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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
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 "$prefix" in
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18 '')
19 # Default install; use non-system directories
20 prefix='/usr/local'; # Built-in perl uses /usr
21 siteprefix='/usr/local';
835bc3f3 22 vendorprefix='/usr'; usevendorprefix='define';
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23
24 # Where to put modules.
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25 sitelib="/Library/Perl/${version}"; # FIXME: Want "/Network/Perl/${version}" also
26 vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules
21328108 27 ;;
835bc3f3 28
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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.
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35 sitelib="/Library/Perl/${version}"; # FIXME: Want "/Network/Perl/${version}" also
36 vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules
21328108 37 ;;
e32f0149 38esac
f556e5b9 39
187122cb 40# 4BSD uses ${prefix}/share/man, not ${prefix}/man.
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41man1dir="${prefix}/share/man/man1";
42man3dir="${prefix}/share/man/man3";
43
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44##
45# Tool chain settings
46##
47
48# Since we can build fat, the archname doesn't need the processor type
49archname='darwin';
50
51# nm works.
52usenm='true';
53
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54case "$optimize" in
55'')
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56# Optimizing for size also mean less resident memory usage on the part
57# of Perl. Apple asserts that this is a more important optimization than
58# saving on CPU cycles. Given that memory speed has not increased at
59# pace with CPU speed over time (on any platform), this is probably a
60# reasonable assertion.
21328108 61if [ -z "${optimize}" ]; then
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62 case "`${cc:-gcc} -v 2>&1`" in
63 *"gcc version 3."*) optimize='-Os' ;;
64 *) optimize='-O3' ;;
21328108 65 esac
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66else
67 optimize='-O3'
23131aa4 68fi
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69;;
70esac
f556e5b9 71
faf52077 72# -pipe: makes compilation go faster.
21328108 73# -fno-common because common symbols are not allowed in MH_DYLIB
0ac8ade1 74ccflags="${ccflags} -pipe -fno-common"
f556e5b9 75
4e644a1e 76# At least on Darwin 1.3.x:
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77#
78# # define INT32_MIN -2147483648
79# int main () {
80# double a = INT32_MIN;
81# printf ("INT32_MIN=%g\n", a);
82# return 0;
83# }
84# will output:
85# INT32_MIN=2.14748e+09
86# Note that the INT32_MIN has become positive.
87# INT32_MIN is set in /usr/include/stdint.h by:
88# #define INT32_MIN -2147483648
89# which seems to break the gcc. Defining INT32_MIN as (-2147483647-1)
90# seems to work. INT64_MIN seems to be similarly broken.
91# -- Nicholas Clark, Ken Williams, and Edward Moy
92#
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93# This seems to have been fixed since at least Mac OS X 10.1.3,
94# stdint.h defining INT32_MIN as (-INT32_MAX-1)
95# -- Edward Moy
96#
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97case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
98 *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
65fe0b2a 99esac
ccf87481 100
21328108 101# Avoid Apple's cpp precompiler, better for extensions
8f4f83ba 102cppflags="${cppflags} -no-cpp-precomp"
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103
104# This is necessary because perl's build system doesn't
105# apply cppflags to cc compile lines as it should.
106ccflags="${ccflags} ${cppflags}"
4f8ddd77 107
00371ed5 108# Known optimizer problems.
f5520784 109case "`cc -v 2>&1`" in
21328108 110 *"3.1 20020105"*) toke_cflags='optimize=""' ;;
00371ed5 111esac
2ece6c11 112
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113# Shared library extension is .dylib.
114# Bundle extension is .bundle.
115ld='cc';
116so='dylib';
117dlext='bundle';
118dlsrc='dl_dyld.xs'; usedl='define';
c374061b 119cccdlflags=' '; # space, not empty, because otherwise we get -fpic
21328108 120# Perl bundles do not expect two-level namespace, added in Darwin 1.4.
f29f446b 121case "$osvers" in
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122 1.[0-3].*) ;;
123 *) ldflags="${ldflags} -flat_namespace" ;;
f29f446b 124esac
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125lddlflags="${ldflags} -bundle -undefined suppress";
126ldlibpthname='DYLD_LIBRARY_PATH';
127useshrplib='true';
128
129##
130# System libraries
131##
132
133# vfork works
134usevfork='true';
135
136# malloc works
137usemymalloc='n';
2ece6c11 138
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139# Locales aren't feeling well.
140LC_ALL=C; export LC_ALL;
14c11978 141LANG=C; export LANG;
d235852b 142
2590a1d7 143#
14c11978 144# The libraries are not threadsafe as of OS X 10.1.
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145#
146# Fix when Apple fixes libc.
147#
3db8f154 148case "$usethreads$useithreads" in
21328108 149 *define*)
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150 case "$osvers" in
151 [12345].*) cat <<EOM >&4
152
153
2590a1d7 154
4f8ddd77 155*** Warning, there might be problems with your libraries with
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156*** regards to threading. The test ext/threads/t/libc.t is likely
157*** to fail.
4f8ddd77 158
2590a1d7 159EOM
21328108 160 ;;
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161 *) usereentrant='define';;
162 esac
163
2590a1d7 164esac
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165
166##
167# Build process
168##
169
170# Case-insensitive filesystems don't get along with Makefile and
171# makefile in the same place. Since Darwin uses GNU make, this dodges
172# the problem.
173firstmakefile=GNUmakefile;