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In Darwin's hints, only add -no-cpp-precomp to ccflags if it's not an error.
[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 "$osvers" in
19[1-8].*)
20 d_setregid='undef'
21 d_setreuid='undef'
22 d_setrgid='undef'
23 d_setruid='undef'
24 ;;
25esac
0cad7ed8 26
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27# This was previously used in all but causes three cases
28# (no -Ddprefix=, -Dprefix=/usr, -Dprefix=/some/thing/else)
29# but that caused too much grief.
30# vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules
31
32# BSD paths
33case "$prefix" in
34'') # Default install; use non-system directories
35 prefix='/usr/local';
36 siteprefix='/usr/local';
37 ;;
38'/usr') # We are building/replacing the built-in perl
39 prefix='/';
40 installprefix='/';
41 bin='/usr/bin';
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42 siteprefix='/usr/local';
43 # We don't want /usr/bin/HEAD issues.
44 sitebin='/usr/local/bin';
45 sitescript='/usr/local/bin';
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46 installusrbinperl='define'; # You knew what you were doing.
47 privlib="/System/Library/Perl/${version}";
48 sitelib="/Library/Perl/${version}";
49 vendorprefix='/';
50 usevendorprefix='define';
51 vendorbin='/usr/bin';
52 vendorscript='/usr/bin';
53 vendorlib="/Network/Library/Perl/${version}";
54 # 4BSD uses ${prefix}/share/man, not ${prefix}/man.
55 man1dir='/usr/share/man/man1';
56 man3dir='/usr/share/man/man3';
b69885a6 57 # But users' installs shouldn't touch the system man pages.
8d4e7e39 58 # Transient obsoleted style.
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59 siteman1='/usr/local/share/man/man1';
60 siteman3='/usr/local/share/man/man3';
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61 # New style.
62 siteman1dir='/usr/local/share/man/man1';
63 siteman3dir='/usr/local/share/man/man3';
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64 ;;
65 *) # Anything else; use non-system directories, use Configure defaults
66 ;;
67esac
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68
69##
70# Tool chain settings
71##
72
73# Since we can build fat, the archname doesn't need the processor type
74archname='darwin';
75
76# nm works.
77usenm='true';
78
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79case "$optimize" in
80'')
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81# Optimizing for size also mean less resident memory usage on the part
82# of Perl. Apple asserts that this is a more important optimization than
83# saving on CPU cycles. Given that memory speed has not increased at
84# pace with CPU speed over time (on any platform), this is probably a
85# reasonable assertion.
21328108 86if [ -z "${optimize}" ]; then
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87 case "`${cc:-gcc} -v 2>&1`" in
88 *"gcc version 3."*) optimize='-Os' ;;
89 *) optimize='-O3' ;;
21328108 90 esac
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91else
92 optimize='-O3'
23131aa4 93fi
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94;;
95esac
f556e5b9 96
21328108 97# -fno-common because common symbols are not allowed in MH_DYLIB
6239f2da 98# -DPERL_DARWIN: apparently the __APPLE__ is not sanctioned by Apple
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99# as the way to differentiate Mac OS X. (The official line is that
100# *no* cpp symbol does differentiate Mac OS X.)
00e89ad4 101ccflags="${ccflags} -fno-common -DPERL_DARWIN"
f556e5b9 102
4e644a1e 103# At least on Darwin 1.3.x:
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104#
105# # define INT32_MIN -2147483648
106# int main () {
107# double a = INT32_MIN;
108# printf ("INT32_MIN=%g\n", a);
109# return 0;
110# }
111# will output:
112# INT32_MIN=2.14748e+09
113# Note that the INT32_MIN has become positive.
114# INT32_MIN is set in /usr/include/stdint.h by:
115# #define INT32_MIN -2147483648
116# which seems to break the gcc. Defining INT32_MIN as (-2147483647-1)
117# seems to work. INT64_MIN seems to be similarly broken.
118# -- Nicholas Clark, Ken Williams, and Edward Moy
119#
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120# This seems to have been fixed since at least Mac OS X 10.1.3,
121# stdint.h defining INT32_MIN as (-INT32_MAX-1)
122# -- Edward Moy
123#
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124case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
125 *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
65fe0b2a 126esac
ccf87481 127
21328108 128# Avoid Apple's cpp precompiler, better for extensions
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129if [ "X`echo | ${cc} -no-cpp-precomp -E - 2>&1 >/dev/null`" = "X" ]; then
130 cppflags="${cppflags} -no-cpp-precomp"
835bc3f3 131
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132 # This is necessary because perl's build system doesn't
133 # apply cppflags to cc compile lines as it should.
134 ccflags="${ccflags} ${cppflags}"
135fi
4f8ddd77 136
00371ed5 137# Known optimizer problems.
f5520784 138case "`cc -v 2>&1`" in
21328108 139 *"3.1 20020105"*) toke_cflags='optimize=""' ;;
00371ed5 140esac
2ece6c11 141
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142# Shared library extension is .dylib.
143# Bundle extension is .bundle.
144ld='cc';
145so='dylib';
146dlext='bundle';
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147usedl='define';
148
149# 10.4 can use dlopen.
150# 10.4 broke poll().
151case "$osvers" in
152[1-7].*)
153 dlsrc='dl_dyld.xs';
154 ;;
155*)
156 dlsrc='dl_dlopen.xs';
157 d_poll='undef';
158 i_poll='undef';
159 ;;
160esac
161
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162case "$ccdlflags" in # If passed in from command line, presume user knows best
163'')
164 cccdlflags=' '; # space, not empty, because otherwise we get -fpic
165;;
166esac
167
21328108 168# Perl bundles do not expect two-level namespace, added in Darwin 1.4.
986530ea 169# But starting from perl 5.8.1/Darwin 7 the default is the two-level.
f29f446b 170case "$osvers" in
cb3fc426 1711.[0-3].*)
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172 lddlflags="${ldflags} -bundle -undefined suppress"
173 ;;
1741.*)
175 ldflags="${ldflags} -flat_namespace"
176 lddlflags="${ldflags} -bundle -undefined suppress"
177 ;;
178[2-6].*)
179 ldflags="${ldflags} -flat_namespace"
180 lddlflags="${ldflags} -bundle -undefined suppress"
181 ;;
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182*)
183 lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
986530ea 184 case "$ld" in
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185 *MACOSX_DEVELOPMENT_TARGET*) ;;
186 *) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
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187 esac
188 ;;
f29f446b 189esac
f556e5b9 190ldlibpthname='DYLD_LIBRARY_PATH';
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191
192# useshrplib=true results in much slower startup times.
763754f3 193# 'false' is the default value. Use Configure -Duseshrplib to override.
f556e5b9 194
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195cat > UU/archname.cbu <<'EOCBU'
196# This script UU/archname.cbu will get 'called-back' by Configure
197# after it has otherwise determined the architecture name.
198case "$ldflags" in
986530ea 199*"-flat_namespace"*) ;; # Backward compat, be flat.
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200# If we are using two-level namespace, we will munge the archname to show it.
201*) archname="${archname}-2level" ;;
202esac
203EOCBU
204
381aa1c3 205# 64-bit addressing support. Currently strictly experimental. DFD 2005-06-06
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206case "$use64bitall" in
207$define|true|[yY]*)
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208case "$osvers" in
209[1-7].*)
210 cat <<EOM >&4
211
212
213
214*** 64-bit addressing is not supported for Mac OS X versions
215*** below 10.4 ("Tiger") or Darwin versions below 8. Please try
c6eb6e8a 216*** again without -Duse64bitall. (-Duse64bitint will work, however.)
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217
218EOM
219 exit 1
220 ;;
221*)
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222 case "$osvers" in
223 8.*)
224 cat <<EOM >&4
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225
226
227
228*** Perl 64-bit addressing support is experimental for Mac OS X
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229*** 10.4 ("Tiger") and Darwin version 8. System V IPC is disabled
230*** due to problems with the 64-bit versions of msgctl, semctl,
231*** and shmctl. You should also expect the following test failures:
232***
3831a787 233*** ext/threads-shared/t/wait (threaded builds only)
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234
235EOM
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236
237 [ "$d_msgctl" ] || d_msgctl='undef'
238 [ "$d_semctl" ] || d_semctl='undef'
239 [ "$d_shmctl" ] || d_shmctl='undef'
240 ;;
241 esac
242
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243 case `uname -p` in
244 powerpc) arch=ppc64 ;;
245 i386) arch=x86_64 ;;
246 *) cat <<EOM >&4
247
248*** Don't recognize processor, can't specify 64 bit compilation.
249
250EOM
251 ;;
252 esac
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253 for var in ccflags cppflags ld ldflags
254 do
3fe25e0f 255 eval $var="\$${var}\ -arch\ $arch"
381aa1c3 256 done
ee94f810 257
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258 ;;
259esac
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260;;
261esac
381aa1c3 262
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263##
264# System libraries
265##
266
267# vfork works
268usevfork='true';
269
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270# malloc wrap works
271case "$usemallocwrap" in
272'') usemallocwrap='define' ;;
273esac
274
e88d9d51 275# our malloc works (but allow users to override)
ec5333ab 276case "$usemymalloc" in
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277'') usemymalloc='n' ;;
278esac
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279# However sbrk() returns -1 (failure) somewhere in lib/unicore/mktables at
280# around 14M, so we need to use system malloc() as our sbrk()
281malloc_cflags='ccflags="-DUSE_PERL_SBRK -DPERL_SBRK_VIA_MALLOC $ccflags"'
2ece6c11 282
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283# Locales aren't feeling well.
284LC_ALL=C; export LC_ALL;
14c11978 285LANG=C; export LANG;
d235852b 286
2590a1d7 287#
14c11978 288# The libraries are not threadsafe as of OS X 10.1.
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289#
290# Fix when Apple fixes libc.
291#
3db8f154 292case "$usethreads$useithreads" in
21328108 293 *define*)
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294 case "$osvers" in
295 [12345].*) cat <<EOM >&4
296
297
2590a1d7 298
4f8ddd77 299*** Warning, there might be problems with your libraries with
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300*** regards to threading. The test ext/threads/t/libc.t is likely
301*** to fail.
4f8ddd77 302
2590a1d7 303EOM
21328108 304 ;;
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305 *) usereentrant='define';;
306 esac
307
2590a1d7 308esac
835bc3f3 309
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310# Fink can install a GDBM library that claims to have the ODBM interfaces
311# but Perl dynaloader cannot for some reason use that library. We don't
312# really need ODBM_FIle, though, so let's just hint ODBM away.
313i_dbm=undef;
314
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315# Configure doesn't detect ranlib on Tiger properly.
316# NeilW says this should be acceptable on all darwin versions.
317ranlib='ranlib'
318
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319##
320# Build process
321##
322
323# Case-insensitive filesystems don't get along with Makefile and
324# makefile in the same place. Since Darwin uses GNU make, this dodges
325# the problem.
326firstmakefile=GNUmakefile;