[PATCH] buildtools: remove invalid option for Microsoft linker

[Andre Muezerie <andremue@linux.microsoft.com>]

When compiling "drivers" directory with MSVC the errors below popped up:

drivers/rte_mempool_stack.pmd.c(1): error C2143: syntax error:
    missing ')' before '('
drivers/rte_mempool_stack.pmd.c(1): error C2059: syntax error: ')'
drivers/rte_mempool_stack.pmd.c(1): error C2059: syntax error: ')'
drivers/rte_mempool_stack.pmd.c(1): error C2143: syntax error:
    missing ')' before 'const'
drivers/rte_mempool_stack.pmd.c(1): error C2091: function returns function

The fix is to use common macros compatible with MSVC.

Signed-off-by: Andre Muezerie <andremue@linux.microsoft.com>
---
 buildtools/pmdinfogen.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/buildtools/pmdinfogen.py b/buildtools/pmdinfogen.py
index dfb89500c0..116f05e7a8 100755
--- a/buildtools/pmdinfogen.py
+++ b/buildtools/pmdinfogen.py
@@ -192,7 +192,7 @@ def dump(self, file):
         dumped = json.dumps(self.__dict__)
         escaped = dumped.replace('"', '\\"')
         print(
-            'const char %s_pmd_info[] __attribute__((used)) = "PMD_INFO_STRING= %s";'
+            'const char %s_pmd_info[] __rte_used = "PMD_INFO_STRING= %s";'
             % (self.name, escaped),
             file=file,
         )
@@ -252,7 +252,8 @@ def open_output(path):
 
 def write_header(output):
     output.write(
-        "static __attribute__((unused)) const char *generator = \"%s\";\n" % sys.argv[0]
+        "#include <rte_common.h>\n"
+        "static __rte_unused const char *generator = \"%s\";\n" % sys.argv[0]
     )
 
 
-- 
2.48.1.vfs.0.1