[Click] [PATCH] Fix configure error

[Matteo Croce]

Hi Eddie,

this is a minimal set of CFLAGS that make the configure tests fail:

$(call cc-option, -mno-check-zero-division)
-DVMLINUX_LOAD_ADDRESS="0xffffffff80060000"

Cheers,
Matteo

2013/11/14 Eddie Kohler <ekohler at gmail.com>:
> Hi Matteo,
>
> Argh, the process of extracting flags from Linux. Can you give a
> sample of the flags that were causing a problem? Getting rid of the
> special characters might not be good enough; we might need to
> recursively expand the make variables.
>
> Eddie
>
>
> On Thu, Nov 14, 2013 at 5:03 AM, Matteo Croce <matteo at openwrt.org> wrote:
>> Strip special characters like $ or " from CFLAGS which causes all configure test to fail
>> ---
>>  configure    | 2 +-
>>  configure.in | 2 +-
>>  2 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/configure b/configure
>> index 83632c5..d422f4e 100755
>> --- a/configure
>> +++ b/configure
>> @@ -10693,7 +10693,7 @@ $as_echo_n "checking for Linux kernel compilation flags... " >&6; }
>>         echo >conftest.c
>>         make -C $linux_builddir M="`pwd`" $linux_makeargs --no-print-directory -p conftest.o >conftest.dat 2>&1
>>         for v in KBUILD_CPPFLAGS KBUILD_CFLAGS CPPFLAGS CFLAGS LINUXINCLUDE debug_flags; do
>> -           eval l$v="'""`grep ^$v' *:*=' conftest.dat | sed s/^$v' *:*= *//'`""'"
>> +           eval l$v="'""`grep ^$v' *:*=' conftest.dat | sed -e s/^$v' *:*= *//' -e 's/\$\(.*\)//' -e 's/"//g'`""'"
>>         done
>>         if test -z "$lKBUILD_CPPFLAGS$lKBUILD_CFLAGS$lCPPFLAGS$lCFLAGS$lLINUXINCLUDE"; then
>>             { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
>> diff --git a/configure.in b/configure.in
>> index 869cacb..2f699e1 100644
>> --- a/configure.in
>> +++ b/configure.in
>> @@ -1224,7 +1224,7 @@ if test $ac_have_linux_kernel = y; then
>>         echo >conftest.c
>>         make -C $linux_builddir M="`pwd`" $linux_makeargs --no-print-directory -p conftest.o >conftest.dat 2>&1
>>         for v in KBUILD_CPPFLAGS KBUILD_CFLAGS CPPFLAGS CFLAGS LINUXINCLUDE debug_flags; do
>> -           eval l$v="'""`grep ^$v' *:*=' conftest.dat | sed s/^$v' *:*= *//'`""'"
>> +           eval l$v="'""`grep ^$v' *:*=' conftest.dat | sed -e s/^$v' *:*= *//' -e 's/\$\(.*\)//' -e 's/"//g'`""'"
>>         done
>>         if test -z "$lKBUILD_CPPFLAGS$lKBUILD_CFLAGS$lCPPFLAGS$lCFLAGS$lLINUXINCLUDE"; then
>>             AC_MSG_RESULT([not found])
>> --
>> 1.8.3.2
>>
>> _______________________________________________
>> click mailing list
>> click at amsterdam.lcs.mit.edu
>> https://amsterdam.lcs.mit.edu/mailman/listinfo/click



-- 
Matteo Croce
OpenWrt Developer
  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 BARRIER BREAKER
 -----------------------------------------------------
  * 1/2 oz Galliano         Pour all ingredients into
  * 4 oz cold Coffee        an irish coffee mug filled
  * 1 1/2 oz Dark Rum       with crushed ice. Stir.
  * 2 tsp. Creme de Cacao
 -----------------------------------------------------