$ perl Makefile.PL Writing Makefile for Data::Alias Writing MYMETA.yml and MYMETA.json $make clang -c -arch x86_64 -g -pipe -fno-common -DPERL_DARWIN -fno-strict-aliasing -fstack-protector -I/usr/local/include -Os -DVERSION=\"1.16\" -DXS_VERSION=\"1.16\" "-I/System/Library/Perl/5.12/darwin-thread-multi-2level/CORE" Alias.c Alias.xs:1336:3: error: too few arguments provided to function-like macro invocation POPSUB(cx, sv); ^ /System/Library/Perl/5.12/darwin-thread-multi-2level/CORE/cop.h:356:52: note: expanded from macro 'POPSUB' CopLINE((COP*)CvSTART((const CV*)cx->blk_sub.cv))); \ ^ Alias.xs:1336:3: error: use of undeclared identifier 'RETURN_PROBE' POPSUB(cx, sv); ^ /System/Library/Perl/5.12/darwin-thread-multi-2level/CORE/cop.h:354:2: note: expanded from macro 'POPSUB' RETURN_PROBE(GvENAME(CvGV((const CV*)cx->blk_sub.cv)), \ ^ 2 errors generated. make: *** [Alias.o] Error 1