permit multiline comments and strings in macros

[bpt/coccinelle.git] / configure.ac

dnl  run 'autoreconf' to obtain aclocal.m4, and update configure and setup/pkg.m4
dnl  run 'automake -acf' to update setup/{install-sh,missing}

dnl  standard initialization (we only use autoconf not automake)
AC_PREREQ([2.68])
AC_INIT([coccinelle], m4_esyscmd([cat ./version | tr -d '\n']), [cocci@diku.dk], [], [http://coccinelle.lip6.fr/])
AC_CONFIG_MACRO_DIR([setup])
AC_CONFIG_AUX_DIR([setup])
AC_SUBST([CONFIGURE_FLAGS], ["$*"])
AC_SUBST([COCCI_VERSION], ["$PACKAGE_VERSION"])
AC_SUBST([COCCI_SRCDIR], ["$(pwd)"])
AC_MSG_NOTICE([configuring coccinelle $COCCI_VERSION in $COCCI_SRCDIR])
AM_INIT_AUTOMAKE

AC_CONFIG_SRCDIR([cocci.ml])    dnl  this file must be present in our src directory
AC_COCCI_CONFVERSION

dnl  reminder that this configure depends on macros generated by aclocal
AC_MSG_NOTICE([this configure program uses pkg-config m4 macros])
AC_MSG_NOTICE([this configure program uses ocaml m4 macros (see setup/ocaml.m4)])
AC_MSG_NOTICE([this configure program uses custom m4 macros (see setup/cocci.m4)])
AC_MSG_NOTICE([some fake substitutions for required but unavailable programs may be used (see setup/fake*)])


dnl
dnl  Note: the conditionals in this configure script are tricky.
dnl  The approach taken here is that many tools can be enabled/disabled
dnl  and paths can be given explicitly via commandline parameters or
dnl  environment variables.
dnl


dnl
dnl  Basic tools
dnl

AC_MSG_NOTICE([verifying basic tools])

AC_PROG_INSTALL
AC_PROG_MKDIR_P
AC_PROG_CPP
AC_PATH_PROG([TAR],[tar])
AC_PATH_PROG([PATCH],[patch])

dnl  ensures that INSTALL points to an absolute install-sh when that one is configured.
AS_IF([test "$INSTALL" = "setup/install-sh -c" -o "$INSTALL" = "./setup-install-sh -c"],
[dnl
  AC_SUBST([INSTALL], ["$COCCI_SRCDIR/$INSTALL"])
])

dnl  the same for MKDIR_P
AS_IF([test "$MKDIR_P" = "setup/install-sh -c -d" -o "$INSTALL" = "./setup-install-sh -c -d"],
[dnl
  AC_SUBST([MKDIR_P], ["$COCCI_SRCDIR/$MKDIR_P"])
])

dnl  patchelf is an optional dependency and in principle not used for building coccinelle
AC_PATH_PROG([PATCHELF],[patchelf])

dnl  pkg config is required, but we have an alternative script for it
AC_COCCI_TOOL([PKG_CONFIG],[pkg-config])
AS_IF([test "x$PKG_CONFIG" = xno],
[dnl  no specific pkg-config configured
  AC_SUBST([PKG_CONFIG_ORIG],[pkg-config])
],
[dnl  a specific pkg-config configured
  AC_SUBST([PKG_CONFIG_ORIG],[$PKG_CONFIG])
])

dnl  always use the wrapper around pkg-config
AC_SUBST([PKG_CONFIG],["$COCCI_SRCDIR/setup/fake-subst.sh $PKG_CONFIG_ORIG"])


dnl  ocaml compiler configuration
AC_PROG_OCAML
AC_CHECK_OCAMLVERSION([OCAMLATLEAST310],[3.10])
AC_CHECK_OCAMLVERSION([OCAMLATLEAST311],[3.11])
AC_SUBST([OCAMLCORIG],["$OCAMLC"])

AS_IF([test "x$OCAMLC" = xno -o "x$OCAMLDEP" = xno -o "x$OCAMLDOC" = xno -o "x$OCAMLMKLIB" = xno],
[dnl
  AC_MSG_ERROR([You must install the OCaml compiler])
])
AS_IF([test "x$OCAMLATLEAST310" = xno],[AC_MSG_NOTICE([a more recent OCaml installation may be required])])

dnl  ocaml tools
AC_PROG_CAMLP4
AC_COCCI_TOOL([OCAMLLEX],[ocamllex],[])
AC_COCCI_TOOL([OCAMLYACC],[ocamlyacc],[])
AC_COCCI_TOOL([OCAMLFIND],[ocamlfind],[$COCCI_SRCDIR/setup/fake-subst.sh ocamlfind])
AC_COCCI_TOOL([OCAMLPROF],[ocamlprof],[])

dnl  enforce ocaml tool requirements
AS_IF([test "x$OCAMLLEX" = xno],
[dnl
  AC_MSG_ERROR([the OCaml Lexer needs to be installed (the ocamllex command). It should be part of your OCaml distribution.])
])

AS_IF([test "x$OCAMLYACC" = xno],
[dnl
  AC_MSG_ERROR([The OCaml parser generated needs to be installed (the ocamlyacc command). It should be part of your OCaml distribution.])
])

AS_IF([test "x$OCAMLFIND" = xno],
[dnl
  AC_MSG_ERROR([A suitable OCaml findlib (the ocamlfind command) could not be found.])
])

dnl  these runtime commands can also be passed as runtime flags to spatch.
AC_COCCI_RUNTIME_CMD([OCAMLFIND],[ocamlfind])
AC_COCCI_RUNTIME_CMD([OCAMLC],[ocamlc])
AC_COCCI_RUNTIME_CMD([OCAMLOPT],[ocamlopt])
AC_COCCI_RUNTIME_CMD([OCAMLDEP],[ocamldep])
AC_COCCI_RUNTIME_CMD([CAMLP4],[camlp4])
AC_COCCI_RUNTIME_CMD([CAMLP4O],[camlp4o])

dnl  AC_CACHE_SAVE


dnl
dnl  Basic ocaml modules
dnl

AC_MSG_NOTICE([verifying basic ocaml modules])

dnl  default dir with the bundled ocaml packages
AC_COCCI_SET_EXTERNAL_DIR([$COCCI_SRCDIR/bundles])

dnl  set some defaults
dnl  add a line for each package that is
dnl  configured via AC_CHECK_COCCI_EXTPKG
dnl  or AC_REQ_COCCI_EXTPKG
AC_COCCI_INIT_PKG_EMPTY([menhirLib])
AC_COCCI_INIT_PKG_EMPTY([dynlink])
AC_COCCI_INIT_PKG_EMPTY([pcre])
AC_COCCI_INIT_PKG_EMPTY([pycaml])
AC_COCCI_INIT_PKG_EMPTY([camlp4])

dnl  required ocaml packages
AC_MSG_NOTICE([the following OCaml packages should be provided by your ocaml installation])
AC_REQ_COCCI_STDPKG([unix])
AC_REQ_COCCI_STDPKG([bigarray])
AC_REQ_COCCI_STDPKG([num])
AC_REQ_COCCI_STDPKG([str])

dnl  required modules (Some are available locally too)
AC_REQ_COCCI_EXTPKG([dynlink])
AC_REQ_COCCI_EXTPKG([camlp4])
AC_REQ_COCCI_EXTPKG([menhirLib])


dnl  AC_CACHE_SAVE


dnl
dnl  Handling of optional features
dnl

AC_MSG_NOTICE([verifying optional features])

dnl  test if the optimized version of dynlink is available
AS_IF([test "x$OCAML_PKG_dynlink" != xno -a -f "$PATH_dynlink/dynlink.cmxa"],
[dnl  yes
  AC_SUBST([OPTIMIZED_dynlink], [yes])
],
[dnl  no
  AC_SUBST([OPTIMIZED_dynlink], [no])
])


dnl  menhir handling
dnl  variables:
dnl    with_menhir: whether or not menhir must be used
AC_COCCI_TOOL([MENHIR],[menhir],[$COCCI_SRCDIR/setup/fake-menhir.sh menhir])
AS_IF([test "x$SUBSTITUTED_MENHIR" = xyes],
[dnl
  AC_MSG_NOTICE([pregenerated parsers will be required as substitute for Menhir])
])


dnl  ocaml script handling
dnl  variables:
dnl    enable_ocaml: whether to enable ocaml scripts
AC_ARG_ENABLE([ocaml], AS_HELP_STRING([--enable-ocaml], [enable ocaml scripting (default: auto)]))
AS_IF([test "x$OCAML_PKG_dynlink" = xno],
[dnl
  AS_IF([test -z "$enable_ocaml"],
  [dnl
    AC_SUBST([enable_ocaml], [no])
    AC_MSG_NOTICE([ocaml scripting is disabled because the 'dynlink' package is not installed])
  ], [test "x$enable_ocaml" != xno],
  [dnl
    AC_MSG_ERROR([the OCaml package dynlink is required for ocaml scripting])
  ])
])

dnl  too old ocaml version, disable dynlink by default
AS_IF([test "x$OCAMLATLEAST311" = xno],
[dnl
  AS_IF([test -z "$enable_ocaml"],
  [dnl
    AC_SUBST([enable_ocaml], [no])
    AC_MSG_NOTICE([ocaml scripting has been disabled by default because your OCaml version may not support dynamic linking properly])
  ], [test "x$enable_ocaml" = xyes],
  [dnl
    AC_MSG_NOTICE([warning: your ocaml version may be too old for dynamic linking, thus ocaml scripting may not work])
  ])
])

dnl  no optimized version, disable dynlink by default
AS_IF([test "x$OPTIMIZED_dynlink" = xno],
[dnl
  AS_IF([test -z "$enable_ocaml"],
  [dnl
    AC_SUBST([enable_ocaml], [no])
    AC_MSG_NOTICE([ocaml scripting has been disabled by default because the optimized version of dynlink is not available])
  ], [test "x$enable_ocaml" = xyes],
  [dnl
    AC_MSG_NOTICE([warning: the optimized version of dynlink is not available, thus ocaml scripting may not work])
  ])
])

dnl  scripting requirement on ocamlfind
AS_IF([test -n "$SUBSTITUTED_OCAMLFIND"],
[dnl
  AS_IF([test -z "$enable_ocaml"],
  [dnl  this is perhaps a bit too strict
    AC_SUBST([enable_ocaml],[no])
    AC_MSG_NOTICE([ocaml scripting is disabled because it depends on ocamlfind])
  ], [test "x$enable_ocaml" != xno],
  [dnl
    AC_MSG_NOTICE([warning: ocamlfind is not found but may be required when ocaml scripts are used])
  ])
])

dnl  scripting requirement on camlp4
AS_IF([test "x$CAMLP4" = xno],
[dnl
  AS_IF([test -z "$enable_ocaml"],
  [dnl  this is perhaps a bit too strict
    AC_SUBST([enable_ocaml],no)
    AC_MSG_NOTICE([ocaml scripting is disabled because it requires camlp4 which is not available])
  ], [test "x$enable_ocaml" != xno],
  [dnl
    AC_MSG_NOTICE([warning: camlp4 is not found but may be required when ocaml scripts are used])
  ])
])

AS_IF([test "x$enable_ocaml" = xno],
[dnl
  AC_COCCI_INIT_PKG_EMPTY([dynlink])    dnl  prevent linking with it
  AC_SUBST(OCAMLCOCCI_MODULE, [No_prepare_ocamlcocci])
  AC_SUBST(OCAMLCOCCI_FILE, [no_prepare_ocamlcocci.ml])
],
[dnl
  AC_SUBST([enable_ocaml], [yes])
  AC_SUBST(OCAMLCOCCI_MODULE, [Yes_prepare_ocamlcocci])
  AC_SUBST(OCAMLCOCCI_FILE, [yes_prepare_ocamlcocci.ml])
])


dnl  python handling
dnl  variables:
dnl    with_python: whether to enable the python feature (and what version)
dnl    OCAML_PKG_pycaml: if "local" use local pycaml package
AC_ARG_VAR([PYTHON], [path to python when the version is determined automatically])
AC_ARG_ENABLE([python], [AS_HELP_STRING([--enable-python], [enable python scripting (yes/no) (default: auto)])])
AS_IF([test "x$enable_python" != xno],
[dnl
  dnl  an explicitly set --with-python disables the global pycaml by default
  dnl  set --enable-pycaml if it is clear that the installed pycaml library
  dnl  is consistent with the chosen python version
  AS_IF([test -n "$enable_python" -a -z "$enable_pycaml"],
  [dnl  if explicit python given: 
    AC_MSG_NOTICE([skipped the selection of a global pycaml module because --enable-python is given explicitly but --enable-pycaml is not.])
    AC_SUBST([enable_pycaml], [no])
  ])

  dnl  sets "$PYVER" if python is available
  AC_COCCI_PYVER

  AS_IF([test -z "$PYVER"],
  [dnl  PYVER undetermined
    AS_IF([test "x$enable_python" = xyes],
    [dnl
      AC_MSG_ERROR([python scripting is enabled explicitly but the version of python could not be determined])
    ])
  ],
  [dnl
    AC_MSG_NOTICE([looking for the corresponding python library])
    PKG_CHECK_MODULES([PYTHON], [python-$PYVER],[AC_SUBST(HAVE_PYTHON,[yes])],[AC_SUBST(HAVE_PYTHON,[no])])

    AS_IF([test "x$HAVE_PYTHON" != xyes -a "x$enable_python" != xyes],
    [dnl  fallback if the above failed
      AC_MSG_NOTICE([trying the default python library as fallback])
      PKG_CHECK_MODULES([PYTHON], [python],[AC_SUBST(HAVE_PYTHON,[yes])],[AC_SUBST(HAVE_PYTHON,[no])])
    ])
  ])
])

AS_IF([test -z "$enable_python"],
[dnl
  AS_IF([test "x$HAVE_PYTHON" = xyes],
  [dnl
    AC_SUBST([enable_python], [yes])
  ],
  [dnl
    AC_SUBST([enable_python], [no])
  ])
])

AS_IF([test "x$enable_python" != xno],
[dnl
  AS_IF([test "x$HAVE_PYTHON" = xyes],
  [dnl
    AC_MSG_NOTICE([support for python scripts is enabled])
  ],
  [dnl
    AC_MSG_ERROR([the python scripts feature is enabled but the pkg-config python library is not found])
  ])

  AC_REQ_COCCI_EXTPKG([pycaml])
  AC_SUBST([PYCOCCI_MODULE], [Yes_pycocci])
  AC_SUBST([PYCOCCI_FILE],[yes_pycocci.ml])
],
[dnl
  AC_COCCI_INIT_PKG_EMPTY([pycaml])
  AC_SUBST([PYCOCCI_MODULE], [No_pycocci])
  AC_SUBST([PYCOCCI_FILE],[no_pycocci.ml])
])


dnl  pcre handling
dnl  variables:
dnl    enable_pcre: whether to enable the pcre feature
dnl    OCAML_PKG_pcre: if "local" use str package
AC_ARG_ENABLE([pcre-syntax], AS_HELP_STRING([--enable-pcre-syntax], [enable pcre regular expression syntax (default: auto)]))
AS_IF([test "x$enable_pcre_syntax" != "xno"],
[dnl
  PKG_CHECK_MODULES([PCRE], [libpcre],[AC_SUBST([HAVE_PCRE],[yes])],[AC_SUBST([HAVE_PCRE],[no])])
  AS_IF([test -z "$enable_pcre_syntax" -a "x$HAVE_PCRE" != xyes],
  [dnl
    AC_SUBST([enable_pcre_syntax], [no])
  ],
  [dnl
    AC_CHECK_COCCI_EXTPKG([pcre])  dnl  will set $enable_pcre to 'yes', 'no', or 'local'
    enable_pcre_syntax=$enable_pcre
  ])
])

AS_IF([test "x$enable_pcre_syntax" != xno],
[dnl
  AS_IF([test "x$HAVE_PCRE" = xyes],
  [dnl
    AC_MSG_NOTICE([support for pcre syntax is enabled])
  ],
  [dnl
    AC_MSG_ERROR([the pcre feature is enabled but the pkg-config libpcre library is not found])
  ])

  AC_SUBST([REGEXP_MODULE], [Regexp_pcre])
  AC_SUBST([REGEXP_FILE], [regexp_pcre.ml])
],
[dnl
  AC_COCCI_INIT_PKG_EMPTY([pcre])
  AC_SUBST([REGEXP_MODULE], [Regexp_str])
  AC_SUBST([REGEXP_FILE], [regexp_str.ml])
])


dnl  AC_CACHE_SAVE


dnl  obtain the value of $prefix
AS_IF([test "$prefix" = "NONE"],[prefix=$ac_default_prefix])


dnl
dnl  backwards compatibility
dnl

dnl  defines some variables needed by the Make infrastructure
AC_SUBST(SHAREDIR,["${prefix}/share/coccinelle"])

AS_IF([test "x$enable_python" != xno],
[dnl
  AC_SUBST(FEATURE_PYTHON, [1])
],
[dnl
  AC_SUBST(FEATURE_PYTHON, [0])
])

AS_IF([test "x$enable_ocaml" != xno],
[dnl
  AC_SUBST(FEATURE_OCAML, [1])
],
[dnl
  AC_SUBST(FEATURE_OCAML, [0])
])

dnl  dynlink stuff depending on the OCaml version and whether it is enabled
AS_IF([test "x$OCAMLATLEAST311" = xyes -a "x$enable_ocaml" = xyes -a "x$OCAMLOPT" != xno],
[dnl
  AC_SUBST([DYNLINK_IS_NATIVE], [Dynlink.is_native])
],
[dnl
  AC_SUBST([DYNLINK_IS_NATIVE], [false])
])

dnl  in case of the compilation of the manual
AC_COCCI_TOOL([PDFLATEX],[pdflatex],[$COCCI_SRCDIR/setup/fake-pdflatex.sh pdflatex])


dnl  determine release configuration
AC_ARG_ENABLE([release], [AS_HELP_STRING([--enable-release], [build with a release configuration (yes,no,profile default: no)])])
AS_IF([test -z "$enable_release"],
[dnl
  AC_MSG_NOTICE([choosing the development Makefile configuration because the release configuration is not explicitly requested.])
  AC_SUBST([enable_release], [no])
])

AC_SUBST([MODULES_profiling],[])
AS_IF([test "x$enable_release" = xyes],
[dnl  set the default target to 'release' when enable_release is given
  AC_SUBST([MAKETARGET_ALL], [all-release])
], [test "x$enable_release" = xno],
[dnl  otherwise, set the default target to 'dev'
  AC_SUBST([MAKETARGET_ALL], [all-dev])
], [test "x$enable_release" = xprofile],
[dnl  selected profiling
  AS_IF([test -z "$OCAMLPROF" -o "x$OCAMLPROF" = xno],
  [dnl
    AC_MSG_ERROR([ocamlprof is required for profiling, but is absent.])
  ])

  dnl  configuration-time overrides for profiling
  AC_SUBST([MAKETARGET_ALL], [all-dev])
  AC_SUBST([OCAMLC], ["$COCCI_SRCDIR/setup/wrapper-ocamlcp.sh $OCAMLCORIG $OCAMLPROF"])
  AC_SUBST([MODULES_profiling], [profiling.cmo])
  AC_MSG_NOTICE([configured coccinelle for profiling])
],
[dnl  custom target given
  AC_SUBST([MAKETARGET_ALL], ["$enable_release"])
])

dnl  determine whether to build the optimizing version
AC_ARG_ENABLE([opt], [AS_HELP_STRING([--enable-opt], [build an optimized spatch (yes,no, default: auto)])])
AS_IF([test "x$OCAMLOPT" = xno -a "x$enable_opt" != xno],
[dnl
  AS_IF([test -n "$enable_release" -a "x$enable_release" != xyes -a "x$enable_release" != xno],
  [dnl
    AC_MSG_NOTICE([warning: ensure that make target $enable_release does not depend on the unavailable ocamlopt])
  ], [test "x$enable_opt" = xyes],
  [dnl
    AC_MSG_ERROR([the optimized version of coccinelle is requested explicitly, but ocamlopt is absent])
  ],
  [dnl
    AC_MSG_NOTICE([the optimized version of coccinelle will not be build because ocamlopt is not present])
    AC_SUBST([enable_opt], [no])
  ])
])

AS_IF([test "x$OCAMLVERSION" = x3.11.2 -a -z "$enable_opt"],
[dnl  the optimized version may not be buildable with ocaml 3.11.2 (know bug), hence disable it by default
  AC_MSG_NOTICE([the optimized version of coccinelle will not be build by default due to OCaml version $OCAMLVERSION])
  AC_SUBST([enable_opt], [no])
])

dnl  disable the optimized target when dynlinking is enabled but the optimized version of dynlink is not available
AS_IF([test "x$OPTIMIZED_dynlink" = xno -a "x$enable_ocaml" = xyes],
[dnl
  AS_IF([test -z "$enable_opt"],
  [dnl
    AC_MSG_NOTICE([the optimized version of coccinelle will not be build by default because ocaml scripting is enabled but the required optimized dynlink package is not present])
    AC_SUBST([enable_opt], [no])
  ], [test "x$enable_opt" = xyes],
  [dnl
    AC_MSG_ERROR([the optimized version of coccinelle in combination with ocaml scripting requires the optimized version of the dynlik package, which is not present])
  ])
])

dnl  set the default enable-opt setting
AS_IF([test -z "$enable_opt"],
[dnl
  AS_IF([test "x$enable_release" = xyes -o "x$enable_release" = xno],
  [dnl
    AC_SUBST([enable_opt], ["$enable_release"])
  ])
])

dnl  variables depending on whether we build the optimized spatch
AS_IF([test "x$enable_opt" = xyes],
[dnl  default target for the optimized version
  AC_SUBST([SPATCHNAME], [spatch.opt])
  AC_SUBST([MAKETARGET_SPATCH], [opt-only])
],
[dnl  default target for the bytecode version
  AC_SUBST([SPATCHNAME], [spatch])
  AC_SUBST([MAKETARGET_SPATCH], [byte-only])
])


dnl  ocamlbuild handling
AC_ARG_ENABLE([ocamlbuild], AS_HELP_STRING([--enable-ocamlbuild], [enable ocamlbuild support (default: no)]))
AS_IF([test "x$enable_ocamlbuild" = xyes],
[dnl  ocamlbuild support requested
  AS_IF([test -z "$OCAMLBUILD" -o "x$OCAMLBUILD" = xno],
  [dnl
    AC_MSG_ERROR([Ocamlbuild is required but is not installed.])
  ])

  AC_SUBST([FEATURE_OCAMLBUILD], [yes])
],
[dnl  default: disable ocamlbuild support
  AC_SUBST([FEATURE_OCAMLBUILD], [ ])
])


dnl
dnl  generating configuration
dnl

AC_CONFIG_FILES([
  Makefile.config
  version.ml
  commons/commands.ml
  globals/config.ml globals/regexp.ml python/pycocci.ml
  ocaml/prepare_ocamlcocci.ml
  scripts/spatch.sh
  docs/spatch.1
  myocamlbuild.ml

  setup/Makefile
])

AC_OUTPUT

AC_MSG_NOTICE([configuration completed])

cat << EOF
------------------------------------------------------------------------------
Summary

configure flags:  $CONFIGURE_FLAGS
findlib:          $OCAMLFIND	(an actual version is strongly recommended)
menhir:           $MENHIR	(should be an optional tool)
menhirLib module: $enable_menhirLib	(for local package use --disable-menhirLib)

ocaml scripting:  $enable_ocaml	(overridable with --enable-ocaml)
python scripting: $enable_python	(overridable with --enable-python)
pycaml module:    $enable_pycaml	(for local package use --disable-pycaml)

pcre regexes:     $enable_pcre_syntax	(overridable with --enable-pcre-syntax)
pcre module:      $enable_pcre	(for local package use --disable-pcre)
pcre library:     $HAVE_PCRE	(requires the dev version of libpcre)

release config:   $enable_release	(strongly recommended to be 'yes', overridable with --enable-release)
optimized spatch: $enable_opt	(overridable with --disable-opt)

------------------------------------------------------------------------------
Coccinelle can now be compiled and installed.


If you compile coccinelle again after source code changes or
configuration changes, you may need to run first:
  \$ make clean

To compile coccinelle, run:
  \$ make all

To install coccinelle, run:
  \$ make install

Then, to test coccinelle, run for example:
  \$ spatch -sp_file demos/simple.cocci demos/simple.c -o /tmp/new_simple.c

Or when coccinelle is not installed yet:
  \$ COCCINELLE_HOME=$(pwd) ./scripts/spatch -sp_file demos/simple.cocci demos/simple.c -o /tmp/new_simple.c
EOF

if test "x$enable_python" != "xno"; then
cat << EOF
------------------------------------------------------------------------------
You may need to set some environment variables so that the python
libraries are found. The frontend 'spatch' sets the following variables:

  \$ export LD_LIBRARY_PATH=\$LD_LIBRARY_PATH:$prefix/lib
  \$ export PYTHONPATH=\$PYTHONPATH:$prefix/share/coccinelle/python

EOF
fi

cat << EOF
------------------------------------------------------------------------------
EOF