This fixes https://debbugs.gnu.org/21336. On macOS 10.10, there seems to be a kerberos tool installed as "kcc" which breaks the check.
Also resync with latest autoconf which searches for clang++ too. * configure.ac: Skip KCC check on case-insensitive filesystems. Add clang++ to the C++ search list. --- configure.ac | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/configure.ac b/configure.ac index 5a00bd29e0a7..6be3ba7526b9 100644 --- a/configure.ac +++ b/configure.ac @@ -444,11 +444,13 @@ AS_IF([test x"$GCC" = x"yes"], [am_CC_is_GNU=yes], [am_CC_is_GNU=no]) # to a C++ compiler as expected (see automake bugs #11893 and #10766). # Similarly, we must avoid looking for 'RCC', as that can point to the # Qt4 "Resource Compiler": <http://doc.qt.digia.com/4.2/rcc.html> +# And we avoid looking for 'KCC' as that can be a kerberos tool under +# macOS systems. if test -f /bIn/rMdIr || test -f /uSr/bIn/rMdIr; then # Case-insensitive file system, don't look for CC. - am_CC= am_RCC= + am_CC= am_RCC= am_KCC= else - am_CC=CC am_RCC=RCC + am_CC=CC am_RCC=RCC am_KCC=KCC fi # The list of C++ compilers here has been copied, pasted and edited @@ -456,7 +458,7 @@ fi # Keep it in sync, or better again, find out a way to avoid this code # duplication. _AM_COMPILER_CAN_FAIL([AC_PROG_CXX(dnl - [aCC $am_CC FCC KCC $am_RCC xlC_r xlC c++ cxx cc++ gpp g++])], + [aCC $am_CC FCC $am_KCC $am_RCC xlC_r xlC c++ cxx cc++ gpp g++ clang++])], [CXX=false; _AM_SKIP_COMP_TESTS([C++])]) AS_IF([test x"$GXX" = x"yes"], [am_CXX_is_GNU=yes], [am_CXX_is_GNU=no]) -- 2.33.0
