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| Rev | Author | Line No. | Line | 
|---|---|---|---|
| 14 | pmbaty | 1 | # CMake find_package() module for the OCaml language. | 
        
| 2 | # Assumes ocamlfind will be used for compilation. | 
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| 3 | # http://ocaml.org/ | 
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| 4 | # | 
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| 5 | # Example usage: | 
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| 6 | # | 
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| 7 | # find_package(OCaml) | 
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| 8 | # | 
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| 9 | # If successful, the following variables will be defined: | 
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| 10 | # OCAMLFIND | 
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| 11 | # OCAML_VERSION | 
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| 12 | # OCAML_STDLIB_PATH | 
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| 13 | # HAVE_OCAMLOPT | 
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| 14 | # | 
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| 15 | # Also provides find_ocamlfind_package() macro. | 
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| 16 | # | 
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| 17 | # Example usage: | 
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| 18 | # | 
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| 19 | # find_ocamlfind_package(ctypes) | 
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| 20 | # | 
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| 21 | # In any case, the following variables are defined: | 
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| 22 | # | 
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| 23 | # HAVE_OCAML_${pkg} | 
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| 24 | # | 
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| 25 | # If successful, the following variables will be defined: | 
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| 26 | # | 
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| 27 | # OCAML_${pkg}_VERSION | 
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| 28 | |||
| 29 | include( FindPackageHandleStandardArgs )  | 
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| 30 | |||
| 31 | find_program(OCAMLFIND  | 
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| 32 |              NAMES ocamlfind) | 
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| 33 | |||
| 34 | if( OCAMLFIND )  | 
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| 35 | execute_process(  | 
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| 36 | COMMAND ${OCAMLFIND} ocamlc -version  | 
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| 37 | OUTPUT_VARIABLE OCAML_VERSION  | 
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| 38 |     OUTPUT_STRIP_TRAILING_WHITESPACE) | 
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| 39 | |||
| 40 | execute_process(  | 
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| 41 | COMMAND ${OCAMLFIND} ocamlc -where  | 
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| 42 | OUTPUT_VARIABLE OCAML_STDLIB_PATH  | 
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| 43 |     OUTPUT_STRIP_TRAILING_WHITESPACE) | 
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| 44 | |||
| 45 | execute_process(  | 
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| 46 | COMMAND ${OCAMLFIND} ocamlc -version  | 
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| 47 | OUTPUT_QUIET  | 
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| 48 |     RESULT_VARIABLE find_ocaml_result) | 
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| 49 | if( find_ocaml_result EQUAL 0 )  | 
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| 50 | set(HAVE_OCAMLOPT TRUE)  | 
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| 51 | else()  | 
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| 52 | set(HAVE_OCAMLOPT FALSE)  | 
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| 53 | endif()  | 
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| 54 | endif()  | 
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| 55 | |||
| 56 | find_package_handle_standard_args( OCaml DEFAULT_MSG | 
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| 57 | OCAMLFIND  | 
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| 58 | OCAML_VERSION  | 
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| 59 |   OCAML_STDLIB_PATH) | 
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| 60 | |||
| 61 | mark_as_advanced(  | 
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| 62 |   OCAMLFIND) | 
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| 63 | |||
| 64 | function(find_ocamlfind_package pkg)  | 
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| 65 | CMAKE_PARSE_ARGUMENTS(ARG "OPTIONAL" "VERSION" "" ${ARGN})  | 
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| 66 | |||
| 67 | execute_process(  | 
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| 68 | COMMAND "${OCAMLFIND}" "query" "${pkg}" "-format" "%v"  | 
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| 69 | RESULT_VARIABLE result  | 
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| 70 | OUTPUT_VARIABLE version  | 
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| 71 | ERROR_VARIABLE error  | 
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| 72 | OUTPUT_STRIP_TRAILING_WHITESPACE  | 
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| 73 |     ERROR_STRIP_TRAILING_WHITESPACE) | 
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| 74 | |||
| 75 | if( NOT result EQUAL 0 AND NOT ARG_OPTIONAL )  | 
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| 76 | message(FATAL_ERROR ${error})  | 
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| 77 | endif()  | 
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| 78 | |||
| 79 | if( result EQUAL 0 )  | 
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| 80 | set(found TRUE)  | 
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| 81 | else()  | 
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| 82 | set(found FALSE)  | 
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| 83 | endif()  | 
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| 84 | |||
| 85 | if( found AND ARG_VERSION )  | 
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| 86 | if( version VERSION_LESS ARG_VERSION AND ARG_OPTIONAL )  | 
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| 87 |       # If it's optional and the constraint is not satisfied, pretend | 
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| 88 |       # it wasn't found. | 
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| 89 | set(found FALSE)  | 
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| 90 | elseif( version VERSION_LESS ARG_VERSION )  | 
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| 91 | message(FATAL_ERROR  | 
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| 92 | "ocamlfind package ${pkg} should have version ${ARG_VERSION} or newer")  | 
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| 93 | endif()  | 
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| 94 | endif()  | 
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| 95 | |||
| 96 | string(TOUPPER ${pkg} pkg)  | 
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| 97 | |||
| 98 | set(HAVE_OCAML_${pkg} ${found}  | 
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| 99 | PARENT_SCOPE)  | 
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| 100 | |||
| 101 | set(OCAML_${pkg}_VERSION ${version}  | 
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| 102 | PARENT_SCOPE)  | 
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| 103 | endfunction()  |