On Thu, 2018-07-12 at 10:26 +0900, Masahiro Yamada wrote: > $ make -j8 defconfig all > HOSTCC scripts/basic/fixdep > HOSTCC scripts/kconfig/conf.o > YACC scripts/kconfig/zconf.tab.c > LEX scripts/kconfig/zconf.lex.c > HOSTCC scripts/kconfig/zconf.tab.o > HOSTLD scripts/kconfig/conf > *** Default configuration is based on 'x86_64_defconfig' > # > # configuration written to .config > # > scripts/kconfig/conf --syncconfig Kconfig > make[1]: warning: jobserver unavailable: using -j1. Add '+' to > parent > make rule. > SYSTBL arch/x86/include/generated/asm/syscalls_32.h
Someone will need to investigate this further as the information we need has been elided. Is there a way to invoke the Linux kernel makefile with a "verbose" mode that doesn't use these shorthand outputs for commands but instead actually shows the commands that recipes ask make to invoke? That's what we need to see; the actual command that was used to recursively invoke make. This warning means that a sub-make has been invoked but that the makefile invoking it didn't realize it was a sub-make: that was hidden from make by not using the $(MAKE) variable in the recipe. In that case, make recommends that the makefile rule be prefixed with the '+' character to tell make that the rule is a recursive invocation. Unless make realizes that the recipe it runs will invoke a sub-make, it can't properly prepare the environment for that sub-make. I'm somewhat surprised that the build was not seeing this error before, because it definitely was previously emitted: that error message has been around for a long time. As mentioned I'd need to see the actual command line invocation in order to understand why this might have happened. _______________________________________________ Bug-make mailing list Bug-make@gnu.org https://lists.gnu.org/mailman/listinfo/bug-make
