perl-5.16.2/hints/darwin.sh - toolchain/perl - Git at Google

 ##
 # Darwin (Mac OS) hints
 # Wilfredo Sanchez <wsanchez@wsanchez.net>
 ##

 ##
 # Paths
 ##

 # Configure hasn't figured out the version number yet.  Bummer.
 perl_revision=`awk '/define[ 	]+PERL_REVISION/ {print $3}' $src/patchlevel.h`
 perl_version=`awk '/define[ 	]+PERL_VERSION/ {print $3}' $src/patchlevel.h`
 perl_subversion=`awk '/define[ 	]+PERL_SUBVERSION/ {print $3}' $src/patchlevel.h`
 version="${perl_revision}.${perl_version}.${perl_subversion}"

 # Pretend that Darwin doesn't know about those system calls in Tiger
 # (10.4/darwin 8) and earlier [perl #24122]
 case "$osvers" in
 [1-8].*)
     d_setregid='undef'
     d_setreuid='undef'
     d_setrgid='undef'
     d_setruid='undef'
     ;;
 esac

 # This was previously used in all but causes three cases
 # (no -Ddprefix=, -Dprefix=/usr, -Dprefix=/some/thing/else)
 # but that caused too much grief.
 # vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules

 # BSD paths
 case "$prefix" in
 '')	# Default install; use non-system directories
 	prefix='/usr/local';
 	siteprefix='/usr/local';
 	;;
 '/usr')	# We are building/replacing the built-in perl
 	prefix='/';
 	installprefix='/';
 	bin='/usr/bin';
 	siteprefix='/usr/local';
 	# We don't want /usr/bin/HEAD issues.
 	sitebin='/usr/local/bin';
 	sitescript='/usr/local/bin';
 	installusrbinperl='define'; # You knew what you were doing.
 	privlib="/System/Library/Perl/${version}";
 	sitelib="/Library/Perl/${version}";
 	vendorprefix='/';
 	usevendorprefix='define';
 	vendorbin='/usr/bin';
 	vendorscript='/usr/bin';
 	vendorlib="/Network/Library/Perl/${version}";
 	# 4BSD uses ${prefix}/share/man, not ${prefix}/man.
 	man1dir='/usr/share/man/man1';
 	man3dir='/usr/share/man/man3';
 	# But users' installs shouldn't touch the system man pages.
 	# Transient obsoleted style.
 	siteman1='/usr/local/share/man/man1';
 	siteman3='/usr/local/share/man/man3';
 	# New style.
 	siteman1dir='/usr/local/share/man/man1';
 	siteman3dir='/usr/local/share/man/man3';
 	;;
   *)	# Anything else; use non-system directories, use Configure defaults
 	;;
 esac

 ##
 # Tool chain settings
 ##

 # Since we can build fat, the archname doesn't need the processor type
 archname='darwin';

 # nm isn't known to work after Snow Leopard and XCode 4; testing with OS X 10.5
 # and Xcode 3 shows a working nm, but pretending it doesn't work produces no
 # problems.
 usenm='false';

 case "$optimize" in
 '')
 #    Optimizing for size also mean less resident memory usage on the part
 # of Perl.  Apple asserts that this is a more important optimization than
 # saving on CPU cycles.  Given that memory speed has not increased at
 # pace with CPU speed over time (on any platform), this is probably a
 # reasonable assertion.
 if [ -z "${optimize}" ]; then
   case "`${cc:-gcc} -v 2>&1`" in
     *"gcc version 3."*) optimize='-Os' ;;
     *) optimize='-O3' ;;
   esac
 else
   optimize='-O3'
 fi
 ;;
 esac

 # -fno-common because common symbols are not allowed in MH_DYLIB
 # -DPERL_DARWIN: apparently the __APPLE__ is not sanctioned by Apple
 # as the way to differentiate Mac OS X.  (The official line is that
 # *no* cpp symbol does differentiate Mac OS X.)
 ccflags="${ccflags} -fno-common -DPERL_DARWIN"

 # At least on Darwin 1.3.x:
 #
 # # define INT32_MIN -2147483648
 # int main () {
 #  double a = INT32_MIN;
 #  printf ("INT32_MIN=%g\n", a);
 #  return 0;
 # }
 # will output:
 # INT32_MIN=2.14748e+09
 # Note that the INT32_MIN has become positive.
 # INT32_MIN is set in /usr/include/stdint.h by:
 # #define INT32_MIN        -2147483648
 # which seems to break the gcc.  Defining INT32_MIN as (-2147483647-1)
 # seems to work.  INT64_MIN seems to be similarly broken.
 # -- Nicholas Clark, Ken Williams, and Edward Moy
 #
 # This seems to have been fixed since at least Mac OS X 10.1.3,
 # stdint.h defining INT32_MIN as (-INT32_MAX-1)
 # -- Edward Moy
 #
 case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
   *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
 esac

 # Avoid Apple's cpp precompiler, better for extensions
 if [ "X`echo | ${cc} -no-cpp-precomp -E - 2>&1 >/dev/null`" = "X" ]; then
     cppflags="${cppflags} -no-cpp-precomp"

     # This is necessary because perl's build system doesn't
     # apply cppflags to cc compile lines as it should.
     ccflags="${ccflags} ${cppflags}"
 fi

 # Known optimizer problems.
 case "`cc -v 2>&1`" in
   *"3.1 20020105"*) toke_cflags='optimize=""' ;;
 esac

 # Shared library extension is .dylib.
 # Bundle extension is .bundle.
 ld='cc';
 so='dylib';
 dlext='bundle';
 usedl='define';

 # 10.4 can use dlopen.
 # 10.4 broke poll().
 case "$osvers" in
 [1-7].*)
     dlsrc='dl_dyld.xs';
     ;;
 *)
     dlsrc='dl_dlopen.xs';
     d_poll='undef';
     i_poll='undef';
     ;;
 esac

 case "$ccdlflags" in		# If passed in from command line, presume user knows best
 '')
    cccdlflags=' '; # space, not empty, because otherwise we get -fpic
 ;;
 esac

 # Perl bundles do not expect two-level namespace, added in Darwin 1.4.
 # But starting from perl 5.8.1/Darwin 7 the default is the two-level.
 case "$osvers" in
 1.[0-3].*)
    lddlflags="${ldflags} -bundle -undefined suppress"
    ;;
 1.*)
    ldflags="${ldflags} -flat_namespace"
    lddlflags="${ldflags} -bundle -undefined suppress"
    ;;
 [2-6].*)
    ldflags="${ldflags} -flat_namespace"
    lddlflags="${ldflags} -bundle -undefined suppress"
    ;;
 *)
    lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
    case "$ld" in
        *MACOSX_DEVELOPMENT_TARGET*) ;;
        *) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
    esac
    ;;
 esac
 ldlibpthname='DYLD_LIBRARY_PATH';

 # useshrplib=true results in much slower startup times.
 # 'false' is the default value.  Use Configure -Duseshrplib to override.

 cat > UU/archname.cbu <<'EOCBU'
 # This script UU/archname.cbu will get 'called-back' by Configure
 # after it has otherwise determined the architecture name.
 case "$ldflags" in
 *"-flat_namespace"*) ;; # Backward compat, be flat.
 # If we are using two-level namespace, we will munge the archname to show it.
 *) archname="${archname}-2level" ;;
 esac
 EOCBU

 # 64-bit addressing support. Currently strictly experimental. DFD 2005-06-06
 case "$use64bitall" in
 $define|true|[yY]*)
 case "$osvers" in
 [1-7].*)
      cat <<EOM >&4


 *** 64-bit addressing is not supported for Mac OS X versions
 *** below 10.4 ("Tiger") or Darwin versions below 8. Please try
 *** again without -Duse64bitall. (-Duse64bitint will work, however.)

 EOM
      exit 1
   ;;
 *)
     case "$osvers" in
     8.*)
         cat <<EOM >&4


 *** Perl 64-bit addressing support is experimental for Mac OS X
 *** 10.4 ("Tiger") and Darwin version 8. System V IPC is disabled
 *** due to problems with the 64-bit versions of msgctl, semctl,
 *** and shmctl. You should also expect the following test failures:
 ***
 ***    ext/threads-shared/t/wait (threaded builds only)

 EOM

         [ "$d_msgctl" ] || d_msgctl='undef'
         [ "$d_semctl" ] || d_semctl='undef'
         [ "$d_shmctl" ] || d_shmctl='undef'
     ;;
     esac

     case `uname -p` in
     powerpc) arch=ppc64 ;;
     i386) arch=x86_64 ;;
     *) cat <<EOM >&4

 *** Don't recognize processor, can't specify 64 bit compilation.

 EOM
     ;;
     esac
     for var in ccflags cppflags ld ldflags
     do
        eval $var="\$${var}\ -arch\ $arch"
     done

     ;;
 esac
 ;;
 esac

 ##
 # System libraries
 ##

 # vfork works
 usevfork='true';

 # malloc wrap works
 case "$usemallocwrap" in
 '') usemallocwrap='define' ;;
 esac

 # our malloc works (but allow users to override)
 case "$usemymalloc" in
 '') usemymalloc='n' ;;
 esac
 # However sbrk() returns -1 (failure) somewhere in lib/unicore/mktables at
 # around 14M, so we need to use system malloc() as our sbrk()
 malloc_cflags='ccflags="-DUSE_PERL_SBRK -DPERL_SBRK_VIA_MALLOC $ccflags"'

 # Locales aren't feeling well.
 LC_ALL=C; export LC_ALL;
 LANG=C; export LANG;

 #
 # The libraries are not threadsafe as of OS X 10.1.
 #
 # Fix when Apple fixes libc.
 #
 case "$usethreads$useithreads" in
   *define*)
   case "$osvers" in
     [12345].*)     cat <<EOM >&4


 *** Warning, there might be problems with your libraries with
 *** regards to threading.  The test ext/threads/t/libc.t is likely
 *** to fail.

 EOM
     ;;
     *) usereentrant='define';;
   esac

 esac

 # Fink can install a GDBM library that claims to have the ODBM interfaces
 # but Perl dynaloader cannot for some reason use that library.  We don't
 # really need ODBM_FIle, though, so let's just hint ODBM away.
 i_dbm=undef;

 # Configure doesn't detect ranlib on Tiger properly.
 # NeilW says this should be acceptable on all darwin versions.
 ranlib='ranlib'

 ##
 # Build process
 ##

 # Case-insensitive filesystems don't get along with Makefile and
 # makefile in the same place.  Since Darwin uses GNU make, this dodges
 # the problem.
 firstmakefile=GNUmakefile;
	##
	# Darwin (Mac OS) hints
	# Wilfredo Sanchez <wsanchez@wsanchez.net>
	##

	##
	# Paths
	##

	# Configure hasn't figured out the version number yet. Bummer.
	perl_revision=`awk '/define[ ]+PERL_REVISION/ {print $3}' $src/patchlevel.h`
	perl_version=`awk '/define[ ]+PERL_VERSION/ {print $3}' $src/patchlevel.h`
	perl_subversion=`awk '/define[ ]+PERL_SUBVERSION/ {print $3}' $src/patchlevel.h`
	version="${perl_revision}.${perl_version}.${perl_subversion}"

	# Pretend that Darwin doesn't know about those system calls in Tiger
	# (10.4/darwin 8) and earlier [perl #24122]
	case "$osvers" in
	[1-8].*)
	d_setregid='undef'
	d_setreuid='undef'
	d_setrgid='undef'
	d_setruid='undef'
	;;
	esac

	# This was previously used in all but causes three cases
	# (no -Ddprefix=, -Dprefix=/usr, -Dprefix=/some/thing/else)
	# but that caused too much grief.
	# vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules

	# BSD paths
	case "$prefix" in
	'') # Default install; use non-system directories
	prefix='/usr/local';
	siteprefix='/usr/local';
	;;
	'/usr') # We are building/replacing the built-in perl
	prefix='/';
	installprefix='/';
	bin='/usr/bin';
	siteprefix='/usr/local';
	# We don't want /usr/bin/HEAD issues.
	sitebin='/usr/local/bin';
	sitescript='/usr/local/bin';
	installusrbinperl='define'; # You knew what you were doing.
	privlib="/System/Library/Perl/${version}";
	sitelib="/Library/Perl/${version}";
	vendorprefix='/';
	usevendorprefix='define';
	vendorbin='/usr/bin';
	vendorscript='/usr/bin';
	vendorlib="/Network/Library/Perl/${version}";
	# 4BSD uses ${prefix}/share/man, not ${prefix}/man.
	man1dir='/usr/share/man/man1';
	man3dir='/usr/share/man/man3';
	# But users' installs shouldn't touch the system man pages.
	# Transient obsoleted style.
	siteman1='/usr/local/share/man/man1';
	siteman3='/usr/local/share/man/man3';
	# New style.
	siteman1dir='/usr/local/share/man/man1';
	siteman3dir='/usr/local/share/man/man3';
	;;
	*) # Anything else; use non-system directories, use Configure defaults
	;;
	esac

	##
	# Tool chain settings
	##

	# Since we can build fat, the archname doesn't need the processor type
	archname='darwin';

	# nm isn't known to work after Snow Leopard and XCode 4; testing with OS X 10.5
	# and Xcode 3 shows a working nm, but pretending it doesn't work produces no
	# problems.
	usenm='false';

	case "$optimize" in
	'')
	# Optimizing for size also mean less resident memory usage on the part
	# of Perl. Apple asserts that this is a more important optimization than
	# saving on CPU cycles. Given that memory speed has not increased at
	# pace with CPU speed over time (on any platform), this is probably a
	# reasonable assertion.
	if [ -z "${optimize}" ]; then
	case "`${cc:-gcc} -v 2>&1`" in
	"gcc version 3.") optimize='-Os' ;;
	*) optimize='-O3' ;;
	esac
	else
	optimize='-O3'
	fi
	;;
	esac

	# -fno-common because common symbols are not allowed in MH_DYLIB
	# -DPERL_DARWIN: apparently the __APPLE__ is not sanctioned by Apple
	# as the way to differentiate Mac OS X. (The official line is that
	# no cpp symbol does differentiate Mac OS X.)
	ccflags="${ccflags} -fno-common -DPERL_DARWIN"

	# At least on Darwin 1.3.x:
	#
	# # define INT32_MIN -2147483648
	# int main () {
	# double a = INT32_MIN;
	# printf ("INT32_MIN=%g\n", a);
	# return 0;
	# }
	# will output:
	# INT32_MIN=2.14748e+09
	# Note that the INT32_MIN has become positive.
	# INT32_MIN is set in /usr/include/stdint.h by:
	# #define INT32_MIN -2147483648
	# which seems to break the gcc. Defining INT32_MIN as (-2147483647-1)
	# seems to work. INT64_MIN seems to be similarly broken.
	# -- Nicholas Clark, Ken Williams, and Edward Moy
	#
	# This seems to have been fixed since at least Mac OS X 10.1.3,
	# stdint.h defining INT32_MIN as (-INT32_MAX-1)
	# -- Edward Moy
	#
	case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
	*-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
	esac

	# Avoid Apple's cpp precompiler, better for extensions
	if [ "X`echo \| ${cc} -no-cpp-precomp -E - 2>&1 >/dev/null`" = "X" ]; then
	cppflags="${cppflags} -no-cpp-precomp"

	# This is necessary because perl's build system doesn't
	# apply cppflags to cc compile lines as it should.
	ccflags="${ccflags} ${cppflags}"
	fi

	# Known optimizer problems.
	case "`cc -v 2>&1`" in
	"3.1 20020105") toke_cflags='optimize=""' ;;
	esac

	# Shared library extension is .dylib.
	# Bundle extension is .bundle.
	ld='cc';
	so='dylib';
	dlext='bundle';
	usedl='define';

	# 10.4 can use dlopen.
	# 10.4 broke poll().
	case "$osvers" in
	[1-7].*)
	dlsrc='dl_dyld.xs';
	;;
	*)
	dlsrc='dl_dlopen.xs';
	d_poll='undef';
	i_poll='undef';
	;;
	esac

	case "$ccdlflags" in # If passed in from command line, presume user knows best
	'')
	cccdlflags=' '; # space, not empty, because otherwise we get -fpic
	;;
	esac

	# Perl bundles do not expect two-level namespace, added in Darwin 1.4.
	# But starting from perl 5.8.1/Darwin 7 the default is the two-level.
	case "$osvers" in
	1.[0-3].*)
	lddlflags="${ldflags} -bundle -undefined suppress"
	;;
	1.*)
	ldflags="${ldflags} -flat_namespace"
	lddlflags="${ldflags} -bundle -undefined suppress"
	;;
	[2-6].*)
	ldflags="${ldflags} -flat_namespace"
	lddlflags="${ldflags} -bundle -undefined suppress"
	;;
	*)
	lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
	case "$ld" in
	MACOSX_DEVELOPMENT_TARGET) ;;
	*) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
	esac
	;;
	esac
	ldlibpthname='DYLD_LIBRARY_PATH';

	# useshrplib=true results in much slower startup times.
	# 'false' is the default value. Use Configure -Duseshrplib to override.

	cat > UU/archname.cbu <<'EOCBU'
	# This script UU/archname.cbu will get 'called-back' by Configure
	# after it has otherwise determined the architecture name.
	case "$ldflags" in
	"-flat_namespace") ;; # Backward compat, be flat.
	# If we are using two-level namespace, we will munge the archname to show it.
	*) archname="${archname}-2level" ;;
	esac
	EOCBU

	# 64-bit addressing support. Currently strictly experimental. DFD 2005-06-06
	case "$use64bitall" in
	$define\|true\|[yY]*)
	case "$osvers" in
	[1-7].*)
	cat <<EOM >&4



	*** 64-bit addressing is not supported for Mac OS X versions
	*** below 10.4 ("Tiger") or Darwin versions below 8. Please try
	*** again without -Duse64bitall. (-Duse64bitint will work, however.)

	EOM
	exit 1
	;;
	*)
	case "$osvers" in
	8.*)
	cat <<EOM >&4



	*** Perl 64-bit addressing support is experimental for Mac OS X
	*** 10.4 ("Tiger") and Darwin version 8. System V IPC is disabled
	*** due to problems with the 64-bit versions of msgctl, semctl,
	*** and shmctl. You should also expect the following test failures:
	***
	*** ext/threads-shared/t/wait (threaded builds only)

	EOM

	[ "$d_msgctl" ] \|\| d_msgctl='undef'
	[ "$d_semctl" ] \|\| d_semctl='undef'
	[ "$d_shmctl" ] \|\| d_shmctl='undef'
	;;
	esac

	case `uname -p` in
	powerpc) arch=ppc64 ;;
	i386) arch=x86_64 ;;
	*) cat <<EOM >&4

	*** Don't recognize processor, can't specify 64 bit compilation.

	EOM
	;;
	esac
	for var in ccflags cppflags ld ldflags
	do
	eval $var="\$${var}\ -arch\ $arch"
	done

	;;
	esac
	;;
	esac

	##
	# System libraries
	##

	# vfork works
	usevfork='true';

	# malloc wrap works
	case "$usemallocwrap" in
	'') usemallocwrap='define' ;;
	esac

	# our malloc works (but allow users to override)
	case "$usemymalloc" in
	'') usemymalloc='n' ;;
	esac
	# However sbrk() returns -1 (failure) somewhere in lib/unicore/mktables at
	# around 14M, so we need to use system malloc() as our sbrk()
	malloc_cflags='ccflags="-DUSE_PERL_SBRK -DPERL_SBRK_VIA_MALLOC $ccflags"'

	# Locales aren't feeling well.
	LC_ALL=C; export LC_ALL;
	LANG=C; export LANG;

	#
	# The libraries are not threadsafe as of OS X 10.1.
	#
	# Fix when Apple fixes libc.
	#
	case "$usethreads$useithreads" in
	define)
	case "$osvers" in
	[12345].*) cat <<EOM >&4



	*** Warning, there might be problems with your libraries with
	*** regards to threading. The test ext/threads/t/libc.t is likely
	*** to fail.

	EOM
	;;
	*) usereentrant='define';;
	esac

	esac

	# Fink can install a GDBM library that claims to have the ODBM interfaces
	# but Perl dynaloader cannot for some reason use that library. We don't
	# really need ODBM_FIle, though, so let's just hint ODBM away.
	i_dbm=undef;

	# Configure doesn't detect ranlib on Tiger properly.
	# NeilW says this should be acceptable on all darwin versions.
	ranlib='ranlib'

	##
	# Build process
	##

	# Case-insensitive filesystems don't get along with Makefile and
	# makefile in the same place. Since Darwin uses GNU make, this dodges
	# the problem.
	firstmakefile=GNUmakefile;