Changes between Version 42 and Version 43 of CommonProblems

Timestamp:

08/02/10 19:01:42 (5 years ago)

Author:

mmu_man

Comment:

--

CommonProblems

@@ -138 +138 @@
 Also, Both libbind (on BeOS) and libnetwork (on Haiku) have some usual symbols mangled with a prepended underscore (or 2), so typically a test for {{{inet_aton}}} like above changed to {{{AC_SEARCH_LIBS(inet_aton, resolv bind)}}} will fail to find {{{libbind}}} (which exports it as {{{__inet_aton}}}).
 This is because headers use preprocessor defines to make {{{inet_aton()}}} available, and the linking checks done by autoconf does not include the proper headers.
-This can be fixed by checking for another (unmangled) symbol. You will want to contact the project to ask for guidance here.
+This can be fixed by checking for another (unmangled) symbol like {{{gethostbyname2}}}.
+The cleanest checks for the above patch would then be:
+
+{{{
+diff -Naur libevent-1.4.13-stable/configure.in libevent-1.4.13-stable-haiku/configure.in
+--- libevent-1.4.13-stable/configure.in 2009-05-24 13:37:49.000000000 +0000
++++ libevent-1.4.13-stable-haiku/configure.in   2009-05-28 16:55:17.000000000 +0000
+@@ -33,7 +33,6 @@
+ AC_SUBST(LIBTOOL_DEPS)
+
+ dnl Checks for libraries.
+-AC_CHECK_LIB(socket, socket)
++AC_SEARCH_LIBS(socket, socket network)
+-AC_CHECK_LIB(resolv, inet_aton)
++AC_SEARCH_LIBS(gethostbyname2, bind nsl resolv)
+ AC_CHECK_LIB(rt, clock_gettime)
+-AC_CHECK_LIB(nsl, inet_ntoa)
+}}}
+
+You will want to contact the project to ask for guidance here though, as it might impact other platforms.
+Also don't forget to fix the use of the HAVE_FOO macros in the code.
+
+Actually, it seems Haiku provides {{{inet_ntoa()}}} as a weak alias for {{{__inet_ntoa}}}, (plus libnetwork is also checked for for socket(), though some applications won't use the tested symbols if the tested libraries are not there... which is why AC_SEARCH_LIBS is better than AC_CHECK_LIBS, as it first checks if the symbol is available already).
 
 === Missing syslog() ===