tests: Migrate the mainmenu.lbx tests to the TAP system.

[liblbx.git] / m4 / md5sum.m4

diff --git a/m4/md5sum.m4 b/m4/md5sum.m4
new file mode 100644 (file)
index 0000000..d3926ba
--- /dev/null
+++ b/m4/md5sum.m4
@@ -0,0 +1,20 @@
+AC_DEFUN([DX_PROG_MD5SUM], [dnl
+AC_CHECK_PROGS([MD5SUM], [md5sum], [false])
+AC_CACHE_CHECK([whether md5sum works], [dx_cv_md5sum_works], [dnl
+       dx_cv_md5sum_works=yes
+       # Positive test
+       cat >conftest.md5 <<'EOF'
+d41d8cd98f00b204e9800998ecf8427e  /dev/null
+EOF
+       if $MD5SUM -c conftest.md5 >/dev/null 2>&1; then :; else
+               dx_cv_md5sum_works=no
+       fi
+       # Negative test
+       cat >conftest.md5 <<'EOF'
+d41d8cd98f00b204e9810998ecf8427e  /dev/null
+EOF
+       if $MD5SUM -c conftest.md5 >/dev/null 2>&1; then
+               dx_cv_md5sum_works=no
+       fi
+       rm -f conftest.md5
+])])