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improve integer type detection, as some OSes may lack only some types

This commit is contained in:
tg 2007-10-10 11:32:49 +00:00
parent 52b9911ff6
commit 6903e79b30
1 changed files with 36 additions and 24 deletions
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60
Build.sh
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@ -1,5 +1,5 @@
#!/bin/sh
# $MirOS: src/bin/mksh/Build.sh,v 1.268 2007/10/09 14:29:42 tg Exp $
# $MirOS: src/bin/mksh/Build.sh,v 1.269 2007/10/10 11:32:49 tg Exp $
#-
# Environment used: CC CFLAGS CPPFLAGS LDFLAGS LIBS NOWARN NROFF TARGET_OS
# CPPFLAGS recognised: MKSH_SMALL MKSH_ASSUME_UTF8 MKSH_NOPWNAM MKSH_NOVI
@ -648,36 +648,48 @@ ac_header libgen.h
ac_header libutil.h
ac_header paths.h
ac_header stdbool.h
ac_header '!' stdint.h stdarg.h
ac_header grp.h sys/types.h
ac_header ulimit.h
ac_header values.h
ac_testn can_inttypes '!' stdint_h 1 "if we have standard integer types" <<-'EOF'
ac_header '!' stdint.h stdarg.h
ac_testn can_inttyp32 '!' stdint_h 1 "if we have standard 32-bit integer types" <<-'EOF'
#include <sys/types.h>
int main(int ac, char **av) { uint32_t x = (uint32_t)**av;
return (x == (uint64_t)(int32_t)ac);
int main(int ac, char **av) { return ((uint32_t)*av + (int32_t)ac); }
EOF
ac_testn can_inttyb32 '!' can_inttyp32 1 "if we have UCB 32-bit integer types" <<-'EOF'
#include <sys/types.h>
int main(int ac, char **av) { return ((u_int32_t)*av + (int32_t)ac); }
EOF
ac_testn can_inttyp64 '!' stdint_h 1 "if we have standard 64-bit integer types" <<-'EOF'
#include <sys/types.h>
int main(int ac) { return ((int)((uint64_t)ac)); }
EOF
ac_testn can_inttyb64 '!' can_inttyp64 1 "if we have UCB 64-bit integer types" <<-'EOF'
#include <sys/types.h>
int main(int ac) { return ((int)((u_int64_t)ac)); }
EOF
ac_testn can_uinttypes '!' stdint_h 1 "if we have u_char, u_int, u_long" <<-'EOF'
#include <sys/types.h>
int main(int ac, char **av) { u_int x = (u_int)**av;
return (x == (u_int)(u_long)(u_char)ac);
}
EOF
if test 0 = $HAVE_CAN_INTTYPES; then
ac_testn can_uinttypes '' "if we have u_char, u_int, u_long" <<-'EOF'
#include <sys/types.h>
int main(int ac, char **av) { u_int x = (u_int)**av;
return (x == (u_int)(u_long)(u_char)ac);
}
EOF
cat >stdint.h <<-'EOF'
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef unsigned long long uint64_t;
EOF
test 1 = $HAVE_CAN_UINTTYPES || cat >>stdint.h <<-'EOF'
typedef unsigned char u_char;
typedef unsigned int u_int;
typedef unsigned long u_long;
EOF
HAVE_STDINT_H=1
fi
case $HAVE_CAN_INTTYP32$HAVE_CAN_INTTYB32 in
01) echo 'typedef u_int32_t uint32_t;' >>stdint.h ;;
00) echo 'typedef signed int int32_t;' >>stdint.h
echo 'typedef unsigned int uint32_t;' >>stdint.h ;;
esac
case $HAVE_CAN_INTTYP64$HAVE_CAN_INTTYB64 in
01) echo 'typedef u_int64_t uint64_t;' >>stdint.h ;;
00) echo 'typedef unsigned long long uint64_t;' >>stdint.h ;;
esac
test 1 = $HAVE_CAN_UINTTYPES || cat >>stdint.h <<-'EOF'
typedef unsigned char u_char;
typedef unsigned int u_int;
typedef unsigned long u_long;
EOF
test -f stdint.h && HAVE_STDINT_H=1
ac_cppflags STDINT_H
#