diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index cc439e08a9a3..365391d205ee 100644 --- a/configure.ac +++ b/configure.ac @@ -2896,6 +2896,13 @@ if test "$GCC" = "yes"; then fi AC_SUBST(COM_GCC_IS_CLANG) +if test "$CCACHE" != "" -a "$COM_GCC_IS_CLANG" = TRUE; then + if test -z "$CCACHE_CPP2"; then + AC_MSG_WARN([Using ccache with Clang without CCACHE_CPP2 set causes spurious warnings.]) + add_warning "Using ccache with Clang without CCACHE_CPP2 set causes spurious warnings." + fi +fi + # =================================================================== # check various GCC options that Clang does not support now but maybe # will somewhen in the future, check them even for GCC, so that the |