- uses '-g -DFULLDEBUG' (like Debug), but with -O3 (like Opt).
This adds in debug symbols and FULLDEBUG code segments (good for
code development) but retains -O3 optimizations and code paths and
avoids the much slower -O0 associated with 'Debug'.
- add in central wmake/General/common/{c,c++}XXX tuning,
which helps reduce the number of nearly identical files
ENH: add support for wmake -debug-Og
- for compilers such as gcc and clang, may have several different
variants installed on the computer. Use WM_COMPILER_CONTROL to
specify the preferred variant.
Eg,
WM_COMPILER=Gcc
WM_COMPILER_CONTROL="version=8"
will compile with "gcc-8" and "g++-8"
Good practice would be to tag output directory names with the
version too. Eg
WM_COMPILER=Clang110
WM_COMPILER_CONTROL="version=11.0"
STYLE: modify message for change of gcc -> clang (darwin)
- with 1906, OpenFOAM is purely C++ code and the last toolchain bits C
code have been avoided. Thus relax the wmake C rule for including
WM_COMPILE_OPTION. This makes it much easier to add different
compiler options with fewer files.
For example, for Broadwell-specific options:
cd wmake/rules/linux64Gcc
cp c++Opt c++OptBdw
edit this file and then use WM_COMPILE_OPTION=OptBdw
- ensure that WM_COMPILE_OPTION is always non-empty
- with -mcpu=native for automatic detection and -armpl for linking in
the performance libraries
STYLE: relocate -mcpu into compiler instead of compiler-flags (#1225)
which may be optionally overridden by version-specific rules.
For example the default rules for gcc on GNU/Linux x86_64 are in the
wmake/rules/linux64Gcc directory. If there is a need to change any of
the rules for a specific version of gcc, e.g. gcc-4.8.4 the directory
wmake/rules/linux64Gcc48 may be created into which any of the language
files may be provided containing the rules to override the defaults.
