acpid) With Netlink Support
 endef

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--as-needed

 define Package/acpid/install
--- a/utils/ap51-flash/Makefile
+++ b/utils/ap51-flash/Makefile
@ -18,6 +18,8 @@ PKG_MAINTAINER:=Russell Senior <russell@personaltelco.net>
 PKG_LICENSE:=GPL-3.0-or-later CC0-1.0
 PKG_LICENSE_FILES:=LICENSES/GPL-3.0-or-later.txt LICENSES/CC0-1.0.txt

+PKG_BUILD_FLAGS:=lto
+
 include $(INCLUDE_DIR)/package.mk

 define Package/ap51-flash
@ -32,7 +34,6 @@ MAKE_FLAGS += \
 	REVISION="$(PKG_VERSION)" \
 	ap51-flash

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed

 define Package/ap51-flash/install
--- a/utils/coremark/Makefile
+++ b/utils/coremark/Makefile
@ -22,7 +22,7 @@ PKG_MAINTAINER:=Lim Guo Wei <limguowei@gmail.com> \
 PKG_LICENSE:=Apache-2.0
 PKG_LICENSE_FILES:=LICENSE.md

-PKG_BUILD_FLAGS:=no-mips16
+PKG_BUILD_FLAGS:=no-mips16 lto

 include $(INCLUDE_DIR)/package.mk

@ -60,8 +60,6 @@ define Package/coremark/config
 			Number of threads to run in parallel
 endef

-TARGET_CFLAGS += -flto
-
 ifeq ($(CONFIG_COREMARK_OPTIMIZE_O3),y)
 	TARGET_CFLAGS := $(filter-out -O%,$(TARGET_CFLAGS)) -O3
 endif
--- a/utils/domoticz/Makefile
+++ b/utils/domoticz/Makefile
@ -20,7 +20,7 @@ PKG_LICENSE:=GPL-3.0
 PKG_LICENSE_FILES:=License.txt

 PKG_BUILD_DEPENDS:=python3 minizip cereal
-PKG_BUILD_FLAGS:=no-mips16
+PKG_BUILD_FLAGS:=no-mips16 lto

 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk
@ -73,8 +73,7 @@ CMAKE_OPTIONS += \
 	-DUSE_PYTHON=yes \
 	-DWITH_LIBUSB=no

-TARGET_CFLAGS += -flto
-TARGET_CXXFLAGS += -DWITH_GPIO -flto
+TARGET_CXXFLAGS += -DWITH_GPIO

 define Build/Prepare
 	$(call Build/Prepare/Default)
--- a/utils/dump1090/Makefile
+++ b/utils/dump1090/Makefile
@ -21,7 +21,7 @@ PKG_LICENSE_FILES:=COPYING LICENSE

 PKG_BUILD_DEPENDS:=libusb
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -57,7 +57,6 @@ MAKE_FLAGS += \
 	CFLAGS="$(TARGET_CFLAGS)" \
 	UNAME="Linux"

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += -Wl,--as-needed

 define Package/dump1090/conffiles
--- a/utils/gptfdisk/Makefile
+++ b/utils/gptfdisk/Makefile
@ -20,7 +20,7 @@ PKG_LICENSE:=GPL-2.0-or-later
 PKG_LICENSE_FILES:=COPYING

 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -73,7 +73,7 @@ define Package/fixparts/description
  Master Boot Record (MBR) partition tables
 endef

-TARGET_CXXFLAGS += -std=c++11 -fno-rtti -flto -Wno-format-security
+TARGET_CXXFLAGS += -std=c++11 -fno-rtti -Wno-format-security
 TARGET_LDFLAGS += -Wl,--as-needed

 define Package/gdisk/install
--- a/utils/readsb/Makefile
+++ b/utils/readsb/Makefile
@ -20,7 +20,7 @@ PKG_MAINTAINER:=Stijn Tintel <stijn@linux-ipv6.be>

 PKG_BUILD_DEPENDS:=!USE_GLIBC:argp-standalone
 PKG_BUILD_PARALLEL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -49,7 +49,6 @@ MAKE_FLAGS += \
 	RTLSDR=yes \
 	UNAME="Linux"

-TARGET_CFLAGS += -flto
 TARGET_LDFLAGS += \
 	$(if $(CONFIG_USE_GLIBC),,-largp) \
 	-Wl,--as-needed
--- a/utils/smartmontools/Makefile
+++ b/utils/smartmontools/Makefile
@ -21,6 +21,7 @@ PKG_LICENSE_FILES:=COPYING

 PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -78,9 +79,7 @@ define Package/smartd-mail/description
  A script for mailing about SMART issues
 endef

-TARGET_LDFLAGS += -flto
-
-TARGET_CXXFLAGS +=-fno-rtti -flto
+TARGET_CXXFLAGS +=-fno-rtti
 MAKE_FLAGS +=BUILD_INFO='"(localbuild)"'

 CONFIGURE_ARGS += \
--- a/utils/unrar/Makefile
+++ b/utils/unrar/Makefile
@ -22,10 +22,11 @@ PKG_CPE_ID:=cpe:/a:rarlab:unrar

 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

-TARGET_CXXFLAGS +=-fno-rtti -flto
+TARGET_CXXFLAGS +=-fno-rtti
 TARGET_LDFLAGS +=$(FPIC) -Wl,--gc-sections $(if $(CONFIG_USE_GLIBC),-lpthread)

 define Package/unrar/Default
--- a/utils/xz/Makefile
+++ b/utils/xz/Makefile
@ -23,6 +23,7 @@ PKG_CPE_ID:=cpe:/a:tukaani:xz

 PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
+PKG_BUILD_FLAGS:=lto

 include $(INCLUDE_DIR)/package.mk

@ -71,7 +72,7 @@ define BuildSubPackage
  $$(eval $$(call BuildPackage,$(1)))
 endef

-TARGET_LDFLAGS += -Wl,--gc-sections -flto
+TARGET_LDFLAGS += -Wl,--gc-sections

 CONFIGURE_ARGS += \
 	--enable-small \
--- a/utils/zsh/Makefile
+++ b/utils/zsh/Makefile
@ -22,7 +22,7 @@ PKG_CPE_ID:=cpe:/a:zsh_project:zsh

 PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
-PKG_BUILD_FLAGS:=gc-sections
+PKG_BUILD_FLAGS:=gc-sections lto

 include $(INCLUDE_DIR)/package.mk

@ -83,8 +83,8 @@ define Build/Configure
 	$(MAKE) -C $(PKG_BUILD_DIR) DESTDIR="$(PKG_INSTALL_DIR)" prep
 endef

-TARGET_CFLAGS += $(FPIC) -flto
-TARGET_LDFLAGS += $(FPIC) -flto
+TARGET_CFLAGS += $(FPIC)
+TARGET_LDFLAGS += $(FPIC)

 define Package/zsh/postinst
 #!/bin/sh