dnl Process this file with autoconf to produce a configure script.
AC_INIT(iemmatrix.c)

dnl Checks for programs.
AC_PROG_CC

AC_SUBST(STK)
AC_SUBST(DFLAGS)
AC_SUBST(LFLAGS)
AC_SUBST(EXT)
AC_SUBST(LD)
AC_SUBST(STRIPFLAGS)
AC_SUBST(IEMMATRIX_VERSION)
AC_SUBST(REFERENCEPATH)
AC_SUBST(PDLIBDIR)
AC_SUBST(INCLUDES)
AC_SUBST(SOURCES)


AC_ARG_WITH(pdversion, [  --with-pdversion=<ver>  enforce a certain pd-version (e.g. 0.37)])

if test $includedir
then
 for id in $includedir
 do
   if test -d $id
   then 
    INCLUDES="-I$id $INCLUDES"
   fi
 done
fi

dnl Checks for libraries.
dnl Replace `main' with a function in -lc:
AC_CHECK_LIB(c, main)
dnl Replace `main' with a function in -lm:
AC_CHECK_LIB(m, main)
dnl Replace `main' with a function in -lpthread:
dnl AC_CHECK_LIB(pthread, main)
dnl Replace `main' with a function in -lstk:
dnl AC_CHECK_LIB(stk, main, STK=yes)

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(stdlib.h stdio.h string.h math.h time.h sys/time.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_TIME

dnl Checks for library functions.
AC_FUNC_MMAP
AC_CHECK_FUNCS(select socket strerror)


LD=ld
DFLAGS=""

dnl
dnl  OK, checks for machines are here now
dnl
if test `uname -s` = Linux; 
then
  LFLAGS="-export_dynamic  -shared"
  EXT=pd_linux	
  STRIPFLAGS="--strip-unneeded"
fi

dnl This should use '-bundle_loader /path/to/pd/bin/pd' instead of'-undefined suppress'
dnl then strip might do something
if test `uname -s` = Darwin; 
then
  LD=cc
  LFLAGS="-bundle -undefined suppress -flat_namespace"
  EXT=pd_darwin
  STRIPFLAGS=
  if test "$enable_lpt" = "yes"; then
    AC_MSG_ERROR("lpt not supported on this platform");
  fi
  if test "$enable_lpt" = ""; then
    AC_MSG_WARN("lpt not supported on this platform - disabling");
    enable_lpt="no";
  fi
fi
if test `uname | sed -e 's/^MINGW.*/NT/'` = NT; 
then
  LD=gcc
  INCLUDES="-I@prefix@/src"
  DFLAGS="-DMSW -DNT"
  LFLAGS="-shared @prefix@/bin/pd.dll"
  EXT=dll
else
  PDLIBDIR="/lib/pd"
  LIBS="-lc -lm"
fi
if test `uname -s` = IRIX64; 
then
  LFLAGS="-n32 -DUNIX -DIRIX -DN32 -woff 1080,1064,1185 \
	-OPT:roundoff=3 -OPT:IEEE_arithmetic=3 -OPT:cray_ivdep=true \
        -shared -rdata_shared"
  EXT=pd_irix6
  dnl DFLAGS="-DUNIX -DIRIX6"
  STRIPFLAGS="--strip-unneeded"
  if test "$enable_lpt" = "yes"; then
    AC_MSG_ERROR("lpt not supported on this platform");
  fi
  if test "$enable_lpt" = ""; then
    AC_MSG_WARN("lpt not supported on this platform - disabling");
    enable_lpt="no";
  fi
fi

if test `uname -s` = IRIX32; 
then
  LFLAGS="-o32 -DUNIX -DIRIX -O2 
         -shared -rdata_shared"
  EXT=pd_irix5
  dnl DFLAGS="-DUNIX -DIRIX5"
  STRIPFLAGS="--strip-unneeded"
  if test "$enable_lpt" = "yes"; then
    AC_MSG_ERROR("lpt not supported on this platform");
  fi
  if test "$enable_lpt" = ""; then
    AC_MSG_WARN("lpt not supported on this platform - disabling");
    enable_lpt="no";
  fi
fi

dnl Checks for pd-version, to set the correct help-path
AC_MSG_CHECKING("pd\>=0.37")

if test "$with_pdversion" != ""
then
echo -n "($with_pdversion)... "
  PD_VERSION="$with_pdversion"
else
cat > conftest.c << EOF
#include <stdio.h>
#include "m_pd.h"
int main(){
  printf("%d.%d\n", PD_MAJOR_VERSION, PD_MINOR_VERSION);
  return 0;
}
EOF
 if $CC $INCLUDES -o conftest.o conftest.c > /dev/null 2>&1
 then
  PD_VERSION=`./conftest.o`
 else
  PD_VERSION=""
 fi
fi

let PD_MAJORVERSION=`echo $PD_VERSION | cut -d"." -f1`+0
let PD_MINORVERSION=`echo $PD_VERSION | cut -d"." -f2`+0

if test "$PD_MAJORVERSION" -gt 0 || test "$PD_MINORVERSION" -ge 37
then
  REFERENCEPATH=extra/help-
  echo "yes"
else
  REFERENCEPATH=doc/5.reference/
  echo "no"
fi

dnl check for iemmatrix-version (but why...)
AC_MSG_CHECKING("iemmatrix-version")
cat > conftest.c << EOF
#include <stdio.h>
#include "iemmatrix.h"
int main(){
  printf("%s\n", VERSION);
  return 0;
}
EOF

if $CC $INCLUDES -o conftest.o conftest.c > /dev/null 2>&1
then
  IEMMATRIX_VERSION=`./conftest.o`
  echo "$IEMMATRIX_VERSION"
else
  IEMMATRIX_VERSION=""
  echo "(unknown)"
fi

echo "SOURCES = \\"> Make.source
for i in `ls mtx_*.c iemmatrix.c`
do
  echo "	$i\\">> Make.source
done
echo >> Make.source

AC_OUTPUT(Makefile)

rm -f conftest.*