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COMP: stricter handling of openmp vs no-openmp

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- give precedence to ~openmp (-no-openmp) over +openmp (-openmp)
  in the general rules and in the Makefile. This makes it robuster
  when specifying +openmp in general, but ~openmp for specific build
  components.

- disable openmp for OSspecific and Pstream components.
  Neither should contain any openmp code anyhow.

  Additionally, since OSspecific is generally built as a static
  object, it can become problematic (eg, with AMD ROCm) if the
  compiler generates information that openmp is required but then uses
  static linkage.
This commit is contained in:
Mark Olesen
2023-12-11 09:54:49 +01:00
parent cd493897d3
commit d086cc5a0e
9 changed files with 61 additions and 18 deletions
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8
wmake/rules/General/general
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@ -52,9 +52,13 @@ sinclude $(RULES)/general
sinclude $(RULES)/c++
endif
# Add compile flags for openmp
# Compile flags for openmp
# - if enabled (+openmp) and not disabled (~openmp).
# - disable has higher precedence
ifeq (,$(findstring ~openmp,$(WM_COMPILE_CONTROL)))
ifneq (,$(findstring +openmp,$(WM_COMPILE_CONTROL)))
c++FLAGS += $(COMP_OPENMP)
c++FLAGS += $(COMP_OPENMP)
endif
endif
include $(GENERAL_RULES)/transform