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To: vim_dev@googlegroups.com
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Subject: Patch 7.4.048
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Fcc: outbox
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From: Bram Moolenaar <Bram@moolenaar.net>
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Mime-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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------------
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Patch 7.4.048
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Problem: Recent clang version complains about -fno-strength-reduce.
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Solution: Add a configure check for the clang version. (Kazunobu Kuriyama)
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Files: src/configure.in, src/auto/configure
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*** ../vim-7.4.047/src/configure.in 2013-08-04 20:00:50.000000000 +0200
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--- src/configure.in 2013-10-02 17:56:25.000000000 +0200
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***************
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*** 62,67 ****
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--- 62,90 ----
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fi
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fi
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+ dnl clang-500.2.75 or around has abandoned -f[no-]strength-reduce and issues a
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+ dnl warning when that flag is passed to. Accordingly, adjust CFLAGS based on
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+ dnl the version number of the clang in use.
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+ dnl Note that this does not work to get the version of clang 3.1 or 3.2.
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+ AC_MSG_CHECKING(for recent clang version)
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+ CLANG_VERSION_STRING=`"$CC" --version 2>/dev/null | sed -n -e 's/^.*clang.*\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\).*$/\1/p'`
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+ if test x"$CLANG_VERSION_STRING" != x"" ; then
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+ CLANG_MAJOR=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/\([[0-9]][[0-9]]*\)\.[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*/\1/p'`
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+ CLANG_MINOR=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/[[0-9]][[0-9]]*\.\([[0-9]][[0-9]]*\)\.[[0-9]][[0-9]]*/\1/p'`
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+ CLANG_REVISION=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.\([[0-9]][[0-9]]*\)/\1/p'`
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+ CLANG_VERSION=`expr $CLANG_MAJOR '*' 1000000 '+' $CLANG_MINOR '*' 1000 '+' $CLANG_REVISION`
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+ AC_MSG_RESULT($CLANG_VERSION)
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+ dnl If you find the same issue with versions earlier than 500.2.75,
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+ dnl change the constant 500002075 below appropriately. To get the
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+ dnl integer corresponding to a version number, refer to the
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+ dnl definition of CLANG_VERSION above.
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+ if test "$CLANG_VERSION" -ge 500002075 ; then
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+ CFLAGS=`echo "$CFLAGS" | sed -n -e 's/-fno-strength-reduce/ /p'`
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+ fi
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+ else
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+ AC_MSG_RESULT(no)
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+ fi
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+
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dnl If configure thinks we are cross compiling, there might be something
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dnl wrong with the CC or CFLAGS settings, give a useful warning message
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if test "$cross_compiling" = yes; then
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*** ../vim-7.4.047/src/auto/configure 2013-08-04 20:01:06.000000000 +0200
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--- src/auto/configure 2013-10-02 17:56:52.000000000 +0200
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***************
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*** 3989,3994 ****
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--- 3989,4012 ----
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fi
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fi
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+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for recent clang version" >&5
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+ $as_echo_n "checking for recent clang version... " >&6; }
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+ CLANG_VERSION_STRING=`"$CC" --version 2>/dev/null | sed -n -e 's/^.*clang.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*$/\1/p'`
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+ if test x"$CLANG_VERSION_STRING" != x"" ; then
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+ CLANG_MAJOR=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/\([0-9][0-9]*\)\.[0-9][0-9]*\.[0-9][0-9]*/\1/p'`
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+ CLANG_MINOR=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/[0-9][0-9]*\.\([0-9][0-9]*\)\.[0-9][0-9]*/\1/p'`
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+ CLANG_REVISION=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/[0-9][0-9]*\.[0-9][0-9]*\.\([0-9][0-9]*\)/\1/p'`
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+ CLANG_VERSION=`expr $CLANG_MAJOR '*' 1000000 '+' $CLANG_MINOR '*' 1000 '+' $CLANG_REVISION`
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+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CLANG_VERSION" >&5
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+ $as_echo "$CLANG_VERSION" >&6; }
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+ if test "$CLANG_VERSION" -ge 500002075 ; then
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+ CFLAGS=`echo "$CFLAGS" | sed -n -e 's/-fno-strength-reduce/ /p'`
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+ fi
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+ else
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+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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+ $as_echo "no" >&6; }
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+ fi
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+
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if test "$cross_compiling" = yes; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: cannot compile a simple program; if not cross compiling check CC and CFLAGS" >&5
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$as_echo "cannot compile a simple program; if not cross compiling check CC and CFLAGS" >&6; }
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*** ../vim-7.4.047/src/version.c 2013-10-02 16:46:23.000000000 +0200
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--- src/version.c 2013-10-02 17:19:31.000000000 +0200
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***************
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*** 740,741 ****
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--- 740,743 ----
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{ /* Add new patch number below this line */
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+ /**/
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+ 48,
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/**/
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--
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I have to exercise early in the morning before my brain
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figures out what I'm doing.
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/// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
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/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
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\\\ an exciting new programming language -- http://www.Zimbu.org ///
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\\\ help me help AIDS victims -- http://ICCF-Holland.org ///
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