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[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 in Tiger
17# (10.4/darwin 8) and earlier [perl #24122]
18case "$osvers" in
19[1-8].*)
20 d_setregid='undef'
21 d_setreuid='undef'
22 d_setrgid='undef'
23 d_setruid='undef'
24 ;;
25esac
0cad7ed8 26
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27# finite() deprecated in 10.9, use isfinite() instead.
28case "$osvers" in
29[1-8].*) ;;
30*) d_finite='undef' ;;
31esac
32
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33# This was previously used in all but causes three cases
34# (no -Ddprefix=, -Dprefix=/usr, -Dprefix=/some/thing/else)
35# but that caused too much grief.
36# vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules
37
38# BSD paths
39case "$prefix" in
40'') # Default install; use non-system directories
41 prefix='/usr/local';
42 siteprefix='/usr/local';
43 ;;
44'/usr') # We are building/replacing the built-in perl
45 prefix='/';
46 installprefix='/';
47 bin='/usr/bin';
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48 siteprefix='/usr/local';
49 # We don't want /usr/bin/HEAD issues.
50 sitebin='/usr/local/bin';
51 sitescript='/usr/local/bin';
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52 installusrbinperl='define'; # You knew what you were doing.
53 privlib="/System/Library/Perl/${version}";
54 sitelib="/Library/Perl/${version}";
55 vendorprefix='/';
56 usevendorprefix='define';
57 vendorbin='/usr/bin';
58 vendorscript='/usr/bin';
59 vendorlib="/Network/Library/Perl/${version}";
60 # 4BSD uses ${prefix}/share/man, not ${prefix}/man.
61 man1dir='/usr/share/man/man1';
62 man3dir='/usr/share/man/man3';
b69885a6 63 # But users' installs shouldn't touch the system man pages.
8d4e7e39 64 # Transient obsoleted style.
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65 siteman1='/usr/local/share/man/man1';
66 siteman3='/usr/local/share/man/man3';
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67 # New style.
68 siteman1dir='/usr/local/share/man/man1';
69 siteman3dir='/usr/local/share/man/man3';
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70 ;;
71 *) # Anything else; use non-system directories, use Configure defaults
72 ;;
73esac
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74
75##
76# Tool chain settings
77##
78
79# Since we can build fat, the archname doesn't need the processor type
80archname='darwin';
81
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82# nm isn't known to work after Snow Leopard and XCode 4; testing with OS X 10.5
83# and Xcode 3 shows a working nm, but pretending it doesn't work produces no
84# problems.
85usenm='false';
f556e5b9 86
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87case "$optimize" in
88'')
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89# Optimizing for size also mean less resident memory usage on the part
90# of Perl. Apple asserts that this is a more important optimization than
91# saving on CPU cycles. Given that memory speed has not increased at
92# pace with CPU speed over time (on any platform), this is probably a
93# reasonable assertion.
21328108 94if [ -z "${optimize}" ]; then
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95 case "`${cc:-gcc} -v 2>&1`" in
96 *"gcc version 3."*) optimize='-Os' ;;
97 *) optimize='-O3' ;;
21328108 98 esac
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99else
100 optimize='-O3'
23131aa4 101fi
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102;;
103esac
f556e5b9 104
21328108 105# -fno-common because common symbols are not allowed in MH_DYLIB
6239f2da 106# -DPERL_DARWIN: apparently the __APPLE__ is not sanctioned by Apple
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107# as the way to differentiate Mac OS X. (The official line is that
108# *no* cpp symbol does differentiate Mac OS X.)
00e89ad4 109ccflags="${ccflags} -fno-common -DPERL_DARWIN"
f556e5b9 110
4e644a1e 111# At least on Darwin 1.3.x:
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112#
113# # define INT32_MIN -2147483648
114# int main () {
115# double a = INT32_MIN;
116# printf ("INT32_MIN=%g\n", a);
117# return 0;
118# }
119# will output:
120# INT32_MIN=2.14748e+09
121# Note that the INT32_MIN has become positive.
122# INT32_MIN is set in /usr/include/stdint.h by:
123# #define INT32_MIN -2147483648
124# which seems to break the gcc. Defining INT32_MIN as (-2147483647-1)
125# seems to work. INT64_MIN seems to be similarly broken.
126# -- Nicholas Clark, Ken Williams, and Edward Moy
127#
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128# This seems to have been fixed since at least Mac OS X 10.1.3,
129# stdint.h defining INT32_MIN as (-INT32_MAX-1)
130# -- Edward Moy
131#
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132if test -f /usr/include/stdint.h; then
133 case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
21328108 134 *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
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135 esac
136fi
ccf87481 137
21328108 138# Avoid Apple's cpp precompiler, better for extensions
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139if [ "X`echo | ${cc} -no-cpp-precomp -E - 2>&1 >/dev/null`" = "X" ]; then
140 cppflags="${cppflags} -no-cpp-precomp"
835bc3f3 141
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142 # This is necessary because perl's build system doesn't
143 # apply cppflags to cc compile lines as it should.
144 ccflags="${ccflags} ${cppflags}"
145fi
4f8ddd77 146
00371ed5 147# Known optimizer problems.
f5520784 148case "`cc -v 2>&1`" in
21328108 149 *"3.1 20020105"*) toke_cflags='optimize=""' ;;
00371ed5 150esac
2ece6c11 151
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152# Shared library extension is .dylib.
153# Bundle extension is .bundle.
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154so='dylib';
155dlext='bundle';
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156usedl='define';
157
158# 10.4 can use dlopen.
159# 10.4 broke poll().
160case "$osvers" in
161[1-7].*)
162 dlsrc='dl_dyld.xs';
163 ;;
164*)
165 dlsrc='dl_dlopen.xs';
166 d_poll='undef';
167 i_poll='undef';
168 ;;
169esac
170
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171case "$ccdlflags" in # If passed in from command line, presume user knows best
172'')
173 cccdlflags=' '; # space, not empty, because otherwise we get -fpic
174;;
175esac
176
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177# Allow the user to override ld, but modify it as necessary below
178case "$ld" in
44b62df7 179 '') case "$cc" in
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180 # If the cc is explicitly something else than cc (or empty),
181 # set the ld to be that explicitly something else. Conversely,
182 # if the cc is 'cc' (or empty), set the ld to be 'cc'.
183 cc|'') ld='cc';;
184 *) ld="$cc" ;;
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185 esac
186 ;;
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187esac
188
21328108 189# Perl bundles do not expect two-level namespace, added in Darwin 1.4.
986530ea 190# But starting from perl 5.8.1/Darwin 7 the default is the two-level.
f29f446b 191case "$osvers" in
cb3fc426 1921.[0-3].*)
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193 lddlflags="${ldflags} -bundle -undefined suppress"
194 ;;
1951.*)
196 ldflags="${ldflags} -flat_namespace"
197 lddlflags="${ldflags} -bundle -undefined suppress"
198 ;;
199[2-6].*)
200 ldflags="${ldflags} -flat_namespace"
201 lddlflags="${ldflags} -bundle -undefined suppress"
202 ;;
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203*)
204 lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
986530ea 205 case "$ld" in
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206 *MACOSX_DEVELOPMENT_TARGET*) ;;
207 *) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
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208 esac
209 ;;
f29f446b 210esac
f556e5b9 211ldlibpthname='DYLD_LIBRARY_PATH';
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212
213# useshrplib=true results in much slower startup times.
763754f3 214# 'false' is the default value. Use Configure -Duseshrplib to override.
f556e5b9 215
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216cat > UU/archname.cbu <<'EOCBU'
217# This script UU/archname.cbu will get 'called-back' by Configure
218# after it has otherwise determined the architecture name.
219case "$ldflags" in
986530ea 220*"-flat_namespace"*) ;; # Backward compat, be flat.
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221# If we are using two-level namespace, we will munge the archname to show it.
222*) archname="${archname}-2level" ;;
223esac
224EOCBU
225
381aa1c3 226# 64-bit addressing support. Currently strictly experimental. DFD 2005-06-06
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227case "$use64bitall" in
228$define|true|[yY]*)
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229case "$osvers" in
230[1-7].*)
231 cat <<EOM >&4
232
233
234
235*** 64-bit addressing is not supported for Mac OS X versions
236*** below 10.4 ("Tiger") or Darwin versions below 8. Please try
c6eb6e8a 237*** again without -Duse64bitall. (-Duse64bitint will work, however.)
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238
239EOM
240 exit 1
241 ;;
242*)
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243 case "$osvers" in
244 8.*)
245 cat <<EOM >&4
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246
247
248
249*** Perl 64-bit addressing support is experimental for Mac OS X
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250*** 10.4 ("Tiger") and Darwin version 8. System V IPC is disabled
251*** due to problems with the 64-bit versions of msgctl, semctl,
252*** and shmctl. You should also expect the following test failures:
253***
3831a787 254*** ext/threads-shared/t/wait (threaded builds only)
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255
256EOM
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257
258 [ "$d_msgctl" ] || d_msgctl='undef'
259 [ "$d_semctl" ] || d_semctl='undef'
260 [ "$d_shmctl" ] || d_shmctl='undef'
261 ;;
262 esac
263
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264 case `uname -p` in
265 powerpc) arch=ppc64 ;;
266 i386) arch=x86_64 ;;
267 *) cat <<EOM >&4
268
269*** Don't recognize processor, can't specify 64 bit compilation.
270
271EOM
272 ;;
273 esac
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274 for var in ccflags cppflags ld ldflags
275 do
3fe25e0f 276 eval $var="\$${var}\ -arch\ $arch"
381aa1c3 277 done
ee94f810 278
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279 ;;
280esac
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281;;
282esac
381aa1c3 283
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284##
285# System libraries
286##
287
288# vfork works
289usevfork='true';
290
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291# malloc wrap works
292case "$usemallocwrap" in
293'') usemallocwrap='define' ;;
294esac
295
e88d9d51 296# our malloc works (but allow users to override)
ec5333ab 297case "$usemymalloc" in
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298'') usemymalloc='n' ;;
299esac
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300# However sbrk() returns -1 (failure) somewhere in lib/unicore/mktables at
301# around 14M, so we need to use system malloc() as our sbrk()
302malloc_cflags='ccflags="-DUSE_PERL_SBRK -DPERL_SBRK_VIA_MALLOC $ccflags"'
2ece6c11 303
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304# Locales aren't feeling well.
305LC_ALL=C; export LC_ALL;
14c11978 306LANG=C; export LANG;
d235852b 307
2590a1d7 308#
14c11978 309# The libraries are not threadsafe as of OS X 10.1.
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310#
311# Fix when Apple fixes libc.
312#
3db8f154 313case "$usethreads$useithreads" in
21328108 314 *define*)
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315 case "$osvers" in
316 [12345].*) cat <<EOM >&4
317
318
2590a1d7 319
4f8ddd77 320*** Warning, there might be problems with your libraries with
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321*** regards to threading. The test ext/threads/t/libc.t is likely
322*** to fail.
4f8ddd77 323
2590a1d7 324EOM
21328108 325 ;;
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326 *) usereentrant='define';;
327 esac
328
2590a1d7 329esac
835bc3f3 330
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331# Fink can install a GDBM library that claims to have the ODBM interfaces
332# but Perl dynaloader cannot for some reason use that library. We don't
333# really need ODBM_FIle, though, so let's just hint ODBM away.
334i_dbm=undef;
335
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336# Configure doesn't detect ranlib on Tiger properly.
337# NeilW says this should be acceptable on all darwin versions.
338ranlib='ranlib'
339
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340# Catch MacPorts gcc/g++ extra libdir
341case "$($cc -v 2>&1)" in
342*"MacPorts gcc"*) loclibpth="$loclibpth /opt/local/lib/libgcc" ;;
343esac
344
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345##
346# Build process
347##
348
349# Case-insensitive filesystems don't get along with Makefile and
350# makefile in the same place. Since Darwin uses GNU make, this dodges
351# the problem.
352firstmakefile=GNUmakefile;