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-rw-r--r--configure.in9
1 files changed, 6 insertions, 3 deletions
diff --git a/configure.in b/configure.in
index 3e436c4b92..3a9a14aa42 100644
--- a/configure.in
+++ b/configure.in
@@ -396,9 +396,12 @@ 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)
- if test "$CC" = "clang" && $CC --version | grep 'clang version @<:@12 @:>@\.' ; then
- AC_MSG_ERROR([clang version 3.0 or later is required])
- fi
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+ @%:@if defined __APPLE_CC__ && defined __clang_major__ && __clang_major__ < 3
+ @%:@error premature clang
+ @%:@endif])],
+ [],
+ [AC_MSG_ERROR([clang version 3.0 or later is required])])
])
if test x"${build}" != x"${host}"; then
AC_CHECK_TOOL(CC, gcc)