Checking if your kit is complete...
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Writing Makefile for Regexp::Keep
cp Keep.pm blib/lib/Regexp/Keep.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  Keep.xs > Keep.xsc && mv Keep.xsc Keep.c
gcc -c   -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=\"0.02\" -DXS_VERSION=\"0.02\"  "-I/Users/cpanrun/build/5.10.0/lib/CORE"   Keep.c
Keep.xs: In function 'XS_Regexp__Keep_KEEP':
Keep.xs:14: error: 'PL_regstartp' undeclared (first use in this function)
Keep.xs:14: error: (Each undeclared identifier is reported only once
Keep.xs:14: error: for each function it appears in.)
Keep.xs: In function 'XS_Regexp__Keep_KEEP':
Keep.xs:14: error: 'PL_regstartp' undeclared (first use in this function)
Keep.xs:14: error: (Each undeclared identifier is reported only once
Keep.xs:14: error: for each function it appears in.)
lipo: can't open input file: /var/tmp//ccHByjS6.out (No such file or directory)
make: *** [Keep.o] Error 1