From 5fbef6a07470912e033f316eeb42ff3e54877f9d Mon Sep 17 00:00:00 2001
From: Andres Mejia <amejia004@gmail.com>
Date: Sat, 22 Sep 2012 18:04:51 -0400
Subject: [PATCH] Implement command to test if commands are available in the
 current platform.

---
 libarchive/test/main.c | 12 ++++++++++++
 libarchive/test/test.h |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/libarchive/test/main.c b/libarchive/test/main.c
index 68e965adc..5f9b4825d 100644
--- a/libarchive/test/main.c
+++ b/libarchive/test/main.c
@@ -1911,6 +1911,18 @@ canGzip(void)
 /*
  * Can this platform run the lrzip program?
  */
+int
+canRunCommand(const char *cmd)
+{
+  static int tested = 0, value = 0;
+  if (!tested) {
+    tested = 1;
+    if (systemf("%s %s", cmd, redirectArgs) == 0)
+      value = 1;
+  }
+  return (value);
+}
+
 int
 canLrzip(void)
 {
diff --git a/libarchive/test/test.h b/libarchive/test/test.h
index 11f173711..7ca2da7ac 100644
--- a/libarchive/test/test.h
+++ b/libarchive/test/test.h
@@ -275,6 +275,9 @@ int canGrzip(void);
 /* Return true if this platform can run the "gzip" program. */
 int canGzip(void);
 
+/* Return true if this platform can run the specified command. */
+int canRunCommand(const char *);
+
 /* Return true if this platform can run the "lrzip" program. */
 int canLrzip(void);
 
-- 
2.47.2