#-fall-intrinsics: all intrinsic procedures (including the GNU-specific extensions) are accepted. This can be useful with -std=f95 to force standard-compliance
# but get access to the full range of intrinsics available with gfortran. As a consequence, -Wintrinsics-std will be ignored and no user-defined
# procedure with the same name as any intrinsic will be called except when it is explicitly declared external
#-Wintrinsics-std: warnings because of "flush" is not longer in the standard, but still an intrinsic fuction of the compilers
# truncated_source: Determines whether warnings occur when source exceeds the maximum column width in fixed-format files. (too many warnings because we have comments beyond character 132)
# uncalled: Determines whether warnings occur when a statement function is never called
# all:
#
#OPTIONS FOR DEGUBBING DURING RUNTIME
# information on http://software.intel.com/en-us/articles/determining-root-cause-of-sigsegv-or-sigbus-errors/
#-g: Generate symbolic debugging information in the object file
#-traceback: Generate extra information in the object file to provide source file traceback information when a severe error occurs at run time.
#-gen-interfaces: Generate an interface block for each routine. http://software.intel.com/en-us/blogs/2012/01/05/doctor-fortran-gets-explicit-again/
#-fp-stack-check: Generate extra code after every function call to ensure that the floating-point (FP) stack is in the expected state.
#-check: checks at runtime, where
# bounds: check if an array index is too small (<1) or too large!
# arg_temp_created: will cause a lot of warnings because we create a bunch of temporary arrays
# format: Checking for the data type of an item being formatted for output.
# output_conversion: Checking for the fit of data items within a designated format descriptor field.
# pointers: Checking for certain disassociated or uninitialized pointers or unallocated allocatable objects.
# uninit: Checking for uninitialized variables.
#-heap-arrays: should not be done for OpenMP, but set "ulimit -s unlimited" on shell. Probably it helps also to unlimit other limits
#
#OPTIONS FOR TYPE DEBUGGING
#-real-size 32: set precision to one of those 32/64/128 (= 4/8/16 bytes) for standard real (=8 for pReal)
#-integer-size 16: set precision to one of those 16/32/64 (= 2/4/8 bytes) for standard integer (=4 for pInt)
#-ffree-line-length-132: restrict line length to the standard 132 characters
#-fno-range-check: disables checking if result can be represented by variable. Needs to be set to enable DAMASK_NaN
#-fimplicit-none: assume "implicit-none" even if not present in source
#-pedantic: more strict on standard, enables some of the warnings below
#-Warray-bounds: checks if array reference is out of bounds at compile time. use -fcheck-bounds to also check during runtime
#-Wampersand: checks if a character expression is continued proberly by an ampersand at the end of the line and at the beginning of the new line
#-Wno-tabs: do not allow tabs in source
#-Wcharacter-truncation: warn if character expressions (strings) are truncated
#-Wintrinsic-shadow: warn if a user-defined procedure or module procedure has the same name as an intrinsic
#-Waliasing: warn about possible aliasing of dummy arguments. Specifically, it warns if the same actual argument is associated with a dummy argument with "INTENT(IN)" and a dummy argument with "INTENT(OUT)" in a call with an explicit interface.
#-Wconversion: warn about implicit conversions between different type
#-Wsurprising: warn when "suspicious" code constructs are encountered. While technically legal these usually indicate that an error has been made.
#-Wunderflow: produce a warning when numerical constant expressions are encountered, which yield an UNDERFLOW during compilation
#-Wswitch: warn whenever a "switch" statement has an index of enumerated type and lacks a "case" for one or more of the named codes of that enumeration. (The presence of a "default" label prevents this warning.) "case" labels outside the enumeration range also provokewarnings when this option is used (even if there is a "default" label)
#-Wstrict-overflow:
#-Wattributes: warn about inappropriate attribute usage
#-Wunsafe-loop-optimizations: warn if the loop cannot be optimized due to nontrivial assumptions.
#-Wunused:
# -value:
# -parameter: find usused variables with "parameter" attribute
#-fcheck-bounds: check if an array index is too small (<1) or too large!
#
#OPTIONS FOR TYPE DEBUGGING
#-fdefault-real-8: set precision to 8 bytes for standard real (=8 for pReal). Will set size of double to 16 bytes as long as -fdefault-double-8 is not set
#-fdefault-integer-8: set precision to 8 bytes for standard integer (=4 for pInt)
