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configure
executable file
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/
configure
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#! /bin/sh
# configuration script
# This file is part of the Zarith library
# http://forge.ocamlcore.org/projects/zarith .
# It is distributed under LGPL 2 licensing, with static linking exception.
# See the LICENSE file included in the distribution.
#
# Copyright (c) 2010-2011 Antoine Miné, Abstraction project.
# Abstraction is part of the LIENS (Laboratoire d'Informatique de l'ENS),
# a joint laboratory by:
# CNRS (Centre national de la recherche scientifique, France),
# ENS (École normale supérieure, Paris, France),
# INRIA Rocquencourt (Institut national de recherche en informatique, France).
# options
installdir='auto'
ocamllibdir='auto'
host='auto'
gmp='auto'
perf='no'
ocaml='ocaml'
ocamlc='ocamlc'
ocamlopt='ocamlopt'
ocamlmklib='ocamlmklib'
ocamldep='ocamldep'
ocamldoc='ocamldoc'
ccinc="$CPPFLAGS"
cclib="$LDFLAGS"
ccdef=''
mlflags="$OCAMLFLAGS"
mloptflags="$OCAMLOPTFLAGS"
mlinc="$OCAMLINC"
objsuffix="o"
ocamlfind="auto"
# sanitize
LC_ALL=C
export LC_ALL
unset IFS
# help
help()
{
cat <<EOF
usage: configure [options]
where options include:
-installdir dir installation directory
-ocamllibdir dir ocaml library directory
-gmp use GMP library (default if found)
-mpir use MPIR library instead of GMP
-perf enable performance statistics
-prefixnonocaml add for non ocaml tool, e.g. -prefixnonocaml x86_64-w64-mingw32-
Environment variables that affect configuration:
CC C compiler to use (default: try gcc, then cc)
CFLAGS extra flags to pass to the C compiler
CPPFLAGS extra includes, e.g. -I/path/to/gmp/include
LDFLAGS extra link flags, e.g. -L/path/to/gmp/lib
OCAMLFLAGS extra flags to pass to the ocamlc Caml compiler
OCAMLOPTFLAGS extra flags to pass to the ocamlopt Caml compiler
OCAMLINC extra includes to pass to the Caml compilers
EOF
exit
}
# parse arguments
while : ; do
case "$1" in
"")
break;;
-installdir|--installdir)
installdir="$2"
shift;;
-ocamllibdir|--ocamllibdir)
ocamllibdir="$2"
shift;;
-no-ocamlfind|--no-ocamlfind)
ocamlfind="no"
shift;;
-help|--help)
help;;
-gmp|--gmp)
gmp='gmp';;
-mpir|--mpir)
gmp='mpir';;
-perf|--perf)
perf='yes';;
-prefixnonocaml|--prefixnonocaml)
prefixnonocaml="$2"
shift;;
*)
echo "unknown option $1, try -help"
exit 2;;
esac
shift
done
if test "$perf" = "yes"; then ccdef="-DZ_PERF_COUNTER $ccdef"; fi
echo_n()
{
echo "$1" | tr -d '\012'
}
# checking binaries in $PATH
searchbin()
{
if test "x$1" = "x"; then return 0; fi
echo_n "binary $1: "
case "$1" in
/*|./*|../*)
if test -f "$1" && test -x "$1"
then echo "found"; return 1
else echo "not found"; return 0
fi;;
esac
IFS=':'
for i in $PATH
do
if test -z "$i"; then i='.'; fi
if test -f $i/$1 && test -x $i/$1; then echo "found in $i"; unset IFS; return 1; fi
done
echo "not found"
unset IFS
return 0
}
searchbinreq()
{
searchbin $1
if test $? -eq 0; then echo "required program $1 not found"; exit 2; fi
}
# checking includes and libraries
checkinc()
{
echo_n "include $1: "
rm -f tmp.c tmp.o
echo "#include <$1>" > tmp.c
echo "int main() { return 1; }" >> tmp.c
r=1
$cc $ccopt $ccinc -c tmp.c -o tmp.o >/dev/null 2>/dev/null || r=0
if test ! -f tmp.o; then r=0; fi
rm -f tmp.c tmp.o
if test $r -eq 0; then echo "not found"; else echo "found"; fi
return $r
}
checklib()
{
echo_n "library $1: "
rm -f tmp.c tmp.out
echo "int main() { return 1; }" >> tmp.c
r=1
$cc $ccopt $cclib tmp.c -l$1 -o tmp.out >/dev/null 2>/dev/null || r=0
if test ! -x tmp.out; then r=0; fi
rm -f tmp.c tmp.o tmp.out
if test $r -eq 0; then echo "not found"; else echo "found"; fi
return $r
}
checkcc()
{
echo_n "checking compilation with $cc $ccopt: "
rm -f tmp.c tmp.out
echo "int main() { return 1; }" >> tmp.c
r=1
$cc $ccopt tmp.c -o tmp.out >/dev/null 2>/dev/null || r=0
if test ! -x tmp.out; then r=0; fi
rm -f tmp.c tmp.o tmp.out
if test $r -eq 0; then echo "not working"; else echo "working"; fi
return $r
}
checkcmxalib()
{
echo_n "library $1: "
$ocamlopt $mloptflags $1 -o tmp.out >/dev/null 2>/dev/null || r=0
if test ! -x tmp.out; then r=0; fi
rm -f tmp.out
if test $r -eq 0; then echo "not found"; else echo "found"; fi
return $r
}
# check required programs
searchbinreq $ocaml
searchbinreq $ocamlc
searchbinreq $ocamldep
searchbinreq $ocamlmklib
if searchbin $ocamldoc; then
ocamldoc=''
fi
if test -n "$CC"; then
searchbinreq "$CC"
cc="$CC"
ccopt="$CFLAGS"
elif ! searchbin 'gcc'; then
cc='gcc'
ccopt="-O3 -Wall -Wextra $CFLAGS"
elif ! searchbin $prefixnonocaml'gcc'; then
cc=$prefixnonocaml'gcc'
ccopt="-O3 -Wall -Wextra $CFLAGS"
elif ! searchbin 'cc'; then
cc='cc'
ccopt="-O3 -Wall -Wextra $CFLAGS"
else
searchbinreq $prefixnonocaml'cc'
cc=$prefixnonocaml'cc'
ccopt="-O3 -Wall -Wextra $CFLAGS"
fi
# optional native-code generation
hasocamlopt='no'
searchbin $ocamlopt
if test $? -eq 1; then hasocamlopt='yes'; fi
# check C compiler
checkcc
if test $? -eq 0; then
# try again with (almost) no options
ccopt='-O'
checkcc
if test $? -eq 0; then echo "cannot compile and link program"; exit 2; fi
fi
# directories
if test "$ocamllibdir" = "auto"
then ocamllibdir=`ocamlc -where | sed 's/\r$//'`
fi
if test ! -f "$ocamllibdir/caml/mlvalues.h"
then echo "cannot find OCaml libraries in $ocamllibdir"; exit 2; fi
ccinc="-I$ocamllibdir $ccinc"
checkinc "caml/mlvalues.h"
if test $? -eq 0; then echo "cannot include caml/mlvalues.h"; exit 2; fi
# optional dynamic linking
hasdynlink='no'
if test $hasocamlopt = yes
then
checkcmxalib dynlink.cmxa
if test $? -eq 1; then hasdynlink='yes'; fi
fi
# installation method
searchbin ocamlfind
if test $? -eq 1 && test $ocamlfind != "no"; then
instmeth='findlib'
if test "$installdir" = "auto"
then installdir=`ocamlfind printconf destdir`; fi
else
searchbin install
if test $? -eq 1; then instmeth='install'
else echo "no installation method found"; exit 2; fi
if test "$installdir" = "auto"; then installdir="$ocamllibdir"; fi
fi
# detect OCaml's word-size
echo "print_int (Sys.word_size);;" > tmp.ml
wordsize=`ocaml tmp.ml`
echo "OCaml's word size is $wordsize"
rm -f tmp.ml
# auto-detect host
if test "x$host" = 'xauto'; then
searchbin uname
if test $? -eq 0; then host='none'
else host=`. ./config.guess`
fi
fi
# check GMP, MPIR
if test "$gmp" = 'gmp' || test "$gmp" = 'auto'; then
checkinc gmp.h
if test $? -eq 1; then
checklib gmp
if test $? -eq 1; then
gmp='OK'
cclib="$cclib -lgmp"
ccdef="-DHAS_GMP $ccdef"
fi
fi
fi
if test "$gmp" = 'mpir' || test "$gmp" = 'auto'; then
checkinc mpir.h
if test $? -eq 1; then
checklib mpir
if test $? -eq 1; then
gmp='OK'
cclib="$cclib -lmpir"
ccdef="-DHAS_MPIR $ccdef"
fi
fi
fi
if test "$gmp" != 'OK'; then echo "cannot find GMP nor MPIR"; exit 2; fi
# OCaml version
ocamlver=`ocamlc -version`
# OCaml version 4.04 or later is required
case "$ocamlver" in
[123].* | 4.0[0123].*)
echo "OCaml version $ocamlver is no longer supported."
echo "OCaml version 4.04.0 or later is required."
exit 2
;;
esac
# -bin-annot available since 4.00.0
echo "OCaml supports -bin-annot to produce documentation"
hasbinannot='yes'
# Changes to C API (the custom_operation struct) since 4.08.0
case "$ocamlver" in
[123].* | 4.0[01234567].* )
echo "Using OCaml legacy C API custom operations"
ccdef="-DZ_OCAML_LEGACY_CUSTOM_OPERATIONS $ccdef"
;;
*)
;;
esac
# dump Makefile
cat > Makefile <<EOF
# generated by ./configure
CC=$cc
OCAMLC=$ocamlc
OCAMLOPT=$ocamlopt
OCAMLDEP=$ocamldep
OCAMLMKLIB=$ocamlmklib
OCAMLDOC=$ocamldoc
OCAMLFLAGS=$mlflags
OCAMLOPTFLAGS=$mloptflags
OCAMLINC=$mlinc
CFLAGS=$ccinc $ccdef $ccopt
LIBS=$cclib
INSTALLDIR=$installdir
INSTALL=install
OCAMLFIND=ocamlfind
INSTMETH=$instmeth
OBJSUFFIX=$objsuffix
HASOCAMLOPT=$hasocamlopt
HASDYNLINK=$hasdynlink
HASBINANNOT=$hasbinannot
include project.mak
EOF
# dump summary
cat <<EOF
detected configuration:
native-code: $hasocamlopt
dynamic linking: $hasdynlink
defines: $ccdef
libraries: $cclib
C options: $ccopt
installation path: $installdir
installation method $instmeth
configuration successful!
now type "make" to build
then type "make install" or "sudo make install" to install
EOF