diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/configure.ac b/configure.ac index a5e3dc76f6..4e4a52f066 100644 --- a/configure.ac +++ b/configure.ac @@ -271,13 +271,14 @@ AS_CASE(["$host_os:$build_os"], # clang version 1.0 (http://llvm.org/svn/llvm-project/cfe/tags/Apple/clang-23 exported) # Apple clang version 2.0 (tags/Apple/clang-137) (based on LLVM 2.9svn) # Apple clang version 2.1 (tags/Apple/clang-163.7.1) (based on LLVM 3.0svn) - AS_IF([! $CC -E -xc - <<SRC >/dev/null], [ - @%:@if defined __APPLE_CC__ && defined __clang_major__ && __clang_major__ < 3 - @%:@error premature clang - @%:@endif -SRC - AC_MSG_ERROR([clang version 3.0 or later is required]) - ]) + AC_PREPROC_IFELSE( + [AC_LANG_PROGRAM([ + @%:@if defined __APPLE_CC__ && defined __clang_major__ && __clang_major__ < 3 + @%:@error premature clang + @%:@endif + ])], + [], + [AC_MSG_ERROR([clang version 3.0 or later is required])]) ]) AS_CASE(["$target_os"], |