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-rw-r--r--tools/m4/ax_prog_highlight.m45
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/m4/ax_prog_highlight.m4 b/tools/m4/ax_prog_highlight.m4
new file mode 100644
index 0000000..c98316c
--- /dev/null
+++ b/tools/m4/ax_prog_highlight.m4
@@ -0,0 +1,5 @@
+AC_DEFUN([AX_PROG_HIGHLIGHT],
+ [AC_ARG_VAR([HIGHLIGHT], [path to highlight command])
+ AC_CHECK_PROG([HIGHLIGHT], [highlight], [highlight])
+ AS_IF([test x"$HIGHLIGHT" = x], [$1])
+ AM_CONDITIONAL([HAVE_HIGHLIGHT], [test x"$HIGHLIGHT" != x])])