- echo x86_64-unknown-linux-gnu
- exit 0 ;;
- i?86:Linux:*:*)
- # The BFD linker knows what the default object file format is, so
- # first see if it will tell us. cd to the root directory to prevent
- # problems with other programs or directories called `ld' in the path.
- ld_supported_emulations=`cd /; ld --help 2>&1 \
- | sed -ne '/supported emulations:/!d
- s/[ ][ ]*/ /g
- s/.*supported emulations: *//
- s/ .*//
- p'`
- case "$ld_supported_emulations" in
- i?86linux)
- echo "${UNAME_MACHINE}-pc-linux-gnuaout"
- exit 0
- ;;
- elf_i?86)
- TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
- ;;
- i?86coff)
- echo "${UNAME_MACHINE}-pc-linux-gnucoff"
- exit 0
- ;;
- esac
- # 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.
- test -z "$ld_supported_emulations" && echo "${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;
-}
-EOF
- $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy "${UNAME_MACHINE}" && rm -f $dummy.c $dummy && exit 0
- rm -f $dummy.c $dummy
- test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0
- ;;
-# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. earlier versions
-# are messed up and put the nodename in both sysname and nodename.
- i?86:DYNIX/ptx:4*:*)
+ LIBC=gnu
+ test -r /lib/libc.so && od -An -S13 /lib/libc.so | grep -q __uClibc_main && LIBC=uclibc
+ echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ exit ;;
+ xtensa*:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-gnu
+ exit ;;
+ i*86:DYNIX/ptx:4*:*)
+ # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+ # earlier versions are messed up and put the nodename in both
+ # sysname and nodename.