nss: add -flto and makefile cleanup

Signed-off-by: Lucian Cristian <lucian.cristian@gmail.com>

libs/nss/Makefile

@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nss
 PKG_VERSION:=3.52
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:= \
@@ -62,37 +62,34 @@ ifeq ($(CONFIG_CPU_TYPE),"xscale")
 TARGET_CFLAGS+= -mfloat-abi=softfp
 endif
 
-TARGET_CFLAGS += -D_GNU_SOURCE
-TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed
-
-export CROSS_COMPILE=1
-export BUILD_OPT=1
+TARGET_CFLAGS += -D_GNU_SOURCE -flto
 export NATIVE_CC=$(HOSTCC)
 export NATIVE_FLAGS=$(HOST_CFLAGS)
-export NSDISTMODE=copy
-export NSS_ENABLE_WERROR=0
-export NSS_DISABLE_GTESTS=1
-export NSS_USE_SYSTEM_SQLITE=1
-export OS_TARGET=Linux
-export OS_ARCH=Linux
-export OS_TEST=$(ARCH)
-export CPU_ARCH=$(ARCH)
-export fpic=$(FPIC)
-export NSPR_INCLUDE_DIR=$(STAGING_DIR)/usr/include/nspr
-export SEED_ONLY_DEV_URANDOM=1
-export OS_REL_CFLAGS=$(TARGET_CFLAGS)
-export NS_USE_GCC=1
-export FREEBL_NO_DEPEND=1
-#size optimisation, seems to not impact speed
-export NSS_DISABLE_DBM=1
-export NSS_PKIX_NO_LDAP=1
-export ALLOW_OPT_CODE_SIZE=1
-export OPT_CODE_SIZE=1
+
+MAKE_FLAGS += \
+	CROSS_COMPILE=1 \
+	BUILD_OPT=1 \
+	NSDISTMODE=copy \
+	NSS_DISABLE_GTESTS=1 \
+	NSS_USE_SYSTEM_SQLITE=1 \
+	OS_ARCH=Linux \
+	OS_TEST=$(ARCH) \
+	fpic=$(FPIC) \
+	NSPR_INCLUDE_DIR=$(STAGING_DIR)/usr/include/nspr \
+	SEED_ONLY_DEV_URANDOM=1 \
+	NS_USE_GCC=1 \
+	FREEBL_NO_DEPEND=1 \
+	NSS_DISABLE_DBM=1 \
+	NSS_PKIX_NO_LDAP=1 \
+	ALLOW_OPT_CODE_SIZE=1 \
+	OPT_CODE_SIZE=1 \
+	OS_REL_CFLAGS="$(TARGET_CFLAGS)"
 
 #native compile nsinstall
 define Build/Prepare
 	$(call Build/Prepare/Default)
-	USE_NATIVE=1 OS_REL_CFLAGS="$(HOST_CFLAGS)" LDFLAGS="$(HOST_LDFLAGS)" CC="$(HOSTCC)" \
+	USE_NATIVE=1 OS_REL_CFLAGS="$(HOST_CFLAGS)" LDFLAGS="$(HOST_LDFLAGS)" \
+	CC="$(HOSTCC)" CPU_ARCH="$(HOST_ARCH)" \
 	    $(MAKE) -C $(PKG_BUILD_DIR)/nss/coreconf/nsinstall
 endef
 

libs/nss/patches/003-openwrt_fix.patch

@@ -65,6 +65,15 @@
  ifdef MOZ_DEBUG_SYMBOLS
  	ifdef MOZ_DEBUG_FLAGS
  		OPTIMIZER += $(MOZ_DEBUG_FLAGS)
+@@ -192,7 +192,7 @@
+ endif
+ endif
+
+-MKSHLIB         = $(CC) $(DSO_LDOPTS) -Wl,-soname -Wl,$(@:$(OBJDIR)/%.so=%.so) $(RPATH)
++MKSHLIB         = $(CC) $(DSO_LDOPTS) -Wl,-soname -Wl,$(@:$(OBJDIR)/%.so=%.so) $(RPATH) $(fpic) -Wl,--gc-sections,--as-needed
+
+ ifdef MAPFILE
+ 	MKSHLIB += -Wl,--version-script,$(MAPFILE)
 --- a/nss/coreconf/UNIX.mk	2019-04-06 20:34:24.284157646 +0300
 +++ b/nss/coreconf/UNIX.mk	2019-04-06 20:34:34.760485327 +0300
 @@ -10,7 +10,6 @@