cmake: avoid de-duplication of user's CXXFLAGS master
authorMike Gilbert <floppym@gentoo.org>
Sat, 8 Jan 2022 18:26:05 +0000 (13:26 -0500)
committerManuel Nickschas <sputnick@quassel-irc.org>
Sun, 13 Feb 2022 23:48:12 +0000 (00:48 +0100)
commit367fc85fb3433a79a582b4a52a4f8f24d9d13d72
tree764be7389e0372ed1c16d64ca7d82269d336e16c
parentc8ddabf364eff2400c61cea395aefe69eb8ba1b3
cmake: avoid de-duplication of user's CXXFLAGS

Use the "SHELL:" prefix behavior introduced in cmake 3.12 to avoid the
option de-duplication behavior of add_compile_options().

Bug: https://bugs.gentoo.org/830738
cmake/QuasselMacros.cmake