<!-- manual page source format generated by PolyglotMan v3.2, --> <!-- available at http://polyglotman.sourceforge.net/ --> <html> <head> <title>IM_VIPSHOME(3) manual page</title> </head> <body bgcolor='white'> <a href='#toc'>Table of Contents</a><p> <h2><a name='sect0' href='#toc0'>Name</a></h2> im_guess_prefix, im_guess_libdir - try to guess install directory <h2><a name='sect1' href='#toc1'>Synopsis</a></h2> <b>#include <vips/vips.h></b> <p> <b>const char *im_guess_prefix( const char *argv0,</b> <b>const char *env_name )</b> <p> <b>const char *im_guess_libdir( const char *argv0,</b> <b>const char *env_name )</b> <p> <h2><a name='sect2' href='#toc2'>Description</a></h2> <a href='im_guess_prefix.3.html'><b>im_guess_prefix(3)</a> </b> tries to guess the install directory. You should pass in the value of argv[0] (the name your program was run as) as a clue to help it out, plus the name of the environment variable you let the user override your package install area with (eg. "VIPSHOME"). <p> On success, <a href='im_guess_prefix.3.html'><b>im_guess_prefix(3)</a> </b> returns the prefix it discovered, and as a side effect, sets the environment variable (if it’s not set). <p> <a href='im_guess_prefix.3.html'><b>im_guess_prefix(3)</a> </b> is useful for programs in the VIPS distribution and contrib which need to be able to find data files. <p> Don’t free the return string! <p> <a href='im_guess_libdir.3.html'><b>im_guess_libdir(3)</a> </b> works exactly as <a href='im_guess_prefix.3.html'><b>im_guess_prefix(3)</a> </b> but, if vips has not been moved since configure, returns the libdir configure setting. If vips has been moved, it returns prefix/lib. <p> <h2><a name='sect3' href='#toc3'>Return Value</a></h2> The function returns NULL on failure. <p> <hr><p> <a name='toc'><b>Table of Contents</b></a><p> <ul> <li><a name='toc0' href='#sect0'>Name</a></li> <li><a name='toc1' href='#sect1'>Synopsis</a></li> <li><a name='toc2' href='#sect2'>Description</a></li> <li><a name='toc3' href='#sect3'>Return Value</a></li> </ul> </body> </html>