build: let HOST_CXXFLAGS default to HOST_CFLAGS

Usage of g++ should mimic the usage of gcc,
otherwise, part of a binary or library may have
optimizations and part of it may not,
unbeknownst to the users or developers working on a build.
This can lead to some features like, for example, FORTIFY_SOURCE,
to have less of an effect or even cause a build error on some hosts.

Therefore, let HOST_CXXFLAGS default to HOST_CFLAGS.

Fixes: 87d489f67 ("build: add HOST_CXXFLAGS for host build")
Signed-off-by: Michael Pratt <mcpratt@pm.me>
Link: https://github.com/openwrt/openwrt/pull/15853
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Michael Pratt 2024-06-20 01:10:21 -04:00 committed by Robert Marko
parent 9c833bc1c4
commit b07099a6fd
1 changed files with 1 additions and 1 deletions

View File

@ -245,8 +245,8 @@ export PKG_CONFIG
HOSTCC:=$(STAGING_DIR_HOST)/bin/gcc
HOSTCXX:=$(STAGING_DIR_HOST)/bin/g++
HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR_HOSTPKG)/include -I$(STAGING_DIR)/host/include)
HOST_CXXFLAGS:=
HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
HOST_CXXFLAGS:=$(HOST_CFLAGS)
HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR_HOSTPKG)/lib -L$(STAGING_DIR)/host/lib)
BUILD_KEY=$(TOPDIR)/key-build