Checking if your kit is complete... Looks good Argument "6.36_02" isn't numeric in numeric ge (>=) at inc/ExtUtils/MY_Metafile.pm line 112. Writing Makefile for Devel::RunBlock cp lib/Devel/RunBlock.mlpod blib/lib/Devel/RunBlock.mlpod cp lib/Devel/RunBlock.pm blib/lib/Devel/RunBlock.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 RunBlock.xs > RunBlock.xsc && mv RunBlock.xsc RunBlock.c Please specify prototyping behavior for RunBlock.xs (see perlxs manual) 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=\"0.01\" -DXS_VERSION=\"0.01\" "-I/Users/cpanrun/build/5.10.0/lib/CORE" RunBlock.c RunBlock.xs: In function 'XS_Devel__RunBlock__long_return': RunBlock.xs:281: error: 'PL_retstack' undeclared (first use in this function) RunBlock.xs: In function 'XS_Devel__RunBlock__long_return':RunBlock.xs:281: error: (Each undeclared identifier is reported only once RunBlock.xs:281: error: 'PL_retstack' undeclared (first use in this function)RunBlock.xs:281: error: for each function it appears in.) RunBlock.xs:281: error: (Each undeclared identifier is reported only once RunBlock.xs:281: error: for each function it appears in.) RunBlock.xs:281: error: 'struct context' has no member named 'blk_oldretsp' RunBlock.xs:281: error: 'struct context' has no member named 'blk_oldretsp' lipo: can't open input file: /var/tmp//ccyhKUTN.out (No such file or directory) make: *** [RunBlock.o] Error 1