#! /bin/sh
# This script has been known to work with pfe 0.33.73w, Linux Mint 19.3,
# and gcc 7.4.0.  --dnw 03-Feb-2021

# Compile, link, and install the pfe loadable module libmpfr-pfe.so from
# source files in the current directory, libmpfr-pfe.c and
# libmpfr-pfe-dll.c.

### PATHS

MODULE=libmpfr-pfe

# Should be a version that avoids LLVM or CLANG.
CC=gcc
# CC=/usr/local/bin/gcc

CFLAGS="-m64 -DABI_64"
# CFLAGS="-m32 -DABI_32"

INSTALL=install
# INSTALL=/usr/bin/install

PREFIX=/usr/local
# PREFIX=$HOME

# These directories must already exist.
INCLUDEDIR=$PREFIX/include
LIBDIR=$PREFIX/lib/pfe-forth

### COMPILE

$CC -I. -I$INCLUDEDIR -DHAVE_CONFIG_H \
  -DNDEBUG -O3 -Wall $CFLAGS -DUNROLL_NEXT \
  -Wwrite-strings -Wstrict-prototypes \
  -fno-strict-aliasing -fomit-frame-pointer -D_OMIT_FRAME_POINTER \
   -c $MODULE.c -fPIC -DPIC -o $MODULE.o

$CC -I. -I$INCLUDEDIR -DHAVE_CONFIG_H \
  -DNDEBUG -O3 -Wall $CFLAGS -DUNROLL_NEXT \
  -Wwrite-strings -Wstrict-prototypes \
  -fno-strict-aliasing -fomit-frame-pointer -D_OMIT_FRAME_POINTER \
  -c $MODULE-dll.c -fPIC -DPIC -o $MODULE-dll.o

### LINK

$CC -shared $MODULE-dll.o $MODULE.o -ldl -lm \
  -L$PREFIX/lib -lgmp -lmpfr -Wl,-soname -Wl,$MODULE.so -o $MODULE.so

### INSTALL

# cp -p $MODULE.so $LIBDIR
$INSTALL -p $MODULE.so $LIBDIR