30 lines
865 B
Groff
30 lines
865 B
Groff
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.TH IM_VIPSHOME 3 "8 March 2001"
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.SH NAME
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im_guess_prefix \- try to guess install directory
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.SH SYNOPSIS
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.B #include <vips/vips.h>
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.B const char *im_guess_prefix( const char *argv0,
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.B const char *env_name )
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.SH DESCRIPTION
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.B im_guess_prefix(3)
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tries to guess the install directory. You should pass in the value of
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argv[0] (the name your program was run as) as a clue to help it out, plus
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the name of the environment variable you let the user override your package
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install area with (eg. "VIPSHOME").
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On success,
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.B im_guess_prefix(3)
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returns the prefix it discovered, and as a side effect, sets the environment
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variable (if it's not set).
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.B im_guess_prefix(3)
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is useful for programs in the VIPS distribution and contrib which need to be
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able to find data files.
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Don't free the return string!
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.SH RETURN VALUE
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The function returns NULL on failure.
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