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| author | Nick Lewycky <nicholas@mxc.ca> | 2009-09-29 05:40:45 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2009-09-29 05:40:45 +0000 |
| commit | 558aef86c2d923e2c4bb62a7cf328dd5869525de (patch) | |
| tree | 6c3105edc31fa3f0b8c9220b2ffbb21c1f9d4a98 /autoconf/configure.ac | |
| parent | 0475c9170e9621292a48c688c3976031be5650bb (diff) | |
| download | llvm-558aef86c2d923e2c4bb62a7cf328dd5869525de.tar.gz llvm-558aef86c2d923e2c4bb62a7cf328dd5869525de.tar.bz2 llvm-558aef86c2d923e2c4bb62a7cf328dd5869525de.tar.xz | |
On Linux, uname -m reports the kernel type. Some Linux systems are 32-bit but
with a 64-bit kernel, which confuses LLVM. Make LLVM double-check this by
checking which defines the system gcc actually sets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83047 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'autoconf/configure.ac')
| -rw-r--r-- | autoconf/configure.ac | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/autoconf/configure.ac b/autoconf/configure.ac index e305869342..bdd665ccd6 100644 --- a/autoconf/configure.ac +++ b/autoconf/configure.ac @@ -284,6 +284,14 @@ if test "$llvm_cv_target_arch" = "Unknown" ; then AC_MSG_WARN([Configuring LLVM for an unknown target archicture]) fi +dnl Handle 32-bit linux systems running a 64-bit kernel. +if test "$llvm_cv_os_type" = "Linux" -a "$llvm_cv_target_arch" = "x86_64" ; then + AC_IS_LINUX_MIXED + if test "$llvm_cv_linux_mixed" = "yes"; then + llvm_cv_target_arch="x86" + fi +fi + # Determine the LLVM native architecture for the target case "$llvm_cv_target_arch" in x86) LLVM_NATIVE_ARCH="X86" ;; |