Ticket #11226: sympow-1.018.1.p8-p9.diff

SPKG.txt

@@ -46 +46 @@
 
 == Changelog ==
 
+=== sympow-1.018.1.p9 (Jeroen Demeyer, 2 May 2011) ===
+ * #11226: Add flag -fno-expensive-optimizations when compiling with
+   gcc 4.6.x on a ia64 system.  See also gcc bugzilla:
+   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48823
+
 === sympow-1.018.1.p8 (David Kirkby, 21st August 2010) ===
  * #9703 + #9166 Implement inline assembly code to set the control
    word of the floating point processor to round to an 

spkg-install

@@ -21 +21 @@
    export LDFLAGS
 fi
 
+# Workaround problems with gcc 4.6.0 on ia64 systems:
+if [ "x`uname -m`" = "xia64" ] && [ "x`$SAGE_LOCAL/bin/testcc.sh $CC`" = xGCC ] ; then
+    if $CC -dumpversion 2>/dev/null |grep >/dev/null '^4\.6\.' ; then
+        echo "Detected GCC version `$CC -dumpversion` on Itanium. Adding"
+        echo "work-around to fix a bug when sympow is compiled with gcc 4.6.0"
+        CFLAGS="$CFLAGS -fno-expensive-optimizations"
+        export CFLAGS
+    fi
+fi
+
+
 # Add some code to disable the extended precision of Intel
 # x86 based floating point processors. The code in SYMPOW
 # already works for Linux, so there's no need to do that.