patches/glibc/ports-2.10.1/390-cross-compile-nptl.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Tue Jul 31 22:27:29 2012 +0200 (2012-07-31)
changeset 3018 7776e8369284
permissions -rw-r--r--
complibs/cloog: create missing m4 dir

Because we now patch configure.in and configure, the Makefile quicks
in a re-build rule as the source files are now more recent than the
bundled generated files, and that fails because the m4 directory
is missing, although on some systems where aclocal is not installed,
the re-build rule does nothing (except a warning).

Always create tht directory.

Reported-by: Per Arnold Blaasmo <per-arnold.blaasmo@atmel.com>
[Also thanks to Thomas De Schampheleire <patrickdepinguin@gmail.com>
for some digging works on this issue]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
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A little hack for cross-compiling NPTL
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http://sourceware.org/ml/libc-alpha/2005-02/msg00043.html
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diff -durN glibc-2.10.1.orig/nptl/sysdeps/pthread/configure glibc-2.10.1/nptl/sysdeps/pthread/configure
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--- glibc-2.10.1.orig/nptl/sysdeps/pthread/configure	2009-05-17 14:19:31.000000000 +0200
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+++ glibc-2.10.1/nptl/sysdeps/pthread/configure	2009-11-13 00:50:43.000000000 +0100
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@@ -78,6 +78,10 @@
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 fi
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 { echo "$as_me:$LINENO: result: $libc_cv_forced_unwind" >&5
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 echo "${ECHO_T}$libc_cv_forced_unwind" >&6; }
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+if test $libc_cv_forced_unwind = no -a $build_cpu != $host_cpu; then
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+  echo "$as_me:$LINENO: forcing libc_cv_forced_unwind = yes for cross-compile"
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+  libc_cv_forced_unwind=yes
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+fi
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 if test $libc_cv_forced_unwind = yes; then
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   cat >>confdefs.h <<\_ACEOF
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 #define HAVE_FORCED_UNWIND 1
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@@ -141,6 +145,10 @@
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 { echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5
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 echo "${ECHO_T}$libc_cv_c_cleanup" >&6; }
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   CFLAGS="$old_CFLAGS"
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+  if test $libc_cv_c_cleanup = no -a $build_cpu != $host_cpu; then
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+    echo "$as_me:$LINENO: result: forcing libc_cv_c_cleanup = yes for cross-compile"
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+    libc_cv_c_cleanup=yes
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+  fi
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   if test $libc_cv_c_cleanup = no; then
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     { { echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5
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 echo "$as_me: error: the compiler must support C cleanup handling" >&2;}
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diff -durN glibc-2.10.1.orig/nptl/sysdeps/pthread/configure.in glibc-2.10.1/nptl/sysdeps/pthread/configure.in
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--- glibc-2.10.1.orig/nptl/sysdeps/pthread/configure.in	2003-12-03 07:50:01.000000000 +0100
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+++ glibc-2.10.1/nptl/sysdeps/pthread/configure.in	2009-11-13 00:50:43.000000000 +0100
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@@ -28,6 +28,9 @@
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 struct _Unwind_Context *context;
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 _Unwind_GetCFA (context)],
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 libc_cv_forced_unwind=yes, libc_cv_forced_unwind=no)])
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+if test $libc_cv_forced_unwind = no -a $build_cpu != $host_cpu; then
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+  libc_cv_forced_unwind=yes
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+fi
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 if test $libc_cv_forced_unwind = yes; then
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   AC_DEFINE(HAVE_FORCED_UNWIND)
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 dnl Check for C cleanup handling.
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@@ -41,6 +44,9 @@
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   puts ("test")],
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 libc_cv_c_cleanup=yes, libc_cv_c_cleanup=no)])
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   CFLAGS="$old_CFLAGS"
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+  if test $libc_cv_c_cleanup = no -a $build_cpu != $host_cpu; then
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+    libc_cv_c_cleanup=yes
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+  fi
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   if test $libc_cv_c_cleanup = no; then
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     AC_MSG_ERROR([the compiler must support C cleanup handling])
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   fi