cc -DHAVE_CONFIG_H -I. -I.. -DG_LOG_DOMAIN=\"GLib\" -DG_DISABLE_CAST_CHECKS -DG_DISABLE_DEPRECATED -DGLIB_COMPILATION -DPREFIX=/usr/pkg -DPKGLOCALEDIR=share -DPKG_SYSCONFDIR=/usr/pkg/etc -I/export/pkgsrc/devel/glib2/work.mini/.buildlink/include -pthread -O2 -Wall -MT gutils.lo -MD -MP -MF .deps/gutils.Tpo -c gutils.c -fPIC -DPIC -o .libs/gutils.o
gutils.c: In function `IA__g_get_system_data_dirs':
gutils.c:1860: error: parse error before '/' token
gutils.c: In function `IA__g_get_system_config_dirs':
gutils.c:1903: error: parse error before '/' token
gutils.c: In function `unalias_lang':
gutils.c:1978: error: parse error before '/' token
distcc[20924] ERROR: compile gutils.c on localhost failed
gmake[4]: *** [gutils.lo]

ttyp3:root@mini 21:39:01/050227(...devel/glib2)# sed -n -e '1860p' -e 1903p -e 1978p ./work.mini/glib-2.6.2/glib/gutils.c will returns following result

          data_dirs = PREFIX "/share/";
          conf_dirs = PKG_SYSCONFDIR "/xdg";
    read_aliases (PREFIX "/" PKGLOCALEDIR "/locale/locale.alias");

It seems to have extra spaces ?

Is this related to pkg/29347 ( as was fixed) ? That fix changes the Makefile. But I am using 1.66 already. By changing patch-ah seems to fix the problem.