Hi,

> On 22 May 2020, at 10:05, Wei Liu <[email protected]> wrote:
> 
> On Fri, May 22, 2020 at 08:41:17AM +0000, Bertrand Marquis wrote:
>> Hi,
>> 
>> As a consequence of this fix, the following has been committed (I guess as a 
>> consequence of regenerating the configure scripts):
>> diff --git a/tools/configure b/tools/configure
>> index 375430df3f..36596389b8 100755
>> --- a/tools/configure
>> +++ b/tools/configure
>> @@ -4678,6 +4678,10 @@ for ldflag in $APPEND_LIB
>> do
>>     APPEND_LDFLAGS="$APPEND_LDFLAGS -L$ldflag"
>> done
>> +if  ! -z $EXTRA_PREFIX ; then
>> +    CPPFLAGS="$CPPFLAGS -I$EXTRA_PREFIX/include"
>> +    LDFLAGS="$LDFLAGS -L$EXTRA_PREFIX/lib"
>> +fi
>> CPPFLAGS="$PREPEND_CPPFLAGS $CPPFLAGS $APPEND_CPPFLAGS"
>> LDFLAGS="$PREPEND_LDFLAGS $LDFLAGS $APPEND_LDFLAGS”
>> 
>> This should be:
>> if  [ ! -z $EXTRA_PREFIX ]; then
>> 
>> As on other configure scripts.
>> 
>> During configure I have not the following error:
>> ./configure: line 4681: -z: command not found
>> 
>> Which is ignored but is adding -L/lib and -I/include to the CPPFLAGS and 
>> LDFLAGS
>> 
>> What should be the procedure to actually fix that (as the problem is coming 
>> from the configure script regeneration I guess) ? 
> 
> Does the following patch work for you?
> 
> diff --git a/m4/set_cflags_ldflags.m4 b/m4/set_cflags_ldflags.m4
> index 08f5c983cc63..cd34c139bc94 100644
> --- a/m4/set_cflags_ldflags.m4
> +++ b/m4/set_cflags_ldflags.m4
> @@ -15,7 +15,7 @@ for ldflag in $APPEND_LIB
> do
>     APPEND_LDFLAGS="$APPEND_LDFLAGS -L$ldflag"
> done
> -if [ ! -z $EXTRA_PREFIX ]; then
> +if test ! -z $EXTRA_PREFIX ; then
>     CPPFLAGS="$CPPFLAGS -I$EXTRA_PREFIX/include"
>     LDFLAGS="$LDFLAGS -L$EXTRA_PREFIX/lib"
> fi
> 
> 
> You will need to run autogen.sh to regenerate tools/configure.
> 

Yes that works on my side and generate tools/configure using “test”

But why are the [] being removed when generating tools/configure ?

Bertrand

> Wei.
> 
>> 
>> Bertrand
>> 
>>> On 5 May 2020, at 10:24, Roger Pau Monne <[email protected]> wrote:
>>> 
>>> The path provided by EXTRA_PREFIX should be added to the search path
>>> of the configure script, like it's done in Config.mk. Not doing so
>>> makes the search path for configure differ from the search path used
>>> by the build.
>>> 
>>> Signed-off-by: Roger Pau Monné <[email protected]>
>>> ---
>>> Please re-run autoconf.sh after applying.
>>> ---
>>> m4/set_cflags_ldflags.m4 | 4 ++++
>>> 1 file changed, 4 insertions(+)
>>> 
>>> diff --git a/m4/set_cflags_ldflags.m4 b/m4/set_cflags_ldflags.m4
>>> index cbad3c10b0..08f5c983cc 100644
>>> --- a/m4/set_cflags_ldflags.m4
>>> +++ b/m4/set_cflags_ldflags.m4
>>> @@ -15,6 +15,10 @@ for ldflag in $APPEND_LIB
>>> do
>>>    APPEND_LDFLAGS="$APPEND_LDFLAGS -L$ldflag"
>>> done
>>> +if [ ! -z $EXTRA_PREFIX ]; then
>>> +    CPPFLAGS="$CPPFLAGS -I$EXTRA_PREFIX/include"
>>> +    LDFLAGS="$LDFLAGS -L$EXTRA_PREFIX/lib"
>>> +fi
>>> CPPFLAGS="$PREPEND_CPPFLAGS $CPPFLAGS $APPEND_CPPFLAGS"
>>> LDFLAGS="$PREPEND_LDFLAGS $LDFLAGS $APPEND_LDFLAGS"])
>>> 
>>> -- 
>>> 2.26.2

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