I have the following in configure ac AC CHECK PROGS MAKE MAKE make gmake error if test x MAKE xerror then AC MSG ERROR cannot find a make command fi This has been in our project for a long time but in some set ups I get this error configure ac 45 error possibly undefined macro AC MSG ERROR If this token and others are legitimate please use m4 pattern allow See the Autoconf documentation The lines that were recently added above this AC CONFIG MACRO DIR m4 LT INIT Can anyone explain what causes this error and how to track down the problem EDIT Adding details about the differences Box that works uname -a Linux host1 2 6 38-13-generic 53-Ubuntu SMP Mon Nov 28 19 33 45 UTC 2011 x86 64 x86 64 x86 64 GNU Linux automake 1 11 1 autoconf 2 67 m4 1 4 14 libtoolize 2 2 6b Box that doesn t work Linux host2 2 6 32-35-generic-pae 78-Ubuntu SMP Tue Oct 11 17 01 12 UTC 2011 i686 GNU Linux automake 1 11 1 autoconf 2 65 m4 1 4 13 libtoolize 2 2 6b NEW EDIT only 32 bit machines experience this difficulty UPDATED I am able to reproduce the problem on a CentOS machine with autoconf 2 67 automake 1 11 1 libtool 2 2 6b and m4 1 4 14 Is this just a bug with 32-bit machines

possibly undefined macro: AC_MSG_ERROR

I had this same issue and found that pkg-config package was missing.

After installing the package, everything generated correctly.

~ Answered on 2012-01-26 20:00:13