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| author |   yalei wang <wylandrea@gmail.com> | 2018-03-13 01:12:00 +0000 |
|---|---|---|
| committer |   Gerrit Code Review <gerrit@fd.io> | 2018-03-13 01:12:00 +0000 |
| commit | 1b031216ba4cd37943900b8759f50fd0e3a8f1cf (patch) | |
| tree | b6816d9228ddb456b6f26889d8831c2e879e47ce /thirdparty/glog/glog-0.3.4/m4/namespaces.m4 | |
| parent | a8261960bcb4d08b254b2cfce746cca166329b6a (diff) | |
| parent | 71e33ec17c12e6ca43f149215ca05fc9d8b1d5a9 (diff) | |
Merge "Add some third-party src code for DMM"
Diffstat (limited to 'thirdparty/glog/glog-0.3.4/m4/namespaces.m4')
| -rw-r--r-- | thirdparty/glog/glog-0.3.4/m4/namespaces.m4 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/thirdparty/glog/glog-0.3.4/m4/namespaces.m4 b/thirdparty/glog/glog-0.3.4/m4/namespaces.m4 new file mode 100644 index 0000000..d78dbe4 --- /dev/null +++ b/thirdparty/glog/glog-0.3.4/m4/namespaces.m4 @@ -0,0 +1,15 @@ +# Checks whether the compiler implements namespaces +AC_DEFUN([AC_CXX_NAMESPACES], + [AC_CACHE_CHECK(whether the compiler implements namespaces, + ac_cv_cxx_namespaces, + [AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_COMPILE([namespace Outer { + namespace Inner { int i = 0; }}], + [using namespace Outer::Inner; return i;], + ac_cv_cxx_namespaces=yes, + ac_cv_cxx_namespaces=no) + AC_LANG_RESTORE]) + if test "$ac_cv_cxx_namespaces" = yes; then + AC_DEFINE(HAVE_NAMESPACES, 1, [define if the compiler implements namespaces]) + fi]) |