Fix error when running "make distcheck"

Error message:
  make: *** No rule to make target `build-aux/acx_pthread.m4', needed by
  `distdir'.  Stop.

Macro acx_pthread.m4 was previously in build-aux subdirectory. It is now in
m4 subdirectory.

diff --git a/Makefile.am b/Makefile.am
index 7084e9e..6b54cee 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,7 +6,7 @@ SUBDIRS = src doc
 
 ## We want these in the dist tarball
 EXTRA_DIST = autogen.sh \
-             $(ac_aux_dir)/acx_pthread.m4 \
+             m4/acx_pthread.m4 \
              pixmaps
 
 ACLOCAL_AMFLAGS = -I m4