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alpha gcc doesn't like -malign-*

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This commit is contained in:
Bill Currie 2002-04-26 18:03:16 +00:00
parent 9399b35b02
commit 7afea4094e
1 changed files with 18 additions and 7 deletions
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25
configure.ac
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@ -1210,7 +1210,7 @@ if test "x$optimize" = xyes; then
IFS=" "
AC_MSG_RESULT($CCVER)
heavy="-O3 -ffast-math -funroll-loops -fomit-frame-pointer -fexpensive-optimizations"
light="-O2 -malign-loops=2 -malign-jumps=2 -malign-functions=2"
light="-O2"
AC_ARG_ENABLE(strict-aliasing,
[ --enable-strict-aliasing enable the -fstrict-aliasing ooption of gcc])
if test "x$enable_strict_aliasing" = "xyes"; then
@ -1231,17 +1231,11 @@ if test "x$optimize" = xyes; then
fi
fi
fi
if test $CC_MAJ = 2 -a $CC_MIN = 96; then
CFLAGS="$CFLAGS $light"
else
CFLAGS="$CFLAGS $heavy"
fi
AC_MSG_CHECKING(for special compiler settings)
AC_ARG_WITH(arch,
[ --with-arch=ARCH control compiler architecture directly],
arch="$withval", arch=auto
)
echo -n $arch
case "$arch" in
auto)
case "${host_cpu}" in
@ -1274,8 +1268,25 @@ if test "x$optimize" = xyes; then
[],
AC_MSG_RESULT(yes),
CFLAGS="$save_CFLAGS"
AC_MSG_RESULT(no)
)
fi
if test $CC_MAJ = 2 -a $CC_MIN = 96; then
AC_MSG_CHECKING(if align options work)
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -malign-loops=2 -malign-jumps=2 -malign-functions=2"
AC_TRY_COMPILE(
[],
[],
light="$light -malign-loops=2 -malign-jumps=2 -malign-functions=2"
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
CFLAGS="$save_CFLAGS"
CFLAGS="$CFLAGS $light"
else
CFLAGS="$CFLAGS $heavy"
fi
else
CFLAGS=-O2
fi