739 lines
20 KiB
Matlab
739 lines
20 KiB
Matlab
\" $Id$
|
|
|
|
.TH OCAMLC 1
|
|
|
|
.SH NAME
|
|
ocamlc \- The Objective Caml bytecode compiler
|
|
|
|
.SH SYNOPSIS
|
|
.B ocamlc
|
|
[
|
|
.I options
|
|
]
|
|
.I filename ...
|
|
|
|
.B ocamlc.opt
|
|
[
|
|
.I options
|
|
]
|
|
.I filename ...
|
|
|
|
.SH DESCRIPTION
|
|
|
|
The Objective Caml bytecode compiler
|
|
.BR ocamlc (1)
|
|
compiles Caml source files to bytecode object files and links
|
|
these object files to produce standalone bytecode executable files.
|
|
These executable files are then run by the bytecode interpreter
|
|
.BR ocamlrun (1).
|
|
|
|
The
|
|
.BR ocamlc (1)
|
|
command has a command-line interface similar to the one of
|
|
most C compilers. It accepts several types of arguments and processes them
|
|
sequentially:
|
|
|
|
Arguments ending in .mli are taken to be source files for
|
|
compilation unit interfaces. Interfaces specify the names exported by
|
|
compilation units: they declare value names with their types, define
|
|
public data types, declare abstract data types, and so on. From the
|
|
file
|
|
.IR x \&.mli,
|
|
the
|
|
.BR ocamlc (1)
|
|
compiler produces a compiled interface
|
|
in the file
|
|
.IR x \&.cmi.
|
|
|
|
Arguments ending in .ml are taken to be source files for compilation
|
|
unit implementations. Implementations provide definitions for the
|
|
names exported by the unit, and also contain expressions to be
|
|
evaluated for their side-effects. From the file
|
|
.IR x \&.ml,
|
|
the
|
|
.BR ocamlc (1)
|
|
compiler produces compiled object bytecode in the file
|
|
.IR x \&.cmo.
|
|
|
|
If the interface file
|
|
.IR x \&.mli
|
|
exists, the implementation
|
|
.IR x \&.ml
|
|
is checked against the corresponding compiled interface
|
|
.IR x \&.cmi,
|
|
which is assumed to exist. If no interface
|
|
.IR x \&.mli
|
|
is provided, the compilation of
|
|
.IR x \&.ml
|
|
produces a compiled interface file
|
|
.IR x \&.cmi
|
|
in addition to the compiled object code file
|
|
.IR x \&.cmo.
|
|
The file
|
|
.IR x \&.cmi
|
|
produced
|
|
corresponds to an interface that exports everything that is defined in
|
|
the implementation
|
|
.IR x \&.ml.
|
|
|
|
Arguments ending in .cmo are taken to be compiled object bytecode. These
|
|
files are linked together, along with the object files obtained
|
|
by compiling .ml arguments (if any), and the Caml Light standard
|
|
library, to produce a standalone executable program. The order in
|
|
which .cmo and.ml arguments are presented on the command line is
|
|
relevant: compilation units are initialized in that order at
|
|
run-time, and it is a link-time error to use a component of a unit
|
|
before having initialized it. Hence, a given
|
|
.IR x \&.cmo
|
|
file must come before all .cmo files that refer to the unit
|
|
.IR x .
|
|
|
|
Arguments ending in .cma are taken to be libraries of object bytecode.
|
|
A library of object bytecode packs in a single file a set of object
|
|
bytecode files (.cmo files). Libraries are built with
|
|
.B ocamlc\ \-a
|
|
(see the description of the
|
|
.B \-a
|
|
option below). The object files
|
|
contained in the library are linked as regular .cmo files (see above),
|
|
in the order specified when the .cma file was built. The only
|
|
difference is that if an object file
|
|
contained in a library is not referenced anywhere in the program, then
|
|
it is not linked in.
|
|
|
|
Arguments ending in .c are passed to the C compiler, which generates
|
|
a .o object file. This object file is linked with the program if the
|
|
.B \-custom
|
|
flag is set (see the description of
|
|
.B \-custom
|
|
below).
|
|
|
|
Arguments ending in .o or .a are assumed to be C object files and
|
|
libraries. They are passed to the C linker when linking in
|
|
.B \-custom
|
|
mode (see the description of
|
|
.B \-custom
|
|
below).
|
|
|
|
Arguments ending in .so
|
|
are assumed to be C shared libraries (DLLs). During linking, they are
|
|
searched for external C functions referenced from the Caml code,
|
|
and their names are written in the generated bytecode executable.
|
|
The run-time system
|
|
.BR ocamlrun (1)
|
|
then loads them dynamically at program start-up time.
|
|
|
|
The output of the linking phase is a file containing compiled bytecode
|
|
that can be executed by the Objective Caml bytecode interpreter:
|
|
the command
|
|
.BR ocamlrun (1).
|
|
If
|
|
.B caml.out
|
|
is the name of the file produced by the linking phase, the command
|
|
.B ocamlrun caml.out
|
|
.IR arg1 \ \ arg2 \ ... \ argn
|
|
executes the compiled code contained in
|
|
.BR caml.out ,
|
|
passing it as arguments the character strings
|
|
.I arg1
|
|
to
|
|
.IR argn .
|
|
(See
|
|
.BR ocamlrun (1)
|
|
for more details.)
|
|
|
|
On most systems, the file produced by the linking
|
|
phase can be run directly, as in:
|
|
.B ./caml.out
|
|
.IR arg1 \ \ arg2 \ ... \ argn .
|
|
The produced file has the executable bit set, and it manages to launch
|
|
the bytecode interpreter by itself.
|
|
|
|
.B ocamlc.opt
|
|
is the same compiler as
|
|
.BR ocamlc ,
|
|
but compiled with the native-code compiler
|
|
.BR ocamlopt (1).
|
|
Thus, it behaves exactly like
|
|
.BR ocamlc ,
|
|
but compiles faster.
|
|
.B ocamlc.opt
|
|
may not be available in all installations of Objective Caml.
|
|
|
|
.SH OPTIONS
|
|
|
|
The following command-line options are recognized by
|
|
.BR ocamlc (1).
|
|
.TP
|
|
.B \-a
|
|
Build a library (.cma file) with the object files (.cmo files) given
|
|
on the command line, instead of linking them into an executable
|
|
file. The name of the library must be set with the
|
|
.B \-o
|
|
option.
|
|
.IP
|
|
If
|
|
.BR \-custom , \ \-cclib \ or \ \-ccopt
|
|
options are passed on the command
|
|
line, these options are stored in the resulting .cma library. Then,
|
|
linking with this library automatically adds back the
|
|
.BR \-custom , \ \-cclib \ and \ \-ccopt
|
|
options as if they had been provided on the
|
|
command line, unless the
|
|
.B -noautolink
|
|
option is given.
|
|
.TP
|
|
.B \-annot
|
|
Dump detailed information about the compilation (types, bindings,
|
|
tail-calls, etc). The information for file
|
|
.IR src .ml
|
|
is put into file
|
|
.IR src .annot.
|
|
In case of a type error, dump all the information inferred by the
|
|
type-checker before the error. The
|
|
.IR src .annot
|
|
file can be used with the emacs commands given in
|
|
.B emacs/caml\-types.el
|
|
to display types and other annotations interactively.
|
|
.TP
|
|
.B \-c
|
|
Compile only. Suppress the linking phase of the
|
|
compilation. Source code files are turned into compiled files, but no
|
|
executable file is produced. This option is useful to
|
|
compile modules separately.
|
|
.TP
|
|
.BI \-cc \ ccomp
|
|
Use
|
|
.I ccomp
|
|
as the C linker when linking in "custom runtime" mode (see the
|
|
.B \-custom
|
|
option) and as the C compiler for compiling .c source files.
|
|
.TP
|
|
.BI \-cclib\ -l libname
|
|
Pass the
|
|
.BI \-l libname
|
|
option to the C linker when linking in "custom runtime" mode (see the
|
|
.B \-custom
|
|
option). This causes the given C library to be linked with the program.
|
|
.TP
|
|
.B \-ccopt
|
|
Pass the given option to the C compiler and linker, when linking in
|
|
"custom runtime" mode (see the
|
|
.B \-custom
|
|
option). For instance,
|
|
.BI \-ccopt\ \-L dir
|
|
causes the C linker to search for C libraries in
|
|
directory
|
|
.IR dir .
|
|
.TP
|
|
.B \-config
|
|
Print the version number of
|
|
.BR ocamlc (1)
|
|
and a detailed summary of its configuration, then exit.
|
|
.TP
|
|
.B \-custom
|
|
Link in "custom runtime" mode. In the default linking mode, the
|
|
linker produces bytecode that is intended to be executed with the
|
|
shared runtime system,
|
|
.BR ocamlrun (1).
|
|
In the custom runtime mode, the
|
|
linker produces an output file that contains both the runtime system
|
|
and the bytecode for the program. The resulting file is larger, but it
|
|
can be executed directly, even if the
|
|
.BR ocamlrun (1)
|
|
command is not
|
|
installed. Moreover, the "custom runtime" mode enables linking Caml
|
|
code with user-defined C functions.
|
|
|
|
Never use the
|
|
.BR strip (1)
|
|
command on executables produced by
|
|
.BR ocamlc\ \-custom ,
|
|
this would remove the bytecode part of the executable.
|
|
.TP
|
|
.BI \-dllib\ \-l libname
|
|
Arrange for the C shared library
|
|
.BI dll libname .so
|
|
to be loaded dynamically by the run-time system
|
|
.BR ocamlrun (1)
|
|
at program start-up time.
|
|
.TP
|
|
.BI \-dllpath \ dir
|
|
Adds the directory
|
|
.I dir
|
|
to the run-time search path for shared
|
|
C libraries. At link-time, shared libraries are searched in the
|
|
standard search path (the one corresponding to the
|
|
.B \-I
|
|
option).
|
|
The
|
|
.B \-dllpath
|
|
option simply stores
|
|
.I dir
|
|
in the produced
|
|
executable file, where
|
|
.BR ocamlrun (1)
|
|
can find it and use it.
|
|
.TP
|
|
.B \-g
|
|
Add debugging information while compiling and linking. This option is
|
|
required in order to be able to debug the program with
|
|
.BR ocamldebug (1)
|
|
and to produce stack backtraces when
|
|
the program terminates on an uncaught exception.
|
|
.TP
|
|
.B \-i
|
|
Cause the compiler to print all defined names (with their inferred
|
|
types or their definitions) when compiling an implementation (.ml
|
|
file). No compiled files (.cmo and .cmi files) are produced.
|
|
This can be useful to check the types inferred by the
|
|
compiler. Also, since the output follows the syntax of interfaces, it
|
|
can help in writing an explicit interface (.mli file) for a file: just
|
|
redirect the standard output of the compiler to a .mli file, and edit
|
|
that file to remove all declarations of unexported names.
|
|
.TP
|
|
.BI \-I \ directory
|
|
Add the given directory to the list of directories searched for
|
|
compiled interface files (.cmi), compiled object code files
|
|
(.cmo), libraries (.cma), and C libraries specified with
|
|
.B \-cclib\ \-l
|
|
.IR xxx .
|
|
By default, the current directory is searched first, then the
|
|
standard library directory. Directories added with
|
|
.B -I
|
|
are searched
|
|
after the current directory, in the order in which they were given on
|
|
the command line, but before the standard library directory.
|
|
|
|
If the given directory starts with
|
|
.BR + ,
|
|
it is taken relative to the
|
|
standard library directory. For instance,
|
|
.B \-I\ +labltk
|
|
adds the subdirectory
|
|
.B labltk
|
|
of the standard library to the search path.
|
|
.TP
|
|
.BI \-impl \ filename
|
|
Compile the file
|
|
.I filename
|
|
as an implementation file, even if its extension is not .ml.
|
|
.TP
|
|
.BI \-intf \ filename
|
|
Compile the file
|
|
.I filename
|
|
as an interface file, even if its extension is not .mli.
|
|
.TP
|
|
.BI \-intf\-suffix \ string
|
|
Recognize file names ending with
|
|
.I string
|
|
as interface files (instead of the default .mli).
|
|
.TP
|
|
.B \-labels
|
|
Labels are not ignored in types, labels may be used in applications,
|
|
and labelled parameters can be given in any order. This is the default.
|
|
.TP
|
|
.B \-linkall
|
|
Force all modules contained in libraries to be linked in. If this
|
|
flag is not given, unreferenced modules are not linked in. When
|
|
building a library (option
|
|
.BR \-a ),
|
|
setting the
|
|
.B \-linkall
|
|
option forces all subsequent links of programs involving that library
|
|
to link all the modules contained in the library.
|
|
.TP
|
|
.B \-make\-runtime
|
|
Build a custom runtime system (in the file specified by option
|
|
.BR \-o )
|
|
incorporating the C object files and libraries given on the command
|
|
line. This custom runtime system can be used later to execute
|
|
bytecode executables produced with the option
|
|
.B ocamlc\ \-use\-runtime
|
|
.IR runtime-name .
|
|
.TP
|
|
.B \-noassert
|
|
Do not compile assertion checks. Note that the special form
|
|
.B assert\ false
|
|
is always compiled because it is typed specially.
|
|
This flag has no effect when linking already-compiled files.
|
|
.TP
|
|
.B \-noautolink
|
|
When linking .cma libraries, ignore
|
|
.BR \-custom , \ \-cclib \ and \ \-ccopt
|
|
options potentially contained in the libraries (if these options were
|
|
given when building the libraries). This can be useful if a library
|
|
contains incorrect specifications of C libraries or C options; in this
|
|
case, during linking, set
|
|
.B \-noautolink
|
|
and pass the correct C libraries and options on the command line.
|
|
.TP
|
|
.B \-nolabels
|
|
Ignore non-optional labels in types. Labels cannot be used in
|
|
applications, and parameter order becomes strict.
|
|
.TP
|
|
.BI \-o \ exec\-file
|
|
Specify the name of the output file produced by the linker. The
|
|
default output name is
|
|
.BR a.out ,
|
|
in keeping with the Unix tradition. If the
|
|
.B \-a
|
|
option is given, specify the name of the library
|
|
produced. If the
|
|
.B \-pack
|
|
option is given, specify the name of the
|
|
packed object file produced. If the
|
|
.B \-output\-obj
|
|
option is given,
|
|
specify the name of the output file produced.
|
|
.TP
|
|
.B \-output\-obj
|
|
Cause the linker to produce a C object file instead of a bytecode
|
|
executable file. This is useful to wrap Caml code as a C library,
|
|
callable from any C program. The name of the output object file is
|
|
.B camlprog.o
|
|
by default; it can be set with the
|
|
.B \-o
|
|
option. This
|
|
option can also be used to produce a C source file (.c extension) or
|
|
a compiled shared/dynamic library (.so extension).
|
|
.TP
|
|
.B \-pack
|
|
Build a bytecode object file (.cmo file) and its associated compiled
|
|
interface (.cmi) that combines the object
|
|
files given on the command line, making them appear as sub-modules of
|
|
the output .cmo file. The name of the output .cmo file must be
|
|
given with the
|
|
.B \-o
|
|
option. For instance,
|
|
.B ocamlc\ \-pack\ \-o\ p.cmo\ a.cmo\ b.cmo\ c.cmo
|
|
generates compiled files p.cmo and p.cmi describing a compilation
|
|
unit having three sub-modules A, B and C, corresponding to the
|
|
contents of the object files a.cmo, b.cmo and c.cmo. These
|
|
contents can be referenced as P.A, P.B and P.C in the remainder
|
|
of the program.
|
|
.TP
|
|
.BI \-pp \ command
|
|
Cause the compiler to call the given
|
|
.I command
|
|
as a preprocessor for each source file. The output of
|
|
.I command
|
|
is redirected to
|
|
an intermediate file, which is compiled. If there are no compilation
|
|
errors, the intermediate file is deleted afterwards. The name of this
|
|
file is built from the basename of the source file with the
|
|
extension .ppi for an interface (.mli) file and .ppo for an
|
|
implementation (.ml) file.
|
|
.TP
|
|
.B \-principal
|
|
Check information path during type-checking, to make sure that all
|
|
types are derived in a principal way. When using labelled arguments
|
|
and/or polymorphic methods, this flag is required to ensure future
|
|
versions of the compiler will be able to infer types correctly, even
|
|
if internal algorithms change.
|
|
All programs accepted in
|
|
.B \-principal
|
|
mode are also accepted in the
|
|
default mode with equivalent types, but different binary signatures,
|
|
and this may slow down type checking; yet it is a good idea to
|
|
use it once before publishing source code.
|
|
.TP
|
|
.B \-rectypes
|
|
Allow arbitrary recursive types during type-checking. By default,
|
|
only recursive types where the recursion goes through an object type
|
|
are supported. Note that once you have created an interface using this
|
|
flag, you must use it again for all dependencies.
|
|
.TP
|
|
.B \-thread
|
|
Compile or link multithreaded programs, in combination with the
|
|
system "threads" library described in
|
|
.IR The\ Objective\ Caml\ user's\ manual .
|
|
.TP
|
|
.B \-unsafe
|
|
Turn bound checking off for array and string accesses (the
|
|
.BR v.(i) and s.[i]
|
|
constructs). Programs compiled with
|
|
.B \-unsafe
|
|
are therefore
|
|
slightly faster, but unsafe: anything can happen if the program
|
|
accesses an array or string outside of its bounds.
|
|
.TP
|
|
.BI \-use\-runtime \ runtime\-name
|
|
Generate a bytecode executable file that can be executed on the custom
|
|
runtime system
|
|
.IR runtime\-name ,
|
|
built earlier with
|
|
.B ocamlc\ \-make\-runtime
|
|
.IR runtime\-name .
|
|
.TP
|
|
.B \-v
|
|
Print the version number of the compiler and the location of the
|
|
standard library directory, then exit.
|
|
.TP
|
|
.B \-verbose
|
|
Print all external commands before they are executed, in particular
|
|
invocations of the C compiler and linker in
|
|
.B \-custom
|
|
mode. Useful to debug C library problems.
|
|
.TP
|
|
.B \-version
|
|
Print the version number of the compiler in short form (e.g. "3.11.0"),
|
|
then exit.
|
|
.TP
|
|
.B \-vmthread
|
|
Compile or link multithreaded programs, in combination with the
|
|
VM-level threads library described in
|
|
.IR The\ Objective\ Caml\ user's\ manual .
|
|
.TP
|
|
.BI \-w \ warning\-list
|
|
Enable, disable, or mark as errors the warnings specified by the argument
|
|
.IR warning\-list .
|
|
|
|
Each warning can be
|
|
.IR enabled \ or\ disabled ,
|
|
and each warning can be
|
|
.I marked
|
|
(as error) or
|
|
.IR unmarked .
|
|
If a warning is disabled, it isn't displayed and doesn't affect
|
|
compilation in any way (even if it is marked). If a warning is enabled,
|
|
it is displayed normally by the compiler whenever the source code
|
|
triggers it. If it is enabled and marked, the compiler will stop with
|
|
an error after displaying that warning if the source code triggers it.
|
|
|
|
The
|
|
.I warning\-list
|
|
argument is a sequence of warning specifiers, with no separators
|
|
between them. A warning specifier is one of the following:
|
|
|
|
.BI + num
|
|
\ \ Enable warning number
|
|
.IR num .
|
|
|
|
.BI \- num
|
|
\ \ Disable warning number
|
|
.IR num .
|
|
|
|
.BI @ num
|
|
\ \ Enable and mark warning number
|
|
.IR num .
|
|
|
|
.BI + letter
|
|
\ \ Enable the set of warnings corresponding to
|
|
.IR letter .
|
|
The letter may be uppercase or lowercase.
|
|
|
|
.BI \- letter
|
|
\ \ Disable the set of warnings corresponding to
|
|
.IR letter .
|
|
The letter may be uppercase or lowercase.
|
|
|
|
.BI @ letter
|
|
\ \ Enable and mark the set of warnings corresponding to
|
|
.IR letter .
|
|
The letter may be uppercase or lowercase.
|
|
|
|
.I uppercase\-letter
|
|
\ \ Enable the set of warnings corresponding to
|
|
.IR uppercase\-letter .
|
|
|
|
.I lowercase\-letter
|
|
\ \ Disable the set of warnings corresponding to
|
|
.IR lowercase\-letter .
|
|
|
|
The warning numbers are as follows.
|
|
|
|
1
|
|
\ \ \ Suspicious-looking start-of-comment mark.
|
|
|
|
2
|
|
\ \ \ Suspicious-looking end-of-comment mark.
|
|
|
|
3
|
|
\ \ \ Deprecated syntax.
|
|
|
|
4
|
|
\ \ \ Fragile pattern matching: matching that will remain
|
|
complete even if additional constructors are added to one of the
|
|
variant types matched.
|
|
|
|
5
|
|
\ \ \ Partially applied function: expression whose result has
|
|
function type and is ignored.
|
|
|
|
6
|
|
\ \ \ Label omitted in function application.
|
|
|
|
7
|
|
\ \ \ Some methods are overriden in the class where they are defined.
|
|
|
|
8
|
|
\ \ \ Partial match: missing cases in pattern-matching.
|
|
|
|
9
|
|
\ \ \ Missing fields in a record pattern.
|
|
|
|
10
|
|
\ \ Expression on the left-hand side of a sequence that doesn't
|
|
have type
|
|
.B unit
|
|
(and that is not a function, see warning number 5).
|
|
|
|
11
|
|
\ \ Redundant case in a pattern matching (unused match case).
|
|
|
|
12
|
|
\ \ Redundant sub-pattern in a pattern-matching.
|
|
|
|
13
|
|
\ \ Override of an instance variable.
|
|
|
|
14
|
|
\ \ Illegal backslash escape in a string constant.
|
|
|
|
15
|
|
\ \ Private method made public implicitly.
|
|
|
|
16
|
|
\ \ Unerasable optional argument.
|
|
|
|
17
|
|
\ \ Undeclared virtual method.
|
|
|
|
18
|
|
\ \ Non-principal type.
|
|
|
|
19
|
|
\ \ Type without principality.
|
|
|
|
20
|
|
\ \ Unused function argument.
|
|
|
|
21
|
|
\ \ Non-returning statement.
|
|
|
|
22
|
|
\ \ Camlp4 warning.
|
|
|
|
23
|
|
\ \ Useless record
|
|
.B with
|
|
clause.
|
|
|
|
24
|
|
\ \ Bad module name: the source file name is not a valid OCaml module name.
|
|
|
|
25
|
|
\ \ Pattern-matching with all clauses guarded.
|
|
|
|
26
|
|
\ \ Suspicious unused variable: unused variable that is bound with
|
|
.BR let \ or \ as ,
|
|
and doesn't start with an underscore (_) character.
|
|
|
|
27
|
|
\ \ Innocuous unused variable: unused variable that is not bound with
|
|
.BR let \ nor \ as ,
|
|
and doesn't start with an underscore (_) character.
|
|
|
|
The letters stand for the following sets of warnings. Any letter not
|
|
mentioned here corresponds to the empty set.
|
|
|
|
.B A
|
|
\ all warnings
|
|
|
|
.B C
|
|
\ 1, 2
|
|
|
|
.B D
|
|
\ 3
|
|
|
|
.B E
|
|
\ 4
|
|
|
|
.B F
|
|
\ 5
|
|
|
|
.B L
|
|
\ 6
|
|
|
|
.B M
|
|
\ 7
|
|
|
|
.B P
|
|
\ 8
|
|
|
|
.B R
|
|
\ 9
|
|
|
|
.B S
|
|
\ 10
|
|
|
|
.B U
|
|
\ 11, 12
|
|
|
|
.B V
|
|
\ 13
|
|
|
|
.B X
|
|
\ 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25
|
|
|
|
.B Y
|
|
\ 26
|
|
|
|
.B Z
|
|
\ 27
|
|
|
|
.IP
|
|
The default setting is
|
|
.BR \-w\ +a\-4\-6\-9\-27 ,
|
|
enabling all warnings except fragile pattern matchings, omitted labels,
|
|
missing fields in record patterns, and innocuous unused variables.
|
|
Note that warnings
|
|
.BR 5 \ and \ 10
|
|
are not always triggered, depending on the internals of the type checker.
|
|
.TP
|
|
.BI \-warn\-error \ warning\-list
|
|
Mark as errors the warnings specified in the argument
|
|
.IR warning\-list .
|
|
The compiler will stop with an error when one of these
|
|
warnings is emitted. The
|
|
.I warning\-list
|
|
has the same meaning as for
|
|
the
|
|
.B \-w
|
|
option: a
|
|
.B +
|
|
sign (or an uppercase letter) turns the corresponding warnings into errors, a
|
|
.B \-
|
|
sign (or a lowercase letter) turns them back into warnings, and a
|
|
.B @
|
|
sign both enables and marks the corresponding warnings.
|
|
|
|
Note: it is not recommended to use warning sets (i.e. letters) as
|
|
arguments to
|
|
.B \-warn\-error
|
|
in production code, because this can break your build when future versions
|
|
of OCaml add some new warnings.
|
|
|
|
The default setting is
|
|
.B \-warn\-error\ +a
|
|
(none of the warnings is treated as an error).
|
|
.TP
|
|
.B \-where
|
|
Print the location of the standard library, then exit.
|
|
.TP
|
|
.BI \- \ file
|
|
Process
|
|
.I file
|
|
as a file name, even if it starts with a dash (-) character.
|
|
.TP
|
|
.BR \-help \ or \ \-\-help
|
|
Display a short usage summary and exit.
|
|
|
|
.SH SEE ALSO
|
|
.BR ocamlopt (1), \ ocamlrun (1), \ ocaml (1).
|
|
.br
|
|
.IR "The Objective Caml user's manual" ,
|
|
chapter "Batch compilation".
|