On Tue, 2010-01-05 at 19:59 +0100, Ralf Wildenhues wrote: > Hello Philip, > > * Philip Herron wrote on Tue, Jan 05, 2010 at 01:27:32AM CET: > > I am having trouble finding some macro or something for my > > configure.ac to for zlib support. I found this so far: > > http://ac-archive.sourceforge.net/ac-archive/check_zlib.html > > But this simply adds the option AC_ARG_WITH so zlib is optional but my > > work needs zlib now so its a little annoying to always have to > > ./configure --with-zlib... > > > > Not sure if there is a cool trick to simply always turn it on but i am > > sure there is a better setup for this out there since zlib is so > > widely used! > > I'm not sure I understand why you are looking for something > zlib-specific at all. If you need to check for a library, you can use > AC_CHECK_LIB or one of its sister macros, and you can use > AC_CHECK_HEADERS for header files. Your users can pass CPPFLAGS=-I... > and LDFLAGS=-L... to configure if the files are to be found in > nonstandard locations. gnulib also has the module havelib to make this > a bit more generic and help with run paths. > > Hope that helps. Otherwise, please be more specific in what doesn't > work for you (show code, specify needed semantics, etc). > > Cheers, > Ralf Yeah good point, feel silly now i think i was up far too late... 06:10! I think i was mainly confused since i could seem to find the linking strings for zlib, though i realised it is everywhere '-lz' anyways i simply use: AC_CHECK_LIB([z], [gzread], , [AC_MSG_ERROR([zlib not found, see http://www.zlib.net])]) Thanks guys --Phil
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