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new shell function for autoconfing compiler flags, reduces redundancy

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tg 2007-01-17 16:39:55 +00:00
parent 69584be3bb
commit bcb0852dcc
1 changed files with 20 additions and 19 deletions
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39
Build.sh
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@ -1,5 +1,5 @@
#!/bin/sh #!/bin/sh
# $MirOS: src/bin/mksh/Build.sh,v 1.113 2007/01/17 01:59:38 tg Exp $ # $MirOS: src/bin/mksh/Build.sh,v 1.114 2007/01/17 16:39:55 tg Exp $
#- #-
# Environment: CC, CFLAGS, CPP, CPPFLAGS, LDFLAGS, LIBS, NOWARN, NROFF # Environment: CC, CFLAGS, CPP, CPPFLAGS, LDFLAGS, LIBS, NOWARN, NROFF
# With -x (cross compile): TARGET_OS (default: uname -s) # With -x (cross compile): TARGET_OS (default: uname -s)
@ -85,6 +85,22 @@ ac_test()
eval CPPFLAGS=\"\$CPPFLAGS -DHAVE_$fu=\$HAVE_$fu\" eval CPPFLAGS=\"\$CPPFLAGS -DHAVE_$fu=\$HAVE_$fu\"
} }
# ac_flags varname flags [text]
ac_flags()
{
vn=$1
f=$2
ft=$3
test x"$ft" = x"" && ft="if $f can be used"
save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS $f"
ac_testn can_$vn '' "$ft" <<-'EOF'
int main(void) { return (0); }
EOF
eval fv=\$HAVE_`upper $vn`
test 1 = $fv || CFLAGS=$save_CFLAGS
}
addsrcs() addsrcs()
{ {
eval i=\$$1 eval i=\$$1
@ -218,12 +234,7 @@ ac_testn mksh_full '' "if we're building without MKSH_SMALL" <<-'EOF'
EOF EOF
if test 0 = $HAVE_MKSH_FULL; then if test 0 = $HAVE_MKSH_FULL; then
save_CFLAGS=$CFLAGS ac_flags fnoinline "-fno-inline"
CFLAGS="$CFLAGS -fno-inline"
ac_testn can_fnoinline '' 'if -fno-inline can be used' <<-'EOF'
int main(void) { return (0); }
EOF
test 1 = $HAVE_CAN_FNOINLINE || CFLAGS=$save_CFLAGS
: ${HAVE_SETLOCALE_CTYPE=0} : ${HAVE_SETLOCALE_CTYPE=0}
check_categories=$check_categories,smksh check_categories=$check_categories,smksh
@ -231,19 +242,9 @@ fi
# I'd use -std=c99 but this wrecks havoc on glibc and cygwin based # I'd use -std=c99 but this wrecks havoc on glibc and cygwin based
# systems (at least) because their system headers are so broken... # systems (at least) because their system headers are so broken...
save_CFLAGS=$CFLAGS ac_flags stdg99 "-std=gnu99" 'if -std=gnu99 (ISO C99) can be used'
CFLAGS="$CFLAGS -std=gnu99"
ac_testn can_stdg99 '' 'if -std=gnu99 (ISO C99) can be used' <<-'EOF'
int main(void) { return (0); }
EOF
test 1 = $HAVE_CAN_STDG99 || CFLAGS=$save_CFLAGS
save_CFLAGS=$CFLAGS ac_flags fwholepgm "-fwhole-program --combine"
CFLAGS="$CFLAGS -fwhole-program --combine"
ac_testn can_fwholepgm '' 'if -fwhole-program --combine can be used' <<-'EOF'
int main(void) { return (0); }
EOF
test 1 = $HAVE_CAN_FWHOLEPGM || CFLAGS=$save_CFLAGS
ac_test sys_param_h '' '<sys/param.h>' <<'EOF' ac_test sys_param_h '' '<sys/param.h>' <<'EOF'
#include <sys/param.h> #include <sys/param.h>