depends: explicitely set C/CXX standard for all packages

contrib/depends/Makefile

@@ -8,6 +8,9 @@ SOURCES_PATH ?= $(BASEDIR)/sources
 BASE_CACHE ?= $(BASEDIR)/built
 FALLBACK_DOWNLOAD_PATH ?= https://downloads.getmonero.org/depends-sources
 
+C_STANDARD ?= c11
+CXX_STANDARD ?= c++17
+
 BUILD = $(shell ./config.guess)
 HOST ?= $(BUILD)
 PATCHES_PATH = $(BASEDIR)/patches

contrib/depends/hosts/android.mk

@@ -16,8 +16,8 @@ android_CXX=$(clear_guix_env) $(build_prefix)/bin/$(host_toolchain)clang++
 android_AR=llvm-ar
 android_RANLIB=llvm-ranlib
 
-android_CFLAGS=-pipe
-android_CXXFLAGS=$(android_CFLAGS)
+android_CFLAGS=-pipe -std=$(C_STANDARD)
+android_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
 android_ARFLAGS=crsD
 
 android_release_CFLAGS=-O2

contrib/depends/hosts/darwin.mk

@@ -53,8 +53,8 @@ darwin_CXX=env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH \
                -iwithsysroot/usr/include/c++/v1 \
                -iwithsysroot/usr/include -iframeworkwithsysroot/System/Library/Frameworks
 
-darwin_CFLAGS=-pipe
-darwin_CXXFLAGS=$(darwin_CFLAGS)
+darwin_CFLAGS=-pipe -std=$(C_STANDARD)
+darwin_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
 darwin_LDFLAGS=-Wl,-platform_version,macos,$(OSX_MIN_VERSION),$(OSX_SDK_VERSION) -Wl,-no_adhoc_codesign -fuse-ld=lld
 darwin_ARFLAGS=cr
 

contrib/depends/hosts/freebsd.mk

@@ -13,8 +13,8 @@ freebsd_AR=ar
 freebsd_RANLIB=ranlib
 freebsd_NM=nm
 
-freebsd_CFLAGS=-pipe
-freebsd_CXXFLAGS=$(freebsd_CFLAGS)
+freebsd_CFLAGS=-pipe -std=$(C_STANDARD)
+freebsd_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
 freebsd_ARFLAGS=cr
 
 freebsd_release_CFLAGS=-O2

contrib/depends/hosts/linux.mk

@@ -1,5 +1,5 @@
-linux_CFLAGS=-pipe
-linux_CXXFLAGS=$(linux_CFLAGS)
+linux_CFLAGS=-pipe -std=$(C_STANDARD)
+linux_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
 linux_ARFLAGS=cr
 
 linux_release_CFLAGS=-O2

contrib/depends/hosts/mingw32.mk

@@ -1,5 +1,5 @@
-mingw32_CFLAGS=-pipe
-mingw32_CXXFLAGS=$(mingw32_CFLAGS)
+mingw32_CFLAGS=-pipe -std=$(C_STANDARD)
+mingw32_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
 mingw32_ARFLAGS=cr
 
 mingw32_release_CFLAGS=-O2

contrib/depends/packages/boost.mk

@@ -20,7 +20,6 @@ $(package)_toolset_$(host_os)=gcc
 $(package)_archiver_$(host_os)=$($(package)_ar)
 $(package)_config_libraries_$(host_os)="chrono,filesystem,program_options,system,thread,test,date_time,regex,serialization"
 $(package)_config_libraries_mingw32="chrono,filesystem,program_options,system,thread,test,date_time,regex,serialization,locale"
-$(package)_cxxflags=-std=c++17
 $(package)_cxxflags_linux+=-fPIC
 $(package)_cxxflags_freebsd+=-fPIC
 $(package)_cxxflags_darwin+=-ffile-prefix-map=$($(package)_extract_dir)=/usr

contrib/depends/packages/native_protobuf.mk

@@ -4,7 +4,6 @@ $(package)_version_protobuf_cpp=3.21.12
 $(package)_download_path=https://github.com/protocolbuffers/protobuf/releases/download/v$($(package)_version)/
 $(package)_file_name=protobuf-cpp-$($(package)_version_protobuf_cpp).tar.gz
 $(package)_sha256_hash=4eab9b524aa5913c6fffb20b2a8abf5ef7f95a80bc0701f3a6dbb4c607f73460
-$(package)_cxxflags=-std=c++11
 
 define $(package)_set_vars
   $(package)_config_opts=--disable-shared --prefix=$(build_prefix)

contrib/depends/packages/protobuf.mk

@@ -5,7 +5,6 @@ $(package)_download_path=$(native_$(package)_download_path)
 $(package)_file_name=$(native_$(package)_file_name)
 $(package)_sha256_hash=$(native_$(package)_sha256_hash)
 $(package)_dependencies=native_$(package)
-$(package)_cxxflags=-std=c++11
 
 define $(package)_set_vars
   $(package)_config_opts=--disable-shared --with-protoc=$(build_prefix)/bin/protoc

contrib/depends/packages/zeromq.mk

@@ -6,7 +6,6 @@ $(package)_sha256_hash=6653ef5910f17954861fe72332e68b03ca6e4d9c7160eb3a8de5a5a91
 
 define $(package)_set_vars
   $(package)_config_opts=--without-documentation --disable-shared --without-libsodium --disable-curve
-  $(package)_cxxflags=-std=c++11
 endef
 
 define $(package)_preprocess_cmds