File: linux_mixed_64_32.m4

package info (click to toggle)
llvm-toolchain-3.4 1%3A3.4.2-13
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 253,236 kB
  • ctags: 276,203
  • sloc: cpp: 1,665,580; ansic: 298,647; asm: 206,157; objc: 84,350; python: 73,119; sh: 23,466; perl: 5,679; makefile: 5,542; ml: 5,250; pascal: 2,467; lisp: 1,420; xml: 679; cs: 236; csh: 117
file content (17 lines) | stat: -rw-r--r-- 497 bytes parent folder | download | duplicates (19) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
#
# 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])
])
])