patches/binutils/2.11.2/gcc-pr3106.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun May 20 13:48:26 2007 +0000 (2007-05-20)
changeset 112 ea15433daba0
permissions -rw-r--r--
Ah! I finally have a progress bar that doesn't stall the build!
- pipe size in Linux is only 8*512=4096 bytes
- pipe size is not setable
- when the feeding process spits out data faster than the eating
process can read it, then the feeding process stalls after 4KiB
of data sent to the pipe
- for us, the progress bar would spawn a sub-shell every line,
and the sub-shell would in turn spawn a 'date' command.
Which was sloooww as hell, and would cause some kind of a
starvation: the pipe was full most of the time, and the
feeding process was stalled all this time.

Now, we use internal variables and a little hack based onan offset
to determine the elapsed time. Much faster this way, but still
CPU-intensive.
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See http://gcc.gnu.org/PR3106
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Backported from gcc-3.0.x
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Fixes error
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  .../binutils-2.11.2/libiberty/strerror.c:468: error: conflicting types for `sys_nerr'
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  /usr/include/stdio.h:258: error: previous declaration of `sys_nerr'
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  make[1]: *** [strerror.o] Error 1
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  make: *** [all-libiberty] Error 2
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on Mac OS X.
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--- binutils-2.11.2/libiberty/strerror.c.old	2004-03-24 16:23:19.000000000 -0800
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+++ binutils-2.11.2/libiberty/strerror.c	2004-03-24 16:23:48.000000000 -0800
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@@ -13,6 +13,7 @@
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    incompatible with our later declaration, perhaps by using const
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    attributes.  So we hide the declaration in errno.h (if any) using a
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    macro. */
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+#define sys_nerr sys_nerr__
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 #define sys_errlist sys_errlist__
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 #endif
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@@ -20,6 +21,7 @@
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 #include <errno.h>
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 #ifdef HAVE_SYS_ERRLIST
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+#undef sys_nerr
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 #undef sys_errlist
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 #endif
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