From 74f5545d0aa0a4ba6856b1280782b2c23185a6e1 Mon Sep 17 00:00:00 2001
From: Julien Schueller <schueller@phimeca.com>
Date: Thu, 28 Nov 2013 10:26:14 +0100
Subject: UseSWIG: set .bundle ext on OSX and no prefix (#12184)

---
 Modules/UseSWIG.cmake | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/Modules/UseSWIG.cmake b/Modules/UseSWIG.cmake
index 28d5ff0..3123aea 100644
--- a/Modules/UseSWIG.cmake
+++ b/Modules/UseSWIG.cmake
@@ -210,8 +210,7 @@ macro(SWIG_ADD_MODULE name language)
         #   Linux  : libLIBRARY.so
         set_target_properties (${SWIG_MODULE_${name}_REAL_NAME} PROPERTIES SUFFIX ".jnilib")
       endif ()
-  endif ()
-  if ("${swig_lowercase_language}" STREQUAL "python")
+  elseif ("${swig_lowercase_language}" STREQUAL "python")
     # this is only needed for the python case where a _modulename.so is generated
     set_target_properties(${SWIG_MODULE_${name}_REAL_NAME} PROPERTIES PREFIX "")
     # Python extension modules on Windows must have the extension ".pyd"
@@ -225,6 +224,17 @@ macro(SWIG_ADD_MODULE name language)
     if(WIN32 AND NOT CYGWIN)
       set_target_properties(${SWIG_MODULE_${name}_REAL_NAME} PROPERTIES SUFFIX ".pyd")
     endif()
+  elseif ("${swig_lowercase_language}" STREQUAL "ruby")
+    # In ruby you want:
+    #      require 'LIBRARY'
+    # then ruby will look for a library whose name is platform dependent, namely
+    #   MacOS  : LIBRARY.bundle
+    #   Windows: LIBRARY.dll
+    #   Linux  : LIBRARY.so
+    set_target_properties (${SWIG_MODULE_${name}_REAL_NAME} PROPERTIES PREFIX "")
+    if (APPLE)
+      set_target_properties (${SWIG_MODULE_${name}_REAL_NAME} PROPERTIES SUFFIX ".bundle")
+    endif ()
   endif ()
 endmacro()
 
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