Mercurial > vim
changeset 5394:31c9acfeda8f v7.4.048
updated for version 7.4.048
Problem: Recent clang version complains about -fno-strength-reduce.
Solution: Add a configure check for the clang version. (Kazunobu Kuriyama)
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Wed, 02 Oct 2013 18:23:07 +0200 |
| parents | 3e7ee32aa938 |
| children | c05dfcf3da83 |
| files | src/auto/configure src/configure.in src/version.c |
| diffstat | 3 files changed, 43 insertions(+), 0 deletions(-) [+] |
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--- a/src/auto/configure +++ b/src/auto/configure @@ -3989,6 +3989,24 @@ if test "$GCC" = yes; then fi fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for recent clang version" >&5 +$as_echo_n "checking for recent clang version... " >&6; } +CLANG_VERSION_STRING=`"$CC" --version 2>/dev/null | sed -n -e 's/^.*clang.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*$/\1/p'` +if test x"$CLANG_VERSION_STRING" != x"" ; then + CLANG_MAJOR=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/\([0-9][0-9]*\)\.[0-9][0-9]*\.[0-9][0-9]*/\1/p'` + CLANG_MINOR=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/[0-9][0-9]*\.\([0-9][0-9]*\)\.[0-9][0-9]*/\1/p'` + CLANG_REVISION=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/[0-9][0-9]*\.[0-9][0-9]*\.\([0-9][0-9]*\)/\1/p'` + CLANG_VERSION=`expr $CLANG_MAJOR '*' 1000000 '+' $CLANG_MINOR '*' 1000 '+' $CLANG_REVISION` + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CLANG_VERSION" >&5 +$as_echo "$CLANG_VERSION" >&6; } + if test "$CLANG_VERSION" -ge 500002075 ; then + CFLAGS=`echo "$CFLAGS" | sed -n -e 's/-fno-strength-reduce/ /p'` + fi +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + if test "$cross_compiling" = yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: cannot compile a simple program; if not cross compiling check CC and CFLAGS" >&5 $as_echo "cannot compile a simple program; if not cross compiling check CC and CFLAGS" >&6; }
--- a/src/configure.in +++ b/src/configure.in @@ -62,6 +62,29 @@ if test "$GCC" = yes; then fi fi +dnl clang-500.2.75 or around has abandoned -f[no-]strength-reduce and issues a +dnl warning when that flag is passed to. Accordingly, adjust CFLAGS based on +dnl the version number of the clang in use. +dnl Note that this does not work to get the version of clang 3.1 or 3.2. +AC_MSG_CHECKING(for recent clang version) +CLANG_VERSION_STRING=`"$CC" --version 2>/dev/null | sed -n -e 's/^.*clang.*\([[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\).*$/\1/p'` +if test x"$CLANG_VERSION_STRING" != x"" ; then + CLANG_MAJOR=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/\([[0-9]][[0-9]]*\)\.[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*/\1/p'` + CLANG_MINOR=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/[[0-9]][[0-9]]*\.\([[0-9]][[0-9]]*\)\.[[0-9]][[0-9]]*/\1/p'` + CLANG_REVISION=`echo "$CLANG_VERSION_STRING" | sed -n -e 's/[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.\([[0-9]][[0-9]]*\)/\1/p'` + CLANG_VERSION=`expr $CLANG_MAJOR '*' 1000000 '+' $CLANG_MINOR '*' 1000 '+' $CLANG_REVISION` + AC_MSG_RESULT($CLANG_VERSION) + dnl If you find the same issue with versions earlier than 500.2.75, + dnl change the constant 500002075 below appropriately. To get the + dnl integer corresponding to a version number, refer to the + dnl definition of CLANG_VERSION above. + if test "$CLANG_VERSION" -ge 500002075 ; then + CFLAGS=`echo "$CFLAGS" | sed -n -e 's/-fno-strength-reduce/ /p'` + fi +else + AC_MSG_RESULT(no) +fi + dnl If configure thinks we are cross compiling, there might be something dnl wrong with the CC or CFLAGS settings, give a useful warning message if test "$cross_compiling" = yes; then