I had 'configure' keel over with: ... checking for AIX... no checking for a working inclusion macro... configure: error: Cannot define a proper SMART_INCLUDE macro. Please report. The config.log (below) suggests that the problem is because I happen to have 'sparc' (a CPP symbol) as part of the pathname of my build dir. Thanks, Will ================= This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. configure:833: checking whether ln -s works configure:1098: checking host system type configure:1593: checking for gcc configure:1697: checking whether the C compiler (/ark/bin/gcc -I/ark/include -O2 -fstrict-aliasing -L/ark/lib) works configure:1715: /ark/bin/gcc -o conftest -I/ark/include -O2 -fstrict-aliasing -I/ark/include -L/ark/lib conftest.c 1>&5 configure:1743: checking whether the C compiler (/ark/bin/gcc -I/ark/include -O2 -fstrict-aliasing -L/ark/lib) is a cross-compiler configure:1748: checking whether we are using GNU C configure:1755: /ark/bin/gcc -E conftest.c configure:1773: checking whether /ark/bin/gcc accepts -g configure:2236: checking how to run the C preprocessor configure:2255: /ark/bin/gcc -E -I/ark/include conftest.c >/dev/null 2>conftest.out configure:2315: checking for AIX configure:2346: checking for a working inclusion macro configure:2360: /ark/bin/gcc -c -I/ark/include -O2 -fstrict-aliasing -I/ark/include conftest.c 1>&5 configure:2355: /item/ark-builds/xemacs--21.2.34/1-solaris2.6/conffoo.h: No such file or directory configure: failed program was: #line 2348 "configure" #include "confdefs.h" int main() { #define SMART_INCLUDE(path,file) <path/file> #define CONFFOO_H_PATH /item/ark-builds/xemacs--21.2.34/sparc-solaris2.6 #define CONFFOO_INCLUDE(file) SMART_INCLUDE (CONFFOO_H_PATH,file) #include CONFFOO_INCLUDE(conffoo.h) ; return 0; } configure:2388: /ark/bin/gcc -c -I/ark/include -O2 -fstrict-aliasing -I/ark/include conftest.c 1>&5 configure:2383: /item/ark-builds/xemacs--21.2.34/1-solaris2.6/conffoo.h: No such file or directory configure: failed program was: #line 2375 "configure" #include "confdefs.h" int main() { #define GLUE_INCLUDE(path,file) <##path##/##file##> #define SMART_INCLUDE(path,file) GLUE_INCLUDE(path,file) #define CONFFOO_H_PATH /item/ark-builds/xemacs--21.2.34/sparc-solaris2.6 #define CONFFOO_INCLUDE(file) SMART_INCLUDE(CONFFOO_H_PATH,file) #include CONFFOO_INCLUDE(conffoo.h) ; return 0; } configure:2417: /ark/bin/gcc -c -I/ark/include -O2 -fstrict-aliasing -I/ark/include conftest.c 1>&5 configure:2412: /item/ark-builds/xemacs--21.2.34/1-solaris2.6/conffoo.h: No such file or directory configure: failed program was: #line 2403 "configure" #include "confdefs.h" int main() { #define GLUE_INCLUDE_2(path,file) <##path##/##file##> #define GLUE_INCLUDE_1(path,file) GLUE_INCLUDE_2(path,file) #define SMART_INCLUDE(path,file) GLUE_INCLUDE_1(path,file) #define CONFFOO_H_PATH /item/ark-builds/xemacs--21.2.34/sparc-solaris2.6 #define CONFFOO_INCLUDE(file) SMART_INCLUDE (CONFFOO_H_PATH,file) #include CONFFOO_INCLUDE(conffoo.h) ; return 0; }