[Octave-bug-tracker] [bug #43319] Octave dev version fails to build with --enable-64

[John W. Eaton]

Follow-up Comment #13, bug #43319 (project octave):

The default for most GNU/linux blas libraries (and other libraries that rely
on them) is to use 32-bit indexing even on 64-bit systems like x86_64.  I
don't know how to tell what library has been dynamically linked from within
Octave itself or how to determine whether 32-bit indexing is being used other
than perhaps to try a test call to a blas function and see if it does the
right thing.

In any case, I built Octave from the default branch (hg id ec037d41da06) using
the mxe-octave configure command


./configure --enable-system-gcc --enable-64 --enable-lib64-directory
--disable-jit --enable-native-build --enable-pic-flag --host=gnu-linux


I also had to remove the gnulib-isatty patch as it is no longer needed.  And I
added the following patch


diff -uNr a/libgui/graphics/QtHandlesUtils.cc
b/libgui/graphics/QtHandlesUtils.cc
--- a/libgui/graphics/QtHandlesUtils.cc 2014-08-01 14:07:55.000000000 -0400
+++ b/libgui/graphics/QtHandlesUtils.cc 2014-10-06 08:56:32.015644544 -0400
@@ -220,8 +220,8 @@
 
   if (dv.length () == 3 && dv(2) == 3)
     {
-      int w = qMin (dv(1), width);
-      int h = qMin (dv(0), height);
+      int w = qMin (dv(1), static_cast<octave_idx_type> (width));
+      int h = qMin (dv(0), static_cast<octave_idx_type> (height));
 
       int x_off = (w < width ? (width - w) / 2 : 0);
       int y_off = (h < height ? (height - h) / 2 : 0);


Starting the resulting Octave binary and executing __run_test_suite__ produced
the following results for me:


  PASS     12377
  FAIL         0
  XFAIL       10
  SKIPPED     66


I think the skipped tests are due to disabling qhull and the jit compiler.

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