#! /bin/sh
# $Id$
# ----------------------------------------------------------------------
#
# Some functions
#set -x
version="$(sed -ne 's/^version: *"\(.*\)\.git".*/\1/p' opam)"
if test -z "$version"; then
echo "Internal error: failed to parse version number from opam file" 1>&2
exit 1
fi
# Remember the old IFS value:
oldifs="$IFS"
in_path () {
# Does $1 exist in $PATH?
IFS=":"
for d in $PATH; do
if test -x "$d/$1"; then
IFS="$oldifs"
return 0
fi
done
IFS="$oldifs"
return 1
#--- The following is not portable enough:
# if test -x `type -p ls`; then
# # type -p works!
# type -p $1 >/dev/null
# else
# # use 'which' instead
# p=`which $1`
# test -x "$p"
# fi
}
get_path () {
IFS=":"
for d in $PATH; do
if test -x "$d/$1"; then
IFS="$oldifs"
echo "$d/$1"
return
fi
done
IFS="$oldifs"
#--- The following is not portable enough:
# if test -x `type -p ls`; then
# # type -p works!
# type -p $1
# else
# # use 'which' instead
# p=`which $1`
# test -x "$p" && echo $p
# fi
}
get_stdlib () {
# Older versions of ocamlc do not accept -where, so there is a fallback
# method:
ocamlc -where 2>/dev/null | tr -d '\r' || {
ocamlc -v | sed -n -e "/Standard library directory/s/.*: \(.*\)/\1/p"; }
}
get_lib () {
# $1: name of a library to search for
# $2...: places to test
libname="$1"
while [ "$#" != "0" ]; do
if [ -f "$1/lib${libname}.so" ] || [ -f "$1/lib${libname}.a" ]; then
echo "$1"
return 0
fi
shift
done
return 1
}
get_lib_file () {
# $1: name of library without "lib" and suffix
# $2: directory
# returns full path of library
if [ -f "$2/lib$1.so" ]; then
echo "$2/lib$1.so"
elif [ -f "$2/lib$1.a" ]; then
echo "$2/lib$1.a"
else
echo ""
fi
}
cygpath_to_unix () {
v=$1
eval "p=\"\$$v\""
p="$(cygpath -w -s "$p")"
p="$(cygpath -u "$p")"
eval "$v=\"$p\""
}
######################################################################
# Here the main program begins:
######################################################################
# Interpret the command line
ocamlfind_bin=""
ocamlfind_man=""
ocaml_sitelib=""
ocamlfind_config=""
with_toolbox=0
with_topfind=1
with_camlp4=1
with_relative_paths=0
custom=-custom
system=""
sh=""
while [ "$#" != "0" ]; do
case "$1" in
-bindir) ocamlfind_bin=$2
shift 2
;;
-mandir) ocamlfind_man=$2
shift 2
;;
-sitelib) ocaml_sitelib=$2
shift 2
;;
-config) ocamlfind_config=$2
with_relative_paths=0
shift 2
;;
-no-custom) custom=
shift
;;
-cygpath) system=mingw
shift
;;
-system) system=$2
shift 2
;;
-with-toolbox) with_toolbox=1
shift
;;
-with-relative-paths-at) with_relative_paths=1
ocaml_prefix=$2
shift 2
;;
-no-topfind) with_topfind=0
shift
;;
-no-camlp4) with_camlp4=0
shift
;;
-version)
echo "$version"
exit 0
;;
-h|-help|--help) echo "usage: configure [options]" 1>&2
echo " -bindir path where binaries are installed" 1>&2
echo " -mandir path where manual pages are installed" 1>&2
echo " -sitelib path set the location of the site-specific packages" 1>&2
echo " -config path set the location of the configuration file" 1>&2
echo " -no-custom don't link in custom runtime mode" 1>&2
echo " -system <systype> override system type (esp. mingw and win32)" 1>&2
echo " -with-toolbox also build the toolbox" 1>&2
echo " -with-relative-paths-at path load configuration relative to the installation path" 1>&2
echo " -no-topfind don't install topfind script into stdlib directory" 1>&2
echo " -no-camlp4 don't install the camlp4 META file" 1>&2
exit
;;
*) echo "configure: run 'configure -h' to get help" 1>&2
exit 1
;;
esac
done
echo "Welcome to findlib version $version"
echo "Configuring core..."
#######################################################################
# inspect the system
# Some standard Unix tools must be available:
for tool in sed ocaml ocamlc uname rm make cat dirname basename; do
if in_path $tool; then true; else
echo "configure: $tool not in PATH; this is required" 1>&2
exit 1
fi
done
lib_suffix=$(ocamlc -config 2>/dev/null | tr -d '\r' | sed -n -e 's/^ext_lib: //p')
# Check for Cygwin:
exec_suffix=
pure_mingw="no"
mingw_lib=
case $(uname) in
CYGWIN*)
exec_suffix=.exe
echo "Cygwin build environment found; using .exe as suffix for binaries"
;;
MSYS_NT*)
exec_suffix=.exe
echo "MSYS_NT build environment found; using .exe as suffix for binaries"
;;
MINGW*)
exec_suffix=.exe
pure_mingw="yes"
echo "MinGW build environment found; using .exe as suffix for binaries"
mingw_lib=$(get_path gcc)
mingw_lib=$(dirname "$mingw_lib")/../lib
;;
*)
true ;;
esac
######################################################################
# Is the target Win32?
use_cygpath=0
# Whether we have to translate Unix paths to/from Windows paths.
if [ -z "$system" ]; then
system=$(ocamlc -config 2>/dev/null | tr -d '\r' | sed -n -e 's/^system: //p')
# This may be
# - mingw or mingw64
# - win32
# - win64
# - cygwin
# - some other string means Unix
# - empty means ocamlc does not support -config
fi
path_sep=':'
case "$system" in
mingw|mingw64)
if [ "$pure_mingw" = "no" ]; then
# CYGWIN
use_cygpath=1
fi
;;
win32) use_cygpath=1;;
win64) use_cygpath=1;;
# A quirk of history means OCAMLPATH uses ; on Cygwin
cygwin) path_sep=';';;
esac
######################################################################
# check for presence of /bin/sh
if [ ! -f /bin/sh ]; then
sh="sh"
fi
######################################################################
# Find out standard library location
ocaml_core_stdlib=$(get_stdlib)
ocaml_major="$(ocamlc -vnum 2>/dev/null | cut -f1 -d.)"
if [ ! -d "$ocaml_core_stdlib" ]; then
echo "configure: cannot determine ocaml's standard library directory" 1>&2
exit 1
fi
if [ -z "$ocaml_major" ]; then ocaml_major=3; fi
if [ ${use_cygpath} -gt 0 ]; then
cygpath_to_unix ocaml_core_stdlib
# This makes ocaml_core_stdlib a Unix-type path
fi
# Set site-lib directory:
if [ -z "$ocaml_sitelib" ]; then
case "$ocaml_core_stdlib" in
/opt/*) ocaml_sitelib=$(dirname "${ocaml_core_stdlib}")/site-lib
;;
*) ocaml_sitelib="${ocaml_core_stdlib}/site-lib"
;;
esac
fi
ocamlpath="${ocaml_sitelib}"
if [ ${use_cygpath} -gt 0 ]; then
cygpath_to_unix ocamlpath
fi
if [ "$ocaml_major" -ge 5 ]; then
# OCaml 5.0+ installs its own META files under the stdlib directory.
# If findlib has been configured -sitelib $(ocamlc -where) then there's
# nothing to do, but otherwise we need to put OCaml's Standard Library
# into the path setting.
if [ ! -e "${ocaml_sitelib}/stdlib.cmi" ]; then
ocamlpath="${ocaml_core_stdlib}${path_sep}${ocamlpath}"
fi
fi
# Find out the directory where ocamlc is:
ocamlc=$(get_path ocamlc)
ocaml_core_bin=$(dirname "${ocamlc}")
# Set the directory of ocamlfind:
test -n "$ocamlfind_bin" || ocamlfind_bin="$ocaml_core_bin"
# Find the directory for the manual:
# Fallback:
ocaml_core_man=/usr/local/man
d="$ocaml_core_bin"
while [ "$d" != '/' ]; do
f=0
if [ -d "$d/man/man1" ]; then
if [ -f "$d/man/man1/ocamlc.1" ] ||
[ -f "$d/man/man1/ocamlc.1.gz" ] ||
[ -f "$d/man/man1/ocamlc.1.Z" ]; then
f=1
fi
else
if [ -d "$d/man/mann" ]; then
if [ -f "$d/man/mann/ocamlc.n" ] ||
[ -f "$d/man/mann/ocamlc.n.gz" ] ||
[ -f "$d/man/mann/ocamlc.n.Z" ]; then
f=1
fi
fi
fi
if [ "$f" = "1" ]; then
ocaml_core_man="$d/man"
d="/"
else
d=$(dirname "$d")
fi
done
# Set the directory for ocamlfind's manuals:
test -n "$ocamlfind_man" || ocamlfind_man="$ocaml_core_man"
# Guess the right directory for the configuration file:
if [ -z "${ocamlfind_config}" ]; then
d="$ocaml_core_bin"
case "$d" in
*/bin)
if [ -f "$(dirname "$d")/lib/findlib.conf" ]; then
ocamlfind_config="$(dirname "$d")/lib/findlib.conf"
else
ocamlfind_config="$(dirname "$d")/etc/findlib.conf"
fi
;;
*)
ocamlfind_config=/usr/local/etc/findlib.conf
# Fallback value
;;
esac
fi
######################################################################
# do we have #remove_directory?
echo "Checking for #remove_directory..."
have_remdir=1
ocaml itest-aux/remdir.ml >/dev/null 2>/dev/null || have_remdir=0
######################################################################
# Test the threading model
echo "Testing threading model..."
if ocamlc -vmthread >/dev/null 2>/dev/null; then
ocaml_threads="vm"
else
ocaml_threads="none"
fi
if ocamlc -config >/dev/null 2>/dev/null; then
# Good. ocamlc tells us the threading model.
if ocamlc -config | grep 'systhread_supported: true'; then
ocaml_threads="posix"
fi
else
# Old ocamlc do not have -config.
rm -f itest-aux/simple
ocamlc -w a -custom -thread -o itest-aux/simple -I +unix unix.cma threads.cma itest-aux/simple_threads.ml \
>itest-aux/err.out 2>&1
output=$(cat itest-aux/err.out)
if [ -z "$output" ]; then
ocaml_threads="posix"
fi
fi
######################################################################
# Does this version of OCaml support autolinking?
# Works for OCaml >= 3.00 on. Because findlib can only be compiled
# with these OCaml versions, we can safely assume that autolinking
# is enabled.
ocaml_autolink="true"
######################################################################
# Does this version of OCaml support DLLs?
echo "Testing DLLs..."
have_dlls="yes"
ocaml -I +unix unix.cma itest-aux/simple.ml >/dev/null || have_dlls="no"
######################################################################
# Does this version of OCaml support extension points?
echo "Testing whether ppxopt can be supported..."
with_ppxopt=1
enable_topfind_ppxopt=true
ocaml -I +compiler-libs itest-aux/ppx.ml >/dev/null || {
with_ppxopt=0
enable_topfind_ppxopt=false
}
######################################################################
# Check for -opaque
echo "Checking for ocamlc -opaque..."
opaque="-opaque"
ocamlc -opaque -version >/dev/null 2>/dev/null || opaque=""
######################################################################
# Check for ocamlopt -g
echo "Checking for ocamlopt -g..."
native_debugging_info="-g"
ocamlopt -g -version >/dev/null 2>/dev/null || native_debugging_info=""
######################################################################
# Configure libraries
check_before_install=0
findlib_installed_meta=''
if [ -d "${ocaml_sitelib}" ] && [ "${ocaml_major}" -lt 5 ]; then
previous_config="${ocaml_sitelib}/findlib/Makefile.packages"
if [ -f "${previous_config}" ]; then
echo "Querying installation: found list of findlib-generated META files"
eval "$(sed -ne 's/ /,/g' -e 's/^SITELIB_META,*=,*\([^,].*[^,]\),*/findlib_installed_meta="\1"/p' "$previous_config")"
echo "Installation has: $findlib_installed_meta"
else
previous_config=''
check_before_install=1
echo "Querying installation: META list not found"
echo "make install will double-check installed META files"
fi
else
previous_config=''
fi
echo "Configuring libraries..."
# Only succeeds if ${ocaml_sitelib}/$1/META exists and we're **certain**
# it wasn't installed by a previous findlib installation.
is_third_party_META () {
if [ $check_before_install -eq 0 ]; then
if [ -f "${ocaml_sitelib}/$1/META" ]; then
case ",$findlib_installed_meta," in
*,$1,*)
return 1;;
*)
return 0;;
esac
else
return 1
fi
else
return 1
fi
}
check_library () {
if is_third_party_META "$1"; then
echo "$1: package already present"
# Library is present - exit code is 0 because the library is found
# (e.g. detection for Unix) but we don't actually add it to the
# generated_META list.
return 0
fi
if [ -z "$3" ]; then
check_library "$1" "$2" "$1.cmi"
return $?
fi
package="$1"
if [ -z "$2" ]; then
msg=''
else
msg=" ($2)"
fi
shift 2
for file; do
if [ -e "${ocaml_core_stdlib}/${file}" ]; then
package_dir="$(dirname "${file}")"
if [ "${package_dir}" = '.' ]; then
echo "${package}: found"
package_subdir='.'
package_dir='^'
else
package_subdir="${package_dir}"
package_dir="+${package_dir}"
echo "${package}: found (in ${package_dir})"
fi
package_key="$(echo "${package}" | tr - _)"
eval "${package_key}_dir=\"${package_dir}\""
eval "${package_key}_subdir=\"${package_subdir}\""
if [ "${ocaml_major}" -ge 5 ]; then
return 0
fi
if [ "$package" = 'num' ]; then
generated_META="${generated_META} num num-top"
numtop='num-top'
else
generated_META="${generated_META} ${package}"
fi
return 0
fi
done
echo "$package: not present${msg}"
return 1
}
if [ "${ocaml_major}" -ge 5 ]; then
generated_META=''
else
generated_META='stdlib'
fi
numtop=''
if ! check_library unix 'possible since 4.08' unix/unix.cmi unix.cmi; then
echo "configure: ocamlfind requires OCaml's Unix library" 1>&2
exit 1
fi
check_library dynlink '' dynlink/dynlink.cmi dynlink.cmi
check_library bigarray 'possible since 4.08'
check_library compiler-libs '' 'compiler-libs'
check_library dbm 'normal since 4.00'
check_library graphics 'normal since 4.09'
check_library num 'normal since 4.06'
check_library ocamlbuild 'normal since 4.03' ocamlbuild/ocamlbuildlib.cma
check_library ocamldoc '' ocamldoc/odoc.cmi
check_library raw_spacetime 'normal since 4.12' raw_spacetime_lib.cmxa
check_library threads '' threads/thread.cmi vmthreads/thread.cmi;
# Need to know if str and labltk are available for the toolbox
if check_library str 'possible since 4.08' str/str.cmi str.cmi; then
have_str=1
else
have_str=0
fi
if check_library labltk 'normal since 4.02' labltk/labltk.cma; then
have_labltk=1
else
have_labltk=0
fi
# Dynlink check.
have_natdynlink=0
natdynlink=""
camlp4_dynlink=""
if [ -f "${ocaml_core_stdlib}/${dynlink_subdir:?}/dynlink.cmxa" ]; then
have_natdynlink=1
natdynlink="archive(native) = \"dynlink.cmxa\""
camlp4_dynlink="dynlink"
echo "native dynlink: found"
else
natdynlink="archive(native) = \"\""
echo "native dynlink: not found"
fi
# Check on camlp4:
if [ $with_camlp4 -eq 0 ]; then
echo "camlp4: disabled"
else
if in_path camlp4; then
if is_third_party_META camlp4; then
echo "camlp4: third-party"
fi
camlp4_dir=$(camlp4 -where | tr -d '\r')
if [ ${use_cygpath} -gt 0 ]; then
camlp4_dir=$(echo x | env USE_CYGPATH=1 tools/patch x "$camlp4_dir")
# This makes camlp4_dir a windows path
elif [ "${pure_mingw}" = "yes" ]; then
# Must double the backslahes
camlp4_dir="$(echo "${camlp4_dir}" | sed -e 's;\\;\\\\;g')"
fi
camlp4_version=$(camlp4 -v 2>&1)
if [ "$have_dlls" = "yes" ]; then
camlp4_cmd="camlp4"
else
camlp4_cmd="safe_camlp4"
fi
# Check whether 3.09 or 3.10 style:
if camlp4 -loaded-modules >/dev/null 2>/dev/null; then
camlp4style=310
else
camlp4style=309
fi
generated_META="${generated_META} camlp4"
rm -rf "site-lib-src/camlp4"
mkdir "site-lib-src/camlp4"
cp "site-lib-src/camlp4.$camlp4style/META.in" "site-lib-src/camlp4/"
echo "camlp4: using $camlp4_cmd, style $camlp4style"
else
with_camlp4=0
echo "camlp4: not present (normal since OCaml-4.02)"
fi
fi
# bytes?
# (NB. This is always ours, and it doesn't go into generated_META)
req_bytes=""
if [ -f "${ocaml_core_stdlib}/bytes.cmi" ] ||
[ -f "${ocaml_core_stdlib}/stdlib__bytes.cmi" ] ||
[ -f "${ocaml_core_stdlib}/stdlib__Bytes.cmi" ]; then
echo "bytes: found, installing fake library"
lbytes="bytes"
cbytes=0
else
echo "bytes: not found, installing compat library"
lbytes=""
req_bytes="bytes"
cbytes=1
fi
if [ $with_toolbox -gt 0 ]; then
if [ $have_str -eq 0 ] || [ $have_labltk -eq 0 ]; then
echo "Sorry, toolbox requires str and labltk - omitting toolbox."
with_toolbox=0
fi
fi
# Generate the META files now.
for dir in site-lib-src/*; do
# We do not really know if $dir is a directory.
rm -f "$dir"/META
done
for lib in $generated_META $lbytes; do
if=""
if [ -f site-lib-src/"$lib"/interfaces.out ]; then
if=$(cat site-lib-src/"$lib"/interfaces.out)
fi
sed \
-e "s|%%type_of_threads%%|${ocaml_threads}|g" \
-e "s|%%camlp4_dir%%|${camlp4_dir}|g" \
-e "s|%%camlp4_version%%|${camlp4_version}|g" \
-e "s|%%camlp4_cmd%%|${camlp4_cmd}|g" \
-e "s|%%camlp4_dynlink%%|${camlp4_dynlink}|g" \
-e "s|%%interfaces%%|${if}|g" \
-e "s|%%findlib_version%%|${version}|g" \
-e "s|%%natdynlink%%|${natdynlink}|g" \
-e "s|%%dynlink_dir%%|${dynlink_dir:?}|g" \
-e "s|%%unix_dir%%|${unix_dir:?}|g" \
-e "s|%%str_dir%%|${str_dir:?}|g" \
site-lib-src/"$lib"/META.in > site-lib-src/"$lib"/META
echo "Configuration for $lib written to site-lib-src/$lib/META"
done
# create META from META.in in POSIX-compatible & safe way
# see: https://www.shellcheck.net/wiki/SC2044
meta_subst="sed -e 's/@VERSION@/$version/g' \
-e 's/@REQUIRES@/${req_bytes}/g' \
\"\$1\" > \"\${1%.in}\""
find src -name 'META.in' -type f -exec sh -c "$meta_subst" sh {} \;
######################################################################
printf "Detecting compiler arguments: "
if make -C tools/extract_args >ocargs.log 2>&1; then
printf "(extractor built) "
# ocamlbrowser does not work!
if tools/extract_args/extract_args -o src/findlib/ocaml_args.ml ocamlc ocamlcp ocamloptp ocamlmklib ocamlmktop ocamlopt ocamldep ocamldoc >>ocargs.log 2>&1; then
echo "ok"
else
echo "FAILED (see the file ocargs.log for details)"
exit 1
fi
else
echo "FAILED (see the file ocargs.log for details)"
exit 1
fi
######################################################################
# Write Makefile.config
parts="findlib"
ocamlfind_ocamlflags="-I +unix -I +dynlink"
ocamlfind_archives="findlib.cma unix.cma"
if [ $with_toolbox -gt 0 ]; then
parts="$parts findlib-toolbox"
fi
if [ $cbytes -gt 0 ]; then
# bytes first, because findlib needs it
parts="bytes $parts"
ocamlfind_ocamlflags="${ocamlfind_ocamlflags} -I ../bytes"
ocamlfind_archives="bytes.cma ${ocamlfind_archives}"
fi
relative_site_lib=$(echo "${ocaml_sitelib}" | sed -e "s#^${ocaml_prefix}#\$PREFIX#")
if [ $with_relative_paths -gt 0 ]; then
# if configured with relative paths we add the relative path to the search path
relative_paths="true"
ocamlpath="${relative_site_lib}${path_sep}${ocamlpath}"
else
relative_paths="false"
fi
{
echo "# Makefile.config written by configure"
echo "OCAML_CORE_STDLIB=${ocaml_core_stdlib}"
echo "OCAML_CORE_BIN=${ocaml_core_bin}"
echo "OCAML_CORE_MAN=${ocaml_core_man}"
echo "OCAML_SITELIB=${ocaml_sitelib}"
echo "FINDLIB_PATH=${ocamlpath}"
echo "OCAML_THREADS=${ocaml_threads}"
echo "OCAMLFIND_BIN=${ocamlfind_bin}"
echo "OCAMLFIND_MAN=${ocamlfind_man}"
echo "OCAMLFIND_CONF=${ocamlfind_config}"
echo "OCAMLFIND_OCAMLFLAGS=${ocamlfind_ocamlflags}"
echo "OCAMLFIND_ARCHIVES=${ocamlfind_archives}"
echo "OCAML_AUTOLINK=${ocaml_autolink}"
echo "OCAML_REMOVE_DIRECTORY=${have_remdir}"
echo "EXEC_SUFFIX=${exec_suffix}"
echo "LIB_SUFFIX=${lib_suffix}"
echo "CUSTOM=${custom}"
echo "PARTS=${parts}"
echo "INSTALL_TOPFIND=${with_topfind}"
echo "RELATIVE_PATHS=${relative_paths}"
echo "RELATIVE_OCAML_SITELIB=${relative_site_lib}" | sed -e "s/\\\$/\$\$/"
echo "USE_CYGPATH=${use_cygpath}"
echo "HAVE_NATDYNLINK=${have_natdynlink}"
echo "VERSION=${version}"
echo "ENABLE_TOPFIND_PPXOPT=${enable_topfind_ppxopt}"
echo "SYSTEM=${system}"
echo "NUMTOP=${numtop}"
echo "SH=${sh}"
if [ "$mingw_lib" != "" ]; then
echo "OCAMLC_FLAGS=-I \"${mingw_lib}\""
echo "OCAMLOPT_FLAGS=-I \"${mingw_lib}\""
fi
echo "OPAQUE=${opaque}"
echo "OCAMLOPT_G=${native_debugging_info}"
echo "CHECK_BEFORE_INSTALL=${check_before_install}"
echo "CP = cp"
echo "INSTALLDIR = install -d"
echo "# change to INSTALLDIR = mkdir -p when BSD install is unavavailable"
echo "INSTALLFILE = install -c"
echo "# change to INSTALLFILE = cp when BSD install is unavailable"
} > Makefile.config
echo "SITELIB_META=${generated_META}" >Makefile.packages
# All OK
echo
echo "About the OCAML core installation:"
echo " Standard library: ${ocaml_core_stdlib}"
echo " Binaries: ${ocaml_core_bin}"
echo " Manual pages: ${ocaml_core_man}"
echo " Multi-threading type: ${ocaml_threads}"
echo "The directory of site-specific packages will be"
echo " site-lib: ${ocaml_sitelib}"
echo "The configuration file is written to:"
echo " findlib config file: ${ocamlfind_config}"
echo "Software will be installed:"
echo " Libraries: in <site-lib>/findlib"
echo " Binaries: ${ocamlfind_bin}"
echo " Manual pages: ${ocamlfind_man}"
if [ $with_topfind -gt 0 ]; then
echo " topfind script: ${ocaml_core_stdlib}"
else
echo " topfind script: omitted"
fi
if [ $with_ppxopt -gt 0 ]; then
echo "Topfind ppxopt support: yes"
else
echo "Topfind ppxopt support: no"
fi
if [ $with_toolbox -gt 0 ]; then
echo "Toolbox: yes"
else
echo "Toolbox: no"
fi
if [ -z "$custom" ]; then
echo "Link custom runtime: no"
else
echo "Link custom runtime: yes"
fi
if [ $cbytes -gt 0 ]; then
echo "Need bytes compatibility: yes"
else
echo "Need bytes compatibility: no"
fi
echo
echo "Configuration has been written to Makefile.config"
echo
echo "You can now do 'make all', and optionally 'make opt', to build ocamlfind."
