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