initial upload

cmake/Linux.md

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+# Linux Helps and Hints
+
+Versions of LaGriT have been developed and tested on our local Linux Ubuntu servers using GNU compilers for many years. 
+This platform is very stable and should not require any special changes to cmake or associated files.
+
+### LaGriT build without Exodus
+
+No known issues.
+
+### LaGriT V3.3.3 build with Exodus
+
+**install-exodus.sh**
+
+Modifications for Exodus install, cmake, build were suggested by Greg at Seacas.
+
+```
+# FIX TPL/netcdf/runcmake.sh and cmake-exodus as described above
+sed -i '69i \         -DENABLE_PLUGINS:BOOL=OFF \\\n         -DENABLE_MULTIFILTERS:BOOL=NO \\\n         -DENABLE_NCZARR_FILTERS:BOOL=OFF \\\n         -DENABLE_TESTS:BOOL=OFF \\' TPL/netcdf/runcmake.sh
+sed -ie 's/DSeacas_EXTRA_LINK_FLAGS=z;dl/DSeacas_EXTRA_LINK_FLAGS=curl;z;dl/g' cmake-exodus
+```
+
+**CMakeLists.txt**
+
+Exodus for LaGriT requires Exodus Fortran libraries, not always installed on systems.
+For this reason we recommend installing Exodus in the local directory "TPLs".
+CMakeLists.txt will look for needed libraries locally rather than system versions that may not work.
+
+```
+set(EXODUS_ROOT "${CMAKE_SOURCE_DIR}/TPLs/seacas")
+set(Exodus_INCLUDE_DIR "${EXODUS_ROOT}/include")
+set(Exodus_LIBRARIES "${EXODUS_ROOT}/lib")
+```
+
+See detailed instructions at https://github.com/sandialabs/seacas
+Seacas Contact Gregory Sjaardema gsjaardema@gmail.com