Bug #75496 for ExtUtils-MakeMaker: [RT #47013] MakeMaker doesn't play nice on MacOSX - case sensitivity of "core"

The following bug report was filed by Craig DeForest on 29 Oct 2007 in the Perl 5 bug queue (https://rt.perl.org/rt3/Ticket/Display.html?id=47013). Since ExtUtils::MakeMaker is maintained on CPAN, I am moving the report to this queue. ##### MakeMaker generates Makefiles whose "make clean" function executes "rm -rf" indiscriminately on anything likely to be a temporary file. This includes the file "core". Unfortunately, MacOSX by default uses case-preserving-but-insensitive files, so entire module subtrees that match /^(.*::)?Core(::.*)?$/i are automatically removed by "make clean" under MacOSX. Ideally, MakeMaker should distinguish between things that are likely to be temporary directories and things that are likely to be temporary files. The former should be "rm -rf"ed and the latter should be merely "rm -f"ed. That would eliminate the problem while still eliminating temporary files. Well, OK, ideally MacOS would support case sensitivity by default, but in light of the fact it doesn't, MakeMaker ought to be a little more careful about trampling things called "Core". ----Perl -V output follows---- Summary of my perl5 (revision 5 version 8 subversion 6) configuration: Platform: osname=darwin, osvers=8.0, archname=darwin-thread-multi-2level uname='darwin b48.apple.com 8.0 darwin kernel version 8.3.0: mon oct 3 20:04 :04 pdt 2005; root:xnu-792.6.22.obj~2release_ppc power macintosh powerpc ' config_args='-ds -e -Dprefix=/usr -Dccflags=-g -pipe - Dldflags=-Dman3ext=3 pm -Duseithreads -Duseshrplib' hint=recommended, useposix=true, d_sigaction=define usethreads=define use5005threads=undef useithreads=define usemultiplicity=de fine useperlio=define d_sfio=undef uselargefiles=define usesocks=undef use64bitint=undef use64bitall=undef uselongdouble=undef usemymalloc=n, bincompat5005=undef Compiler: cc='cc', ccflags ='-g -pipe -fno-common -DPERL_DARWIN -no-cpp- precomp -fno-s trict-aliasing -I/usr/local/include', optimize='-O3', cppflags='-no-cpp-precomp -g -pipe -fno-common -DPERL_DARWIN -no- cpp-precomp -fno-strict-aliasing -I/usr/local/include' ccversion='', gccversion='4.0.1 (Apple Computer, Inc. build 5363) (+4864187) ', gccosandvers='' intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize =8 alignbytes=8, prototype=define Linker and Libraries: ld='env MACOSX_DEPLOYMENT_TARGET=10.3 cc', ldflags ='-L/usr/ local/lib' libpth=/usr/local/lib /usr/lib libs=-ldbm -ldl -lm -lc perllibs=-ldl -lm -lc libc=/usr/lib/libc.dylib, so=dylib, useshrplib=true, libperl=libperl.dylib gnulibc_version='' Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=bundle, d_dlsymun=undef, ccdlflags=' ' cccdlflags=' ', lddlflags='-bundle -undefined dynamic_lookup -L/ usr/local/li b' Characteristics of this binary (from libperl): Compile-time options: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_ CONTEXT Locally applied patches: 23953 - fix for File::Path::rmtree CAN-2004-0452 security issue 33990 - fix for setuid perl security issues SPRINTF0 - fixes for sprintf formatting issues - CVE-2005-3962 Built under darwin Compiled at Dec 7 2006 09:01:25 %ENV: PERL5LIB="/sw/lib/perl5:/sw/lib/perl5/darwin" @INC: /sw/lib/perl5 /sw/lib/perl5/darwin /System/Library/Perl/5.8.6/darwin-thread-multi-2level /System/Library/Perl/5.8.6 /Library/Perl/5.8.6/darwin-thread-multi-2level /Library/Perl/5.8.6 /Library/Perl /Network/Library/Perl/5.8.6/darwin-thread-multi-2level /Network/Library/Perl/5.8.6 /Network/Library/Perl /System/Library/Perl/Extras/5.8.6/darwin-thread-multi-2level /System/Library/Perl/Extras/5.8.6 /Library/Perl/5.8.1 . #####