Supported Clang options

Open XL C/C++ for z/OS® provides official support for the following Clang options only. For details about these options, see Clang command line argument reference.

• -###
• --config
• --help ¹
• --version
• -C
• -c
• -cxx-isystem
• -D
• -dD
• -dependency-file
• -dI
• -dM
• -E
• -e
• -emit-ast
• -faligned-allocation
• -faligned-alloc-unavailable
• -fassociative-math, -fno-associative-math
• -fcheck-new
• -fclang-abi-compat
• -fcxx-exceptions
• -fdebug-compilation-dir=<dir>
• -fdigraphs, -fno-digraphs
• -fdollars-in-identifiers, -fno-dollars-in-identifiers
• -fdump-record-layouts
• -fexceptions, -fno-exceptions
• -ffast-math,-fno-fast-math
• -ffinite-math-only, -fno-finite-math-only
• -ffp-contract
• -fhonor-infinities, -fno-honor-infinities
• -fhonor-nans, -fno-honor-nans
• -fignore-exceptions
• -finline, -fno-inline
• -finline-functions, -fno-inline-functions
• -finline-hint-functions
• -fintegrated-as, -fno-integrated-as
• -fmath-errno, -fno-math-errno
• -fno-signed-whcar
• -fno-strict-overflow
• -freciprocal-math, -fno-reciprocal-math
• -frestrict-args
• -frtti, -fno-rtti
• -frounding-math, -fno-rounding-math
• -fshort-enums, -fno-short-enums
• -fsigned-bitfields, -funsigned-bitfields
• -fsigned-zeros, -fno-signed-zeros
• -fsigned-char, -fno-signed-char, -funsigned-char
• -fslp-vectorize
• -fstack-protector, -fno-stack-protector
• -fstack-protector-all
• -fstack-protector-strong
• -fstrict-aliasing
• -ftemplate-depth
• -ftime-report
• -ftrapping-math, -fno-trapping-math
• -ftrigraphs, -fno-trigraphs
• -funique-internal-linkage-names
• -funroll-loops, -fno-unroll-loops
• -fvectorize
• -fvisibility
• -fwrapv
• -fwrapv-pointer
• -fwritable-strings
• -fxl-pragma-pack
• -fzvector, -fno-zvector
• -g
• -gdwarf-4
• -gdwarf-5
• -gsplit-dwarf
• -H
• -I
• -include
• -L
• -l
• -M
• -MD
• -MF
• -MM
• -MMD
• -MQ
• -MT
• -march
• -mbackchain
• -mvx, -mno-vx
• -mzvector
• -O, -O1, -O2, -O3, -Os, -Oz
• -o
• -P
• -r
• -shared, --shared
• -std
• -U
• -v
• -W<group>
• -Wa,<arg>
• -Wc,<arg>
• -Wl,<arg>
• -x