mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
18 lines
497 B
Plaintext
18 lines
497 B
Plaintext
|
#
|
||
|
|
# Some Linux machines run a 64-bit kernel with a 32-bit userspace. 'uname -m'
|
||
|
|
# shows these as x86_64. Ask the system 'gcc' what it thinks.
|
||
|
|
#
|
||
|
|
AC_DEFUN([AC_IS_LINUX_MIXED],
|
||
|
|
[AC_CACHE_CHECK(for 32-bit userspace on 64-bit system,llvm_cv_linux_mixed,
|
||
|
|
[ AC_LANG_PUSH([C])
|
||
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
|
||
|
|
[[#ifndef __x86_64__
|
||
|
|
error: Not x86-64 even if uname says so!
|
||
|
|
#endif
|
||
|
|
]])],
|
||
|
|
[llvm_cv_linux_mixed=no],
|
||
|
|
[llvm_cv_linux_mixed=yes])
|
||
|
|
AC_LANG_POP([C])
|
||
|
|
])
|
||
|
|
])
|