source: trunk/configure.ac @ 164

## Process this file with autoconf to produce a configure script.
##
## $Id: configure.ac 164 2006-08-23 22:51:01Z jari $
##
## If you grabbed the source from subversion you should, at top-level,
## execute:
##          ./bootstrap

# Copyright (C) 2005, 2006 Jari Häkkinen, Peter Johansson
#
# This file is part of svndigest, http://lev.thep.lu.se/trac/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]],[pre0.5],[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($PACKAGE_NAME,$PACKAGE_VERSION,$PACKAGE_BUGREPORT)

# Checks for programs.
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_INSTALL
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,[  --enable-debug          turn on debug options and code])
if test "${enable_debug}" = "yes" ; then
    CXXFLAGS="$CXXFLAGS -g -O"
else
    CPPFLAGS="$CPPFLAGS -DNDEBUG"
    CXXFLAGS="$CXXFLAGS -O3"
fi

# Apache Portable Runtime (APR) API checks
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 "$apr_found" = "yes" ; then
    LDFLAGS="$LDFLAGS `$apr_config --link-ld`"
    CPPFLAGS="$CPPFLAGS `$apr_config --includes`"
    AC_CHECK_HEADER([apr_allocator.h],,apr_found="no")
fi

# Subversion API checks
svn_found="yes"
AC_ARG_WITH(svn,
  [  --with-svn=DIR          prefix for svn developer files [[PREFIX]]],
  [ LDFLAGS="$LDFLAGS -L$withval/lib" CPPFLAGS="$CPPFLAGS -I$withval/include"])
AC_CHECK_HEADER([subversion-1/svn_types.h],,svn_found="no")
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
    AC_MSG_WARN([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'.])
    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 output 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 compilers and flags 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([])

# 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 runtime. Please
    install gnuplot (available for a wide range of operating systems
    at http://www.gnuplot.info).])
    AC_MSG_NOTICE([])
fi

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