http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52509
Bug #: 52509 Summary: target libstdc++-v3 should not be bootstrapped, libstdc++-v3 should also be a host_module (bootstrapped) Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Keywords: build Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassig...@gcc.gnu.org ReportedBy: rgue...@gcc.gnu.org We should not need to bootstrap the target libstdc++ (and it's multilibs), but we only need a host libstdc++ (of the host multilib variant - does a canadian cross even work right now with C++ bootstrap?). The host libstdc++ should be a static library only, and it should not build PCH files (configured with --disable-libstdcxx-pch). Thus, like simply Index: Makefile.def =================================================================== --- Makefile.def (revision 184981) +++ Makefile.def (working copy) @@ -84,6 +84,8 @@ host_modules= { module= libdecnumber; bo host_modules= { module= libgui; }; host_modules= { module= libiberty; bootstrap=true; extra_configure_flags='@extra_host_libiberty_configure_flags@';}; +host_modules= { module= libstdc++-v3; bootstrap=true; + extra_configure_flags='--disable-libstdcxx-pch';} // We abuse missing to avoid installing anything for libiconv. host_modules= { module= libiconv; extra_configure_flags='--disable-shared'; @@ -113,7 +115,6 @@ host_modules= { module= lto-plugin; boot extra_configure_flags=--enable-shared; }; target_modules = { module= libstdc++-v3; - bootstrap=true; lib_path=src/.libs; raw_cxx=true; }; target_modules = { module= libmudflap; lib_path=.libs; }; ?