File: SeqAnContribs.cmake

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# ============================================================================
#                  SeqAn - The Library for Sequence Analysis
# ============================================================================
# Copyright (c) 2006-2018, Knut Reinert, FU Berlin
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of Knut Reinert or the FU Berlin nor the names of
#       its contributors may be used to endorse or promote products derived
#       from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL KNUT REINERT OR THE FU BERLIN BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.
# ============================================================================
# Author: Manuel Holtgrewe <manuel.holtgrewe@fu-berlin.de>
# ============================================================================
# This CMake file is included by the root CMakeLists.txt to look for
# installed SeqAn contribs on the WIN32 platform.
# ============================================================================

if (WIN32)
# For all contrib versions...
foreach (_SEQAN_CONTRIB_VERSION D20170601 D20160115)
    set (_SEQAN_CONTRIB_DIR "seqan-contrib-${_SEQAN_CONTRIB_VERSION}")

    # Determine architecture for the precompiled contribs.
    if (CMAKE_SIZEOF_VOID_P EQUAL 8)
        set (CONTRIB_ARCH "x64")
    else ()
        set (CONTRIB_ARCH "x86")
    endif ()

    # Try to figure out where the user installed the contrib.  We expect
    # it to be either in C:\, or one of the Program Files dirs.
    #
    # First, look into Program Files on 64 bit.
    # Then look into C:\\ and finally check special environment variable.

    set(_paths "$ENV{ProgramW6432}" "$ENV{ProgramFiles}" "C:" "$ENV{SEQAN_WIN_CONTRIB_DIRECTORY}")

    foreach(path ${_paths})
        set(path "${path}/${_SEQAN_CONTRIB_DIR}-${CONTRIB_ARCH}")
        # message("Path is ${path}")
        if (IS_DIRECTORY "${path}")
            set (SEQAN_CONTRIB_BASE "${path}")
            break ()
        endif ()
    endforeach ()

	# Debug help.
    # if (NOT DEFINED SEQAN_CONTRIB_BASE)
    #     message("SEQAN_CONTRIB_BASE is undefined!")
    # else (NOT DEFINED SEQAN_CONTRIB_BASE)
    #   	message("SEQAN_CONTRIB_BASE is ${SEQAN_CONTRIB_BASE}")
    # endif (NOT DEFINED SEQAN_CONTRIB_BASE)

    # Try to figure out the generator.
    if (IS_DIRECTORY ${SEQAN_CONTRIB_BASE})
        if (CMAKE_GENERATOR MATCHES "^Visual Studio .*")
            string (REGEX REPLACE "^Visual Studio ([0-9]+).*$" "\\1" SEQAN_CONTRIB_VARIANT ${CMAKE_GENERATOR})
            set (SEQAN_CONTRIB_VARIANT "vs${SEQAN_CONTRIB_VARIANT}")
        elseif (MINGW)
            set (SEQAN_CONTRIB_VARIANT mingw)
        endif (CMAKE_GENERATOR MATCHES "^Visual Studio .*")

        #message(STATUS "SEQAN_CONTRIB_BASE    is ${SEQAN_CONTRIB_BASE}")
        #message(STATUS "SEQAN_CONTRIB_VARIANT is ${SEQAN_CONTRIB_VARIANT}")

        # Compose contrib path.
        set(SEQAN_CONTRIB_PATH "${SEQAN_CONTRIB_BASE}/${SEQAN_CONTRIB_VARIANT}")

        # Extend CMAKE_PREFIX_PATH.
        if (IS_DIRECTORY ${SEQAN_CONTRIB_PATH})
            set (CMAKE_PREFIX_PATH ${SEQAN_CONTRIB_PATH} ${CMAKE_PREFIX_PATH})
        endif (IS_DIRECTORY ${SEQAN_CONTRIB_PATH})
    endif (IS_DIRECTORY ${SEQAN_CONTRIB_BASE})

    message(STATUS "CMAKE_PREFIX_PATH is \"${CMAKE_PREFIX_PATH}\".")

    # Break out if contribs could be found.
    if (DEFINED SEQAN_CONTRIB_BASE)
        break ()  # found contribs at current path
    endif (DEFINED SEQAN_CONTRIB_BASE)

endforeach ()  # all contrib versions.
endif (WIN32)