- $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy "${UNAME_MACHINE}" && rm $dummy.c $dummy && exit 0
- rm -f $dummy.c $dummy
- elif test "${UNAME_MACHINE}" = "s390"; then
- echo s390-ibm-linux && exit 0
- else
- # Either a pre-BFD a.out linker (linux-gnuoldld)
- # or one that does not give us useful --help.
- # GCC wants to distinguish between linux-gnuoldld and linux-gnuaout.
- # If ld does not provide *any* "supported emulations:"
- # that means it is gnuoldld.
- echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations:"
- test $? != 0 && echo "${UNAME_MACHINE}-pc-linux-gnuoldld" && exit 0
-
- case "${UNAME_MACHINE}" in
- i?86)
- VENDOR=pc;
- ;;
- *)
- VENDOR=unknown;
- ;;
- esac
- # Determine whether the default compiler is a.out or elf
- cat >$dummy.c <<EOF
-#include <features.h>
-#ifdef __cplusplus
-#include <stdio.h> /* for printf() prototype */
- int main (int argc, char *argv[]) {
-#else
- int main (argc, argv) int argc; char *argv[]; {
-#endif
-#ifdef __ELF__
-# ifdef __GLIBC__
-# if __GLIBC__ >= 2
- printf ("%s-${VENDOR}-linux-gnu\n", argv[1]);
-# else
- printf ("%s-${VENDOR}-linux-gnulibc1\n", argv[1]);
-# endif
-# else
- printf ("%s-${VENDOR}-linux-gnulibc1\n", argv[1]);
-# endif
-#else
- printf ("%s-${VENDOR}-linux-gnuaout\n", argv[1]);
-#endif
- return 0;
-}
+ cc_set_vars=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI'`
+ eval "$cc_set_vars"
+ test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; }
+ ;;
+ mips64el:Linux:*:*)
+ GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ ;;
+ openrisc*:Linux:*:*)
+ GUESS=or1k-unknown-linux-$LIBC
+ ;;
+ or32:Linux:*:* | or1k*:Linux:*:*)
+ GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ ;;
+ padre:Linux:*:*)
+ GUESS=sparc-unknown-linux-$LIBC
+ ;;
+ parisc64:Linux:*:* | hppa64:Linux:*:*)
+ GUESS=hppa64-unknown-linux-$LIBC
+ ;;
+ parisc:Linux:*:* | hppa:Linux:*:*)
+ # Look for CPU level
+ case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+ PA7*) GUESS=hppa1.1-unknown-linux-$LIBC ;;
+ PA8*) GUESS=hppa2.0-unknown-linux-$LIBC ;;
+ *) GUESS=hppa-unknown-linux-$LIBC ;;
+ esac
+ ;;
+ ppc64:Linux:*:*)
+ GUESS=powerpc64-unknown-linux-$LIBC
+ ;;
+ ppc:Linux:*:*)
+ GUESS=powerpc-unknown-linux-$LIBC
+ ;;
+ ppc64le:Linux:*:*)
+ GUESS=powerpc64le-unknown-linux-$LIBC
+ ;;
+ ppcle:Linux:*:*)
+ GUESS=powerpcle-unknown-linux-$LIBC
+ ;;
+ riscv32:Linux:*:* | riscv32be:Linux:*:* | riscv64:Linux:*:* | riscv64be:Linux:*:*)
+ GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ ;;
+ s390:Linux:*:* | s390x:Linux:*:*)
+ GUESS=$UNAME_MACHINE-ibm-linux-$LIBC
+ ;;
+ sh64*:Linux:*:*)
+ GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ ;;
+ sh*:Linux:*:*)
+ GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ ;;
+ sparc:Linux:*:* | sparc64:Linux:*:*)
+ GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ ;;
+ tile*:Linux:*:*)
+ GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+ ;;
+ vax:Linux:*:*)
+ GUESS=$UNAME_MACHINE-dec-linux-$LIBC
+ ;;
+ x86_64:Linux:*:*)
+ set_cc_for_build
+ CPU=$UNAME_MACHINE
+ LIBCABI=$LIBC
+ if test "$CC_FOR_BUILD" != no_compiler_found; then
+ ABI=64
+ sed 's/^ //' << EOF > "$dummy.c"
+ #ifdef __i386__
+ ABI=x86
+ #else
+ #ifdef __ILP32__
+ ABI=x32
+ #endif
+ #endif