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perldelta for [perl #73754] and [perl #77362]
[perl5.git] / hints / darwin.sh
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1##
2# Darwin (Mac OS) hints
835bc3f3 3# Wilfredo Sanchez <wsanchez@wsanchez.net>
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4##
5
6##
7# Paths
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8##
9
10# Configure hasn't figured out the version number yet. Bummer.
11perl_revision=`awk '/define[ ]+PERL_REVISION/ {print $3}' $src/patchlevel.h`
12perl_version=`awk '/define[ ]+PERL_VERSION/ {print $3}' $src/patchlevel.h`
13perl_subversion=`awk '/define[ ]+PERL_SUBVERSION/ {print $3}' $src/patchlevel.h`
14version="${perl_revision}.${perl_version}.${perl_subversion}"
15
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16# Pretend that Darwin doesn't know about those system calls [perl #24122]
17d_setregid='undef'
18d_setreuid='undef'
19d_setrgid='undef'
20d_setruid='undef'
21
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22# This was previously used in all but causes three cases
23# (no -Ddprefix=, -Dprefix=/usr, -Dprefix=/some/thing/else)
24# but that caused too much grief.
25# vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules
26
27# BSD paths
28case "$prefix" in
29'') # Default install; use non-system directories
30 prefix='/usr/local';
31 siteprefix='/usr/local';
32 ;;
33'/usr') # We are building/replacing the built-in perl
34 prefix='/';
35 installprefix='/';
36 bin='/usr/bin';
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37 siteprefix='/usr/local';
38 # We don't want /usr/bin/HEAD issues.
39 sitebin='/usr/local/bin';
40 sitescript='/usr/local/bin';
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41 installusrbinperl='define'; # You knew what you were doing.
42 privlib="/System/Library/Perl/${version}";
43 sitelib="/Library/Perl/${version}";
44 vendorprefix='/';
45 usevendorprefix='define';
46 vendorbin='/usr/bin';
47 vendorscript='/usr/bin';
48 vendorlib="/Network/Library/Perl/${version}";
49 # 4BSD uses ${prefix}/share/man, not ${prefix}/man.
50 man1dir='/usr/share/man/man1';
51 man3dir='/usr/share/man/man3';
b69885a6 52 # But users' installs shouldn't touch the system man pages.
8d4e7e39 53 # Transient obsoleted style.
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54 siteman1='/usr/local/share/man/man1';
55 siteman3='/usr/local/share/man/man3';
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56 # New style.
57 siteman1dir='/usr/local/share/man/man1';
58 siteman3dir='/usr/local/share/man/man3';
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59 ;;
60 *) # Anything else; use non-system directories, use Configure defaults
61 ;;
62esac
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63
64##
65# Tool chain settings
66##
67
68# Since we can build fat, the archname doesn't need the processor type
69archname='darwin';
70
71# nm works.
72usenm='true';
73
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74case "$optimize" in
75'')
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76# Optimizing for size also mean less resident memory usage on the part
77# of Perl. Apple asserts that this is a more important optimization than
78# saving on CPU cycles. Given that memory speed has not increased at
79# pace with CPU speed over time (on any platform), this is probably a
80# reasonable assertion.
21328108 81if [ -z "${optimize}" ]; then
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82 case "`${cc:-gcc} -v 2>&1`" in
83 *"gcc version 3."*) optimize='-Os' ;;
84 *) optimize='-O3' ;;
21328108 85 esac
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86else
87 optimize='-O3'
23131aa4 88fi
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89;;
90esac
f556e5b9 91
21328108 92# -fno-common because common symbols are not allowed in MH_DYLIB
6239f2da 93# -DPERL_DARWIN: apparently the __APPLE__ is not sanctioned by Apple
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94# as the way to differentiate Mac OS X. (The official line is that
95# *no* cpp symbol does differentiate Mac OS X.)
00e89ad4 96ccflags="${ccflags} -fno-common -DPERL_DARWIN"
f556e5b9 97
4e644a1e 98# At least on Darwin 1.3.x:
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99#
100# # define INT32_MIN -2147483648
101# int main () {
102# double a = INT32_MIN;
103# printf ("INT32_MIN=%g\n", a);
104# return 0;
105# }
106# will output:
107# INT32_MIN=2.14748e+09
108# Note that the INT32_MIN has become positive.
109# INT32_MIN is set in /usr/include/stdint.h by:
110# #define INT32_MIN -2147483648
111# which seems to break the gcc. Defining INT32_MIN as (-2147483647-1)
112# seems to work. INT64_MIN seems to be similarly broken.
113# -- Nicholas Clark, Ken Williams, and Edward Moy
114#
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115# This seems to have been fixed since at least Mac OS X 10.1.3,
116# stdint.h defining INT32_MIN as (-INT32_MAX-1)
117# -- Edward Moy
118#
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119case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
120 *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
65fe0b2a 121esac
ccf87481 122
21328108 123# Avoid Apple's cpp precompiler, better for extensions
8f4f83ba 124cppflags="${cppflags} -no-cpp-precomp"
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125
126# This is necessary because perl's build system doesn't
127# apply cppflags to cc compile lines as it should.
128ccflags="${ccflags} ${cppflags}"
4f8ddd77 129
00371ed5 130# Known optimizer problems.
f5520784 131case "`cc -v 2>&1`" in
21328108 132 *"3.1 20020105"*) toke_cflags='optimize=""' ;;
00371ed5 133esac
2ece6c11 134
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135# Shared library extension is .dylib.
136# Bundle extension is .bundle.
137ld='cc';
138so='dylib';
139dlext='bundle';
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140usedl='define';
141
142# 10.4 can use dlopen.
143# 10.4 broke poll().
144case "$osvers" in
145[1-7].*)
146 dlsrc='dl_dyld.xs';
147 ;;
148*)
149 dlsrc='dl_dlopen.xs';
150 d_poll='undef';
151 i_poll='undef';
152 ;;
153esac
154
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155case "$ccdlflags" in # If passed in from command line, presume user knows best
156'')
157 cccdlflags=' '; # space, not empty, because otherwise we get -fpic
158;;
159esac
160
21328108 161# Perl bundles do not expect two-level namespace, added in Darwin 1.4.
986530ea 162# But starting from perl 5.8.1/Darwin 7 the default is the two-level.
f29f446b 163case "$osvers" in
cb3fc426 1641.[0-3].*)
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165 lddlflags="${ldflags} -bundle -undefined suppress"
166 ;;
1671.*)
168 ldflags="${ldflags} -flat_namespace"
169 lddlflags="${ldflags} -bundle -undefined suppress"
170 ;;
171[2-6].*)
172 ldflags="${ldflags} -flat_namespace"
173 lddlflags="${ldflags} -bundle -undefined suppress"
174 ;;
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175*)
176 lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
986530ea 177 case "$ld" in
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178 *MACOSX_DEVELOPMENT_TARGET*) ;;
179 *) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
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180 esac
181 ;;
f29f446b 182esac
f556e5b9 183ldlibpthname='DYLD_LIBRARY_PATH';
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184
185# useshrplib=true results in much slower startup times.
763754f3 186# 'false' is the default value. Use Configure -Duseshrplib to override.
f556e5b9 187
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188cat > UU/archname.cbu <<'EOCBU'
189# This script UU/archname.cbu will get 'called-back' by Configure
190# after it has otherwise determined the architecture name.
191case "$ldflags" in
986530ea 192*"-flat_namespace"*) ;; # Backward compat, be flat.
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193# If we are using two-level namespace, we will munge the archname to show it.
194*) archname="${archname}-2level" ;;
195esac
196EOCBU
197
381aa1c3 198# 64-bit addressing support. Currently strictly experimental. DFD 2005-06-06
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199case "$use64bitall" in
200$define|true|[yY]*)
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201case "$osvers" in
202[1-7].*)
203 cat <<EOM >&4
204
205
206
207*** 64-bit addressing is not supported for Mac OS X versions
208*** below 10.4 ("Tiger") or Darwin versions below 8. Please try
c6eb6e8a 209*** again without -Duse64bitall. (-Duse64bitint will work, however.)
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210
211EOM
212 exit 1
213 ;;
214*)
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215 case "$osvers" in
216 8.*)
217 cat <<EOM >&4
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218
219
220
221*** Perl 64-bit addressing support is experimental for Mac OS X
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222*** 10.4 ("Tiger") and Darwin version 8. System V IPC is disabled
223*** due to problems with the 64-bit versions of msgctl, semctl,
224*** and shmctl. You should also expect the following test failures:
225***
3831a787 226*** ext/threads-shared/t/wait (threaded builds only)
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227
228EOM
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229
230 [ "$d_msgctl" ] || d_msgctl='undef'
231 [ "$d_semctl" ] || d_semctl='undef'
232 [ "$d_shmctl" ] || d_shmctl='undef'
233 ;;
234 esac
235
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236 case `uname -p` in
237 powerpc) arch=ppc64 ;;
238 i386) arch=x86_64 ;;
239 *) cat <<EOM >&4
240
241*** Don't recognize processor, can't specify 64 bit compilation.
242
243EOM
244 ;;
245 esac
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246 for var in ccflags cppflags ld ldflags
247 do
3fe25e0f 248 eval $var="\$${var}\ -arch\ $arch"
381aa1c3 249 done
ee94f810 250
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251 ;;
252esac
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253;;
254esac
381aa1c3 255
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256##
257# System libraries
258##
259
260# vfork works
261usevfork='true';
262
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263# malloc wrap works
264case "$usemallocwrap" in
265'') usemallocwrap='define' ;;
266esac
267
e88d9d51 268# our malloc works (but allow users to override)
ec5333ab 269case "$usemymalloc" in
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270'') usemymalloc='n' ;;
271esac
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272# However sbrk() returns -1 (failure) somewhere in lib/unicore/mktables at
273# around 14M, so we need to use system malloc() as our sbrk()
274malloc_cflags='ccflags="-DUSE_PERL_SBRK -DPERL_SBRK_VIA_MALLOC $ccflags"'
2ece6c11 275
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276# Locales aren't feeling well.
277LC_ALL=C; export LC_ALL;
14c11978 278LANG=C; export LANG;
d235852b 279
2590a1d7 280#
14c11978 281# The libraries are not threadsafe as of OS X 10.1.
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282#
283# Fix when Apple fixes libc.
284#
3db8f154 285case "$usethreads$useithreads" in
21328108 286 *define*)
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287 case "$osvers" in
288 [12345].*) cat <<EOM >&4
289
290
2590a1d7 291
4f8ddd77 292*** Warning, there might be problems with your libraries with
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293*** regards to threading. The test ext/threads/t/libc.t is likely
294*** to fail.
4f8ddd77 295
2590a1d7 296EOM
21328108 297 ;;
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298 *) usereentrant='define';;
299 esac
300
2590a1d7 301esac
835bc3f3 302
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303# Fink can install a GDBM library that claims to have the ODBM interfaces
304# but Perl dynaloader cannot for some reason use that library. We don't
305# really need ODBM_FIle, though, so let's just hint ODBM away.
306i_dbm=undef;
307
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308# Configure doesn't detect ranlib on Tiger properly.
309# NeilW says this should be acceptable on all darwin versions.
310ranlib='ranlib'
311
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312##
313# Build process
314##
315
316# Case-insensitive filesystems don't get along with Makefile and
317# makefile in the same place. Since Darwin uses GNU make, this dodges
318# the problem.
319firstmakefile=GNUmakefile;