On 14/06/12 05:01, Mathieu Desnoyers wrote: > * John Steele Scott ([email protected]) wrote: >> On 13/06/12 17:40, Mathieu Desnoyers wrote: >>> * John Steele Scott ([email protected]) wrote: >>>> http://lists.lttng.org/pipermail/lttng-dev/2012-May/017927.html >>>> >>>> I tried to build the latest urcu (git master e51500) on a Centos 6.2 box, >>>> and got: >>>> >>>> jscott@dxi0-62:~/src/userspace-rcu$ make -j4 >>>> CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh >>>> /users/jscott/src/userspace-rcu/config/missing --run aclocal-1.11 -I config >>>> CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh >>>> /users/jscott/src/userspace-rcu/config/missing --run autoconf >>>> cd . && /bin/sh /users/jscott/src/userspace-rcu/config/missing --run >>>> automake-1.11 --foreign >>>> configure:4010: error: possibly undefined macro: m4_ifnblank >>>> If this token and others are legitimate, please use m4_pattern_allow. >>>> See the Autoconf documentation. >>>> make: *** [configure] Error 1 >>>> make: *** Waiting for unfinished jobs.... >>>> >>>> Some digging showed that the macro m4_ifnblank requires autoconf 2.64. >>>> Centos 6.2 has autoconf 2.63. :( >>>> >>>> I just worked around it by reverting commit a767fd locally, then I can >>>> build fine. >>> Thanks for pointing this out! Can you try the following patch and let me >>> know if it fixes your issue ? >>> >>> >> Mathieu, >> >> Thanks for your quick response. Unfortunately, with that patch, ./configure >> fails like: >> > [...] >> It seems it doesn't like the empty else..fi clause. If I put a command in >> there ("true", "echo", whatever), configure completes and I can build >> successfully. > Can you try with the following ? I just tested it with autoconf 2.63 > here and it seems to work fine now. > > > diff --git a/config/ax_tls.m4 b/config/ax_tls.m4 > index 033e3b1..5ab1a41 100644 > --- a/config/ax_tls.m4 > +++ b/config/ax_tls.m4 > @@ -44,7 +44,23 @@ > # modified version of the Autoconf Macro, you may extend this special > # exception to the GPL to apply to your modified version as well. > > -#serial 10 > +#serial 11 > + > +# Define m4_ifblank and m4_ifnblank macros from introduced in > +# autotools 2.64 m4sugar.m4 if using an earlier autotools. > + > +ifdef([m4_ifblank], [], [ > +m4_define([m4_ifblank], > +[m4_if(m4_translit([[$1]], [ ][ ][ > +]), [], [$2], [$3])]) > +]) > + > + > +ifdef([m4_ifnblank], [], [ > +m4_define([m4_ifnblank], > +[m4_if(m4_translit([[$1]], [ ][ ][ > +]), [], [$3], [$2])]) > +]) > > AC_DEFUN([AX_TLS], [ > AC_MSG_CHECKING(for thread local storage (TLS) class) > diff --git a/configure.ac b/configure.ac > index db34935..5f6bc40 100644 > --- a/configure.ac > +++ b/configure.ac > @@ -28,7 +28,7 @@ AH_TEMPLATE([CONFIG_RCU_COMPAT_ARCH], [Compatibility mode > for i386 which lacks c > AH_TEMPLATE([CONFIG_RCU_ARM_HAVE_DMB], [Use the dmb instruction if available > for use on ARM.]) > AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.]) > > -AX_TLS([AC_DEFINE_UNQUOTED([CONFIG_RCU_TLS], $ac_cv_tls)], []) > +AX_TLS(AC_DEFINE_UNQUOTED([CONFIG_RCU_TLS], $ac_cv_tls), [:]) > > # Checks for programs. > AC_PROG_CC >
Mathieu, This fixed it for me too. Thanks, John _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
