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The debugging aid #19182 didn't.
[perl5.git] / hints / darwin.sh
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1##
2# Darwin (Mac OS) hints
437cf188 3# Wilfredo Sanchez <wsanchez@mit.edu>
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4##
5
6##
7# Paths
8##
9
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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
f556e5b9 16# BSD paths
e32f0149 17case "$prefix" in
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18 '')
19 # Default install; use non-system directories
20 prefix='/usr/local'; # Built-in perl uses /usr
21 siteprefix='/usr/local';
22 vendorprefix='/usr/local'; usevendorprefix='define';
23
24 # Where to put modules.
25 privlib="/Library/Perl/${version}"; # Built-in perl uses /System/Library/Perl
26 sitelib="/Library/Perl/${version}";
27 vendorlib="/Network/Library/Perl/${version}";
28 ;;
29 '/usr')
30 # We are building/replacing the built-in perl
31 siteprefix='/usr/local';
32 vendorprefix='/usr/local'; usevendorprefix='define';
33
34 # Where to put modules.
35 privlib="/System/Library/Perl/${version}";
36 sitelib="/Library/Perl/${version}";
37 vendorlib="/Network/Library/Perl/${version}";
38 ;;
e32f0149 39esac
f556e5b9 40
187122cb 41# 4BSD uses ${prefix}/share/man, not ${prefix}/man.
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42man1dir="${prefix}/share/man/man1";
43man3dir="${prefix}/share/man/man3";
44
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45##
46# Tool chain settings
47##
48
49# Since we can build fat, the archname doesn't need the processor type
50archname='darwin';
51
52# nm works.
53usenm='true';
54
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55# Optimizing for size also mean less resident memory usage on the part
56# of Perl. Apple asserts that this is a more important optimization than
57# saving on CPU cycles. Given that memory speed has not increased at
58# pace with CPU speed over time (on any platform), this is probably a
59# reasonable assertion.
21328108 60if [ -z "${optimize}" ]; then
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61 case "`${cc:-gcc} -v 2>&1`" in
62 *"gcc version 3."*) optimize='-Os' ;;
63 *) optimize='-O3' ;;
21328108 64 esac
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65else
66 optimize='-O3'
23131aa4 67fi
f556e5b9 68
c8037037 69
faf52077 70# -pipe: makes compilation go faster.
21328108 71# -fno-common because common symbols are not allowed in MH_DYLIB
0ac8ade1 72ccflags="${ccflags} -pipe -fno-common"
f556e5b9 73
4e644a1e 74# At least on Darwin 1.3.x:
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75#
76# # define INT32_MIN -2147483648
77# int main () {
78# double a = INT32_MIN;
79# printf ("INT32_MIN=%g\n", a);
80# return 0;
81# }
82# will output:
83# INT32_MIN=2.14748e+09
84# Note that the INT32_MIN has become positive.
85# INT32_MIN is set in /usr/include/stdint.h by:
86# #define INT32_MIN -2147483648
87# which seems to break the gcc. Defining INT32_MIN as (-2147483647-1)
88# seems to work. INT64_MIN seems to be similarly broken.
89# -- Nicholas Clark, Ken Williams, and Edward Moy
90#
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91# This seems to have been fixed since at least Mac OS X 10.1.3,
92# stdint.h defining INT32_MIN as (-INT32_MAX-1)
93# -- Edward Moy
94#
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95case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
96 *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
65fe0b2a 97esac
ccf87481 98
8f4f83ba 99# cppflags='-traditional-cpp';
21328108 100# Avoid Apple's cpp precompiler, better for extensions
8f4f83ba 101cppflags="${cppflags} -no-cpp-precomp"
65fe0b2a 102# and ccflags needs them as well since we don't use cpp directly
21328108 103# -- If this is necessary, it's a bug. -wsv
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104ccflags="${ccflags} -no-cpp-precomp"
105
00371ed5 106# Known optimizer problems.
f5520784 107case "`cc -v 2>&1`" in
21328108 108 *"3.1 20020105"*) toke_cflags='optimize=""' ;;
00371ed5 109esac
2ece6c11 110
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111# Shared library extension is .dylib.
112# Bundle extension is .bundle.
113ld='cc';
114so='dylib';
115dlext='bundle';
116dlsrc='dl_dyld.xs'; usedl='define';
c374061b 117cccdlflags=' '; # space, not empty, because otherwise we get -fpic
21328108 118# Perl bundles do not expect two-level namespace, added in Darwin 1.4.
f29f446b 119case "$osvers" in
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120 1.[0-3].*) ;;
121 *) ldflags="${ldflags} -flat_namespace" ;;
f29f446b 122esac
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123lddlflags="${ldflags} -bundle -undefined suppress";
124ldlibpthname='DYLD_LIBRARY_PATH';
125useshrplib='true';
126
127##
128# System libraries
129##
130
131# vfork works
132usevfork='true';
133
134# malloc works
135usemymalloc='n';
2ece6c11 136
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137##
138# Build process
139##
140
141# Locales aren't feeling well.
142LC_ALL=C; export LC_ALL;
14c11978 143LANG=C; export LANG;
d235852b 144
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145# Case-insensitive filesystems don't get along with Makefile and
146# makefile in the same place. Since Darwin uses GNU make, this dodges
147# the problem.
d235852b 148firstmakefile=GNUmakefile;
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149
150#
14c11978 151# The libraries are not threadsafe as of OS X 10.1.
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152#
153# Fix when Apple fixes libc.
154#
3db8f154 155case "$usethreads$useithreads" in
21328108 156 *define*)
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157 case "$osvers" in
158 [12345].*) cat <<EOM >&4
159
160
2590a1d7 161
4f8ddd77 162*** Warning, there might be problems with your libraries with
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163*** regards to threading. The test ext/threads/t/libc.t is likely
164*** to fail.
4f8ddd77 165
2590a1d7 166EOM
21328108 167 ;;
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168 *) usereentrant='define';;
169 esac
170
2590a1d7 171esac