rewrite lots of “elif test” into “case” statements
(except those where the condition isn’t related)
This commit is contained in:
tg
238
Build.sh
238
Build.sh
@@ -1,5 +1,5 @@
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#!/bin/sh
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srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.642 2013/07/25 15:43:59 tg Exp $'
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srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.643 2013/07/25 15:54:33 tg Exp $'
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#-
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# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
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# 2011, 2012, 2013
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@@ -1087,19 +1087,23 @@ if ac_ifcpp 'if 0' compiler_fails '' \
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'if the compiler does not fail correctly'; then
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save_CFLAGS=$CFLAGS
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: ${HAVE_CAN_DELEXE=x}
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if test $ct = dmc; then
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CFLAGS="$CFLAGS ${ccpl}/DELEXECUTABLE"
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ac_testn can_delexe compiler_fails 0 'for the /DELEXECUTABLE linker option' <<-EOF
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int main(void) { return (0); }
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EOF
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elif test $ct = dec; then
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case $ct in
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dec)
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CFLAGS="$CFLAGS ${ccpl}-non_shared"
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ac_testn can_delexe compiler_fails 0 'for the -non_shared linker option' <<-EOF
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int main(void) { return (0); }
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EOF
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else
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;;
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dmc)
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CFLAGS="$CFLAGS ${ccpl}/DELEXECUTABLE"
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ac_testn can_delexe compiler_fails 0 'for the /DELEXECUTABLE linker option' <<-EOF
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int main(void) { return (0); }
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EOF
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;;
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*)
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exit 1
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fi
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;;
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esac
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test 1 = $HAVE_CAN_DELEXE || CFLAGS=$save_CFLAGS
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ac_testn compiler_still_fails '' 'if the compiler still does not fail correctly' <<-EOF
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EOF
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@@ -1112,52 +1116,65 @@ if ac_ifcpp 'ifdef __TINYC__' couldbe_tcc '!' compiler_known 0 \
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HAVE_COMPILER_KNOWN=1
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fi
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if test $ct = sunpro; then
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case $ct in
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bcc)
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save_NOWARN="${ccpc}-w"
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DOWARN="${ccpc}-w!"
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;;
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dec)
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# -msg_* flags not used yet, or is -w2 correct?
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;;
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dmc)
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save_NOWARN="${ccpc}-w"
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DOWARN="${ccpc}-wx"
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;;
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hpcc)
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save_NOWARN=
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DOWARN=+We
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;;
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kencc)
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save_NOWARN=
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DOWARN=
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;;
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mipspro)
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save_NOWARN=
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DOWARN="-diag_error 1-10000"
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;;
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msc)
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save_NOWARN="${ccpc}/w"
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DOWARN="${ccpc}/WX"
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;;
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sunpro)
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test x"$save_NOWARN" = x"" && save_NOWARN='-errwarn=%none'
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ac_flags 0 errwarnnone "$save_NOWARN"
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test 1 = $HAVE_CAN_ERRWARNNONE || save_NOWARN=
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ac_flags 0 errwarnall "-errwarn=%all"
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test 1 = $HAVE_CAN_ERRWARNALL && DOWARN="-errwarn=%all"
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elif test $ct = hpcc; then
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save_NOWARN=
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DOWARN=+We
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elif test $ct = mipspro; then
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save_NOWARN=
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DOWARN="-diag_error 1-10000"
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elif test $ct = msc; then
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save_NOWARN="${ccpc}/w"
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DOWARN="${ccpc}/WX"
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elif test $ct = dmc; then
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save_NOWARN="${ccpc}-w"
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DOWARN="${ccpc}-wx"
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elif test $ct = bcc; then
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save_NOWARN="${ccpc}-w"
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DOWARN="${ccpc}-w!"
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elif test $ct = dec; then
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: -msg_* flags not used yet, or is -w2 correct?
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elif test $ct = kencc; then
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save_NOWARN=
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DOWARN=
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elif test $ct = xlc; then
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save_NOWARN=-qflag=i:e
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DOWARN=-qflag=i:i
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elif test $ct = tendra; then
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;;
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tendra)
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save_NOWARN=-w
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elif test $ct = ucode; then
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;;
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ucode)
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save_NOWARN=
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DOWARN=-w2
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elif test $ct = watcom; then
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;;
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watcom)
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save_NOWARN=
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DOWARN=-Wc,-we
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else
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;;
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xlc)
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save_NOWARN=-qflag=i:e
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DOWARN=-qflag=i:i
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;;
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*)
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test x"$save_NOWARN" = x"" && save_NOWARN=-Wno-error
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ac_flags 0 wnoerror "$save_NOWARN"
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test 1 = $HAVE_CAN_WNOERROR || save_NOWARN=
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ac_flags 0 werror -Werror
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test 1 = $HAVE_CAN_WERROR && DOWARN=-Werror
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fi
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test $ct = icc && DOWARN="$DOWARN -wd1419"
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;;
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esac
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NOWARN=$save_NOWARN
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#
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@@ -1165,7 +1182,16 @@ NOWARN=$save_NOWARN
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#
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i=`echo :"$orig_CFLAGS" | sed 's/^://' | tr -c -d $alll$allu$alln`
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# optimisation: only if orig_CFLAGS is empty
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test x"$i" = x"" && if test $ct = sunpro; then
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test x"$i" = x"" && case $ct in
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hpcc)
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phase=u
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ac_flags 1 otwo +O2
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phase=x
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;;
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kencc|tcc|tendra)
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# no special optimisation
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;;
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sunpro)
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cat >x <<-'EOF'
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int main(void) { return (0); }
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#define __IDSTRING_CONCAT(l,p) __LINTED__ ## l ## _ ## p
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@@ -1175,22 +1201,34 @@ test x"$i" = x"" && if test $ct = sunpro; then
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yes pad | head -n 256 >>x
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ac_flags - 1 otwo -xO2 <x
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rmf x
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elif test $ct = hpcc; then
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phase=u
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ac_flags 1 otwo +O2
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phase=x
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elif test $ct = xlc; then
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;;
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xlc)
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ac_flags 1 othree "-O3 -qstrict"
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test 1 = $HAVE_CAN_OTHREE || ac_flags 1 otwo -O2
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elif test $ct = kencc || test $ct = tcc || test $ct = tendra; then
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: no special optimisation
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else
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;;
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*)
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ac_flags 1 otwo -O2
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test 1 = $HAVE_CAN_OTWO || ac_flags 1 optimise -O
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fi
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;;
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esac
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# other flags: just add them if they are supported
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i=0
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if test $ct = gcc; then
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case $ct in
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bcc)
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ac_flags 1 strpool "${ccpc}-d" 'if string pooling can be enabled'
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;;
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clang)
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i=1
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;;
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dec)
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ac_flags 0 verb -verbose
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ac_flags 1 rodata -readonly_strings
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;;
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dmc)
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ac_flags 1 decl "${ccpc}-r" 'for strict prototype checks'
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ac_flags 1 schk "${ccpc}-s" 'for stack overflow checking'
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;;
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gcc)
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# The following tests run with -Werror (gcc only) if possible
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NOWARN=$DOWARN; phase=u
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ac_flags 1 wnodeprecateddecls -Wno-deprecated-declarations
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@@ -1202,15 +1240,19 @@ if test $ct = gcc; then
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*\ -fplugin=*dragonegg*) ;;
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*) ac_flags 1 fplugin_dragonegg -fplugin=dragonegg ;;
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esac
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if test $cm = lto; then
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fv=0
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checks='1 2 3 4 5 6 7 8'
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elif test $cm = combine; then
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case $cm in
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combine)
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fv=0
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checks='7 8'
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else
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;;
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lto)
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fv=0
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checks='1 2 3 4 5 6 7 8'
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;;
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*)
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fv=1
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fi
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;;
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esac
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test $fv = 1 || for what in $checks; do
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test $fv = 1 && break
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case $what in
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@@ -1239,32 +1281,23 @@ if test $ct = gcc; then
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"if gcc supports $t_cflags $t_ldflags" "$t_ldflags"
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done
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i=1
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elif test $ct = icc; then
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ac_flags 1 fnobuiltinsetmode -fno-builtin-setmode
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ac_flags 1 fnostrictaliasing -fno-strict-aliasing
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ac_flags 1 fstacksecuritycheck -fstack-security-check
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i=1
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elif test $ct = sunpro; then
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phase=u
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ac_flags 1 v -v
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ac_flags 1 ipo -xipo 'for cross-module optimisation'
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phase=x
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elif test $ct = hpcc; then
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;;
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hpcc)
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phase=u
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# probably not needed
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#ac_flags 1 agcc -Agcc 'for support of GCC extensions'
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phase=x
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elif test $ct = dec; then
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ac_flags 0 verb -verbose
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ac_flags 1 rodata -readonly_strings
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elif test $ct = dmc; then
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ac_flags 1 decl "${ccpc}-r" 'for strict prototype checks'
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ac_flags 1 schk "${ccpc}-s" 'for stack overflow checking'
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elif test $ct = bcc; then
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ac_flags 1 strpool "${ccpc}-d" 'if string pooling can be enabled'
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elif test $ct = mipspro; then
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;;
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icc)
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ac_flags 1 fnobuiltinsetmode -fno-builtin-setmode
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ac_flags 1 fnostrictaliasing -fno-strict-aliasing
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ac_flags 1 fstacksecuritycheck -fstack-security-check
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i=1
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;;
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mipspro)
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ac_flags 1 fullwarn -fullwarn 'for remark output support'
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elif test $ct = msc; then
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;;
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msc)
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ac_flags 1 strpool "${ccpc}/GF" 'if string pooling can be enabled'
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echo 'int main(void) { char test[64] = ""; return (*test); }' >x
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ac_flags - 1 stackon "${ccpc}/GZ" 'if stack checks can be enabled' <x
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@@ -1273,24 +1306,33 @@ elif test $ct = msc; then
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rmf x
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ac_flags 1 wall "${ccpc}/Wall" 'to enable all warnings'
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ac_flags 1 wp64 "${ccpc}/Wp64" 'to enable 64-bit warnings'
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elif test $ct = xlc; then
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;;
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nwcc)
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i=1
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#broken# ac_flags 1 ssp -stackprotect
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;;
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sunpro)
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phase=u
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ac_flags 1 v -v
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ac_flags 1 ipo -xipo 'for cross-module optimisation'
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phase=x
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;;
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tcc)
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: #broken# ac_flags 1 boundschk -b
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;;
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tendra)
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ac_flags 0 ysystem -Ysystem
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test 1 = $HAVE_CAN_YSYSTEM && CPPFLAGS="-Ysystem $CPPFLAGS"
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ac_flags 1 extansi -Xa
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;;
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xlc)
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ac_flags 1 rodata "-qro -qroconst -qroptr"
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ac_flags 1 rtcheck -qcheck=all
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#ac_flags 1 rtchkc -qextchk # reported broken
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ac_flags 1 wformat "-qformat=all -qformat=nozln"
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#ac_flags 1 wp64 -qwarn64 # too verbose for now
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elif test $ct = tendra; then
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ac_flags 0 ysystem -Ysystem
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test 1 = $HAVE_CAN_YSYSTEM && CPPFLAGS="-Ysystem $CPPFLAGS"
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ac_flags 1 extansi -Xa
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elif test $ct = tcc; then
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: #broken# ac_flags 1 boundschk -b
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elif test $ct = clang; then
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i=1
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elif test $ct = nwcc; then
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i=1
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: #broken# ac_flags 1 ssp -stackprotect
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fi
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;;
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esac
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# flags common to a subset of compilers (run with -Werror on gcc)
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if test 1 = $i; then
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ac_flags 1 wall -Wall
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@@ -1556,7 +1598,7 @@ else
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#define EXTERN
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#define MKSH_INCLUDES_ONLY
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#include "sh.h"
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__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.642 2013/07/25 15:43:59 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.643 2013/07/25 15:54:33 tg Exp $");
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int main(void) { printf("Hello, World!\n"); return (0); }
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EOF
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case $cm in
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@@ -2170,13 +2212,17 @@ cat >test.sh <<-EOF
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exit \$rv
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EOF
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chmod 755 test.sh
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if test $cm = llvm; then
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emitbc="-emit-llvm -c"
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elif test $cm = dragonegg; then
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case $cm in
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dragonegg)
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emitbc="-S -flto"
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else
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;;
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llvm)
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emitbc="-emit-llvm -c"
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;;
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*)
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emitbc=-c
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fi
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;;
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esac
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echo ": # work around NeXTstep bug" >Rebuild.sh
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echo set -x >>Rebuild.sh
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for file in $SRCS; do
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