diff -up bullet-2.75/CMakeLists.txt.pkgconfig bullet-2.75/CMakeLists.txt
--- bullet-2.75/CMakeLists.txt.pkgconfig	2009-09-11 14:21:29.000000000 -0500
+++ bullet-2.75/CMakeLists.txt	2010-03-09 17:23:00.937193505 -0600
@@ -70,3 +70,19 @@ IF(BUILD_EXTRAS)
 ENDIF(BUILD_EXTRAS)
 
 SUBDIRS(src)
+
+set (LIB_SUFFIX "" CACHE STRING "Define suffix of directory name (32/64)" )
+set (LIB_DESTINATION "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}" CACHE STRING "Library directory name")
+## the following are directories where stuff will be installed to
+set(INCLUDE_INSTALL_DIR      "${CMAKE_INSTALL_PREFIX}/include/" CACHE PATH "The subdirectory to the header prefix")
+set(PKGCONFIG_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}/pkgconfig/" CACHE STRING "Base directory for pkgconfig files")
+
+if(NOT WIN32)
+  configure_file(${CMAKE_CURRENT_SOURCE_DIR}/bullet.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/bullet.pc @ONLY)
+  install(
+    FILES
+    ${CMAKE_CURRENT_BINARY_DIR}/bullet.pc
+    DESTINATION
+    ${PKGCONFIG_INSTALL_PREFIX})
+endif(NOT WIN32)
+