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33 lines
999 B
33 lines
999 B
#################################################
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#
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# (C) 2010-2011 Serghei Amelian
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# serghei (DOT) amelian (AT) gmail.com
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#
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# Improvements and feedback are welcome
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#
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# This file is released under GPL >= 2
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#
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#################################################
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# get MAX_CMD_LENGTH
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message( STATUS "Checking for maximum argument length" )
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execute_process(
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COMMAND getconf ARG_MAX
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OUTPUT_VARIABLE MAX_CMD_LENGTH
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RESULT_VARIABLE _result
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OUTPUT_STRIP_TRAILING_WHITESPACE )
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if( _result )
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tde_message_fatal( "Unable to run getconf!\n MAX_CMD_LENGTH cannot be determined." )
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endif()
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math( EXPR MAX_CMD_LENGTH "(${MAX_CMD_LENGTH} / 4) * 3" )
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# Work around a 64 bit bug in the CMake math function above
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if( NOT MAX_CMD_LENGTH )
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execute_process(
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COMMAND getconf ARG_MAX
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OUTPUT_VARIABLE MAX_CMD_LENGTH
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RESULT_VARIABLE _result
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OUTPUT_STRIP_TRAILING_WHITESPACE )
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endif()
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message( STATUS " found ${MAX_CMD_LENGTH}" )
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set( MAX_CMD_LENGTH ${MAX_CMD_LENGTH} CACHE INTERNAL "" FORCE )
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