23 lines
852 B
Bash
23 lines
852 B
Bash
#!/bin/bash
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# usage: . addlibpath.sh new_path
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# this script requires a normalized $LD_LIBRARY_PATH:
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# 1. each path except the last one must be followed by ":" without any whitespace;
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# 2. each path is NOT finished by "/"
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# besides, the input parameter $1 is NOT finished by "/".
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# Purpose of the normalization is to match $ENV{NEWPATH}(:\|$)
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# it must be explicitly exported because Perl only add environment variables to %ENV, not those shell variables:
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export NEWPATH=$1
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# on windows, we must use /usr/bin/perl from cygwin, because ActivePerl doesn't work on following line:
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if [ 'no' == `/usr/bin/perl -e 'if ($ENV{LD_LIBRARY_PATH} =~ m|$ENV{NEWPATH}(:\|$)|) {exec "echo yes"} else {exec "echo no"}'` ]
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then
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if [ -z ${LD_LIBRARY_PATH} ]
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then
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export LD_LIBRARY_PATH=$1
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else
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export LD_LIBRARY_PATH=$1:${LD_LIBRARY_PATH}
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fi
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fi
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