source: trunk/configure.ac @ 519

## Process this file with autoconf to produce a configure script.
##
## $Id: configure.ac 519 2007-12-23 20:14:50Z jari $
##
## If you grabbed the source from subversion you should, at top-level,
## execute:
##          ./bootstrap
## To push subsequent changes of this file into the build scripts you
## must issue:
##          autoreconf

# Copyright (C) 2005 Jari Häkkinen, Peter Johansson
# Copyright (C) 2006 Jari Häkkinen
# Copyright (C) 2007 Jari Häkkinen, Peter Johansson
#
# This file is part of svndigest, http://trac.thep.lu.se/svndigest
#
# svndigest is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# svndigest is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

AC_PREREQ(2.57)
AC_INIT([svndigest],[pre0.7],[jari@thep.lu.se])
AC_CONFIG_SRCDIR([lib/File.h])
AC_CONFIG_AUX_DIR([autotools])
AC_PREFIX_DEFAULT([/usr/local])
test $prefix = NONE && prefix=/usr/local

AM_CONFIG_HEADER([config.h])
AM_INIT_AUTOMAKE([std-options check-news])

# Set default programming language
AC_LANG(C++)

# Checks for programs.
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_LIBTOOL
AC_PROG_RANLIB
AC_CHECK_PROG([GNUPLOT],[gnuplot],[ok])

# -Wno-long-long is needed to suppress compiler diagnostics regarding
# using extension beyond the C++ standard (usage of non C++ standard
# 'long long' types).
CXXFLAGS="-Wall -pedantic -Wno-long-long"

AC_ARG_ENABLE(debug,
  [AS_HELP_STRING([--enable-debug],[turn on debug options and code])],
  [CXXFLAGS="$CXXFLAGS -g -O"], 
  [CPPFLAGS="$CPPFLAGS -DNDEBUG" CXXFLAGS="$CXXFLAGS -O3"])

AC_ARG_ENABLE(wctests,
  [AS_HELP_STRING([--enable-wctests],[turn on all tests, tests
  requiring a subversion WC are disabled by default])], [wctests=true])
AM_CONDITIONAL(WCTESTS, test x$wctests = xtrue)

# optionally prepare for building static libraries.
AC_ARG_ENABLE(staticbin,
  [AS_HELP_STRING([--enable-staticbin], [create a static binary,
  at least as static as the available underlying libraries
  allows])])
if test "$enable_staticbin" = "yes"; then
  case $host in
  *-apple-darwin*)
    # At the time of creating this libsvn_subr uses
    # Keychain on Mac OSX. In consequence the below
    # frameworks are needed for succesful static builds.
    LIBS="$LIBS -framework Security"
    LIBS="$LIBS -framework CoreFoundation"
    LIBS="$LIBS -framework CoreServices"
    ;;
  esac
  STATICFLAG=-static
  AC_SUBST(STATICFLAG)
fi

# Apache Portable Runtime (APR) API checks
# The next three lines are not needed as long as APR_FIND_APR is used.
# AC_ARG_WITH(apr,
#  [  --with-apr=DIR          prefix for installed APR or path to APR build
#                          tree [[PREFIX]]])
# Include APR_FIND_APR macro distributed within the APR project. If
# the usage of the APR macro is to be omitted then the construct for
# setting the CXXFLAGS (header file location) and LDFLAGS (linking
# informaion) for APR must be changed. The latter can be achieved with
# AC_SEARCH_LIBS([apr_allocator_create],[apr-0],,apr_found="no") but
# apr-0 must be prior knowledge.
sinclude(./build_support/find_apr.m4)
APR_FIND_APR(,,1)
if test "$apr_found" = "yes" ; then
    LDFLAGS="`$apr_config --link-ld` $LDFLAGS"
    CPPFLAGS="`$apr_config --includes` $CPPFLAGS"
    AC_CHECK_HEADER([apr_allocator.h],,apr_found="no")
fi

# Subversion API checks
svn_found="yes"
AC_ARG_WITH(svn,
  [AS_HELP_STRING([--with-svn=DIR],[prefix for svn developer files [[PREFIX]]])],
  [ LDFLAGS="-L$withval/lib $LDFLAGS" CPPFLAGS="-I$withval/include $CPPFLAGS"])
AC_CHECK_HEADER([subversion-1/svn_types.h],,svn_found="no")
# The library checks below may match shared libs even when
# --enable-staticbin is given to configure. This should probably not
# pose any problems since in a properly installed system the shared
# and static libraries should be the same.
AC_SEARCH_LIBS([svn_cmdline_setup_auth_baton],[svn_subr-1],,svn_found="no")
AC_SEARCH_LIBS([svn_ra_initialize],[svn_ra-1],,svn_found="no")
AC_SEARCH_LIBS([svn_wc_adm_open3],[svn_wc-1],,svn_found="no")
AC_SEARCH_LIBS([svn_diff_file_options_create],[svn_diff-1],,svn_found="no")
AC_SEARCH_LIBS([svn_client_log3],[svn_client-1],,svn_found="no")

AC_CONFIG_FILES([Makefile
                bin/Makefile
                lib/Makefile
                test/Makefile])

# Print failure status information about selected items, and exit if
# fatal errors were encountered. No output will be created if
# configure is halted prematurely.

# used to trigger exit before creation of output
all_reqs_ok="true"

# Non-existing APR is fatal -- sub-sequent compilation will fail.
if (test "$apr_found" = "no") ; then
    AC_MSG_WARN([APR not found. The Apache Portable Runtime
    (APR) library cannot be found. Please make sure APR is installed
    and supply the appropriate --with-apr option to 'configure'.])
    all_reqs_ok="false"
fi

# Non-existing subversion API is fatal -- sub-sequent compilation will fail.
if (test "$svn_found" = "no") ; then
    svn_msg="Subversion API not found. Subversion API libraries cannot
    be found. Make sure the APIs are installed and supply the
    appropriate --with-svn option to 'configure'."
if (test "$apr_found" = "no") ; then
    svn_msg="$svn_msg
    Note, APR was not found. Failure to locate APR affects the
    location of the subversion API. Please fix the APR problem before
    trying to resolve the subversion related issues."
fi
    AC_MSG_WARN([$svn_msg])
    all_reqs_ok="false"
fi

if (test "$all_reqs_ok" = "false") ; then
    AC_MSG_ERROR([Some pre-requisites were not fulfilled, aborting
    configure. Please consult the 'README' file for more information
    about what is needed to compile svndigest and refer to above
    warning messages. Needed files were NOT created.])
fi

# Create output.
AC_OUTPUT

# Some more messages.
AC_MSG_NOTICE([])
AC_MSG_NOTICE([   Ready to compile the executables of svndiget])
AC_MSG_NOTICE([   The following flags and libs will be used:])
AC_MSG_NOTICE([   +++++++++++++++++++++++++++++++++++++++++++++++])
AC_MSG_NOTICE([    Preprocessor flags: CPPFLAGS=\"$CPPFLAGS\"])
AC_MSG_NOTICE([    C++ flags:          CXXFLAGS=\"$CXXFLAGS\"])
AC_MSG_NOTICE([    Linker flags:       LDFLAGS=\"$LDFLAGS\"])
AC_MSG_NOTICE([    LIBS:               LIBS=\"$LIBS\"])
AC_MSG_NOTICE([   +++++++++++++++++++++++++++++++++++++++++++++++])
AC_MSG_NOTICE([])

if (test "$wctests") ; then
    AC_MSG_NOTICE([WC dependent tests are enabled])
else
    AC_MSG_NOTICE([WC dependent tests are disabled ... okay for most users])
    AC_MSG_NOTICE([Developers, use --enable-wctests to enable WC tests])
fi
AC_MSG_NOTICE([])

# Failure to locate gnuplot is not considered fatal
if (test "$GNUPLOT" != "ok") ; then
    AC_MSG_WARN([Gnuplot was not found. svndigest will compile
    without gnuplot but will throw an exception at run-time. Please
    install gnuplot (available for a wide range of operating systems
    at http://www.gnuplot.info).])
    AC_MSG_NOTICE([])
fi

if test "$enable_staticbin" = "yes"; then
    AC_MSG_NOTICE([A statically linked 'svndigest' binary will be created.])
else
    AC_MSG_NOTICE([A dynamically linked 'svndigest' binary will be created.])
fi
    AC_MSG_NOTICE([])

AC_MSG_NOTICE([Now type 'make ; make check'.])