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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.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 ${PERL_EXECUTABLE})
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Perl
REQUIRED_VARS PERL_EXECUTABLE
VERSION_VAR PERL_VERSION_STRING)
mark_as_advanced(PERL_EXECUTABLE)
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