Adapting the findplugin script from the C library.

cxx4/findplugin.in

@@ -0,0 +1,107 @@
+#!/bin/bash
+
+# Define a function that attempts to locate a
+# plugin with a given canonical name.
+# Assumptions:
+#   1. plugins is a top-level directory
+# Inputs:
+#   $1 is the canonical name
+#   $2 is 1 if we are running under cmake
+#   $3 is 1 if we are running using Visual Studio, blank otherwise
+#   $4 is the build type; only used if $3 is 1
+# Outputs:
+#   return code is 0 is success, 1 if failed
+#   Variable HDF5_PLUGIN_LIB is set to the library file name
+#   Variable HDF5_PLUGIN_PATH is setthe absolute path to the
+#                    directory containing the plugin library file
+# Local variables are prefixed with FP_
+#
+# Note: we assume that the use of the CMAKE_BUILD_TYPE
+# is obviated by setting the LIBRARY_OUTPUT_DIRECTORY
+# variables: see hdf5plugins/CMakeLists.txt
+
+findplugin() {
+
+FP_NAME="$1"
+
+# Figure out the compiler (some values from ./configure)
+FP_ISCMAKE=@ISCMAKE@
+FP_ISMSVC=@MSVC@
+
+# And topsrcdir
+topbuilddir='@abs_top_builddir@'
+
+# Are we operating under OS-X? (test using uname)
+FP_OS=`uname | cut -d '_'  -f 1`
+if test "x$FP_OS" = xDarwin ; then FP_ISOSX=1; fi
+
+# Are we operating under CYGWIN? (test using uname)
+FP_OS=`uname | cut -d '_'  -f 1`
+if test "x$FP_OS" = xCYGWIN ; then FP_ISCYGWIN=1; fi
+
+FP_PLUGINS="$topbuilddir/plugins"
+
+FP_PLUGIN_LIB=
+FP_PLUGIN_PATH=
+
+# Figure out the plugin file name
+# Test for visual studio before cygwin since both might be true
+if test "x$FP_ISMSVC" != x ; then
+  FP_PLUGIN_LIB="${FP_NAME}.dll"
+elif test "x$FP_ISCYGWIN" != x ; then
+  FP_PLUGIN_LIB="cyg${FP_NAME}.dll"
+elif test "x$FP_ISOSX" != x ; then
+  FP_PLUGIN_LIB="lib${FP_NAME}.so" # Should this include the version number in the name?
+else # Presumably some form on *nix"
+  FP_PLUGIN_LIB="lib${FP_NAME}.so"
+fi
+
+# Figure out the path to where the lib is stored
+# This can probably be simplified
+# Case 1: Cmake with Visual Studio
+# Do not know where to look for a dylib
+# Case 1: Cmake with Visual Studio
+if test "x$FP_ISCMAKE" != x -a "x${FP_ISMSVC}" != x ; then
+  # Case 1a: ignore the build type directory
+  if test -f "${FP_PLUGINS}/${FP_PLUGIN_LIB}" ; then
+    FP_PLUGIN_PATH="${FP_PLUGINS}"
+  fi
+else # Case 2: automake
+  # Case 2a: look in .libs
+  if test -f "${FP_PLUGINS}/.libs/${FP_PLUGIN_LIB}" ; then
+    FP_PLUGIN_PATH="${FP_PLUGINS}/.libs"
+  else # Case 2: look in FP_PLUGINS directly
+    if test -f "${FP_PLUGINS}/${FP_PLUGIN_LIB}" ; then
+      FP_PLUGIN_PATH="${FP_PLUGINS}"
+    fi
+  fi
+fi
+
+# Verify
+if test "x$FP_PLUGIN_PATH" = x ; then
+  echo "***Fail: Could not locate a usable HDF5_PLUGIN_PATH"
+  return 1
+fi
+if ! test -f "$FP_PLUGIN_PATH/$FP_PLUGIN_LIB" ; then
+  echo "***Fail: Could not locate a usable HDF5_PLUGIN_LIB"
+  return 1
+fi
+
+# If we are operating using both Visual Studio and Cygwin,
+# then we need to convert the FP_PLUGIN_PATH to windows format
+if test "x$FP_ISMSVC" != x -a "x$FP_ISCYGWIN" != x ; then
+FP_PLUGIN_PATH=`cygpath -wl $FP_PLUGIN_PATH`
+fi
+
+# Set the final output variables
+HDF5_PLUGIN_LIB="$FP_PLUGIN_LIB"
+HDF5_PLUGIN_PATH="$FP_PLUGIN_PATH"
+
+return 0
+}
+
+# debug
+if test "x$1" != x ; then
+findplugin
+echo "HDF5_PLUGIN_PATH=|$FP_PLUGIN_PATH|"
+fi