linux-kernel - Fwd: syntax error in prepare target of main Makefile

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Message-ID: <db732251-b6fe-c2c5-a0db-bac77dc84314@gmail.com>
Date:   Sun, 7 May 2023 20:29:22 +0700
From:   Bagas Sanjaya <bagasdotme@...il.com>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kernel Build System <linux-kbuild@...r.kernel.org>,
        Masahiro Yamada <masahiroy@...nel.org>
Subject: Fwd: syntax error in prepare target of main Makefile

Hi,

I notice a year old bug in bugzilla [1]. As many developers don't
take a look on it, I decided to forward the bug by mail. And
to reach the reporter, you must log in to bugzilla.

Quoting from the bug report:

>  Christian 2022-04-08 10:44:17 UTC
> 
> Symptom:
> 
> make[2]: Entering directory '/usr/src/kernels/5.17.1-1.el8.elrepo.x86_64'
> Makefile:729: target 'include/config/auto.conf' does not exist
> test -e include/generated/autoconf.h -a -e include/config/auto.conf || (                \
> echo >&2;                                                       \
> echo >&2 "  ERROR: Kernel configuration is invalid.";           \
> echo >&2 "         include/generated/autoconf.h or include/config/auto.conf are missing.";\
> echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";      \
> echo >&2 ;                                                      \
> /bin/false)
> Makefile:1717: target 'prepare' does not exist
> if [ "gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4)" != ""gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4)"" ]; then \
>         echo >&2 "warning: the compiler differs from the one used to build the kernel"; \
>         echo >&2 "  The kernel was built by: "gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4)""; \
>         echo >&2 "  You are using:           gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4)"; \
> fi
> /bin/sh: -c: line 0: syntax error near unexpected token `('
> /bin/sh: -c: line 0: `if [ "gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4)" != ""gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4)"" ]; then \'
> make[2]: *** [Makefile:1717: prepare] Error 1
> make[2]: Leaving directory '/usr/src/kernels/5.17.1-1.el8.elrepo.x86_64'
> 
> 
> Note the double double-quotes in the GCC Version comparison !
> 
> This happens to me when I try to compile vmware kernel modules with mainline kernel from elrepo on AlamLinux8.
> 
> Since it is coming from the Makefile of the Kernel, I suppose this is the proper upstream tracker to be used. Please advise if not.
> 
> 
> This is the potion of the Makefile that fails (line 1717..) : 
> prepare:
> 	@if [ "$(CC_VERSION_TEXT)" != "$(CONFIG_CC_VERSION_TEXT)" ]; then \
> 		echo >&2 "warning: the compiler differs from the one used to build the kernel"; \
> 		echo >&2 "  The kernel was built by: $(CONFIG_CC_VERSION_TEXT)"; \
> 		echo >&2 "  You are using:           $(CC_VERSION_TEXT)"; \
> 	fi
> 
> 
> 
> I don't know where CONFIG_CC_VERSION_TEXT is defined. Which apparently contains "...", but shouldn't.
> 
> 	

To the reporter: It is helpful to try compiling your third-party modules
against latest mainline kernel.

Thanks.

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=215820

-- 
An old man doll... just what I always wanted! - Clara