The problem is in this custom check but I have no idea where exactly: dnl Special check for sysconf() to ensure _SC_PAGESIZE is also available. AC_CACHE_CHECK([for sysconf(_SC_PAGESIZE)], ac_cv_sysconf_with_sc_pagesize, [AC_COMPILE_IFELSE(AC_LANG_PROGRAM([#include <unistd.h>], [sysconf(_SC_PAGESIZE)])], [ac_cv_sysconf_with_sc_pagesize=yes], [ac_cv_sysconf_with_sc_pagesize=no])]) if test x"$ac_cv_sysconf_with_sc_pagesize" = x"yes"; then AC_DEFINE([HAVE_SYSCONF_WITH_SC_PAGESIZE], 1, [Define to 1 if you have sysconf(_SC_PAGESIZE).]) fi It's probably over or underquoting, but I'm not even sure if it's worth keeping it around. Up to you.
fixed in 1.1.4
