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diff -rupN --no-dereference geos-3.8.1/CMakeLists.txt geos-3.8.1-new/CMakeLists.txt
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--- geos-3.8.1/CMakeLists.txt	2020-01-05 17:44:53.000000000 +0100
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+++ geos-3.8.1-new/CMakeLists.txt	2020-03-11 13:01:25.940873494 +0100
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@@ -281,16 +281,16 @@ configure_file(cmake/geos-config.cmake
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 install(TARGETS geos geos_cxx_flags
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   EXPORT geos-targets
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-  LIBRARY DESTINATION lib NAMELINK_SKIP
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-  ARCHIVE DESTINATION lib
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+  LIBRARY DESTINATION lib${LIB_SUFFIX} NAMELINK_SKIP
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+  ARCHIVE DESTINATION lib${LIB_SUFFIX}
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   RUNTIME DESTINATION bin
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   INCLUDES DESTINATION include
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   )
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 install(TARGETS geos_c
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   EXPORT geos-targets
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-  LIBRARY DESTINATION lib
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-  ARCHIVE DESTINATION lib
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+  LIBRARY DESTINATION lib${LIB_SUFFIX}
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+  ARCHIVE DESTINATION lib${LIB_SUFFIX}
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   RUNTIME DESTINATION bin
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   INCLUDES DESTINATION include
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   )
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@@ -298,12 +298,12 @@ install(TARGETS geos_c
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 install(EXPORT geos-targets
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   FILE geos-targets.cmake
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   NAMESPACE GEOS::
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-  DESTINATION lib/cmake/GEOS)
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+  DESTINATION lib${LIB_SUFFIX}/cmake/GEOS)
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 install(FILES
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   "${CMAKE_CURRENT_BINARY_DIR}/geos-config.cmake"
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   "${CMAKE_CURRENT_BINARY_DIR}/geos-config-version.cmake"
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-  DESTINATION lib/cmake/GEOS)
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+  DESTINATION lib${LIB_SUFFIX}/cmake/GEOS)
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 install(DIRECTORY
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   "${CMAKE_CURRENT_LIST_DIR}/include/geos"
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   "${CMAKE_CURRENT_BINARY_DIR}/include/geos"
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diff -rupN --no-dereference geos-3.8.1/tools/geos-config.cmake geos-3.8.1-new/tools/geos-config.cmake
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--- geos-3.8.1/tools/geos-config.cmake	2019-10-29 23:44:33.000000000 +0100
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+++ geos-3.8.1-new/tools/geos-config.cmake	2020-03-11 13:01:25.940873494 +0100
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@@ -2,7 +2,7 @@
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 prefix=@CMAKE_INSTALL_PREFIX@
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 exec_prefix=@CMAKE_INSTALL_PREFIX@/bin
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-libdir=@CMAKE_INSTALL_PREFIX@/lib
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+libdir=@CMAKE_INSTALL_PREFIX@/lib@LIB_SUFFIX@@LIB_SUFFIX@
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 usage()
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 {
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@@ -44,22 +44,22 @@ case $1 in
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       echo -I@CMAKE_INSTALL_PREFIX@/include
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       ;;
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     --libs)
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-      echo -L@CMAKE_INSTALL_PREFIX@/lib -lgeos-@GEOS_VERSION_MAJOR@
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+      echo -L@CMAKE_INSTALL_PREFIX@/lib@LIB_SUFFIX@ -lgeos-@GEOS_VERSION_MAJOR@
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       ;;
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     --clibs)
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-      echo -L@CMAKE_INSTALL_PREFIX@/lib -lgeos_c
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+      echo -L@CMAKE_INSTALL_PREFIX@/lib@LIB_SUFFIX@ -lgeos_c
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       ;;
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     --cclibs)
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-      echo -L@CMAKE_INSTALL_PREFIX@/lib -lgeos
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+      echo -L@CMAKE_INSTALL_PREFIX@/lib@LIB_SUFFIX@ -lgeos
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       ;;
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     --static-clibs)
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-      echo -L@CMAKE_INSTALL_PREFIX@/lib -lgeos_c -lgeos -lm
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+      echo -L@CMAKE_INSTALL_PREFIX@/lib@LIB_SUFFIX@ -lgeos_c -lgeos -lm
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       ;;
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     --static-cclibs)
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-      echo -L@CMAKE_INSTALL_PREFIX@/lib -lgeos -lm
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+      echo -L@CMAKE_INSTALL_PREFIX@/lib@LIB_SUFFIX@ -lgeos -lm
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       ;;
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     --ldflags)
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-      echo -L@CMAKE_INSTALL_PREFIX@/lib 
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+      echo -L@CMAKE_INSTALL_PREFIX@/lib@LIB_SUFFIX@
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       ;;
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     --includes)
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       echo @CMAKE_INSTALL_PREFIX@/include