dnl Process this file with autoconf to produce a configure script

dnl CFLAGS=-DDEFAULTLANG=fr to build with French as the default language.

dnl Need autoconf 2.50 or later for AC_ARG_VAR.  2.59 has been around for
dnl long enough, that we might as well just require that.
AC_PREREQ(2.59)
AC_INIT(src/aven.cc)

AM_INIT_AUTOMAKE(survex, 1.1.13)
RELEASE=1

AC_SUBST(RELEASE)
AM_CONFIG_HEADER(config.h)

COPYRIGHT_MSG="Copyright (C) 1990-2010 Olly Betts"
AVEN_COPYRIGHT_MSG="Copyright (C) 1999-2003,2005,2006 Mark R. Shinwell"

AC_DEFINE_UNQUOTED(COPYRIGHT_MSG, ["$COPYRIGHT_MSG"], [Copyright Message])
AC_DEFINE_UNQUOTED(AVEN_COPYRIGHT_MSG, ["$AVEN_COPYRIGHT_MSG"],
		   [Copyright Message for Aven])

AC_SUBST(COPYRIGHT_MSG)
AC_SUBST(AVEN_COPYRIGHT_MSG)

COPYRIGHT_MSG_UTF8=`echo "$COPYRIGHT_MSG"|sed 's/(C)/©/'`
AVEN_COPYRIGHT_MSG_UTF8=`echo "$AVEN_COPYRIGHT_MSG"|sed 's/(C)/©/'`

AC_DEFINE_UNQUOTED(COPYRIGHT_MSG_UTF8, ["$COPYRIGHT_MSG_UTF8"],
		   [Copyright Message in UTF-8])
AC_DEFINE_UNQUOTED(AVEN_COPYRIGHT_MSG_UTF8, ["$AVEN_COPYRIGHT_MSG_UTF8"],
		   [Copyright Message for Aven in UTF-8])

dnl set PRETTYPACKAGE to PACKAGE with the first character capitalised
PRETTYPACKAGE=`echo "$PACKAGE"|cut -b1|tr a-z A-Z``echo "$PACKAGE"|cut -b2-`
AC_DEFINE_UNQUOTED(PRETTYPACKAGE, "$PRETTYPACKAGE",
		   [Name of package (capitalised)])
AC_SUBST(PRETTYPACKAGE)

dnl set COMMAVERSION to VERSION with the dots replaced by commas -
dnl e.g. "0,99" or "1,0,22"
COMMAVERSION=`echo "$VERSION"|tr '.' ','`
AC_DEFINE_UNQUOTED(COMMAVERSION, $COMMAVERSION,
		   [Version number of package (comma-separated)])
AC_SUBST(COMMAVERSION)

PKGDOCDIR='${prefix}/doc/${PACKAGE}'
AC_ARG_ENABLE(docdir,
[  --enable-docdir=DIR Set directory for installing documentation to DIR],
[case $enableval in
 yes|no)
  AC_MSG_ERROR([configure: Syntax: configure --enable-docdir=DIR]) ;;
esac
PKGDOCDIR="$enableval"
]
)
PKGDOCDIR_EXPANDED=`(
 test NONE = "$prefix" && prefix="$ac_default_prefix"
 test NONE = "$exec_prefix" && exec_prefix="$prefix"
 eval echo "$PKGDOCDIR"
)`
AC_SUBST(PKGDOCDIR)
AC_SUBST(PKGDOCDIR_EXPANDED)

DEFAULTLANG=en
AC_ARG_ENABLE(defaultlang,
[  --enable-defaultlang=LANG Set the default language for messages to LANG],
[case $enableval in
 yes|no) # until we support Norwegian...
  AC_MSG_ERROR([configure: Syntax: configure --enable-defaultlang=LANGUAGE]) ;;
esac
DEFAULTLANG="$enableval"
AC_DEFINE_UNQUOTED(DEFAULTLANG, [$enableval], [Default language for messages])
]
)
AC_SUBST(DEFAULTLANG)

AC_ARG_ENABLE(testprogs,
[  --enable-testprogs Enable building of various test harness programs],
[case $enableval in
 yes) TESTPROGS=dump3d ;;
 no) TESTPROGS= ;;
 *) AC_MSG_ERROR(bad value $enableval for --enable-testprogs) ;;
esac
]
AC_SUBST(TESTPROGS)
)

AC_CANONICAL_HOST

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP

AC_PROG_CXX
AC_PROG_CXXCPP

AM_PROG_CC_C_O

AC_LANG_C

AC_PROG_MAKE_SET

AC_EXEEXT
AC_OBJEXT

case $host_os in
*mingw*|*cygwin*|windows*) mswindows=yes ;;
*) mswindows=no ;;
esac

case $host in
powerpc-*-darwin*) macosx=yes ;; # wxWidgets uses this to detect MacOS X
*) macosx=no ;;
esac

AC_C_BIGENDIAN

AC_ARG_VAR(STRIP, [Command for discarding symbols from object files])
AC_PATH_TOOL(STRIP, strip, [echo "not stripping "])

AC_CHECK_LIB(m, sqrt)

AC_PATH_XTRA

WINPROGS=
if test yes = "$mswindows"; then
  WINPROGS='editwrap$(EXEEXT)'
  AC_MSG_RESULT(building editwrap)
fi
AC_SUBST(WINPROGS)

AC_ARG_VAR(WXCONFIG, [Old name for WX_CONFIG, accepted for compatibility])
AC_ARG_VAR(WX_CONFIG, [wxWidgets configuration script to use to build Aven])
: ${WX_CONFIG="$WXCONFIG"}

AM_CONDITIONAL(WIN32, [test yes = "$mswindows"])
AM_CONDITIONAL(MACOSX, [test yes = "$macosx"])

if test -n "$WX_CONFIG" ; then
  dnl WX_CONFIG specified - sanity check the value
  dnl don't check for --ldflags - older wx-config didn't do that
  if (exec >&5 2>&5;$WX_CONFIG --libs --cflags --cxxflags;exit $?) then
    :
  else
    AC_MSG_ERROR(['$WX_CONFIG --libs --cflags --cxxflags' doesn't work, bailing out])
  fi
else
  if test yes = "$macosx" ; then
    dnl FIXME: Not sure if this is useful for newer wx...
    AC_PATH_PROGS(WX_CONFIG, [wxmac-2.8-config wxmac-2.6-config wxmac-2.7-config wxmac-config])
    wxdef=__WXMAC__
  elif test yes = "$mswindows" ; then
    dnl FIXME: Not sure if this is useful for newer wx...
    AC_PATH_PROGS(WX_CONFIG, [wxmsw-2.8-config wxmac-2.6-config wxmac-2.7-config wxmac-config])
    wxdef=__WXMSW__
  else
    wxdef=__WXGTK__
  fi
  if test -z "$WX_CONFIG" ; then
    dnl See if wx-config exists and is for the correct version.
    AC_PATH_PROGS(WX_CONFIG, [wx-config])
    if test -n "$WX_CONFIG" ; then
      if (exec >&5 2>&5;$WX_CONFIG --cflags|grep -e -D"$wxdef";exit $?) then
	:
      else
	WX_CONFIG=
      fi
    fi
  fi
  if test -z "$WX_CONFIG" ; then
    AC_MSG_ERROR([wxWidgets not found.  Run ./configure WX_CONFIG=/path/to/wx-config])
  fi
fi

dnl Unless the user has explicitly specified a --unicode setting, prefer
dnl --unicode=yes if we can get it.
case $WX_CONFIG in
  *--unicode=*) ;;
  *)
    if (exec >&5 2>&5;$WX_CONFIG --unicode=yes --version;exit $?) ; then
      WX_CONFIG="$WX_CONFIG --unicode=yes"
    elif (exec >&5 2>&5;$WX_CONFIG --unicode=no --version;exit $?) ; then
      WX_CONFIG="$WX_CONFIG --unicode=no"
    fi ;;
esac

dnl Call wx-config twice to avoid getting a newline in WX_LIBS.
WX_LIBS=`$WX_CONFIG --libs`" "`$WX_CONFIG --gl-libs`
dnl Needed for nvidia drivers on linux (for some setups anyway).
AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, [WX_LIBS="$WX_LIBS -lXxf86vm"], [], [$WX_LIBS])
AC_SUBST(WX_LIBS)
dnl Older wx-config didn't support --ldflags (2.6.3 doesn't) - error goes to
dnl stderr, with nothing to stdout, so just ignore stderr.
WX_LDFLAGS=`$WX_CONFIG --ldflags 2> /dev/null`
AC_SUBST(WX_LDFLAGS)
WX_CFLAGS=`$WX_CONFIG --cflags`
AC_SUBST(WX_CFLAGS)
WX_CXXFLAGS=`$WX_CONFIG --cxxflags`
AC_SUBST(WX_CXXFLAGS)

dnl Check for ffmpeg
MOVIE_LIBS=
AC_CHECK_LIB(avcodec, avcodec_init,
  [AC_CHECK_LIB(avformat, av_register_all,
    [AC_CHECK_HEADERS([avformat.h],
      [MOVIE_LIBS="-lavformat -lavcodec"])], [], [-lavcodec $WX_LIBS])])
AC_SUBST(MOVIE_LIBS)

AC_LANG_C

dnl Checks for header files.
AC_HEADER_STDC
dnl don't use AC_CHECK_FUNCS for setjmp - mingw #define-s it to _setjmp
AC_CHECK_HEADERS(limits.h string.h setjmp.h sys/select.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_SIZE_T
AC_STRUCT_TM
AC_TYPE_SIGNAL

dnl check if CLOCKS_PER_SEC is defined by time.h (as ANSI says it should be)
dnl if it isn't, assume it is 1000000, as it is on SunOS 4
AC_TRY_COMPILE([#include <time.h>],[
#ifndef CLOCKS_PER_SEC
choke me
#endif
], , AC_DEFINE(CLOCKS_PER_SEC, 1000000, [For old systems which don't define it themselves]))

dnl Look for a signed 32 bit integer type
AC_MSG_CHECKING(for 32 bit integer type)
AC_TRY_COMPILE(,[switch (0) { case (sizeof(int)==4): case 0: break; }],
INT32_T=int,
AC_TRY_COMPILE(,[switch (0) { case (sizeof(long)==4): case 0: break; }],
INT32_T=long,
AC_MSG_ERROR(not found)
)
)
AC_MSG_RESULT($INT32_T)
AC_DEFINE_UNQUOTED(INT32_T,$INT32_T,[signed 32 bit integer type])

dnl Look for a signed 16 bit integer type
AC_MSG_CHECKING(for 16 bit integer type)
AC_TRY_COMPILE(,[switch (0) { case (sizeof(short)==2): case 0: break; }],
INT16_T=short,
AC_TRY_COMPILE(,[switch (0) { case (sizeof(int)==2): case 0: break; }],
INT16_T=int,
AC_MSG_ERROR(not found)
)
)
AC_MSG_RESULT($INT16_T)
AC_DEFINE_UNQUOTED(INT16_T,$INT16_T,[signed 16 bit integer type])

dnl Checks for library functions.
AC_FUNC_STRFTIME
if test yes != "$ac_cv_func_strftime"; then
  AC_LIBOBJ(strftime)
fi
AC_FUNC_VPRINTF
dnl check for strcasecmp here as well as below - this one is to get
dnl HAVE_STRCASECMP defined if appropriate (for img.c)
AC_CHECK_FUNCS(popen signal getpwuid round strcasecmp hypot lstat)

dnl difftime seems to be an ANSI invention
AC_CHECK_FUNCS(difftime)

dnl try to find a case-insensitive compare

strcasecmp=no
dnl The order of these tests is important.
AC_CHECK_FUNC(strcasecmp, [strcasecmp=strcasecmp])
if test no = "$strcasecmp"; then
  AC_CHECK_FUNC(stricmp, [strcasecmp=stricmp])
fi
if test no = "$strcasecmp"; then
  AC_CHECK_FUNC(strcmpi, [strcasecmp=strcmpi])
fi

AC_MSG_CHECKING([how to compare strings ignoring case])
case $strcasecmp in
no)
  AC_LIBOBJ(strcasecmp)
  AC_MSG_RESULT([using own implementation of strcasecmp]) ;;
strcasecmp)
  AC_MSG_RESULT([strcasecmp]) ;;
*)
  AC_DEFINE_UNQUOTED(strcasecmp, "$strcasecmp",
    [strcasecmp define for systems which call it something else])
  AC_MSG_RESULT([$strcasecmp]) ;;
esac

AC_MSG_CHECKING(for sgmltools v2 or v3)
if test : != "$SGMLTOOLS" ; then
  : ${SGMLTOOLS=sgmltools}
  case `(exec 2>&5 ; $SGMLTOOLS --version)` in
  *" version 3"*)
    AC_MSG_RESULT([$SGMLTOOLS]) ;;
  *" version 2"*)
    AC_MSG_RESULT([$SGMLTOOLS]) ;;
  *)
    SGMLTOOLS="$MISSING sgmltools"
    AC_MSG_RESULT(not found) ;;
  esac
else
  AC_MSG_RESULT([$SGMLTOOLS])
fi
AC_SUBST(SGMLTOOLS)
AC_ARG_VAR(SGMLTOOLS, [sgmltools command])

AC_MSG_CHECKING(for docbook-to-man)
if test : != "$DOCBOOK_TO_MAN" ; then
  : ${DOCBOOK_TO_MAN=docbook-to-man}
  $DOCBOOK_TO_MAN 2> /dev/null
  if test $? = 1 ; then
    AC_MSG_RESULT([$DOCBOOK_TO_MAN])
  else
    DOCBOOK_TO_MAN="$MISSING docbook-to-man"
    AC_MSG_RESULT([not found])
  fi
else
  AC_MSG_RESULT([$DOCBOOK_TO_MAN])
fi
AC_SUBST(DOCBOOK_TO_MAN)
AC_ARG_VAR(DOCBOOK_TO_MAN, [docbook-to-man command])

dnl extra warning flags for building with GCC
if test yes = "$GCC"; then
  if test yes = "$cross_compiling"; then
dnl    AM_CFLAGS="$AM_CFLAGS -Werror -Wall -Wunused -Wpointer-arith\
dnl      -Wwrite-strings -Wcast-align"
dnl -Wsign-compare causes a warning with the mingw FD_SET macro, so we have
dnl to disable it for mingw builds.
    AM_CFLAGS="$AM_CFLAGS -Wall -Wunused -Wpointer-arith\
      -Wwrite-strings -Wcast-align"
    AM_CXXFLAGS="$AM_CXXFLAGS -Wall -Wunused -Wpointer-arith\
      -Wwrite-strings -Wcast-align -Wno-sign-compare"
  else
    AM_CFLAGS="$AM_CFLAGS -Wall -W -Wunused -Wshadow -Wpointer-arith\
      -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wnested-externs\
      -Wcast-align"
    dnl -W causes problems with wxWidgets
    AM_CXXFLAGS="$AM_CXXFLAGS -Wall -Wunused -Wshadow -Wpointer-arith\
      -Wwrite-strings -Wcast-align"
  fi
  dnl too many complaints from headers, etc: -Wconversion
fi
AC_SUBST(AM_CFLAGS)
AC_SUBST(AM_CXXFLAGS)

AC_ARG_ENABLE(profiling,
[  --enable-profiling Build binaries to generate profiling information],
[case $enableval in
  yes) AM_CXXFLAGS="$AM_CXXFLAGS -pg"
       AM_CFLAGS="$AM_CFLAGS -pg"
       AC_MSG_RESULT(building binaries to generate profiling information);;
  no) ;;
  *) AC_MSG_ERROR(bad value $enableval for --enable-profiling) ;;
esac])

DOCS_OTHER="manual.rtf manual.txt manual.ps"
AC_SUBST(DOCS_OTHER)

HTMLFILES="AUTHORS.htm HACKING.htm NEWS.htm OLDNEWS.htm TODO.htm index.htm 3dformat.htm"
AC_SUBST(HTMLFILES)

EXTRA_TEXT="AUTHORS COPYING NEWS TODO ChangeLog"
AC_SUBST(EXTRA_TEXT)

AC_SUBST_FILE(DESC)
DESC=desc.txt
AC_SUBST_FILE(AVENDESC)
AVENDESC=desc-aven.txt
AC_SUBST_FILE(SVXEDITDESC)
SVXEDITDESC=desc-svxedit.txt

dnl Don't define DATADIR if building for MS Windows - it won't be used, and
dnl can conflict with the DATADIR typedef in objidl.h
if test no = "$mswindows"; then
  AC_DEFINE_DIR(DATADIR, datadir, [Location of platform independent support files])
fi

AC_CONFIG_FILES([make_release], [chmod +x make_release])
AC_CONFIG_FILES([
 Makefile src/Makefile doc/Makefile lib/Makefile lib/icons/Makefile
 tests/Makefile vim/Makefile survex.iss doc/index.htm doc/survex.1
 doc/version.ent survex.spec src/svxedit lib/survex.keys
 ])
AC_OUTPUT
dnl FIXME update msvc makefile for 1.1 branch
dnl src/msvc/config.h