compilation with C++17

[S0me6uy]

Hello,

I'm actually building and compiling qBittorrent, but i've an issue during configure step.
Everything was just fine until here :

toto@server:~/qBittorrent$ ./configure CXXFLAGS="-std=c++14" --disable-gui
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether gcc accepts -g... yes
checking for gcc option to enable C11 features... none needed
checking whether gcc understands -c and -o together... yes
checking for g++... g++
checking whether the compiler supports GNU C++... yes
checking whether g++ accepts -g... yes
checking for g++ option to enable C++11 features... none needed
checking for a sed that does not truncate output... /usr/bin/sed
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports the include directive... yes (GNU style)
checking whether make supports nested variables... yes
checking dependency style of gcc... none
checking dependency style of g++... none
checking whether OS is FreeBSD... no
checking whether OS is macOS... no
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.23... yes
checking whether to enable the Debug build... no
checking whether to enable the stacktrace feature... yes
checking whether to enable the GUI... no
checking whether to install the systemd service file... no
checking whether to enable the WebUI... yes
checking for Qt5 qmake >= 5.11... /usr/lib/x86_64-linux-gnu/qt5/bin/qmake
checking whether QtDBus should be enabled... no
checking for boostlib >= 1.65 (106500)... yes
configure: Boost CXXFLAGS: "-I/usr/include"
configure: Boost LDFLAGS: "-L/usr/lib/x86_64-linux-gnu"
checking whether the Boost::System library is available... yes
checking for exit in -lboost_system... yes
configure: Boost.System LIB: "-lboost_system"
checking for libtorrent... yes
checking for openssl... yes
checking for zlib... yes
checking if compiler defaults to C++17 or later mode... no
checking if compiler supports C++17... yes
checking if C++17 is disabled by the set compiler flags... yes

configure: error: The compiler supports C++17 but the user or a dependency has explicitly enabled a lower mode.

toto@server:~/qBittorrent$

i've really no idea how to solve this version issue and i'd be gratefull for any knid of help...

Thank you

[c0re100]

./configure CXXFLAGS="-std=c++17" --disable-gui

[S0me6uy]

Just thank you. nothing to add...
i'll sleep asap ! 🥇