On Jul 24, 2007, at 12:00 PM, Joao Miguel Ferreira wrote:
On Tue, 2007-07-24 at 00:25 +0200, Ralf Wildenhues wrote:Hello Joao,Hi Ralph,a small side point regarding M4 quotation: instead of * Joao Miguel Ferreira wrote on Mon, Jul 23, 2007 at 10:18:08PM CEST:AC_CHECK_HEADER(xpath.h,,AC_MSG_ERROR([cannot find headers for libxml2]))it's better to write this:AC_CHECK_HEADER(xpath.h,,[AC_MSG_ERROR([cannot find headers for libxml2])])Is this something I could/should do globally ???
Yes. Unless you have a good reason, quote all your macro arguments.
for example, I also have these: - AC_CHECK_HEADERS(unistd.h sys/socket.h) - AC_CHECK_FUNCS(socket htons)- AC_CHECK_LIB(xml2,xmlParseDoc,,AC_MSG_ERROR([cannot link to libxml2]))
Yep, throw some [] in there: - AC_CHECK_HEADERS([unistd.h sys/socket.h]) - AC_CHECK_FUNCS([socket htons])- AC_CHECK_LIB([xml2], [xmlParseDoc], [], [AC_MSG_ERROR([cannot link to libxml2])])
could/should I quote it all ? I'm quite used to quoting in Perl... is this somewhat similar ?
Hmm... not quite. I suggest you have a look at: http://www-src.lip6.fr/homepages/Alexandre.Duret-Lutz/dl/autotools.pdfM4 quoting is explained from slide 57 to 62. It's worth reading. Just like the rest of this tutorial by the way.
-- Benoit Sigoure aka Tsuna EPITA Research and Development Laboratory
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