On Thu, Apr 7, 2011 at 3:10 PM, Steve Clark sclark@netwolves.com wrote:

Hello,

I am trying to compile RHEL-6 kernel srpm on Fedora 14 and run into the following problem. From what I read -Werror flag causes warnings to be treated as errors - but I don't see that flag on in the following. Any ideas?

gcc -Wp,-MD,arch/x86/kernel/acpi/realmode/.wakemain.o.d  -nostdinc -isystem /usr/lib/gcc/i686-redhat-linux/4.5.1/include -nostdinc -isystem /usr/lib/gcc/i686-redhat-linux/4.5.1/include -Iinclude -I/home/sclark/rpmbuild/BUILD/kernel-2.6.32/arch/x86/include -include include/linux/autoconf.h -D__KERNEL__ -Iinclude -I/home/sclark/rpmbuild/BUILD/kernel-2.6.32/arch/x86/include -include include/linux/autoconf.h -g -Os -D_SETUP -D_WAKEUP -D__KERNEL__ -I/home/sclark/rpmbuild/BUILD/kernel-2.6.32/arch/x86/kernel/acpi/realmode/../../../boot -Wall -Wstrict-prototypes -march=i386 -mregparm=3 -include /home/sclark/rpmbuild/BUILD/kernel-2.6.32/arch/x86/kernel/acpi/realmode/../../../boot/code16gcc.h -fno-strict-aliasing -fomit-frame-pointer -ffreestanding -fno-toplevel-reorder -fno-stack-protector -mpreferred-stack-boundary=2 -m32   -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(wakemain)" -D"KBUILD_MODNAME=KBUILD_STR(wakemain)" -D"DEBUG_HASH=57" -D"DEBUG_HASH2=38" -c -o arch/x86/kernel/acpi/realmode/.tmp_wakemain.o arch/x86/kernel/acpi/realmode/wakemain.c cc1: warnings being treated as errors arch/x86/kernel/apic/apic.c: In function 'lapic_suspend': arch/x86/kernel/apic/apic.c:2008:3: error: statement with no effect arch/x86/kernel/apic/apic.c: In function 'lapic_resume': arch/x86/kernel/apic/apic.c:2085:3: error: statement with no effect make[5]: *** [arch/x86/kernel/apic/apic.o] Error 1 make[4]: *** [arch/x86/kernel/apic] Error 2

Thanks,

Stephen Clark NetWolves Sr. Software Engineer III Phone: 813-579-3200 Fax: 813-882-0209 Email: steve.clark@netwolves.com http://www.netwolves.com

Have you checked on the Fedora forums, or mailing list?

On Thu, 2011-04-07 at 09:10 -0400, Steve Clark wrote:

Hello,

I am trying to compile RHEL-6 kernel srpm on Fedora 14 and run into the following problem. From what I read -Werror flag causes warnings to be treated as errors - but I don't see that flag on in the following. Any ideas?

Fedora 14 ships with gcc 4.5.1 and RHEL 6 is shipped with gcc 4.4.4

I would try compiling on either a Fedora 12 (gcc 4.4.4) or Fedora 13 (gcc 4.4.5) too see if you get the same issue.

Regards Neil

centos-bounces@centos.org wrote:

Hello,

I am trying to compile RHEL-6 kernel srpm on Fedora 14 and run into the following problem. From what I read -Werror flag causes warnings to be treated as errors - but I don't see that flag on in the following. Any ideas?

My guess: gcc4.4.4 had --disable-werror by default, so we must -werror explicitly to get warning treated as errors; gcc4.5.1 does NOT have --disable-werror by default, so, unless you specify --disable-werror on the compile line, warnings are treated like errors.

I don't have either compiler version here at work, so I can't verify.

ANYHOW, if your 4.5.1 build tree Makefile has CFLAGS with --disable-werrors in it, does the problem go away?

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