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1 | ## |
2 | # Darwin (Mac OS) hints |
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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. |
11 | perl_revision=`awk '/define[ ]+PERL_REVISION/ {print $3}' $src/patchlevel.h` |
12 | perl_version=`awk '/define[ ]+PERL_VERSION/ {print $3}' $src/patchlevel.h` |
13 | perl_subversion=`awk '/define[ ]+PERL_SUBVERSION/ {print $3}' $src/patchlevel.h` |
14 | version="${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/${version}"; # Apple-supplied modules |
20 | |
21 | # BSD paths |
22 | case "$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 ${prefix}/man. |
41 | man1dir='/usr/share/man/man1'; |
42 | man3dir='/usr/share/man/man3'; |
43 | ;; |
44 | *) # Anything else; use non-system directories, use Configure defaults |
45 | ;; |
46 | esac |
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47 | |
48 | ## |
49 | # Tool chain settings |
50 | ## |
51 | |
52 | # Since we can build fat, the archname doesn't need the processor type |
53 | archname='darwin'; |
54 | |
55 | # nm works. |
56 | usenm='true'; |
57 | |
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58 | case "$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. |
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65 | if [ -z "${optimize}" ]; then |
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66 | case "`${cc:-gcc} -v 2>&1`" in |
67 | *"gcc version 3."*) optimize='-Os' ;; |
68 | *) optimize='-O3' ;; |
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69 | esac |
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70 | else |
71 | optimize='-O3' |
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72 | fi |
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73 | ;; |
74 | esac |
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75 | |
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76 | # -pipe: makes compilation go faster. |
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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.) |
81 | ccflags="${ccflags} -pipe -fno-common -DDARWIN" |
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82 | |
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83 | # At least on Darwin 1.3.x: |
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84 | # |
85 | # # define INT32_MIN -2147483648 |
86 | # int main () { |
87 | # double a = INT32_MIN; |
88 | # printf ("INT32_MIN=%g\n", a); |
89 | # return 0; |
90 | # } |
91 | # will output: |
92 | # INT32_MIN=2.14748e+09 |
93 | # Note that the INT32_MIN has become positive. |
94 | # INT32_MIN is set in /usr/include/stdint.h by: |
95 | # #define INT32_MIN -2147483648 |
96 | # which seems to break the gcc. Defining INT32_MIN as (-2147483647-1) |
97 | # seems to work. INT64_MIN seems to be similarly broken. |
98 | # -- Nicholas Clark, Ken Williams, and Edward Moy |
99 | # |
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100 | # This seems to have been fixed since at least Mac OS X 10.1.3, |
101 | # stdint.h defining INT32_MIN as (-INT32_MAX-1) |
102 | # -- Edward Moy |
103 | # |
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104 | case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in |
105 | *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;; |
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106 | esac |
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107 | |
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108 | # Avoid Apple's cpp precompiler, better for extensions |
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109 | cppflags="${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. |
113 | ccflags="${ccflags} ${cppflags}" |
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114 | |
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115 | # Known optimizer problems. |
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116 | case "`cc -v 2>&1`" in |
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117 | *"3.1 20020105"*) toke_cflags='optimize=""' ;; |
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118 | esac |
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119 | |
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120 | # Shared library extension is .dylib. |
121 | # Bundle extension is .bundle. |
122 | ld='cc'; |
123 | so='dylib'; |
124 | dlext='bundle'; |
125 | dlsrc='dl_dyld.xs'; usedl='define'; |
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126 | cccdlflags=' '; # space, not empty, because otherwise we get -fpic |
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127 | # Perl bundles do not expect two-level namespace, added in Darwin 1.4. |
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128 | # But starting from perl 5.8.1/Darwin 7 the default is the two-level. |
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129 | case "$osvers" in |
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130 | 1.[0-3].*) |
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131 | lddlflags="${ldflags} -bundle -undefined suppress" |
132 | ;; |
133 | 1.*) |
134 | ldflags="${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 ${ld}" ;; |
145 | esac |
146 | ;; |
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147 | esac |
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148 | ldlibpthname='DYLD_LIBRARY_PATH'; |
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149 | |
150 | # useshrplib=true results in much slower startup times. |
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151 | # 'false' is the default value. Use Configure -Duseshrplib to override. |
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152 | |
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153 | cat > UU/archname.cbu <<'EOCBU' |
154 | # This script UU/archname.cbu will get 'called-back' by Configure |
155 | # after it has otherwise determined the architecture name. |
156 | case "$ldflags" in |
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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="${archname}-2level" ;; |
160 | esac |
161 | EOCBU |
162 | |
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163 | ## |
164 | # System libraries |
165 | ## |
166 | |
167 | # vfork works |
168 | usevfork='true'; |
169 | |
170 | # malloc works |
171 | usemymalloc='n'; |
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172 | |
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173 | # Locales aren't feeling well. |
174 | LC_ALL=C; export LC_ALL; |
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175 | LANG=C; export LANG; |
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176 | |
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177 | # |
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178 | # The libraries are not threadsafe as of OS X 10.1. |
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179 | # |
180 | # Fix when Apple fixes libc. |
181 | # |
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182 | case "$usethreads$useithreads" in |
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183 | *define*) |
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184 | case "$osvers" in |
185 | [12345].*) cat <<EOM >&4 |
186 | |
187 | |
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188 | |
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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. |
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192 | |
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193 | EOM |
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194 | ;; |
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195 | *) usereentrant='define';; |
196 | esac |
197 | |
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198 | esac |
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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. |
207 | firstmakefile=GNUmakefile; |