HP UX Fortran Software manual 30

• The current working directory

• The /usr/include directory

+[no]implicit_none	+implicit none forces the types of identifiers to be implicitly undefined.
	This is equivalent to specifying IMPLICIT NONE for each program unit
	in each file in the files list. The source code that is to be compiled with
	this option may contain other	IMPLICIT statements; the statements will
	be honored. The default, +noimplicit_none, allows identifiers to be
	implicitly defined.
+indirectcommonlist=file	The common blocks listed in file (one per line, no enclosing ‘ / ‘s) are
	treated as shared common blocks, but are not attached. The user must
	attach or otherwise allocate storage for such common blocks before they
	are referenced.
	A C language program would typically be used to either attach a shared
	memory segment, or malloc a block of memory, and store that address
	into the external symbol for the common block. All Fortran code that
	references such a common block will indirect through the address in the
	external symbol for that indirect common block.
	All source files that reference variables in such a common block must be
	compiled with the +indirectcommonlist flag, and that common
	block name must appear in the named file.
+initheap_complex=rval:ival	Default initialization of heap variables (mentioned in +initheap_set option)
	of type complex. rval is real part and ival is imaginary part of complex
	number. Valid values for rval and ival are normal real numbers, nan ,
	snan.
	The numbers represented by rval/ival are mentioned in below table.
	Table 12
	Val		Num
	nan		quiet NaN
	snan		Signaling NaN
	snan is supported at default optimization level only.
+initheap_integer=ival	Default initialization of heap variables (mentioned in +initheap_set option)
	of type integer. Valid values of ival are integer values of the form decimal,
	octal (starting with 0) and hexadecimal (starting with 0x).
+initheap_real=rval	Default initialization of heap variables (mentioned in +initheap_set option)
	of type real. Valid values for rval are normal real numbers, nan, snan.
	Table 13
	Val			Num
	nan			Quiet NaN
	snan			Signaling NaN
	snan is supported at default optimization level only.
+initheap_set=var	Default Initialization of heap variables is done for the variables specified
	by var.
	The defined values for var are:
	Table 14
	all		all heap variables
	allocatable		variables having allocatable
			attribute
	common		variables in common block
	module		variables in module

30 Compiling and linking