travis: Re-add libglew dependency
Needed by engine in C port.
# Based on CheckLibraryExists.cmake from CMake
#=============================================================================
# Copyright 2002-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
macro(CHECK_HASKELL_MODULE_EXISTS MODULE FUNCTION PARAMCOUNT LIBRARY)
set(VARIABLE "HS_MODULE_${LIBRARY}_${FUNCTION}")
if(${VARIABLE} MATCHES ^${VARIABLE}$)
message(STATUS "Looking for ${FUNCTION} in ${MODULE}")
set(PARAMETERS "")
if(PARAMCOUNT GREATER 0)
foreach(__TRASH__ RANGE 1 ${PARAMCOUNT})
set(PARAMETERS "${PARAMETERS} undefined")
endforeach()
endif()
set(PARAMETERS "")
execute_process(COMMAND ${GHC_EXECUTABLE}
"-DMODULE=${MODULE}"
"-DFUNCTION=${FUNCTION}"
"-DPARAMETERS=${PARAMETERS}"
-cpp
-c "${CMAKE_MODULE_PATH}/checkModule.hs"
RESULT_VARIABLE COMMAND_RESULT
ERROR_VARIABLE BUILD_ERROR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(${COMMAND_RESULT} EQUAL 0)
message(STATUS "Looking for ${FUNCTION} in ${MODULE} - found")
set(${VARIABLE} 1 CACHE INTERNAL "Have module ${MODULE}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if the function ${FUNCTION} exists in the ${MODULE} passed\n\n")
else()
message(STATUS "Looking for ${FUNCTION} in ${MODULE} - not found")
set(${VARIABLE} "" CACHE INTERNAL "Have module ${MODULE}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if the function ${FUNCTION} exists in the ${MODULE} "
"failed with the following output:\n"
"${BUILD_ERROR}\n\n")
message(FATAL_ERROR "Haskell library '${LIBRARY}' required")
endif()
endif()
endmacro()