diff options
| author | Sergei Trofimovich <slyfox@gentoo.org> | 2020-11-16 08:42:15 +0000 |
|---|---|---|
| committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2020-11-17 09:41:59 +0900 |
| commit | fcc88da5eb162043adcba552646677d2ab5adf55 (patch) | |
| tree | 77af9aff793d4c05c6393cd8e5e00ff4226db152 /configure.ac | |
| parent | ef19fb111a8c8bf1a71d46e6fcf34b227e086845 (diff) | |
| download | ruby-fcc88da5eb162043adcba552646677d2ab5adf55.tar.gz | |
configure.ac: fix for upcoming autoconf-2.70
The failure initially noticed on `autoconf-2.69d` (soon to become 2.70):
```
$ ./configure
./configure: line 8720: syntax error near unexpected token `fi'
./configure: line 8720: `fi'
```
Before the change generated `./configure ` snippet looked like:
```
if ! $CC -E -xc - <<SRC >/dev/null
then :
#if defined __APPLE_CC__ && defined __clang_major__ && __clang_major__ < 3
#error premature clang
#endif
SRC
as_fn_error $? "clang version 3.0 or later is required" "$LINENO" 5
fi
```
Note the newline that breaks here-document syntax.
After the change the snippet does not use here-document.
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
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"], |