1 files changed, 46 insertions, 0 deletions
diff --git a/cmake/build_depends.cmake b/cmake/build_depends.cmake
new file mode 100644
index 00000000..5adaee33
--- /dev/null
+++ b/cmake/build_depends.cmake
@@ -0,0 +1,46 @@
+IF(RPM)
+  MACRO(FIND_DEP V)
+    SET(out ${V}_DEP)
+    IF (NOT DEFINED ${out})
+      IF(EXISTS ${${V}} AND NOT IS_DIRECTORY ${${V}})
+        EXECUTE_PROCESS(COMMAND ${ARGN} RESULT_VARIABLE res OUTPUT_VARIABLE O OUTPUT_STRIP_TRAILING_WHITESPACE)
+      ELSE()
+        SET(res 1)
+      ENDIF()
+      IF (res)
+        SET(O)
+      ELSE()
+        MESSAGE(STATUS "Need ${O} for ${${V}}")
+      ENDIF()
+      SET(${out} ${O} CACHE INTERNAL "Package that contains ${${V}}" FORCE)
+    ENDIF()
+  ENDMACRO()
+
+  # FindBoost.cmake doesn't leave any trace, do it here
+  IF (Boost_INCLUDE_DIR)
+    FIND_FILE(Boost_config_hpp boost/config.hpp PATHS ${Boost_INCLUDE_DIR})
+  ENDIF()
+
+  GET_CMAKE_PROPERTY(ALL_VARS CACHE_VARIABLES)
+  FOREACH (V ${ALL_VARS})
+    GET_PROPERTY(H CACHE ${V} PROPERTY HELPSTRING)
+    IF (H MATCHES "^Have library [^/]" AND ${V})
+      STRING(REGEX REPLACE "^Have library " "" L ${H})
+      SET(V ${L}_LIBRARY)
+      FIND_LIBRARY(${V} ${L})
+    ENDIF()
+    GET_PROPERTY(T CACHE ${V} PROPERTY TYPE)
+    IF ((T STREQUAL FILEPATH OR V MATCHES "^CMAKE_COMMAND$") AND ${V} MATCHES "^/")
+      IF (RPM)
+        FIND_DEP(${V} rpm -q --qf "%{NAME}" -f ${${V}})
+      ELSE() # must be DEB
+        MESSAGE(FATAL_ERROR "Not implemented")
+      ENDIF ()
+      SET(BUILD_DEPS ${BUILD_DEPS} ${${V}_DEP})
+    ENDIF()
+  ENDFOREACH()
+  IF (BUILD_DEPS)
+    LIST(REMOVE_DUPLICATES BUILD_DEPS)
+    STRING(REPLACE ";" " " CPACK_RPM_BUILDREQUIRES "${BUILD_DEPS}")
+  ENDIF()
+ENDIF(RPM)