Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -lwbxml2
Writing Makefile for XML::WBXML
cp lib/XML/WBXML.pm blib/lib/XML/WBXML.pm
/Users/cpanrun/build/5.10.0/bin/perl /Users/cpanrun/build/5.10.0/lib/ExtUtils/xsubpp  -typemap /Users/cpanrun/build/5.10.0/lib/ExtUtils/typemap -typemap typemap  WBXML.xs > WBXML.xsc && mv WBXML.xsc WBXML.c
gcc -c  -I. -fno-common -DPERL_DARWIN -no-cpp-precomp -arch ppc -arch i386 -nostdinc -B/Developer/SDKs/MacOSX10.4u.sdk/usr/include/gcc -B/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/gcc -isystem/Developer/SDKs/MacOSX10.4u.sdk/usr/include -F/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks -mmacosx-version-min=10.3 -DPRIVLIB_LAST_IN_INC -fno-strict-aliasing -pipe -O3   -DVERSION=\"0.03\" -DXS_VERSION=\"0.03\"  "-I/Users/cpanrun/build/5.10.0/lib/CORE"   WBXML.c
WBXML.xs:7:19: error: wbxml.h: No such file or directory
WBXML.xs:7:19: error: wbxml.h: No such file or directory
WBXML.c: In function 'XS_XML__WBXML_xml_to_wbxml':
WBXML.c:37: error: 'WB_UTINY' undeclared (first use in this function)
WBXML.c:37: error: (Each undeclared identifier is reported only once
WBXML.c:37: error: for each function it appears in.)
WBXML.c:37: error: 'in_xml' undeclared (first use in this function)
WBXML.c:37: error: parse error before ')' token
WBXML.xs:18: error: 'outwbxml' undeclared (first use in this function)
WBXML.xs:19: error: 'WB_ULONG' undeclared (first use in this function)
WBXML.xs:19: error: parse error before 'outwbxml_len'
WBXML.c: In function 'XS_XML__WBXML_xml_to_wbxml':WBXML.xs:20: error: 'WBXMLError' undeclared (first use in this function)

WBXML.c:37: error: 'WB_UTINY' undeclared (first use in this function)WBXML.xs:21: error: 'WBXMLConvXML2WBXMLParams' undeclared (first use in this function)

WBXML.c:37: error: (Each undeclared identifier is reported only onceWBXML.xs:23: error: 'params' undeclared (first use in this function)

WBXML.c:37: error: for each function it appears in.)
WBXML.c:37: error: 'in_xml' undeclared (first use in this function)WBXML.xs:23: error: 'WBXML_VERSION_12' undeclared (first use in this function)

WBXML.c:37: error: parse error before ')' token
WBXML.xs:27: error: 'ret' undeclared (first use in this function)
WBXML.xs:27: error: 'outwbxml_len' undeclared (first use in this function)
WBXML.xs:28: error: 'WBXML_OK' undeclared (first use in this function)
WBXML.xs:18: error: 'outwbxml' undeclared (first use in this function)
WBXML.xs:19: error: 'WB_ULONG' undeclared (first use in this function)
WBXML.xs:19: error: parse error before 'outwbxml_len'
WBXML.xs:20: error: 'WBXMLError' undeclared (first use in this function)
WBXML.xs:21: error: 'WBXMLConvXML2WBXMLParams' undeclared (first use in this function)
WBXML.xs:23: error: 'params' undeclared (first use in this function)
WBXML.xs:23: error: 'WBXML_VERSION_12' undeclared (first use in this function)
WBXML.xs:27: error: 'ret' undeclared (first use in this function)
WBXML.xs:27: error: 'outwbxml_len' undeclared (first use in this function)
WBXML.xs:28: error: 'WBXML_OK' undeclared (first use in this function)
WBXML.c: In function 'XS_XML__WBXML_wbxml_to_xml':
WBXML.c:75: error: 'WB_UTINY' undeclared (first use in this function)
WBXML.c:75: error: 'in_wbxml' undeclared (first use in this function)
WBXML.c:75: error: parse error before ')' token
WBXML.xs:40: error: 'WB_ULONG' undeclared (first use in this function)
WBXML.xs:40: error: parse error before 'inwbxml_len'
WBXML.xs:41: error: 'outxml' undeclared (first use in this function)
WBXML.xs:42: error: 'WBXMLError' undeclared (first use in this function)
WBXML.xs:42: error: parse error before 'ret'
WBXML.xs:43: error: 'WBXMLConvWBXML2XMLParams' undeclared (first use in this function)
WBXML.xs:45: error: 'params' undeclared (first use in this function)
WBXML.xs:45: error: 'WBXML_ENCODER_XML_GEN_COMPACT' undeclared (first use in this function)WBXML.c: In function 'XS_XML__WBXML_wbxml_to_xml':

WBXML.c:75: error: 'WB_UTINY' undeclared (first use in this function)WBXML.xs:46: error: 'WBXML_LANG_UNKNOWN' undeclared (first use in this function)

WBXML.c:75: error: 'in_wbxml' undeclared (first use in this function)
WBXML.xs:50: error: 'inwbxml_len' undeclared (first use in this function)
WBXML.c:75: error: parse error before ')' token
WBXML.xs:51: error: 'ret' undeclared (first use in this function)
WBXML.xs:52: error: 'WBXML_OK' undeclared (first use in this function)
WBXML.xs:40: error: 'WB_ULONG' undeclared (first use in this function)
WBXML.xs:40: error: parse error before 'inwbxml_len'
WBXML.xs:41: error: 'outxml' undeclared (first use in this function)
WBXML.xs:42: error: 'WBXMLError' undeclared (first use in this function)
WBXML.xs:42: error: parse error before 'ret'
WBXML.xs:43: error: 'WBXMLConvWBXML2XMLParams' undeclared (first use in this function)
WBXML.xs:45: error: 'params' undeclared (first use in this function)
WBXML.xs:45: error: 'WBXML_ENCODER_XML_GEN_COMPACT' undeclared (first use in this function)
WBXML.xs:46: error: 'WBXML_LANG_UNKNOWN' undeclared (first use in this function)
WBXML.xs:50: error: 'inwbxml_len' undeclared (first use in this function)
WBXML.xs:51: error: 'ret' undeclared (first use in this function)
WBXML.xs:52: error: 'WBXML_OK' undeclared (first use in this function)
lipo: can't open input file: /var/tmp//ccpibjFg.out (No such file or directory)
make: *** [WBXML.o] Error 1