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<title>[142890] trunk/dports/devel/gmp/Portfile</title>
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<dt>Revision</dt> <dd><a href="https://trac.macports.org/changeset/142890">142890</a></dd>
<dt>Author</dt> <dd>mcalhoun@macports.org</dd>
<dt>Date</dt> <dd>2015-11-26 06:31:05 -0800 (Thu, 26 Nov 2015)</dd>
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<h3>Log Message</h3>
<pre>gmp: attempt to future-proof and fully document CPU detection</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkdportsdevelgmpPortfile">trunk/dports/devel/gmp/Portfile</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunkdportsdevelgmpPortfile"></a>
<div class="modfile"><h4>Modified: trunk/dports/devel/gmp/Portfile (142889 => 142890)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/dports/devel/gmp/Portfile        2015-11-26 12:19:46 UTC (rev 142889)
+++ trunk/dports/devel/gmp/Portfile        2015-11-26 14:31:05 UTC (rev 142890)
</span><span class="lines">@@ -87,18 +87,41 @@
</span><span class="cx"> test.run yes
</span><span class="cx"> test.target check
</span><span class="cx">
</span><ins>+# config.guess: "Print the host system CPU-VENDOR-OS."
+# config.guess calls configfsf.guess and then tries to improve the result
+#
+# prior to 5.0.2, configfsf.guess returned
+# i386-apple-darwinX.X.X or powerpc-apple-darwinX.X.X
+# even on 64-bit processors
+# if config.guess were unable to improve on the result
+# (e.g. a new unrecognized processor), then the configure script
+# used i386 or powerpc as the CPU type and a 64-bit build attempt
+# resulted in an error (see #28892)
+# as of 5.0.2, configfsf.guess can return
+# x86_64-apple-darwinX.X.X and powerpc64-apple-darwinX.X.X, which,
+# if not improved, would at least produce a (slow) 64-bit build
+#
+# up to 6.0.0a, all improved CPU types on x86 macs were of the form
+# core2 or corei* (coreisbr for Sandy Bridge, coreihwl for Haswell, etc.)
+# starting with 6.1.0, improved CPU types on x86 macs have less uniform
+# names (sandybridge for Sandy Bridge, haswell for Haswell, etc.)
+#
+# in an attempt to accommodate all situations,
+# test if the CPU was improved and warn if it was not
+#
+pre-configure {
+ set build_triplet [split [exec -ignorestderr /usr/bin/env CC=${configure.cc} ${worksrcpath}/config.guess] -]
+ set build_cpu [lindex $build_triplet 0]
+ if { ${build_cpu} eq "x86_64" || ${build_cpu} eq "i386" || ${build_cpu} eq "powerpc64" || ${build_cpu} eq "powerpc" } {
+ ui_warn "No processor dependent assembly code being used. gmp might be slower."
+ # version 5.0.2 should make the following unnecessary
+ #configure.args-append --build=core2-[join [lrange $build_triplet 1 end] -]
+ }
+}
+
</ins><span class="cx"> if {![variant_isset universal]} {
</span><span class="cx"> if {${build_arch} eq "x86_64"} {
</span><span class="cx"> configure.env-append ABI=64
</span><del>- # Newer processors may not be detected correctly.
- pre-configure {
- set build_triplet [split [exec -ignorestderr /usr/bin/env CC=${configure.cc} ${worksrcpath}/config.guess] -]
- set build_cpu [lindex $build_triplet 0]
- if { ${build_cpu} ne "core2" && ![string match "corei*" ${build_cpu}] } {
- ui_warn "No processor dependent assembly code being used. gmp might be slower."
- configure.args-append --build=core2-[join [lrange $build_triplet 1 end] -]
- }
- }
</del><span class="cx"> } elseif {${build_arch} eq "ppc64"} {
</span><span class="cx"> configure.env-append ABI=mode64
</span><span class="cx"> } else {
</span></span></pre>
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