add package netcdf-cxx4

closes #2150

src/netcdf-cxx4-1-fixes.patch

@@ -0,0 +1,21 @@
+This file is part of MXE. See LICENSE.md for licensing information.
+
+Contains ad hoc patches for cross building.
+
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Tony Theodore <tonyt@logyst.com>
+Date: Sun, 1 Jul 2018 23:03:49 +1000
+Subject: [PATCH 1/1] specify correct *.dll install directory
+
+see: https://github.com/Unidata/netcdf-cxx4/issues/57
+
+diff --git a/cxx4/CMakeLists.txt b/cxx4/CMakeLists.txt
+index 1111111..2222222 100644
+--- a/cxx4/CMakeLists.txt
++++ b/cxx4/CMakeLists.txt
+@@ -44,4 +44,5 @@ INSTALL(
+ INSTALL(
+   TARGETS netcdf-cxx4
+   DESTINATION ${CMAKE_INSTALL_LIBDIR}
++  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+   )

src/netcdf-cxx4.mk

@@ -0,0 +1,25 @@
+# This file is part of MXE. See LICENSE.md for licensing information.
+
+PKG             := netcdf-cxx4
+$(PKG)_WEBSITE  := https://www.unidata.ucar.edu/software/netcdf/
+$(PKG)_DESCR    := NetCDF-CXX4
+$(PKG)_IGNORE   :=
+$(PKG)_VERSION  := 4.3.0
+$(PKG)_CHECKSUM := 25da1c97d7a01bc4cee34121c32909872edd38404589c0427fefa1301743f18f
+$(PKG)_GH_CONF  := Unidata/netcdf-cxx4/releases,v
+$(PKG)_DEPS     := cc netcdf
+
+define $(PKG)_BUILD
+    # build and install the library
+    cd '$(BUILD_DIR)' && $(TARGET)-cmake '$(SOURCE_DIR)' \
+        -DENABLE_DOXYGEN=OFF \
+        -DNCXX_ENABLE_TESTS=OFF
+    $(MAKE) -C '$(BUILD_DIR)' -j '$(JOBS)'
+    $(MAKE) -C '$(BUILD_DIR)' -j 1 install
+
+    # compile test, pkg-config support incomplete
+    '$(TARGET)-g++' \
+        -W -Wall -Werror -ansi -pedantic \
+        '$(SOURCE_DIR)/examples/simple_xy_rd.cpp' -o '$(PREFIX)/$(TARGET)/bin/test-$(PKG).exe' \
+        -l$(PKG) `'$(TARGET)-pkg-config' netcdf jpeg libcurl --cflags --libs` -lportablexdr
+endef