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Tests for change #20367 (and change use overload; to
[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
16# This was previously used in all but causes three cases
17# (no -Ddprefix=, -Dprefix=/usr, -Dprefix=/some/thing/else)
18# but that caused too much grief.
19# vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules
20
21# BSD paths
22case "$prefix" in
23'') # Default install; use non-system directories
24 prefix='/usr/local';
25 siteprefix='/usr/local';
26 ;;
27'/usr') # We are building/replacing the built-in perl
28 prefix='/';
29 installprefix='/';
30 bin='/usr/bin';
31 sitebin='/usr/bin';
32 installusrbinperl='define'; # You knew what you were doing.
33 privlib="/System/Library/Perl/${version}";
34 sitelib="/Library/Perl/${version}";
35 vendorprefix='/';
36 usevendorprefix='define';
37 vendorbin='/usr/bin';
38 vendorscript='/usr/bin';
39 vendorlib="/Network/Library/Perl/${version}";
40 # 4BSD uses ${prefix}/share/man, not ${prefix}/man.
41 man1dir='/usr/share/man/man1';
42 man3dir='/usr/share/man/man3';
43 ;;
44 *) # Anything else; use non-system directories, use Configure defaults
45 ;;
46esac
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47
48##
49# Tool chain settings
50##
51
52# Since we can build fat, the archname doesn't need the processor type
53archname='darwin';
54
55# nm works.
56usenm='true';
57
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58case "$optimize" in
59'')
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60# Optimizing for size also mean less resident memory usage on the part
61# of Perl. Apple asserts that this is a more important optimization than
62# saving on CPU cycles. Given that memory speed has not increased at
63# pace with CPU speed over time (on any platform), this is probably a
64# reasonable assertion.
21328108 65if [ -z "${optimize}" ]; then
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66 case "`${cc:-gcc} -v 2>&1`" in
67 *"gcc version 3."*) optimize='-Os' ;;
68 *) optimize='-O3' ;;
21328108 69 esac
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70else
71 optimize='-O3'
23131aa4 72fi
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73;;
74esac
f556e5b9 75
faf52077 76# -pipe: makes compilation go faster.
21328108 77# -fno-common because common symbols are not allowed in MH_DYLIB
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78# -DDARWIN: apparently the __APPLE__ is not sanctioned by Apple
79# as the way to differentiate Mac OS X. (The official line is that
80# *no* cpp symbol does differentiate Mac OS X.)
81ccflags="${ccflags} -pipe -fno-common -DDARWIN"
f556e5b9 82
4e644a1e 83# At least on Darwin 1.3.x:
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84#
85# # define INT32_MIN -2147483648
86# int main () {
87# double a = INT32_MIN;
88# printf ("INT32_MIN=%g\n", a);
89# return 0;
90# }
91# will output:
92# INT32_MIN=2.14748e+09
93# Note that the INT32_MIN has become positive.
94# INT32_MIN is set in /usr/include/stdint.h by:
95# #define INT32_MIN -2147483648
96# which seems to break the gcc. Defining INT32_MIN as (-2147483647-1)
97# seems to work. INT64_MIN seems to be similarly broken.
98# -- Nicholas Clark, Ken Williams, and Edward Moy
99#
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100# This seems to have been fixed since at least Mac OS X 10.1.3,
101# stdint.h defining INT32_MIN as (-INT32_MAX-1)
102# -- Edward Moy
103#
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104case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
105 *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
65fe0b2a 106esac
ccf87481 107
21328108 108# Avoid Apple's cpp precompiler, better for extensions
8f4f83ba 109cppflags="${cppflags} -no-cpp-precomp"
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110
111# This is necessary because perl's build system doesn't
112# apply cppflags to cc compile lines as it should.
113ccflags="${ccflags} ${cppflags}"
4f8ddd77 114
00371ed5 115# Known optimizer problems.
f5520784 116case "`cc -v 2>&1`" in
21328108 117 *"3.1 20020105"*) toke_cflags='optimize=""' ;;
00371ed5 118esac
2ece6c11 119
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120# Shared library extension is .dylib.
121# Bundle extension is .bundle.
122ld='cc';
123so='dylib';
124dlext='bundle';
125dlsrc='dl_dyld.xs'; usedl='define';
c374061b 126cccdlflags=' '; # space, not empty, because otherwise we get -fpic
21328108 127# Perl bundles do not expect two-level namespace, added in Darwin 1.4.
986530ea 128# But starting from perl 5.8.1/Darwin 7 the default is the two-level.
f29f446b 129case "$osvers" in
cb3fc426 1301.[0-3].*)
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131 lddlflags="${ldflags} -bundle -undefined suppress"
132 ;;
1331.*)
134 ldflags="${ldflags} -flat_namespace"
135 lddlflags="${ldflags} -bundle -undefined suppress"
136 ;;
137[2-6].*)
138 ldflags="${ldflags} -flat_namespace"
139 lddlflags="${ldflags} -bundle -undefined suppress"
140 ;;
141*) lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
142 case "$ld" in
143 *MACOSX_DEVELOPMENT_TARGET*) ;;
144 *) ld="MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
145 esac
146 ;;
f29f446b 147esac
f556e5b9 148ldlibpthname='DYLD_LIBRARY_PATH';
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149
150# useshrplib=true results in much slower startup times.
763754f3 151# 'false' is the default value. Use Configure -Duseshrplib to override.
f556e5b9 152
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153cat > UU/archname.cbu <<'EOCBU'
154# This script UU/archname.cbu will get 'called-back' by Configure
155# after it has otherwise determined the architecture name.
156case "$ldflags" in
986530ea 157*"-flat_namespace"*) ;; # Backward compat, be flat.
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158# If we are using two-level namespace, we will munge the archname to show it.
159*) archname="${archname}-2level" ;;
160esac
161EOCBU
162
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163##
164# System libraries
165##
166
167# vfork works
168usevfork='true';
169
170# malloc works
171usemymalloc='n';
2ece6c11 172
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173# Locales aren't feeling well.
174LC_ALL=C; export LC_ALL;
14c11978 175LANG=C; export LANG;
d235852b 176
2590a1d7 177#
14c11978 178# The libraries are not threadsafe as of OS X 10.1.
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179#
180# Fix when Apple fixes libc.
181#
3db8f154 182case "$usethreads$useithreads" in
21328108 183 *define*)
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184 case "$osvers" in
185 [12345].*) cat <<EOM >&4
186
187
2590a1d7 188
4f8ddd77 189*** Warning, there might be problems with your libraries with
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190*** regards to threading. The test ext/threads/t/libc.t is likely
191*** to fail.
4f8ddd77 192
2590a1d7 193EOM
21328108 194 ;;
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195 *) usereentrant='define';;
196 esac
197
2590a1d7 198esac
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199
200##
201# Build process
202##
203
204# Case-insensitive filesystems don't get along with Makefile and
205# makefile in the same place. Since Darwin uses GNU make, this dodges
206# the problem.
207firstmakefile=GNUmakefile;