Re: Cross-compiling nfs-utils 1.1.4 for ARM

[Patrick Dignan <pdignan@nvidia.com>]

On 01/25/2011 12:32 PM, Kevin Coffman wrote:
> On Tue, Jan 25, 2011 at 2:56 PM, Patrick Dignan<pdignan@nvidia.com>  wrote:
>> On 01/25/2011 04:58 AM, Steve Dickson wrote:
>>> On 01/24/2011 05:15 PM, Patrick Dignan wrote:
>>>> Hi,
>>>>
>>>> I'm attempting to cross-compile nfs-utils 1.1.4 for ARM on an x86_64
>>>> build machine.  I can cross-compile other software, but nfs-utils fails.  I
>>>> get the following error:
>>>>
>>>> gcc -DHAVE_CONFIG_H -I. -I../../support/include  -D_GNU_SOURCE
>>>> -D_GNU_SOURCE  -O2 -pipe -I/build/tegra2_seaboard/usr/include/
>>>> -I/build/tegra2_seaboard/include/ -ggdb -march=armv7-a -mtune=cortex-a8
>>>> -mfpu=vfpv3-d16 -mfloat-abi=softfp -MT testlk-testlk.o -MD -MP -MF
>>>> .deps/testlk-testlk.Tpo -c -o testlk-testlk.o `test -f 'testlk.c' || echo
>>>> './'`testlk.c
>>>> cc1: error: unrecognized command line option "-mfpu=vfpv3-d16"
>>>> cc1: error: unrecognized command line option "-mfloat-abi=softfp"
>>>> testlk.c:1: error: bad value (armv7-a) for -march= switch
>>>> testlk.c:1: error: bad value (cortex-a8) for -mtune= switch
>>>>
>>>> I'm guessing there's some sort of problem in Makefile.am that's causing
>>>> it to fail, but I am not sure what changes I need to make.  Does anyone know
>>>> the solution to this problem or where I might start looking to fix this?
>>> My guess would be your cross-compiler is added those to the CFLAGS because
>>> those flags are not set on a "normal" compilation...
>>>
>>> steved.
>>>
>>>> Best,
>>>>
>>>> Patrick Dignan
>> I believe you are correct, however I think it should be using the ARM
>> specific compiler when trying to cross-compile.  I don't know enough about
>> automake and cross-compiling to be sure, but I think that it doesn't set the
>> CC variable correctly.  It does seem to configure correctly though, since it
>> shows the proper compiler being found: "checking for
>> armv7a-cros-linux-gnueabi-gcc... (cached) armv7a-cros-linux-gnueabi-gcc",
>> but then it uses the normal gcc.
>>
>> Thanks for the help!
>>
>> Best,
>>
>> Patrick Dignan
> This is just a guess, but I'm suspicious of these lines in
> tools/locktest/Makefile.am:
>
> CC=$(CC_FOR_BUILD)
> LIBTOOL = @LIBTOOL@ --tag=CC
>
> This might have been an oversite when the original conversion to
> automake was done.  What happens if you comment those lines out (and
> then re-run autogen.sh)?  Note that Makefile.am for rpcgen and
> rpcdebug also have these lines, but they may not need to be built when
> cross-compiling?
>
> K.C.
Hi Kevin,

You're absolutely right.  After I removed those lines from 
tools/locktest/Makefile.am, tools/rpcdebug/Makefile.am, and 
tools/rpcgen/Makefile.am the compile worked successfully.

Thanks for the help!

Here's the patch.  I haven't tested it yet, but it allowed me to compile 
nfs-utils, so it may at least help others out.

Best,

Patrick Dignan

diff -Naurb nfs-utils-1.1.4.orig/tools/locktest/Makefile.am 
nfs-utils-1.1.4.mod/tools/locktest/Makefile.am
--- nfs-utils-1.1.4.orig/tools/locktest/Makefile.am    2008-10-17 
07:20:09.000000000 -0700
+++ nfs-utils-1.1.4.mod/tools/locktest/Makefile.am    2011-01-25 
13:43:13.166298908 -0800
@@ -1,8 +1,5 @@
  ## Process this file with automake to produce Makefile.in

-CC=$(CC_FOR_BUILD)
-LIBTOOL = @LIBTOOL@ --tag=CC
-
  noinst_PROGRAMS = testlk
  testlk_SOURCES = testlk.c
  testlk_CFLAGS=$(CFLAGS_FOR_BUILD)
diff -Naurb nfs-utils-1.1.4.orig/tools/rpcdebug/Makefile.am 
nfs-utils-1.1.4.mod/tools/rpcdebug/Makefile.am
--- nfs-utils-1.1.4.orig/tools/rpcdebug/Makefile.am    2008-10-17 
07:20:09.000000000 -0700
+++ nfs-utils-1.1.4.mod/tools/rpcdebug/Makefile.am    2011-01-25 
13:43:23.567549833 -0800
@@ -1,8 +1,5 @@
  ## Process this file with automake to produce Makefile.in

-CC=$(CC_FOR_BUILD)
-LIBTOOL = @LIBTOOL@ --tag=CC
-
  man8_MANS = rpcdebug.man
  EXTRA_DIST = $(man8_MANS)

diff -Naurb nfs-utils-1.1.4.orig/tools/rpcgen/Makefile.am 
nfs-utils-1.1.4.mod/tools/rpcgen/Makefile.am
--- nfs-utils-1.1.4.orig/tools/rpcgen/Makefile.am    2008-10-17 
07:20:09.000000000 -0700
+++ nfs-utils-1.1.4.mod/tools/rpcgen/Makefile.am    2011-01-25 
13:43:34.836298823 -0800
@@ -1,8 +1,5 @@
  ## Process this file with automake to produce Makefile.in

-CC=$(CC_FOR_BUILD)
-LIBTOOL = @LIBTOOL@ --tag=CC
-
  noinst_PROGRAMS = rpcgen
  rpcgen_SOURCES = rpc_clntout.c rpc_cout.c rpc_hout.c rpc_main.c \
                  rpc_parse.c rpc_scan.c rpc_svcout.c rpc_tblout.c \



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