#!/bin/sh

AC_INIT(VERSION,, eda-dev@opencircuitdesign.com)
AC_PREREQ(2.60)
AC_CONFIG_SRCDIR([Makefile.in])

# Determine the host and build type.
# ===========================================================================
AC_CANONICAL_HOST

PACKAGE=qflow
VERSION=`cat ./VERSION | cut -d. -f1-2`
REVISION=`cat ./VERSION | cut -d. -f3`

AC_SUBST(VERSION)
AC_SUBST(REVISION)
AC_ARG_PROGRAM

# Required programs
# ===========================================================================
AC_PROG_CC
AC_PROG_CPP
AC_ISC_POSIX
if test "x$U" != "x"; then
  AC_MSG_ERROR(Compiler not ANSI compliant)
fi
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_CHECK_PROG(AUTOCONF, autoconf, autoconf, :)
AC_CHECK_PROG(CP, cp, cp, :)
AC_CHECK_PROG(RM, rm, rm, :)
AC_CHECK_PROG(HAVE_PYTHON3, python3, yes, no)

AC_LANG_C
AC_HEADER_STDC
AC_CHECK_FUNCS(setenv putenv)

AC_PATH_PROG(ENV_PATH, env, env, $PATH)

# Options
# =========================================

dnl Path to Tcl/Tk

AC_ARG_WITH(tclsh,
[  --with-tclsh=DIR		path to tclsh], [
   if test -d "$withval"; then
      TCLSH_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "/tclsh";  remove it
      TCLSH_DIR=${withval%/tclsh}
   else
      TCLSH_DIR=${PATH}
   fi
   AC_PATH_PROG(TCLSH_PATH, tclsh, tclsh, $TCLSH_DIR)
], [
   AC_PATH_PROG(TCLSH_PATH, tclsh, tclsh, )])
AC_DEFINE_UNQUOTED(TCLSH_PATH, "$TCLSH_PATH")

dnl Path to Magic 8.X

AC_ARG_WITH(magic,
[  --with-magic=DIR		path to magic-8.X], [
   if test -d "$withval"; then
      QFLOW_MAGIC_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "/magic";  remove it
      QFLOW_MAGIC_DIR=${withval%/magic}
   else
      QFLOW_MAGIC_DIR=${PATH}
   fi
   AC_PATH_PROG(QFLOW_MAGIC_PATH, magic, , $QFLOW_MAGIC_DIR)
], [
   AC_PATH_PROG(QFLOW_MAGIC_PATH, magic, , )])
AC_DEFINE_UNQUOTED(QFLOW_MAGIC_PATH, "$QFLOW_MAGIC_PATH")

dnl Path to Netgen

AC_ARG_WITH(netgen,
[  --with-netgen=DIR		path to netgen], [
   if test -d "$withval"; then
      QFLOW_NETGEN_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "/netgen";  remove it
      QFLOW_NETGEN_DIR=${withval%/netgen}
   else
      QFLOW_NETGEN_DIR=${PATH}
   fi
   AC_PATH_PROG(QFLOW_NETGEN_PATH, netgen, , $QFLOW_NETGEN_DIR)
], [
   AC_PATH_PROG(QFLOW_NETGEN_PATH, netgen, , )])
AC_DEFINE_UNQUOTED(QFLOW_NETGEN_PATH, "$QFLOW_NETGEN_PATH")

dnl Path to Qrouter

AC_ARG_WITH(qrouter,
[  --with-qrouter=DIR		path to qrouter], [
   if test -d "$withval"; then
      QFLOW_QROUTER_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "/qrouter";  remove it
      QFLOW_QROUTER_DIR=${withval%/qrouter}
   else
      QFLOW_QROUTER_DIR=${PATH}
   fi
   AC_PATH_PROG(QFLOW_QROUTER_PATH, qrouter, , $QFLOW_QROUTER_DIR)
], [
   AC_PATH_PROG(QFLOW_QROUTER_PATH, qrouter, , )])
AC_DEFINE_UNQUOTED(QFLOW_QROUTER_PATH, "$QFLOW_QROUTER_PATH")

dnl Path to GrayWolf

AC_ARG_WITH(graywolf,
[  --with-graywolf=DIR		path to graywolf], [
   if test -d "$withval"; then
      QFLOW_GRAYWOLF_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "/graywolf";  remove it
      QFLOW_GRAYWOLF_DIR=${withval%/graywolf}
   else
      QFLOW_GRAYWOLF_DIR=${PATH}
   fi
   AC_PATH_PROG(QFLOW_GRAYWOLF_PATH, graywolf, , $QFLOW_GRAYWOLF_DIR)
], [
   AC_PATH_PROG(QFLOW_GRAYWOLF_PATH, graywolf, , )])
AC_DEFINE_UNQUOTED(QFLOW_GRAYWOLF_PATH, "$QFLOW_GRAYWOLF_PATH")

dnl Path to yosys

AC_ARG_WITH(yosys,
[  --with-yosys=DIR		path to yosys], [
   if test -d "$withval"; then
      QFLOW_YOSYS_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "/yosys";  remove it
      QFLOW_YOSYS_DIR=${withval%/yosys}
   else
      QFLOW_YOSYS_DIR=${PATH}
   fi
   AC_PATH_PROG(QFLOW_YOSYS_PATH, yosys, , $QFLOW_YOSYS_DIR)
], [
   AC_PATH_PROG(QFLOW_YOSYS_PATH, yosys, , )])
AC_DEFINE_UNQUOTED(QFLOW_YOSYS_PATH, "$QFLOW_YOSYS_PATH")

dnl Path to OpenTimer

AC_ARG_WITH(opentimer,
[  --with-opentimer=DIR		path to ot-shell], [
   if test -d "$withval"; then
      QFLOW_OPENTIMER_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "ot-shell";  remove it
      QFLOW_OPENTIMER_DIR=${withval%/ot-shell}
   else
      QFLOW_OPENTIMER_DIR=${PATH}
   fi
   AC_PATH_PROG(QFLOW_OPENTIMER_PATH, ot-shell, , $QFLOW_OPENTIMER_DIR)
], [
   AC_PATH_PROG(QFLOW_OPENTIMER_PATH, ot-shell, , )])
AC_DEFINE_UNQUOTED(QFLOW_OPENTIMER_PATH, "$QFLOW_OPENTIMER_PATH")

dnl Path to abk-openroad OpenSTA

AC_ARG_WITH(opensta,
[  --with-opensta=DIR		path to sta], [
   if test -d "$withval"; then
      QFLOW_OPENSTA_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "sta";  remove it
      QFLOW_OPENSTA_DIR=${withval%/sta}
   else
      QFLOW_OPENSTA_DIR=${PATH}
   fi
   AC_PATH_PROG(QFLOW_OPENSTA_PATH, sta, , $QFLOW_OPENSTA_DIR)
], [
   AC_PATH_PROG(QFLOW_OPENSTA_PATH, sta, , )])
AC_DEFINE_UNQUOTED(QFLOW_OPENSTA_PATH, "$QFLOW_OPENSTA_PATH")

dnl Path to abk-openroad RePlAce and detail placement ntuplace3/ntuplace4h

AC_ARG_WITH(replace,
[  --with-replace=DIR		path to RePlAce], [
   if test -d "$withval"; then
      QFLOW_REPLACE_DIR=$withval
   elif test -f "$withval"; then
      # Path includes "/RePlAce";  remove it
      QFLOW_REPLACE_DIR=${withval%/RePlAce}
   else
      QFLOW_REPLACE_DIR=${PATH}
   fi
   AC_PATH_PROG(QFLOW_REPLACE_PATH, RePlAce, , $QFLOW_REPLACE_DIR)
   AC_PATH_PROG(QFLOW_NTUPLACE3_PATH, ntuplace3, , ${QFLOW_REPLACE_DIR}/../ntuplace)
   AC_PATH_PROG(QFLOW_NTUPLACE4_PATH, ntuplace4h, , ${QFLOW_REPLACE_DIR}/../ntuplace)
], [
   AC_PATH_PROG(QFLOW_REPLACE_PATH, RePlAce, , )
   AC_PATH_PROG(QFLOW_NTUPLACE3_PATH, ntuplace3, , )
   AC_PATH_PROG(QFLOW_NTUPLACE4_PATH, ntuplace4h, , )
])
AC_DEFINE_UNQUOTED(QFLOW_REPLACE_PATH, "$QFLOW_REPLACE_PATH")
dnl NOTE:  The following is based on the current source distribution of RePlAce and
dnl is likely to change.  QFLOW_NTUPLACE_PATH is set to the common prefix "ntuplace"
dnl of the actual tools, currently "ntuplace3" and "ntuplace4h".  Probably better to
dnl write a custom autoconf script for this.
AC_DEFINE_UNQUOTED(QFLOW_NTUPLACE3_PATH, "$QFLOW_NTUPLACE3_PATH")
AC_DEFINE_UNQUOTED(QFLOW_NTUPLACE4_PATH, "$QFLOW_NTUPLACE4_PATH")

dnl Target library location

AC_ARG_WITH(libdir,
[  --with-libdir=DIR			path to qflow runtime files], [
   QFLOW_LIB_DIR=$withval
], [
   QFLOW_LIB_DIR="\${prefix}/share/qflow"
])

AC_ARG_WITH(bindir,
[  --with-bindir=DIR			path to qflow launch script], [
   QFLOW_BIN_DIR=$withval
], [
   QFLOW_BIN_DIR="\${prefix}/bin"
])

# For distributed installs, where the run-time files are installed in a
# place that is a temporary staging area, like DESTDIR, but unlike DESTDIR,
# the prefix is replaced by the destination directory, rather than appended
# to it.
DIST_DIR="\${exec_prefix}"
AC_ARG_WITH(distdir,
[  --with-distdir=DIR       install into location DIR for distribution], [
  if test "$withval" = "no" -o "$withval" = "NO" ; then
     DIST_DIR="\${exec_prefix}"
  else
     DIST_DIR=${withval}
  fi
], )

dnl AC_SUBST(QFLOW_YOSYS_PATH)
dnl AC_SUBST(QFLOW_GRAYWOLF_PATH)
dnl AC_SUBST(QFLOW_REPLACE_PATH)
dnl AC_SUBST(QFLOW_NTUPLACE3_PATH)
dnl AC_SUBST(QFLOW_NTUPLACE4_PATH)
dnl AC_SUBST(QFLOW_QROUTER_PATH)
dnl AC_SUBST(QFLOW_MAGIC_PATH)
dnl AC_SUBST(QFLOW_NETGEN_PATH)
dnl AC_SUBST(QFLOW_OPENTIMER_PATH)
dnl AC_SUBST(QFLOW_OPENSTA_PATH)

AC_SUBST(QFLOW_BIN_DIR)
AC_SUBST(QFLOW_LIB_DIR)

AC_SUBST(TCLSH_PATH)
AC_SUBST(HAVE_PYTHON3)

AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(LD)
AC_SUBST(STDLIBS)

AC_SUBST(DIST_DIR)

if test "x${ac_cv_path_QFLOW_YOSYS_PATH}" == "x"; then
   HAVE_YOSYS=0
else
   HAVE_YOSYS=1
fi

AC_SUBST(HAVE_YOSYS)

if test "x${ac_cv_path_QFLOW_MAGIC_PATH}" == "x"; then
   HAVE_MAGIC=0
else
   HAVE_MAGIC=1
fi

AC_SUBST(HAVE_MAGIC)

if test "x${ac_cv_path_QFLOW_NETGEN_PATH}" == "x"; then
   HAVE_NETGEN=0
else
   HAVE_NETGEN=1
fi

AC_SUBST(HAVE_NETGEN)

if test "x${ac_cv_path_QFLOW_OPENTIMER_PATH}" == "x"; then
   HAVE_OPENTIMER=0
else
   HAVE_OPENTIMER=1
fi

AC_SUBST(HAVE_OPENTIMER)

if test "x${ac_cv_path_QFLOW_OPENSTA_PATH}" == "x"; then
   HAVE_OPENSTA=0
else
   HAVE_OPENSTA=1
fi

AC_SUBST(HAVE_OPENSTA)

if test "x${ac_cv_path_QFLOW_GRAYWOLF_PATH}" == "x"; then
   HAVE_GRAYWOLF=0
else
   HAVE_GRAYWOLF=1
fi

AC_SUBST(HAVE_GRAYWOLF)

if test "x${ac_cv_path_QFLOW_REPLACE_PATH}" == "x"; then
   HAVE_REPLACE=0
else
   HAVE_REPLACE=1
fi

AC_SUBST(HAVE_REPLACE)

if test "x${ac_cv_path_QFLOW_QROUTER_PATH}" == "x"; then
   HAVE_QROUTER=0
else
   HAVE_QROUTER=1
fi

AC_SUBST(HAVE_QROUTER)

AC_OUTPUT(Makefile scripts/Makefile src/Makefile tech/Makefile tech/osu050/Makefile tech/osu035/Makefile tech/osu035_redm4/Makefile tech/osu018/Makefile tech/gscl45nm/Makefile)

echo ""
echo "Configuration results:"
echo "----------------------------------------------------"
echo ""

FATAL=0
WARN=0
if test "x${ac_cv_path_QFLOW_YOSYS_PATH}" == "x"; then
   FATAL=1
   echo "ERROR: yosys not found.  Use --with-yosys=<DIR>"
else
   echo "Using yosys verilog synthesis tool at: ${ac_cv_path_QFLOW_YOSYS_PATH}"
fi

# Make sure one placement tool exists
if test "x${ac_cv_path_QFLOW_GRAYWOLF_PATH}" == "x" -a "x${ac_cv_path_QFLOW_REPLACE_PATH}" == "x"; then
   FATAL=1
   echo "ERROR: No placement tool found.  Need either graywolf or RePlAce."
fi

if test "x${ac_cv_path_QFLOW_GRAYWOLF_PATH}" == "x"; then
   echo "GrayWolf not found.  Use --with-graywolf=<DIR> (optional)"
else
   echo "Using graywolf placement tool at: ${ac_cv_path_QFLOW_GRAYWOLF_PATH}"
fi

if test "x${ac_cv_path_QFLOW_REPLACE_PATH}" == "x"; then
   echo "RePlAce not found.  Use --with-replace=<DIR> (optional)"
else
   echo "Using RePlAce placement tool at: ${ac_cv_path_QFLOW_REPLACE_PATH}"
fi

if test "x${ac_cv_path_QFLOW_QROUTER_PATH}" == "x"; then
   echo "ERROR: qrouter not found.  Use --with-qrouter=<DIR>"
   FATAL=1
else
   echo "Using qrouter detail route tool at: ${ac_cv_path_QFLOW_QROUTER_PATH}"
fi

if test "x${ac_cv_path_QFLOW_MAGIC_PATH}" == "x"; then
   WARN=1
   echo "WARNING: Magic 8.X layout tool not found.  Use --with-magic=<DIR>"
else
   echo "Using Magic layout tool at: ${ac_cv_path_QFLOW_MAGIC_PATH}"
fi

if test "x${ac_cv_path_QFLOW_NETGEN_PATH}" == "x"; then
   WARN=1
   echo "WARNING: Netgen LVS tool not found.  Use --with-netgen=<DIR>"
else
   echo "Using Netgen LVS tool at: ${ac_cv_path_QFLOW_NETGEN_PATH}"
fi

echo "Using Vesta STA tool (internal)"

if test "x${ac_cv_path_QFLOW_OPENTIMER_PATH}" == "x"; then
   echo "OpenTimer not found.  Use --with-opentimer=<DIR> (optional)"
else
   echo "Using OpenTimer static timing analysys tool at: ${ac_cv_path_QFLOW_OPENTIMER_PATH}"
fi

if test "x${ac_cv_path_QFLOW_OPENSTA_PATH}" == "x"; then
   echo "OpenSTA not found.  Use --with-opensta=<DIR> (optional)"
else
   echo "Using OpenSTA static timing analysys tool at: ${ac_cv_path_QFLOW_OPENSTA_PATH}"
fi

if test "x${HAVE_PYTHON3}" == "x"; then
   WARN=1
   echo "No python3 on system, will not install qflow GUI or spi2xspice.py"
fi

echo "----------------------------------------------------"

if test x$WARN = x1; then
   echo "Some tools needed for a complete flow were not found.  This will result in"
   echo "an incomplete synthesis flow."
   echo ""
fi

if test x$FATAL = x1; then
   echo "One or more mandatory tools needed for a basic synthesis flow were not found."
   echo "This will result in an unusable synthesis flow.  Please check the configure"
   echo "options with \"./configure --help\" and ensure that all tools are available"
   echo "to qflow for a complete synthesis flow."
   echo ""
fi

if test x$WARN = x0 -a x$FATAL = x0; then
   echo "All tools needed for complete flow have been found."
   echo "Run \"make\" followed by \"sudo make install\" to install qflow."
   echo ""
fi

echo "----------------------------------------------------"