z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

make
Limits
Usage notes
Portability
v Incorrect library format
v Inability to touch library member
v SHELL macro not defined
v Too many arguments
v Inability to export NAME
v Inability to open file
v Circular dependency detected
v Inability to stat /
v Inability to stat .
v Inability to open ..
v Read error in ..
v Metarule too long: "rule"
1. The length of a single makefile script line cannot exceed 32768 characters.
2. The length of an argument string cannot exceed 32768 characters.
3. The length of a macro name gets truncated after 256 characters.
1. When the .SETDIR special target is used, make checks the file attributes of
targets and prerequisites on every pass through a rule. This can significantly
increase the number of system accesses.
2. In a doublebyte environment, any character interpreted by make can be a
doublebyte character, including those in macro definitions and targets.
3. In a doublebyte locale, if make encounters an incorrect doublebyte sequence, it
ends with an error message.
POSIX.2, X/Open Portability Guide, UNIX systems.
The following features of make are enhancements to POSIX.2:
v The options: –cdir, –D macro definition, –E, –u, –V, –v, and –x.
v The –n option has enhanced functionality not covered by the standard; for more
information, see the –n option and the POSIX special target for make.
v The runtime macros: $&, $^ , $>.
v The dynamic prerequisites: $$%, $$>, $$*, $$@.
v All macro expansions.
v Macro assignments of the following form:
macroname := stringassigned
macroname += stringassigned
v Brace expansion.
v Backslash continuation.
v The quoting mechanism, as in the following example:
"a:target" : "a:prerequisite"
v All rule operators except the colon (:).
v Conditionals.
v Metarules.
v All make attributes except .IGNORE, .PRECIOUS, .SILENT (referred to in POSIX.2
as special targets).
412 z/OS V1R9.0 UNIX System Services Command Reference