1 files changed, 103 insertions, 0 deletions
diff --git a/cmake/modules/FindOCaml.cmake b/cmake/modules/FindOCaml.cmake
new file mode 100644
index 0000000..8eba212
--- /dev/null
+++ b/cmake/modules/FindOCaml.cmake
@@ -0,0 +1,103 @@
+# CMake find_package() module for the OCaml language.
+# Assumes ocamlfind will be used for compilation.
+# http://ocaml.org/
+#
+# Example usage:
+#
+# find_package(OCaml)
+#
+# If successful, the following variables will be defined:
+# OCAMLFIND
+# OCAML_VERSION
+# OCAML_STDLIB_PATH
+# HAVE_OCAMLOPT
+#
+# Also provides find_ocamlfind_package() macro.
+#
+# Example usage:
+#
+# find_ocamlfind_package(ctypes)
+#
+# In any case, the following variables are defined:
+#
+# HAVE_OCAML_${pkg}
+#
+# If successful, the following variables will be defined:
+#
+# OCAML_${pkg}_VERSION
+
+include( FindPackageHandleStandardArgs )
+
+find_program(OCAMLFIND
+             NAMES ocamlfind)
+
+if( OCAMLFIND )
+  execute_process(
+    COMMAND ${OCAMLFIND} ocamlc -version
+    OUTPUT_VARIABLE OCAML_VERSION
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  execute_process(
+    COMMAND ${OCAMLFIND} ocamlc -where
+    OUTPUT_VARIABLE OCAML_STDLIB_PATH
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  execute_process(
+    COMMAND ${OCAMLFIND} ocamlc -version
+    OUTPUT_QUIET
+    RESULT_VARIABLE find_ocaml_result)
+  if( find_ocaml_result EQUAL 0 )
+    set(HAVE_OCAMLOPT TRUE)
+  else()
+    set(HAVE_OCAMLOPT FALSE)
+  endif()
+endif()
+
+find_package_handle_standard_args( OCaml DEFAULT_MSG
+  OCAMLFIND
+  OCAML_VERSION
+  OCAML_STDLIB_PATH)
+
+mark_as_advanced(
+  OCAMLFIND)
+
+function(find_ocamlfind_package pkg)
+  CMAKE_PARSE_ARGUMENTS(ARG "OPTIONAL" "VERSION" "" ${ARGN})
+
+  execute_process(
+    COMMAND "${OCAMLFIND}" "query" "${pkg}" "-format" "%v"
+    RESULT_VARIABLE result
+    OUTPUT_VARIABLE version
+    ERROR_VARIABLE error
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    ERROR_STRIP_TRAILING_WHITESPACE)
+
+  if( NOT result EQUAL 0 AND NOT ARG_OPTIONAL )
+    message(FATAL_ERROR ${error})
+  endif()
+
+  if( result EQUAL 0 )
+    set(found TRUE)
+  else()
+    set(found FALSE)
+  endif()
+
+  if( found AND ARG_VERSION )
+    if( version VERSION_LESS ARG_VERSION AND ARG_OPTIONAL )
+      # If it's optional and the constraint is not satisfied, pretend
+      # it wasn't found.
+      set(found FALSE)
+    elseif( version VERSION_LESS ARG_VERSION )
+      message(FATAL_ERROR
+              "ocamlfind package ${pkg} should have version ${ARG_VERSION} or newer")
+    endif()
+  endif()
+
+  string(TOUPPER ${pkg} pkg)
+
+  set(HAVE_OCAML_${pkg} ${found}
+      PARENT_SCOPE)
+
+  set(OCAML_${pkg}_VERSION ${version}
+      PARENT_SCOPE)
+endfunction()