bug#39764: [PATCH] IBM Z DFLTCC: add STREQ definition

[Ilya Leoshkevich]

Commit 81c9fe4d0986 replaced !strcmp with STREQ in order to be compliant
with the gnulib linter, however, gnulib does not provide STREQ!

Quite a few gnulib .c files contain private definitions of STREQ. This
patch just goes with the flow and does the same in dfltcc.c.
---
 dfltcc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dfltcc.c b/dfltcc.c
index 1d6d74c..432c68c 100644
--- a/dfltcc.c
+++ b/dfltcc.c
@@ -72,6 +72,8 @@ typedef enum
 
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
 
+#define STREQ(a, b) (strcmp (a, b) == 0)
+
 struct dfltcc_qaf_param
 {
   char fns[16];
-- 
2.23.0