Bug #2396 for XML-LibXML: bug in XInclude processing.

t/02parse.t fails in the XInclude section. LibXML.xs includes _processXIncludes(), which calls xmlXIncludeProcess from libxml2. xmlXIncludeProcess returns -1 on error, 0 if no substitutions happened, and n if n substitutions happened. The sense of the test vs. RETVAL is reversed. The attached patch seems to fix the problem and let's t/02parse.t succeed. Perhaps someone could fix up the error text a bit too. XML-LibXML-1.53 Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration: Platform: osname=linux, osvers=2.4.18-4gb, archname=i686-linux uname='linux maple 2.4.18-4gb #1 wed mar 27 13:57:05 utc 2002 i686 unknown ' config_args='-sde -Dprefix=/users/hartzell/gaster -Dlocincpth=/users/hartzell/gaster/include -Dloclibpth=/users/hartzell/gaster/lib -A define:libswanted=sfio socket bind inet nsl nm ndbm dbm db dl dld ld sun m c cposix posix ndir dir crypt sec ucb bsd BSD PW x util' hint=recommended, useposix=true, d_sigaction=define usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef useperlio=define d_sfio=undef uselargefiles=define usesocks=undef use64bitint=undef use64bitall=undef uselongdouble=undef usemymalloc=n, bincompat5005=undef Compiler: cc='cc', ccflags ='-fno-strict-aliasing -I/users/hartzell/gaster/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64', optimize='-O3', cppflags='-fno-strict-aliasing -I/users/hartzell/gaster/include' ccversion='', gccversion='2.95.3 20010315 (SuSE)', gccosandvers='' intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8 alignbytes=4, prototype=define Linker and Libraries: ld='cc', ldflags =' -L/users/hartzell/gaster/lib' libpth=/users/hartzell/gaster/lib /lib /usr/lib /usr/local/lib libs=-lnsl -lndbm -ldb -ldl -lm -lc -lcrypt -lutil perllibs=-lnsl -ldl -lm -lc -lcrypt -lutil libc=, so=so, useshrplib=false, libperl=libperl.a gnulibc_version='2.2.5' Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic' cccdlflags='-fpic', lddlflags='-shared -L/users/hartzell/gaster/lib' Characteristics of this binary (from libperl): Compile-time options: USE_LARGE_FILES Built under linux Compiled at Apr 14 2003 13:32:49 %ENV: PERL5LIB="/users/hartzell/lib/perl5/site_perl" @INC: /users/hartzell/lib/perl5/site_perl /users/hartzell/gaster/lib/perl5/5.8.0/i686-linux /users/hartzell/gaster/lib/perl5/5.8.0 /users/hartzell/gaster/lib/perl5/site_perl/5.8.0/i686-linux /users/hartzell/gaster/lib/perl5/site_perl/5.8.0 /users/hartzell/gaster/lib/perl5/site_perl . Linux maple 2.4.18-4GB #1 Wed Mar 27 13:57:05 UTC 2002 i686 unknown