1 files changed, 26 insertions, 0 deletions
diff --git a/pkgs/test/make-binary-wrapper/suffix.c b/pkgs/test/make-binary-wrapper/suffix.c
new file mode 100644
index 00000000000..d33f86c070c
--- /dev/null
+++ b/pkgs/test/make-binary-wrapper/suffix.c
@@ -0,0 +1,26 @@
+#define _GNU_SOURCE         /* See feature_test_macros(7) */
+#include <unistd.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <stdio.h>
+
+#define assert_success(e) do { if ((e) < 0) { perror(#e); abort(); } } while (0)
+
+void set_env_suffix(char *env, char *sep, char *suffix) {
+    char *existing = getenv(env);
+    if (existing) {
+        char *val;
+        assert_success(asprintf(&val, "%s%s%s", existing, sep, suffix));
+        assert_success(setenv(env, val, 1));
+        free(val);
+    } else {
+        assert_success(setenv(env, suffix, 1));
+    }
+}
+
+int main(int argc, char **argv) {
+    set_env_suffix("PATH", ":", "/usr/bin/");
+    set_env_suffix("PATH", ":", "/usr/local/bin/");
+    argv[0] = "/send/me/flags";
+    return execv("/send/me/flags", argv);
+}