dnl Process this file with autoconf to produce a configure script.
dnl -- adapted from 'configure.in' in ggee distribution by Guenter Geiger
AC_PREREQ(2.5)
AC_INIT(pd-flite, [0.01], [moocow@ling.uni-potsdam.de])

dnl
dnl source & aux
dnl
AC_CONFIG_AUX_DIR(config)

dnl
dnl use automake
dnl
AM_INIT_AUTOMAKE(pd-flite, [0.01])

dnl
dnl use autoheader
dnl
AM_CONFIG_HEADER(config.h)

dnl
dnl default prefix (== pd-dir)
dnl
AC_PREFIX_DEFAULT(/usr/local/lib/pd)

dnl
dnl Save user flags
dnl
UCFLAGS="$CFLAGS"
ULDFLAGS="$LDFLAGS"
ULIBS="$LIBS"

dnl
dnl Programs
dnl
AC_PROG_CC
AC_PROG_INSTALL

dnl
dnl Substitutions
dnl 
AC_SUBST(AFLAGS)
AC_SUBST(DFLAGS)
AC_SUBST(IFLAGS)
AC_SUBST(LFLAGS)
AC_SUBST(OFLAGS)
AC_SUBST(WFLAGS)
AC_SUBST(LD)
AC_SUBST(EXT)

dnl version stuff (automatically exported?)
AC_SUBST(PACKAGE_VERSION)
AC_SUBST(PACKAGE_NAME)
AC_SUBST(BUGREPORT)


dnl
dnl pd-directory/ies
dnl 
AC_ARG_WITH(pd-dir,
	AC_HELP_STRING([--with-pd-dir=DIR], [PD base directory (default=/usr/local/pd)]),
	[PD_DIR="$withval"],
	[PD_DIR="/usr/local/pd"])
AC_SUBST(PD_DIR)

AC_ARG_WITH(pd-include,
	AC_HELP_STRING([--with-pd-include=DIR], [PD include directory (default=${PD_DIR}/src)]),
	[PD_INC="$withval"],
	[PD_INC="${PD_DIR}/src"])
IFLAGS="$IFLAGS -I${PD_INC}"
AC_SUBST(PD_INC)

AC_ARG_WITH(pd-externs,
	AC_HELP_STRING([--with-pd-externs=DIR], [PD externals directory (default=${PD_DIR}/externs)]),
	[PD_EXTDIR="$withval"],
	[PD_EXTDIR="${PD_DIR}/externs"])
AC_SUBST(PD_EXTDIR)


AC_ARG_WITH(pd-doc,
	AC_HELP_STRING([--with-pd-doc=DIR],
	     [PD documentation directory (default=${PD_DIR}/doc/5.reference)]),
	[PD_DOCDIR="$withval"],
	[PD_DOCDIR="${PD_DIR}/doc/5.reference"])
AC_SUBST(PD_DOCDIR)


dnl
dnl flite-directory
dnl 
AC_ARG_WITH(flite-dir,
	AC_HELP_STRING([--with-flite-dir=DIR], [Flite base directory (default=/usr/local/lib/flite-1.1-release)]),
	[FLITE_DIR="$withval"],
	[FLITE_DIR="/usr/local/lib/flite-1.1-release"])
AC_SUBST(FLITE_DIR)
IFLAGS="$IFLAGS -I${FLITE_DIR}/include"
LFLAGS="$LFLAGS -L${FLITE_DIR}/lib"

dnl
dnl Check for flite : headers
dnl
UCPPFLAGS="$CPPFLAGS"
CPPFLAGS="$UCPPFLAGS $IFLAGS"
for h in flite.h ; do
  AC_CHECK_HEADER($h,[pdflite_have_header="yes"],[pdflite_have_header="no"],[ ])
  if test "$pdflite_have_header" = "no" ; then
    AC_MSG_ERROR([required header 'flite.h' not found -- quitting],1)
  fi
done
CPPFLAGS="$UCPPFLAGS"

dnl
dnl Check for flite : libs : flite
dnl
LDFLAGS="$ULDFLAGS $LFLAGS"
LIBS="$LIBS -lm"
AC_CHECK_LIB(flite,[flite_init],[],
	[AC_MSG_ERROR([required library 'libflite.a' not found -- quitting],1)],
	[-lm])
LDFLAGS="$ULDFLAGS"
FLITE_LIBS="-lflite -lm"
AC_SUBST(FLITE_LIBS)

dnl
dnl Check for flite : libs : flite_cmulex
dnl
LDFLAGS="$ULDFLAGS $LFLAGS"
AC_CHECK_LIB(flite_cmulex,[cmu_lex_init],[],
	[AC_MSG_ERROR([required library 'libflite_cmulex.a' not found -- quitting],1)],
	[-lflite -lm])
FLITE_LEXLIBS="-lflite_cmulex"
AC_SUBST(FLITE_LEXLIBS)

dnl
dnl Check for flite : libs : flite_usenglish
dnl
LDFLAGS="$ULDFLAGS $LFLAGS"
AC_CHECK_LIB(flite_usenglish,[usenglish_init],[],
	[AC_MSG_ERROR([required library 'libflite_usenglish.a' not found -- quitting],1)],
	[-lflite_cmulex -lflite -lm])
FLITE_LANGLIBS="-lflite_usenglish"
AC_SUBST(FLITE_LANGLIBS)

dnl Check for flite : libs : flite_cmu_us_kal16
dnl
LDFLAGS="$ULDFLAGS $LFLAGS"
AC_CHECK_LIB(flite_cmu_us_kal16,[register_cmu_us_kal],[],
	[AC_MSG_ERROR([required library 'libflite_cmu_us_kal16.a' not found -- quitting],1)],
	[-lflite_usenglish -lflite_cmulex -lflite -lm])
FLITE_VOICELIBS="-lflite_cmu_us_kal16"
AC_SUBST(FLITE_VOICELIBS)

AC_DEFINE([PDFLITE_REGISTER_VOICE],[register_cmu_us_kal],
	[This is the function we will call to register the synth voice])



dnl
dnl debug version?
dnl
AC_MSG_CHECKING([whether we are building a debug version])
AC_ARG_ENABLE([debug],
	AC_HELP_STRING([--enable-debug],[build debug version (default=no)]))

if test "$enable_debug" = "yes" ; then
  AC_MSG_RESULT(yes)
  DEBUG="yes"
  DFLAGS="$DFLAGS -DPDFLITE_DEBUG"
else
  AC_MSG_RESULT(no)
  DEBUG="no"
fi
AC_SUBST(DEBUG)

dnl
dnl compiler warnings
dnl
WFLAGS="-Wall"


dnl
dnl machine-dependent variables
dnl
LD=ld
if test `uname -s` = Linux; 
then
  LFLAGS="$LFLAGS -export_dynamic -shared"
  if test "$DEBUG" = "no"; then
    #OFLAGS="-O6 -funroll-loops -fomit-frame-pointer"
    OFLAGS="-O3 -funroll-loops -fomit-frame-pointer -pipe"
  else
    OFLAGS="-g"
  fi
  OFLAGS="$OFLAGS -fPIC"
  DFLAGS="$DFLAGS -DPIC"
  EXT=pd_linux
fi

if test `uname -m` = alpha; 
then 
 AFLAGS="-mieee  -mcpu=ev56"; 
 OFLAGS="$CFLAGS"
fi

if test `uname -s` = IRIX64; 
then
  LFLAGS="$LFLAGS -n32 -DUNIX -DIRIX -DN32 -woff 1080,1064,1185 \
	-OPT:roundoff=3 -OPT:IEEE_arithmetic=3 -OPT:cray_ivdep=true \
	-shared -rdata_shared"
  OFLAGS="$CFLAGS"
EXT=pd_irix6
fi

if test `uname -s` = IRIX32; 
then
  LFLAGS="$LFLAGS -o32 -DUNIX -DIRIX -O2 -shared -rdata_shared"
  OFLAGS="$CFLAGS"
  EXT=pd_irix5
fi

dnl
dnl Flags for MacOSX, borrowed from pd-0.35-test16
dnl
if test `uname -s` = Darwin;
then
  LD=cc
  LFLAGS="$LFLAGS -bundle -undefined suppress  -flat_namespace"
  EXT=pd_darwin
  DFLAGS="$DFLAGS -DMACOSX"

  if test "$DEBUG" = "no"; then
    OFLAGS="-O2"
  else
    OFLAGS="-g"
  fi
fi

dnl
dnl Restore user flags
dnl
LDFLAGS="$ULDFLAGS"
CFLAGS="$UCFLAGS"
LIBS="$ULIBS"

AC_OUTPUT(config/Makefile Makefile)