build: Use newer AX_PTHREAD instead of ACX_PTHREAD

diff --git a/common b/common
index 7bb2bce..f32cfcd 160000 (submodule)
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit 7bb2bcecda471a0d514a964365a78150f3ee5747
+Subproject commit f32cfcd4ede2ed23408e0df15cbf7a98d8adc8b1

diff --git a/configure.ac b/configure.ac
index 2c12e97..38c9c05 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -141,7 +141,7 @@ AC_SUBST(LIBM)
 AC_FUNC_MMAP
 
 dnl check for pthreads
-ACX_PTHREAD
+AX_PTHREAD
 
 dnl *** checks for header files ***