https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63509
Bug ID: 63509 Summary: Misleading error message when building gcc without C++ compiler installed Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: other Assignee: unassigned at gcc dot gnu.org Reporter: sajarvis at bu dot edu Created attachment 33685 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33685&action=edit Full output during make. When building gcc with no C++ compiler installed, configuration succeeds, then make fails with error message: configure: error: error verifying int64_t uses long long Steps to cause: 1) Don't install a C++ compiler 2) $ ./configure --prefix=$HOME/dev/gcc/bld --enable-multilib 3) $ make I think the error should be more specific to the issue (no C++ compiler found) and probably caught earlier. System: Fedora 20, Linux 3.16 building gcc trunk, version r216105 More of the log (full log attached): [...] checking for int16_t... yes checking for int32_t... yes checking for int64_t... yes checking for long long int... yes checking for intmax_t... yes checking for intptr_t... yes checking for uint8_t... yes checking for uint16_t... yes checking for uint32_t... yes checking for uint64_t... yes checking for unsigned long long int... yes checking for uintmax_t... yes checking for uintptr_t... yes checking for int64_t underlying type... long long configure: error: error verifying int64_t uses long long make[2]: *** [configure-stage1-gcc] Error 1 make[2]: Leaving directory `/home/sjarvis/dev/gcc/srcdir' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/home/sjarvis/dev/gcc/srcdir' make: *** [all] Error 2