diff options
Diffstat (limited to 'src/third_party/wiredtiger/build_posix/configure.ac.in')
| -rw-r--r-- | src/third_party/wiredtiger/build_posix/configure.ac.in | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/src/third_party/wiredtiger/build_posix/configure.ac.in b/src/third_party/wiredtiger/build_posix/configure.ac.in index 3c427b45e14..7bcbae594cc 100644 --- a/src/third_party/wiredtiger/build_posix/configure.ac.in +++ b/src/third_party/wiredtiger/build_posix/configure.ac.in @@ -29,18 +29,20 @@ define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl # reason to believe "c++" can build compatible objects. # # Check whether the C++ compiler works by linking a trivial program. -if test "$CC" = "cc"; then - AC_CACHE_CHECK([whether the C++ compiler works], - [wt_cv_prog_cxx_works], - [AC_LANG_PUSH([C++]) - AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], - [wt_cv_prog_cxx_works=yes], - [wt_cv_prog_cxx_works=no]) - AC_LANG_POP([C++])]) -else - AC_MSG_WARN([C++ compiler ignored unless compiler is named "cc"]) - wt_cv_prog_cxx_works=no -fi +AM_CONDITIONAL([IS_CXX_OK], [test "$CC" = "cc"]) +AM_COND_IF([IS_CXX_OK], [], AM_CONDITIONAL([IS_CXX_OK], [test $(expr `"$CC" --version | head -n 1 | grep -o -E "[[[[:digit:]]]].[[[[:digit:]]]].[[[[:digit:]]]]" | uniq`) = $(expr `"$CXX" --version | head -n 1 | grep -o -E "[[[[:digit:]]]].[[[[:digit:]]]].[[[[:digit:]]]]" | uniq`)])) + +AM_COND_IF([IS_CXX_OK], + [AC_CACHE_CHECK([whether the C++ compiler works], + [wt_cv_prog_cxx_works], + [AC_LANG_PUSH([C++]) + AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], + [wt_cv_prog_cxx_works=yes], + [wt_cv_prog_cxx_works=no]) + AC_LANG_POP([C++])])], + [AC_MSG_WARN([C++ compiler ignored unless compiler is named "cc" or gcc and g++ versions match]) + wt_cv_prog_cxx_works=no]) + AM_CONDITIONAL([HAVE_CXX], [test "$wt_cv_prog_cxx_works" = "yes"]) LT_PREREQ(2.2.6) |