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Properly support the Intel compiler with the CMake build #68

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Properly support the Intel compiler with the CMake build #68

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2f31053
Allow overriding default compiler flag in CMake
mortenpi Jun 2, 2021
67c9f25
Use new variable to control defaults: GRASP_DEFAULT_FLAGS
mortenpi Jun 6, 2021
6fcd439
Edits
mortenpi Jun 6, 2021
b061815
revert to modern sys mkdir call
jongrumer Jun 8, 2021
868616e
add -mkl to default ifort CMake flags
jongrumer Jun 8, 2021
db82cb1
Merge branch 'master' into mp/cmake-options
mortenpi Feb 15, 2022
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35 changes: 30 additions & 5 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -99,18 +99,43 @@ set(CMAKE_INSTALL_PREFIX ${PROJECT_SOURCE_DIR})

# Additional Fortran compiler flags.
#
# -fno-automatic: this was set in the original make_environment_gfortran_UBC file.
# To set additional compiler flags, you can set CMAKE_Fortran_FLAGS when invoking CMake.
# For example
#
# Note: optimization should be enabled on the Release target automatically.
# cmake -DCMAKE_Fortran_FLAGS="-fconvert=big-endian" ..
#
# If need be, you can also set up linker flags. E.g.:
# Note: there is no need to pass optimization flags explicitly (e.g. -O2) -- CMake enables
# -O2 automatically on the Release target. Similarly, -g is automatically set for the Debug
# target.
#
# set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libgfortran")
# Similarly, additional linker options can be passed via CMAKE_EXE_LINKER_FLAGS, e.g.
#
set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fno-automatic")
# cmake -DCMAKE_EXE_LINKER_FLAGS="-static-libgfortran" ..
#
# Default flags (in addition to CMake defaults):
#
# -fno-automatic / -save: these were set in the original Makefiles
#
# To disable GRASP-specific default flags, you can set GRASP_DEFAULT_FLAGS=FALSE when
# calling CMake with
#
# cmake -DGRASP_DEFAULT_FLAGS=FALSE ..
#
set(GRASP_DEFAULT_FLAGS TRUE CACHE BOOL "If TRUE (default), -fno-automatic (gfortran) or -save (ifort) is automatically set in CMAKE_Fortran_FLAGS.")
if(GRASP_DEFAULT_FLAGS)
if(CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fno-automatic")
elseif(CMAKE_Fortran_COMPILER_ID STREQUAL "Intel")
set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -save")
else()
message(WARNING "GRASP requires -fno-automatic or -save or equivalent, but is unable to determine the correct argument for this compiler (${CMAKE_Fortran_COMPILER_ID})")
endif()
endif()

message("Compiler flags etc. for this GRASP build:")
message("* GRASP_DEFAULT_FLAGS: ${GRASP_DEFAULT_FLAGS}")
message("* CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
message("* CMAKE_Fortran_COMPILER_ID: ${CMAKE_Fortran_COMPILER_ID}")
message("* CMAKE_Fortran_COMPILER: ${CMAKE_Fortran_COMPILER}")
message("* CMAKE_Fortran_COMPILER_VERSION: ${CMAKE_Fortran_COMPILER_VERSION}")
message("* CMAKE_Fortran_FLAGS: ${CMAKE_Fortran_FLAGS}")
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