summaryrefslogtreecommitdiff
path: root/share/cmake-3.18/Help/envvar/CXXFLAGS.rst
blob: 460a347c5467114ca311727511654737ccf23be9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
CXXFLAGS
--------

.. include:: ENV_VAR.txt

Default compilation flags to be used when compiling ``CXX`` (C++) files. Will
only be used by CMake on the first configuration to determine ``CXX`` default
compilation flags, after which the value for ``CXXFLAGS`` is stored in the cache
as :variable:`CMAKE_CXX_FLAGS <CMAKE_<LANG>_FLAGS>`. For any configuration run (
including the first), the environment variable will be ignored if
the :variable:`CMAKE_CXX_FLAGS <CMAKE_<LANG>_FLAGS>` variable is defined.

See also :variable:`CMAKE_CXX_FLAGS_INIT <CMAKE_<LANG>_FLAGS_INIT>`.