.TH "ocamlfind" "1" "The findlib package manager for OCaml" "User Manual"
.SH "NAME"
.ft R
ocamlfind - [Command-line interface of the Package manager]\c
.SH "SYNOPSIS"
.ft R
.ft R
.ft B
.nf
\&\ \ \ \ \ \ \ ocamlfind\ query\ [-help\ |\ other\ options]\ \c
.ft I
package_name\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ ocamlc\ [-help\ |\ other\ options]\ \c
.ft I
file\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ ocamlcp\ [-help\ |\ other\ options]\ \c
.ft I
file\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ ocamlmktop\ [-help\ |\ other\ options]\ \c
.ft I
file\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ ocamlopt\ [-help\ |\ other\ options]\ \c
.ft I
file\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ ocamldoc\ [-help\ |\ other\ options]\ \c
.ft I
file\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ ocamldep\ [-help\ |\ other\ options]\ \c
.ft I
file\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ ocamlmklib\ [-help\ |\ other\ options]\ \c
.ft I
file\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ ocamlbrowser\ [-help\ |\ other\ options]\c
\&
.br
\&\ \ \ or:\ ocamlfind\ install\ [-help\ |\ other\ options]\ \c
.ft I
package_name\c
.ft B
\&\ \c
.ft I
file\c
.ft B
\&\ ...\c
\&
.br
\&\ \ \ or:\ ocamlfind\ remove\ [-help\ |\ other\ options]\ \c
.ft I
package_name\c
.ft B
\&
.br
\&\ \ \ or:\ ocamlfind\ list\ [-describe]\c
\&
.br
\&\ \ \ or:\ ocamlfind\ printconf\ [\ variable\ ]\c
\&
.br
\&\ \ \ or:\ ocamlfind\ \c
.ft I
package\c
.ft B
/\c
.ft I
command\c
.ft B
\&\ \c
.ft I
arg\c
.ft B
\&\ ...\c
\&
.br
\&
.br
Optional\ toolchain\ selection\ by:\c
\&
.br
\&\ \ ocamlfind\ -toolchain\ \c
.ft I
name\c
.ft B
\&\ ...\c
.ft R
.fi
.SH "THE 'query' SUBCOMMAND"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ query\ [\ -predicates\ \c
.ft I
p\c
.ft B
\&\ \ |\ \c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -format\ \c
.ft I
f\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -long-format\ |\ -l\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -i-format\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -l-format\ |\ \c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -a-format\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -o-format\ |\ \c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -p-format\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -prefix\ \c
.ft I
p\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -separator\ \c
.ft I
s\c
.ft B
\&\ |\ \c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -suffix\ \c
.ft I
s\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -pp\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -descendants\ |\ -d\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -recursive\ \ |\ -r\ ]\ \c
.ft I
package\c
.ft B
\&\ ...\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This command looks packages up, sorts them optionally, and\c
\&  
prints attributes of them. If the option -recursive (short: -r) is not\c
\&  
specified, exactly the packages given on the command line are looked\c
\&  
up; if -recursive is present, the packages and all their ancestors, or\c
\&  
if -descendants (short: -d) is present, too, all their descendants are printed.\c
.PP
.ft R
Package lookup and the selection of the attributes of the packages can\c
\&  
be modified by specifying predicates; without a -predicates option the\c
\&  
empty set of predicates is used. Note that even the lookup is\c
\&  
influenced by the set of actual predicates as the "requires" variables\c
\&  
may be conditional.\c
.PP
.ft R
What is printed about a package depends on the specified format; there\c
\&  
are a number of options that modify the format. Some formats denote\c
\&  
sets of values (such as -format %a), in which case multiple output\c
\&  
records are printed for every package. (It is even possible to specify\c
\&  
formats denoting the Cartesian product of sets, such as -format %a%o,\c
\&  
but this does not make sense.) Before the first output record the\c
\&  
prefix is printed, and the suffix after the last record. Between two\c
\&  
records the separator is printed.\c
.SS "Options"
.ft R
.ft R
.RS "2m"
.ft R
-predicates 
.ft I
p\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Sets the set of actual predicates. The argument\c
\&  
\&  
.ft I
p\c
.ft R
\& is a list of predicate names separated\c
\&  
\& by commas and/or whitespace. If multiple -predicates options are\c
\&  
\& given, the union of all specified sets is effectively used.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-format 
.ft I
f\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Sets the format to the string\c
\&  
\&  
.ft I
f\c
.ft R
\&. Characters preceded by a percent sign\c
\&  
\& are interpreted as placeholders; all other characters mean\c
\&  
\& themselves. The defined placeholders are listed below.\c
\&  
\& The default format is "%d".\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-long-format or -l\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Sets the format such that all relevant variables are printed.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-i-format\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Same as -format "-I %d", i.e. directory options for ocamlc are printed.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-l-format\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Same as -format "-ccopt -L%d", i.e. directory options for the\c
\&  
linker backend are printed.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-a-format\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Same as -format "%+a", i.e. archive file names are printed.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-o-format\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Same as -format "%o", i.e. linker options are printed.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-p-format\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Same as -format "%p", i.e. package names are printed.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-prefix 
.ft I
p\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Sets the prefix that is printed before the first output record\c
\&  
\& to the given string. The default prefix is the empty string.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-suffix 
.ft I
s\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Sets the suffix that is printed after the last output record\c
\&  
\& to the given string. The default suffix is the empty string.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-separator 
.ft I
s\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Sets the separator that is printed between output records to\c
\&  
\& the given string. The default separator is a linefeed character.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-recursive or -r\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Not only the packages given on the command line are queried\c
\&  
\& but also all ancestors or descendants. If the option -descendants is\c
\&  
\& specified, too, the descendants are printed, otherwise the\c
\&  
\& ancestors. The packages are topologically sorted.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-descendants -d\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Instead of the ancestors the descendants of the\c
\&  
\& given packages are queried. This option implies 
-recursive\c
\&.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-pp\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Query preprocessor packages (camlp4 syntax extensions). Normally\c
\&  
it is not needed to set -predicates, except you need the archives (then add\c
\&  
-predicates byte). This option implies 
-recursive\c
\&.\c
.RE
.ft R
.PP
.ft R
.SS "Placeholders meaningful in the -format option"
.ft R
.ft R
.RS "2m"
.ft R
%%\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by a single percent sign\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%p\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by the package name\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%d\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by the package directory\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%D\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by the package description\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%v\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by the version string\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%a\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by the archive filename. If there is more\c
\&  
\& than one archive, a separate output record is printed for every archive.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%+a\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Like %a, but the filenames are converted to absolute\c
\&  
\& paths ("+" and "@" notations are resolved)\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%A\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by the list of archive filenames.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%+A\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Like %A, but the filenames are converted to absolute\c
\&  
\& paths ("+" and "@" notations are resolved)\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%o\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by one linker option. If there is more than\c
\&  
\& one option, a separate output record is printed for every option.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%O\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by the list of linker options.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
%(\c
.ft I
property\c
.ft R
)\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Replaced by the value of the property named in parentheses,\c
\&  
or the empty string if not defined.\c
.RE
.ft R
.PP
.ft R
.SH "THE SUBCOMMANDS 'ocamlc', 'ocamlcp', 'ocamlopt', and 'ocamlmktop'"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ (\ ocamlc\ |\ ocamlcp\ |\ ocamlopt\ |\ ocamlmktop\ )\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ [\ -package\ \c
.ft I
package-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -linkpkg\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -predicates\ \c
.ft I
pred-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -dontlink\ \c
.ft I
package-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -syntax\ \c
.ft I
pred-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -ppopt\ \c
.ft I
camlp4-arg\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -ppxopt\ \c
.ft I
package\c
.ft B
,\c
.ft I
arg\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -dllpath-pkg\ \c
.ft I
package-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -dllpath-all\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -passopt\ \c
.ft I
arg\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -passrest\ \c
.ft I
arg...\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -only-show\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \c
.ft I
standard-option\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \c
.ft I
file\c
.ft B
\&\ ...\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
These subcommands are drivers for the compilers with the same names,\c
\&  
i.e. "ocamlfind ocamlc" is a driver for "ocamlc", and so on. The\c
\&  
subcommands understand all documented options of the compilers (here\c
\&  
called 
.ft I
standard-options\c
.ft R
), but also a few\c
\&  
more options. If these subcommands are invoked only with standard\c
\&  
options, they behave as if the underlying compiler had been called\c
\&  
directly. The extra options modify this.\c
.PP
.ft R
Internally, these subcommands transform the given list of options and\c
\&  
file arguments into an invocation of the driven compiler. This\c
\&  
transformation only adds options and files, and the relative order of\c
\&  
the options and files passed directly is unchanged.\c
.PP
.ft R
If there are -package options, additional directory search specifiers\c
\&  
will be included ("-I", and "-ccopt -I"), such that files of all named\c
\&  
packages and all ancestors can be found.\c
.PP
.ft R
The -linkpkg option causes that the packages listed in the -package\c
\&  
options and all necessary ancestors are linked in. This means that the\c
\&  
archive files implementing the packages are inserted into the list of\c
\&  
file arguments.\c
.PP
.ft R
As the package database is queried a set of predicates is needed. Most\c
\&  
predicates are set automatically, see below, but additional predicates\c
\&  
can be given by a -predicates option.\c
.PP
.ft R
If there is a 
-syntax\c
\& option, the drivers assume that\c
\&  
a preprocessor is to be used. In this case, the preprocessor command\c
\&  
is built first in a preprocessor stage, and this command is passed to the\c
\&  
compiler using the 
-pp\c
\& option. The set of predicates\c
\&  
in the preprocessor stage is different from the set in the compiler/linker\c
\&  
stage.\c
.SS "Options for compiling and linking"
.ft R
.ft R
Here, only the additional options not interpreted by the compiler but\c
\&  
by the driver itself, and options with additional effects are explained.\c
\&  
Some options are only meaningful for the preprocessor call, and are\c
\&  
explained below.\c
.PP
.ft R
.RS "2m"
.ft R
-package 
.ft I
package-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Adds the listed package names to the set of included\c
\&  
\& packages. The package names may be separated by commas and/or\c
\&  
\& whitespace. In the transformed command, for every package of the set\c
\&  
\& of included packages and for any ancestor a directory search option\c
\&  
\& is inserted after the already given options. This means that\c
\&  
\& "-I" and "-ccopt -I" options are added for every package directory.\c
\&  
\&  
.RE
.ft R
.sp
.RS "2m"
.ft R
-linkpkg\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Causes that in the transformed command all archives\c
\&  
\& of the packages specified by -packages and all their ancestors are\c
\&  
\& added to the file arguments. More precisely, these archives are\c
\&  
\& inserted before the first given file argument. Furthermore, "-ccopt\c
\&  
\& -L" options for all package directories, and the linker options of\c
\&  
\& the selected packages are added, too. Note that the archives are\c
\&  
\& inserted in topological order while the linker options are added in\c
\&  
\& reverse toplogical order.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-predicates 
.ft I
pred-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Adds the given predicates to the set of actual\c
\&  
\& predicates. The predicates must be separated by commas and/or\c
\&  
\& whitespace. 
.RE
.ft R
.sp
.RS "2m"
.ft R
-dontlink 
.ft I
package-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This option modifies the behaviour of\c
\&  
\& -linkpkg. Packages specified here and all ancestors are not linked\c
\&  
\& in. Again the packages are separated by commas and/or whitespace.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-dllpath-pkg 
.ft I
package-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
For these packages 
-dllpath\c
\& options\c
\&  
\& are added to the compiler command. This may be useful when the ld.conf\c
\&  
\& file is not properly configured.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-dllpath-all\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
For all linked packages 
-dllpath\c
\& options\c
\&  
\& are added to the compiler command. This may be useful when the ld.conf\c
\&  
\& file is not properly configured.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-passopt 
.ft I
arg\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The argument 
.ft I
arg\c
.ft R
\& is\c
\&  
\& passed directly to the underlying compiler. This is needed to\c
\&  
\& specify undocumented compiler options.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-passrest 
.ft I
arg...\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
All following arguments 
.ft I
arg...\c
.ft R
\& are\c
\&  
\& passed directly to the underlying compiler. This is needed to\c
\&  
\& specify undocumented compiler options.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-only-show\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Only prints the constructed command (ocamlc/ocamlopt) to\c
\&  
\& stdout, but does not execute the command. (This is for the unlikely event\c
\&  
\& that you need a wrapper around ocamlfind.)\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-verbose\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This standard option is interpreted by the driver, too.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-thread\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This standard option causes that the predicate "mt"\c
\&  
\& is added to the set of actual predicates. If POSIX threads are available,\c
\&  
\& the predicate "mt_posix" is selected, too. If only VM threads are\c
\&  
\& available, the predicate "mt_vm" is included into the set, and the\c
\&  
\& compiler switch is changed into -vmthread.\c
.PP
.ft R
Note that the presence of the "mt" predicate triggers special\c
\&  
fixup of the dependency graph (see below).\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-vmthread\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This standard option causes that the predicates "mt"\c
\&  
\& and "mt_vm" are added to the set of actual predicates.\c
.PP
.ft R
Note that the presence of the "mt" predicate triggers special\c
\&  
fixup of the dependency graph (see below).\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-p\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This standard option of "ocamlopt" causes that the\c
\&  
\& predicate "gprof" is added to the set of actual predicates.\c
.RE
.ft R
.PP
.ft R
.SS "Options for preprocessing"
.ft R
.ft R
The options relevant for the preprocessor are the following:\c
.PP
.ft R
.RS "2m"
.ft R
-package 
.ft I
package-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
These packages are considered while looking up the\c
\&  
\& preprocessor arguments. (It does not cause problems that the same\c
\&  
\& -package option is used for this purpose, because the set of predicates\c
\&  
\& is different.) It is recommended to mention at least 
camlp4\c
\&  
\& here if the preprocessor is going to be used.\c
\&  
\&  
.RE
.ft R
.sp
.RS "2m"
.ft R
-syntax 
.ft I
pred-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
These predicates are assumed to be true in addition\c
\&  
\& to the standard preprocessor predicates. See below for a list.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-ppopt 
.ft I
camlp4-arg\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This argument is passed to the camlp4 call.\c
\&  
\&  
.RE
.ft R
.PP
.ft R
.SS "Predicates for compiling and linking"
.ft R
.ft R
.RS "2m"
.ft R
byte\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The "byte" predicate means that one of the bytecode compilers is\c
\&  
used. It is automatically included into the predicate set if the\c
\&  
"ocamlc", "ocamlcp", or "ocamlmktop" compiler is used.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
native\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The "native" predicate means that the native compiler is used. It is\c
\&  
automatically included into the predicate set if the "ocamlopt"\c
\&  
compiler is used.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
toploop\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The "toploop" predicate means that the toploop is available in the\c
\&  
linked program. This predicate is only set when the toploop is actually\c
\&  
being executed, not when the toploop is created (this changed in version\c
\&  
1.0.4 of findlib).\c
.RE
.ft R
.sp
.RS "2m"
.ft R
create_toploop\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This predicate means that a toploop is being created (using\c
\&  
ocamlmktop).\c
.RE
.ft R
.sp
.RS "2m"
.ft R
mt\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The "mt" predicate means that the program is multi-threaded. It is\c
\&  
automatically included into the predicate set if the -thread option is\c
\&  
given. 
.RE
.ft R
.sp
.RS "2m"
.ft R
mt_posix\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The "mt_posix" predicate means that in the case "mt" is set, too, the\c
\&  
POSIX libraries are used to implement threads. "mt_posix" is automatically\c
\&  
included into the predicate set if the variable "type_of_threads" in the\c
\&  
META description of the "threads" package has the value "posix". This\c
\&  
is normally the case if "findlib" is configured for POSIX threads.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
mt_vm\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The "mt_vm" predicate means that in the case "mt" is set, too, the\c
\&  
VM thread emulation is used to implement multi-threading.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
gprof\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The "gprof" predicate means that in the case "native" is set, too, the\c
\&  
program is compiled for profiling. It is automatically included into\c
\&  
the predicate set if "ocamlopt" is used and the -p option is in\c
\&  
effect.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
autolink\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The "autolink" predicate means that ocamlc is able to perform automatic\c
\&  
linking. It is automatically included into the predicate set if ocamlc\c
\&  
knows automatic linking (from version 3.00), but it is not set if the\c
\&  
-noautolink option is set.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
syntax\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This predicate is set if there is a 
-syntax\c
\&  
\& option. It is set both for the preprocessor and the compiler/linker stage,\c
\&  
\& and it can be used to find out whether the preprocessor is enabled or not.\c
\&  
\&  
.RE
.ft R
.PP
.ft R
.SS "Predicates for preprocessing"
.ft R
.ft R
.RS "2m"
.ft R
preprocessor\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This predicate is always set while looking up the\c
\&  
\& preprocessor arguments. It can be used to distinguish between the\c
\&  
\& preprocessor stage and the compiler/linker stage.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
syntax\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This predicate is set if there is a 
-syntax\c
\&  
\& option. It is set both for the preprocessor and the compiler/linker stage,\c
\&  
\& and it can be used to find out whether the preprocessor is enabled or not.\c
\&  
\&  
.RE
.ft R
.sp
.RS "2m"
.ft R
camlp4o\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This is the reserved predicate for the standard O'Caml syntax.\c
\&  
\& It can be used in the 
-syntax\c
\& predicate list.\c
\&  
\&  
.RE
.ft R
.sp
.RS "2m"
.ft R
camlp4r\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
This is the reserved predicate for the revised O'Caml syntax.\c
\&  
\& It can be used in the 
-syntax\c
\& predicate list.\c
\&  
\&  
.RE
.ft R
.PP
.ft R
.SS "Special behaviour of 'ocamlmktop'"
.ft R
.ft R
As there is a special module 
Topfind\c
\& that\c
\&  
supports loading of packages in scripts, the "ocamlmktop" subcommand\c
\&  
can add initialization code for this module. This extra code is\c
\&  
linked into the executable if "findlib" is in the set of effectively\c
\&  
linked packages. 
.SS "Fixup of the dependency graph for multi-threading"
.ft R
.ft R
For a number of reasons the presence of the "mt" predicate triggers\c
\&  
that (1) the package "threads" is added to the list of required packages\c
\&  
and (2) the package "threads" becomes prerequisite of all other packages\c
\&  
(except of itself and a few hardcoded exceptions). The effect is that\c
\&  
the options -thread and -vmthread automatically select the "threads"\c
\&  
package, and that "threads" is inserted at the right position in the\c
\&  
package list.\c
.SS "Extended file naming"
.ft R
.ft R
At a number of places one can not only refer to files by absolute\c
\&  
or relative path names, but also by extended names. These have two\c
\&  
major forms: "+\c
.ft I
name\c
.ft R
"\c
\&  
refers to the subdirectory 
.ft I
name\c
.ft R
\& of the\c
\&  
standard library directory, and "@\c
.ft I
name\c
.ft R
"\c
\&  
refers to the package directory of the package 
.ft I
name\c
.ft R
\&.\c
\&  
Both forms can be continued by a path, e.g. "@netstring/netstring_top.cma".\c
.PP
.ft R
You can use extended names: (1) With 
-I\c
\& options,\c
\&  
(2) as normal file arguments of the compiler, (3) in the 
\&  
"archive" property of packages.\c
.SS "How to set the names of the compiler executables"
.ft R
.ft R
Normally, the O'Caml bytecode compiler can be called under the name\c
\&  
ocamlc\c
\&. However, this is not always true; sometimes a\c
\&  
different name is chosen.\c
.PP
.ft R
You can instruct ocamlfind to call executables with other names than\c
\&  
ocamlc\c
, 
ocamlopt\c
,\c
\&  
ocamlmktop\c
, and 
ocamlcp\c
\&. If present,\c
\&  
the environment variable 
OCAMLFIND_COMMANDS\c
\& is interpreted\c
\&  
as a mapping from the standard names to the actual names of the executables. It\c
\&  
must have the following format:\c
\&  
\&  
.PP
.ft R
.ft B
.nf
.ft I
standardname1\c
.ft B
=\c
.ft I
actualname1\c
.ft B
\&\ \c
.ft I
standardname2\c
.ft B
=\c
.ft I
actualname2\c
.ft B
\&\ ...\c
.ft R
.fi
.PP
.ft R
Example: You may set 
OCAMLFIND_COMMANDS\c
\& as follows:\c
\&  
\&  
.PP
.ft R
.ft B
.nf
OCAMLFIND_COMMANDS='ocamlc=ocamlc-3.00\ ocamlopt=ocamlopt-3.00'\c
\&
.br
export\ OCAMLFIND_COMMANDS\c
.ft R
.fi
.PP
.ft R
Alternatively, you can change the configuration file\c
\&  
findlib.conf\c
\&.\c
.SH "THE SUBCOMMAND 'ocamlmklib'"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ ocamlmklib\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ [\ -package\ \c
.ft I
package-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -predicates\ \c
.ft I
pred-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -dllpath-pkg\ \c
.ft I
package-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -dllpath-all\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -passopt\ \c
.ft I
arg\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -passrest\ \c
.ft I
arg...\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \c
.ft I
standard-option\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \c
.ft I
file\c
.ft B
\&\ ...\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This is a wrapper around ocamlmklib, and creates library archives and\c
\&  
DLLs. In addition to the standard options, one can use -package to\c
\&  
add the search path of packages. Note that no predicates are set by default -\c
\&  
the wrapper does not know whether this is about byte or native code linking.\c
.PP
.ft R
This wrapper is mostly provided for completeness.\c
.SH "THE 'ocamldep' SUBCOMMAND"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ ocamldep\ [-package\ \c
.ft I
package-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -syntax\ \c
.ft I
pred-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -ppopt\ \c
.ft I
camlp4-arg\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -passopt\ \c
.ft I
arg\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -passrest\ \c
.ft I
arg...\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -verbose\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \c
.ft I
standard-option\c
.ft B
]\ \c
.ft I
file\c
.ft B
\&\ ...\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This command is a driver for the tool 
ocamldep\c
\& of the\c
\&  
O'Caml distribution. This driver is only useful in conjunction with\c
\&  
the preprocessor camlp4; otherwise it does not provide more functions\c
\&  
than 
ocamldep\c
\& itself.\c
.SS "Options"
.ft R
.ft R
Here, only the additional options not interpreted by 
ocamldep\c
\&  
but\c
\&  
by the driver itself, and options with additional effects are explained.\c
.PP
.ft R
.RS "2m"
.ft R
-package 
.ft I
package-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The packages named here are only used to look up the\c
\&  
preprocessor options. The package 
camlp4\c
\& should be\c
\&  
specified anyway, but further packages that add capabilities to the\c
\&  
preprocessor can also be passed.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-syntax 
.ft I
pred-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The predicates that are in effect during the look-up\c
\&  
of the preprocessor options. At least, either 
camlp4o\c
\&  
(selecting the normal syntax), or 
camlp4r\c
\& (selecting\c
\&  
the revised syntax) should be specified.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-ppopt 
.ft I
camlp4-arg\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
An option that is passed through to the camlp4 call.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-passopt 
.ft I
arg\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
An option that is passed through to the ocamldep call.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-passrest 
.ft I
arg...\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
All further arguments are passed down to ocamldep\c
\&  
\& unprocessed\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-verbose\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Displays the resulting ocamldep command (for debugging)\c
.RE
.ft R
.PP
.ft R
.SS "Example"
.ft R
.ft R
A typical way of using this driver:\c
\&  
\&  
.PP
.ft R
.ft B
.nf
ocamlfind\ ocamldep\ -package\ camlp4,xstrp4\ -syntax\ camlp4r\ file1.ml\ file2.ml\c
.ft R
.fi
\&  
\&  
This command outputs the dependencies of 
file1.ml\c
\& and\c
\&  
file2.ml\c
, although these modules make use of the\c
\&  
syntax extensions provided by 
xstrp4\c
\& and are written\c
\&  
in revised syntax.\c
.SH "THE 'ocamlbrowser' SUBCOMMAND"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ ocamlbrowser\ [-package\ \c
.ft I
package-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -all\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -passopt\ \c
.ft I
arg\c
.ft B
\&\ \c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ -passrest\ ]\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This driver calls the 
ocamlbrowser\c
\& with package options.\c
\&  
With 
-package\c
, the specified packages are included into\c
\&  
the search path of the browser, and the modules of these packages become\c
\&  
visible (in addition to the standard library). The option 
-all\c
\& causes that all packages are selected that are managed by findlib.\c
.PP
.ft R
As for other drivers, the options 
-passopt\c
\& and\c
\&  
-passrest\c
\& can be used\c
\&  
to pass arguments directly to the 
ocamlbrowser\c
\& program.\c
.SH "THE SUBCOMMAND 'ocamldoc'"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ ocamldoc\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ [\ -package\ \c
.ft I
package-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -predicates\ \c
.ft I
pred-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -syntax\ \c
.ft I
pred-name-list\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ -ppopt\ \c
.ft I
camlp4-arg\c
.ft B
\&\ |\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \c
.ft I
standard-option\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \c
.ft I
file\c
.ft B
\&\ ...\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This subcommand is a driver for ocamldoc. It undestands all options\c
\&  
ocamldoc supports plus the mentioned findlib options. Basically,\c
\&  
the -package options are translated into -I options, and the selected\c
\&  
syntax options are translated into camlp4 options.\c
.SS "Options"
.ft R
.ft R
Here, only the additional options not interpreted by 
ocamldep\c
\&  
but\c
\&  
by the driver itself, and options with additional effects are explained.\c
.PP
.ft R
.RS "2m"
.ft R
-package 
.ft I
package-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Adds the listed package names to the set of included\c
\&  
\& packages. The package names may be separated by commas and/or\c
\&  
\& whitespace. In the transformed command, for every package of the set\c
\&  
\& of included packages and for any ancestor a directory search option\c
\&  
\& is inserted after the already given options. This means that\c
\&  
\& "-I" options are added for every package directory.\c
\&  
\&  
.RE
.ft R
.sp
.RS "2m"
.ft R
-predicates 
.ft I
pred-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Adds the given predicates to the set of actual\c
\&  
\& predicates. The predicates must be separated by commas and/or\c
\&  
\& whitespace. 
.RE
.ft R
.sp
.RS "2m"
.ft R
-syntax 
.ft I
pred-name-list\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
The predicates that are in effect during the look-up\c
\&  
of the preprocessor options. At least, either 
camlp4o\c
\&  
(selecting the normal syntax), or 
camlp4r\c
\& (selecting\c
\&  
the revised syntax) should be specified.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
-ppopt 
.ft I
camlp4-arg\c
.ft R
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
An option that is passed through to the camlp4 call.\c
.RE
.ft R
.PP
.ft R
.SH "THE 'install' SUBCOMMAND"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ install\ [\ -destdir\ \c
.ft I
directory\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -metadir\ \c
.ft I
directory\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -ldconf\ \c
.ft I
path\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -dont-add-directory-directive\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -patch-version\ \c
.ft I
string\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -patch-rmpkg\ \c
.ft I
name\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -patch-archives\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -dll\ ]\ [\ -nodll\ ]\ [\ -optional\ ]\ [\ -add\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \c
.ft I
package_name\c
.ft B
\&\ \c
.ft I
file\c
.ft B
\&\ ...\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This subcommand installs a new package either at the default location\c
\&  
(see the variable 
destdir\c
\& of\c
\&  
findlib.conf\c
), or in the directory\c
\&  
specified by the -destdir option. This\c
\&  
means that a new package directory is created and that the files on\c
\&  
the command line are copied to this directory. It is required that a\c
\&  
META\c
\& file is one of the files copied to the target\c
\&  
directory.\c
.PP
.ft R
Note that package directories should be flat (no\c
\&  
subdirectories). Existing packages are never overwritten.\c
.PP
.ft R
It is possible to have a separate directory for all the META files. If\c
\&  
you want that, you have either to set the variable\c
\&  
metadir\c
\& of 
\&  
findlib.conf\c
, or to specify the\c
\&  
-metadir option. In this case, the file called META is copied to the\c
\&  
specified directory and renamed to META.p (where p is the package\c
\&  
name), while all the other files are copied to the package\c
\&  
directory as usual. Furthermore, the META file is modified such that the\c
\&  
directory\c
\& variable contains the path of the package\c
\&  
directory. 
.PP
.ft R
The option -dont-add-directory-directive prevents the installer from\c
\&  
adding a 
directory\c
\& variable.\c
.PP
.ft R
If there are files ending in the suffixes 
\&.so\c
\& or\c
\&  
\&.dll\c
, the package directory will be added to the\c
\&  
DLL configuration file 
ld.conf\c
, such that the dynamic\c
\&  
loader can find the DLL. The location of this file can be overriden by\c
\&  
the -ldconf option. To turn this feature off, use "-ldconf ignore";\c
\&  
this causes that the ld.conf file is not modified.\c
.PP
.ft R
However, if there is a stublibs directory in site-lib, the DLLs are not\c
\&  
installed in the package directory, but in this directory that is\c
\&  
shared by all packages that are installed at the same location.\c
\&  
In this case, the configuration file 
ld.conf\c
\& is\c
\&  
not modified, so you do not need to say "-ldconf ignore" if you\c
\&  
prefer this style of installation.\c
.PP
.ft R
The options -dll and -nodll can be used to control exactly which files\c
\&  
are considered as DLLs and which not. By default, the mentioned\c
\&  
suffix rule is in effect: files ending in ".so" (Unix) or ".dll"\c
\&  
(Windows) are DLLs. The switch -dll changes this, and all following\c
\&  
files are considered as DLLs, regardless of their suffix. The switch 
\&  
-nodll expresses that the following files are not DLLs, even if they\c
\&  
have a DLL-like suffix. For example, in the following call the files\c
\&  
f1 and f2 are handled by the suffix rule; f3 and f4 are DLLs anyway;\c
\&  
and f5 and f6 are not DLLs:\c
\&  
\&  
.PP
.ft R
.ft B
.nf
ocamlfind\ install\ p\ f1\ f2\ -dll\ f3\ f4\ -nodll\ f5\ f6\c
.ft R
.fi
.PP
.ft R
The switch -optional declares that all following files are optional,\c
\&  
i.e. the command will not fail if files do not exist.\c
.PP
.ft R
The -patch options may be used to change the contents of the META files\c
\&  
while it is being installed. The option -patch-version changes the\c
\&  
contents of the top-level "version" variable. The option -patch-rmpkg\c
\&  
removes the given subpackage. The option -patch-archives is experimental,\c
\&  
in particular it removes all non-existing files from "archive" variables,\c
\&  
and even whole subpackages if the archives are missing.\c
.PP
.ft R
The effect of -add is to add further files to an already installed\c
\&  
packages.\c
.SH "THE 'remove' SUBCOMMAND"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ remove\ [\ -destdir\ \c
.ft I
directory\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -metadir\ \c
.ft I
directory\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\ -ldconf\ \c
.ft I
path\c
.ft B
\&\ ]\c
\&
.br
\&\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \c
.ft I
package_name\c
.ft B
.ft R
.fi
.SS "Description"
.ft R
.ft R
The package will removed if it is installed at the default location 
\&  
(see the variable 
destdir\c
\& of\c
\&  
findlib.conf\c
). If the package\c
\&  
resides at a different location, it will not be removed by default;\c
\&  
however, you can pass an alternate directory for packages by the\c
\&  
-destdir option. (This must be the same directory as specified at\c
\&  
installation time.)\c
.PP
.ft R
Note that package directories should be flat (no subdirectories); this\c
\&  
subcommand cannot remove deep package directories. 
.PP
.ft R
If you have a separate directory for META files, you must either\c
\&  
configure this directory by the 
metadir\c
\& variable\c
\&  
of 
findlib.conf\c
, or by specifying\c
\&  
the -metadir option.\c
.PP
.ft R
The command does not fail if the package and/or the META\c
\&  
file cannot be located. You will get a warning only in this case.\c
.PP
.ft R
If the package directory is mentioned in the 
ld.conf\c
\&  
configuration file for DLLs, it will be tried to remove this entry\c
\&  
from the file. The location of this file can be overriden by\c
\&  
the -ldconf option. To turn this feature off, use "-ldconf ignore";\c
\&  
this causes that the ld.conf file is not modified.\c
.PP
.ft R
If there is a stublibs directory, it is checked whether the package\c
\&  
owns any of the files in this directory, and the owned files will\c
\&  
be deleted.\c
.SH "THE 'list' SUBCOMMAND"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ list\ [-describe]\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This command lists all packages in the search path. The option -describe\c
\&  
outputs the package descriptions, too.\c
.SH "THE 'printconf' SUBCOMMAND"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ printconf\ [\ conf\ |\ path\ |\ destdir\ |\ metadir\ |\ stdlib\ |\ ldconf\ ]\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This command prints the effective configuration after reading the\c
\&  
configuration file, and after applying the various environment\c
\&  
variables overriding settings. When called without arguments, the command\c
\&  
prints all configuration options in a human-readable form. When called\c
\&  
with an argument, only the value of the requested option is printed without\c
\&  
explaining texts:\c
.PP
.ft R
.RS "2m"
.ft R
conf\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Prints the location of the configuration file findlib.conf\c
\&  
\&  
.RE
.ft R
.sp
.RS "2m"
.ft R
path\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Prints the search path for packages. The members of the\c
\&  
\& path are separated by linefeeds.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
destdir\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Prints the location where package are installed and\c
\&  
\& removed by default.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
metadir\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Prints the location where META files are installed and\c
\&  
\& removed (if the alternative layout is used).\c
.RE
.ft R
.sp
.RS "2m"
.ft R
stdlib\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Prints the location of the standard library.\c
.RE
.ft R
.sp
.RS "2m"
.ft R
ldconf\c
.RE
.ft R
.sp
.RS "7m"
.ft R
.ft R
Prints the location of the ld.conf file\c
.RE
.ft R
.PP
.ft R
.SH "THE SUBCOMMAND CALLING PACKAGE PROGRAMS"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ \c
.ft I
pkg\c
.ft B
/\c
.ft I
cmd\c
.ft B
\&\ \c
.ft I
argument\c
.ft B
\&\ ...\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
This subcommand is useful to call programs that are installed in\c
\&  
package directories. It looks up the directory for 
\&  
.ft I
pkg\c
.ft R
\& and calls the command named\c
\&  
.ft I
cmd\c
.ft R
\& in this directory. The remaining arguments\c
\&  
are passed to this command.\c
.PP
.ft R
argv(0) contains the absolute path to the command, and argv(1) and\c
\&  
the following argv entries contain the arguments. The working directory\c
\&  
is not changed.\c
.PP
.ft R
Example: To call the program "x" that is installed in package "p",\c
\&  
with arguments "y" and "z", run:\c
.PP
.ft R
.ft B
.nf
ocamlfind\ p/x\ y\ z\c
.ft R
.fi
.SH "CONFIGURATION FILE, ENVIRONMENT VARIABLES"
.ft R
.ft R
The configuration file and environment variables are documented\c
\&  
in the manual page for\c
\&  
\&  
findlib.conf\c
\&.\c
.SH "HOW TO SET THE TOOLCHAIN"
.ft R
.SS "Synopsis"
.ft R
.ft R
.ft B
.nf
ocamlfind\ -toolchain\ \c
.ft I
name\c
.ft B
\&\ ...\c
.ft R
.fi
.SS "Description"
.ft R
.ft R
The -toolchain option can be given before any other command,\c
\&  
e.g.\c
\&  
.PP
.ft R
.ft B
.nf
ocamlfind\ -toolchain\ foo\ ocamlc\ -c\ file.ml\c
.ft R
.fi
\&  
compiles file.ml with toolchain "foo". By selecting toolchains one\c
\&  
can switch to different command sets. For instance, the toolchain\c
\&  
"foo" may consist of a patched ocamlc compiler. 
\&  
See 
findlib.conf\c
\& how to\c
\&  
configure toolchains.\c