1 files changed, 81 insertions, 0 deletions
diff --git a/cmake/modules/FindPerl.cmake b/cmake/modules/FindPerl.cmake
new file mode 100644
index 0000000000..479b7197b5
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+++ b/cmake/modules/FindPerl.cmake
@@ -0,0 +1,81 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+# This code was copied from
+# http://cmake.org/gitweb?p=cmake.git;a=blob_plain;f=Modules/FindPerl.cmake;hb=HEAD
+# and modified so as to be compatible with our packaged FindCygwin.cmake
+
+#.rst:
+# FindPerl
+# --------
+#
+# Find perl
+#
+# this module looks for Perl
+#
+# ::
+#
+#   PERL_EXECUTABLE     - the full path to perl
+#   PERL_FOUND          - If false, don't attempt to use perl.
+#   PERL_VERSION_STRING - version of perl found (since CMake 2.8.8)
+
+include(${CMAKE_CURRENT_LIST_DIR}/FindCygwin.cmake)
+
+set(PERL_POSSIBLE_BIN_PATHS
+  ${CYGWIN_INSTALL_PATH}/bin
+  )
+
+if(WIN32)
+  get_filename_component(
+    ActivePerl_CurrentVersion
+    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\ActiveState\\ActivePerl;CurrentVersion]"
+    NAME)
+  set(PERL_POSSIBLE_BIN_PATHS ${PERL_POSSIBLE_BIN_PATHS}
+    "C:/Perl/bin"
+    [HKEY_LOCAL_MACHINE\\SOFTWARE\\ActiveState\\ActivePerl\\${ActivePerl_CurrentVersion}]/bin
+    )
+endif()
+
+find_program(PERL_EXECUTABLE
+  NAMES perl
+  PATHS ${PERL_POSSIBLE_BIN_PATHS}
+  )
+
+if(PERL_EXECUTABLE)
+  ### PERL_VERSION
+  execute_process(
+    COMMAND
+      ${PERL_EXECUTABLE} -V:version
+      OUTPUT_VARIABLE
+        PERL_VERSION_OUTPUT_VARIABLE
+      RESULT_VARIABLE
+        PERL_VERSION_RESULT_VARIABLE
+      ERROR_QUIET
+      OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+  if(NOT PERL_VERSION_RESULT_VARIABLE AND NOT PERL_VERSION_OUTPUT_VARIABLE MATCHES "^version='UNKNOWN'")
+    string(REGEX REPLACE "version='([^']+)'.*" "\\1" PERL_VERSION_STRING ${PERL_VERSION_OUTPUT_VARIABLE})
+  else()
+    execute_process(
+      COMMAND ${PERL_EXECUTABLE} -v
+      OUTPUT_VARIABLE PERL_VERSION_OUTPUT_VARIABLE
+      RESULT_VARIABLE PERL_VERSION_RESULT_VARIABLE
+      ERROR_QUIET
+      OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    if(NOT PERL_VERSION_RESULT_VARIABLE AND PERL_VERSION_OUTPUT_VARIABLE MATCHES "This is perl.*[ \\(]v([0-9\\._]+)[ \\)]")
+      set(PERL_VERSION_STRING "${CMAKE_MATCH_1}")
+    elseif(NOT PERL_VERSION_RESULT_VARIABLE AND PERL_VERSION_OUTPUT_VARIABLE MATCHES "This is perl, version ([0-9\\._]+) +")
+      set(PERL_VERSION_STRING "${CMAKE_MATCH_1}")
+    endif()
+  endif()
+endif()
+
+# Deprecated settings for compatibility with CMake1.4
+set(PERL ${PERL_EXECUTABLE})
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Perl
+                                  REQUIRED_VARS PERL_EXECUTABLE
+                                  VERSION_VAR PERL_VERSION_STRING)
+
+mark_as_advanced(PERL_EXECUTABLE)