configure.win

#
# png pixmap support
# test zlib and libpng libraries are available 
#
echo "  configure.win32..."

# --- win32 base configuration -----------------------------------------------

CPPFLAGS=
CXXFLAGS="-fno-exceptions -fno-rtti"
LIBS="-lgdi32 -lopengl32 -lglu32"
LOCAL_SOFT=`R CMD config LOCAL_SOFT`

# --- for pre 2.9.0 compatibility

if test -z "$R_PACKAGE_DIR" ; then
     R_PACKAGE_DIR=${DPKG}
fi

# --- libpng -----------------------------------------------------------------

echo -n "  checking for zlib..."
if [ -e "${LOCAL_SOFT}/lib${R_ARCH_BIN}/libz.a" ]; then
   CPPFLAGS="${CPPFLAGS} "
   LIBS="$LIBS -lz"
   havezlib=yes   
elif [ -e "${R_HOME}/bin${R_ARCH_BIN}/Rzlib.dll" ]; then
   CPPFLAGS="${CPPFLAGS} -I${R_HOME}/include "
   LIBS="$LIBS -L${R_HOME}/bin${R_ARCH_BIN} -lRzlib "
   havezlib=yes
elif [ -e "${R_HOME}/src/extra/zlib/libz.a" ]; then
   CPPFLAGS="${CPPFLAGS} -I${R_HOME}/src/extra/zlib "
   LIBS="$LIBS -L${R_HOME}/src/extra/zlib -lz"
   havezlib=yes
else
   havezlib=no
fi
echo ${havezlib}

if [ "${havezlib}" = "yes" ]; then
  echo -n "  checking for libpng..."
  if [ -n "${HAVE_PNG}" ]; then
    echo "yes"
    CPPFLAGS="${CPPFLAGS} -DHAVE_PNG_H "
    LIBS="-lpng $LIBS "
  elif [ -e "${LOCAL_SOFT}/lib${R_ARCH_BIN}/libpng.a" ]; then
    echo "yes"
    CPPFLAGS="${CPPFLAGS} -DHAVE_PNG_H "
    LIBS="-lpng $LIBS "  
  elif [ -e "${R_HOME}/src/gnuwin32/bitmap/libpng/libpng.a" ]; then
    echo "yes"
    CPPFLAGS="${CPPFLAGS} -DHAVE_PNG_H -I${R_HOME}/src/gnuwin32/bitmap/libpng "
    LIBS="-L${R_HOME}/src/gnuwin32/bitmap/libpng -lpng $LIBS "
  else
    echo "no"
  fi
else
  echo "  libpng requires zlib, so not installed."
fi

# --- freetype and ftgl ------------------------------------------------------

if [ "${havezlib}" = "yes" ]; then
  echo -n "  checking for freetype..."
  if [ -n "$LIB_FREETYPE" ]; then
    echo "yes, LIB_FREETYPE=$LIB_FREETYPE" 
    mkdir -p $R_PACKAGE_DIR/libs${R_ARCH}
    cp $LIB_FREETYPE/bin${R_ARCH_BIN}/freetype6.dll $R_PACKAGE_DIR/libs${R_ARCH}
    if [ -e "${R_HOME}/bin${R_ARCH_BIN}/Rzlib.dll" ]; then
      cp ${R_HOME}/bin${R_ARCH_BIN}/Rzlib.dll $R_PACKAGE_DIR/libs${R_ARCH}/zlib1.dll
    else
      echo "  Note:  freetype may require zlib1.dll"
    fi
    CPPFLAGS="${CPPFLAGS} -Iext/ftgl -I${LIB_FREETYPE}/include -I${LIB_FREETYPE}/include/freetype2 -DHAVE_FREETYPE"
    LIBS="-L$R_PACKAGE_DIR/libs${R_ARCH} -lfreetype6 $LIBS "
  else
    echo "no, LIB_FREETYPE undefined"
  fi
else
  echo "  freetype requires zlib, so not installed."
fi

# --- dump configuration -----------------------------------------------------
# Debugging code removed -- cat was hanging on WinBuilder
#cat <<EOF
#---------- win32 configuration: ----------
#PKG_CPPFLAGS = $CPPFLAGS
#PKG_CXXFLAGS = $CXXFLAGS
#PKG_LIBS     = $LIBS
#------------------------------------------  
#EOF

# --- output Makevars --------------------------------------------------------

sed \
-e "s^@CPPFLAGS@^$CPPFLAGS^" \
-e "s^@CXXFLAGS@^$CXXFLAGS^" \
-e "s^@LIBS@^$LIBS^" \
-e "s^@BUILD_AGL_TRUE@^#^" \
-e "s^@C_VISIBILITY@^#^" \
src/Makevars.in >src/Makevars