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/* (C) 1998-2000 Red Hat, Inc. -- Licensing details are in the COPYING
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file accompanying popt source distributions, available from
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ftp://ftp.rpm.org/pub/rpm/dist. */
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* Return absolute path to executable by searching PATH.
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* @param argv0 name of executable
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* @return (malloc'd) absolute path to executable (or NULL)
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/*@null@*/ const char * findProgramPath(/*@null@*/ const char * argv0)