[dpdk-dev] [PATCH v2] eal: fix warnings on Windows

[Pallavi Kadam]

This patch fixes bunch of warnings when compiling on Windows
such as the use of an unsafe string function (strerror),
[-Wunused-const-variable] in getopt.c and
[-Wunused-variable], [-Wunused-function] in eal_common_options.c

v2 changes:
        Excluded dirent.h file on Windows temporarily.
        (This file will stay on Windows for later use)

Signed-off-by: Ranjit Menon <ranjit.me...@intel.com>
Signed-off-by: Pallavi Kadam <pallavi.ka...@intel.com>
Tested-by: Pallavi Kadam <pallavi.ka...@intel.com>
---
 lib/librte_eal/common/eal_common_options.c | 8 +++++++-
 lib/librte_eal/windows/getopt.c            | 4 ++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/librte_eal/common/eal_common_options.c 
b/lib/librte_eal/common/eal_common_options.c
index 8f2cbd1c6..0546beb3a 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -18,7 +18,9 @@
 #endif
 #include <sys/types.h>
 #include <sys/stat.h>
+#ifndef RTE_EXEC_ENV_WINDOWS
 #include <dirent.h>
+#endif
 
 #include <rte_string_fns.h>
 #include <rte_eal.h>
@@ -115,8 +117,10 @@ struct shared_driver {
 static struct shared_driver_list solib_list =
 TAILQ_HEAD_INITIALIZER(solib_list);
 
+#ifndef RTE_EXEC_ENV_WINDOWS
 /* Default path of external loadable drivers */
 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
+#endif
 
 /*
  * Stringified version of solib path used by dpdk-pmdinfo.py
@@ -329,6 +333,7 @@ eal_plugin_add(const char *path)
        return 0;
 }
 
+#ifndef RTE_EXEC_ENV_WINDOWS
 static int
 eal_plugindir_init(const char *path)
 {
@@ -362,6 +367,7 @@ eal_plugindir_init(const char *path)
        /* XXX this ignores failures from readdir() itself */
        return (dent == NULL) ? 0 : -1;
 }
+#endif
 
 int
 eal_plugins_init(void)
@@ -394,8 +400,8 @@ eal_plugins_init(void)
                }
 
        }
-       return 0;
 #endif
+       return 0;
 }
 
 /*
diff --git a/lib/librte_eal/windows/getopt.c b/lib/librte_eal/windows/getopt.c
index 170c9b5e0..a08f7c109 100644
--- a/lib/librte_eal/windows/getopt.c
+++ b/lib/librte_eal/windows/getopt.c
@@ -25,8 +25,8 @@ int   opterr = 1;             /* if error message should be 
printed */
 int    optind = 1;             /* index into parent argv vector */
 int    optopt = '?';           /* character checked for validity */
 
-static void pass(void) {}
-#define warnx(a, ...) pass()
+static void pass(const char *a) {(void) a; }
+#define warnx(a, ...) pass(a)
 
 #define PRINT_ERROR    ((opterr) && (*options != ':'))
 
-- 
2.18.0.windows.1