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autoconf for -O2 (if CFLAGS is _empty_), -Wall, -fwrapv, -fno-strict-aliasing 

XXX untested
This commit is contained in:
tg 2007-01-17 17:03:59 +00:00
parent d4b4ca5e92
commit da03ad5be2
1 changed files with 6 additions and 3 deletions
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9
Build.sh
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@ -1,5 +1,5 @@
#!/bin/sh
# $MirOS: src/bin/mksh/Build.sh,v 1.117 2007/01/17 16:57:41 tg Exp $
# $MirOS: src/bin/mksh/Build.sh,v 1.118 2007/01/17 17:03:59 tg Exp $
#-
# Environment: CC, CFLAGS, CPP, CPPFLAGS, LDFLAGS, LIBS, NOWARN, NROFF
# With -x (cross compile): TARGET_OS (default: uname -s)
@ -116,8 +116,6 @@ if test -d mksh; then
exit 1
fi
# XXX autoconf for these
: ${CFLAGS='-O2 -fno-strict-aliasing -fwrapv -Wall'}
# XXX autoconf for gcc:-cc and $CPP
: ${CC=gcc} ${NROFF=nroff}
curdir=`pwd` srcdir=`dirname "$0"` check_categories=pdksh
@ -192,6 +190,11 @@ test 1 = $HAVE_CAN_COMPILER_WORKS || exit 1
ac_flags 0 wnoerror "$save_NOWARN"
test 1 = $HAVE_CAN_WNOERROR || save_NOWARN=
ac_flags 0 werror "-Werror"
i=`echo "$CFLAGS" | tr -c -d qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM0123456789-`
test x"$i" = x"" && ac_flags 1 otwo "-O2"
ac_flags 1 fnostrictaliasing "-fno-strict-aliasing"
ac_flags 1 fwrapv "-fwrapv"
ac_flags 1 wall "-Wall"
# The following tests are run with -Werror if possible
test 1 = $HAVE_CAN_WERROR && NOWARN=-Werror