configure.ac: check for presence / add libgnugetopt to support

[pspp-builds.git] / src / algorithm.c

diff --git a/src/algorithm.c b/src/algorithm.c
index 89e813defa12b7ce4b3588ce194a7dc0dfb99e9c..230b1437f214ca6090979679bed2be9747051625 100644 (file)
--- a/src/algorithm.c
+++ b/src/algorithm.c
@@ -511,7 +511,10 @@ lexicographical_compare_3way (const void *array1, size_t count1,
    Engineering a sort function; Jon Bentley and M. Douglas McIlroy;
    Software - Practice and Experience; Vol. 23 (11), 1249-1265, 1993.  */
 
+#ifdef HAVE_ALLOCA_H
 #include <alloca.h>
+#endif
+
 #include <limits.h>
 #include <stdlib.h>
 #include <string.h>