[PATCH] bfd: Define func prototype for old mingw

["Torbjörn SVENSSON" <torbjorn.svensson@foss.st.com>]

In commit 68e80d96a84282d547f3b3c1234c99009521630c, the usage of
___lc_codepage_func was introduced to determine the current encoding.
Prior to version 9.0 of MinGW-w64, the function prototype for
___lc_codepage_func was missing and caused
error: implicit declaration of function ‘___lc_codepage_func’
when building.  This changeset adds a conditonal definition of
___lc_codepage_func to allow a sucessful build with MinGW-w64.

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
---
 bfd/bfdio.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bfd/bfdio.c b/bfd/bfdio.c
index a7c7d5bd363..59f79203b88 100644
--- a/bfd/bfdio.c
+++ b/bfd/bfdio.c
@@ -29,6 +29,11 @@
 #if defined (_WIN32)
 #include <windows.h>
 #include <locale.h>
+
+#if defined(__MINGW64_VERSION_MAJOR) && __MINGW64_VERSION_MAJOR < 9
+/* This prototype was added to locale.h in version 9.0 of MinaGW-w64.  */
+_CRTIMP unsigned int __cdecl ___lc_codepage_func(void);
+#endif
 #endif
 
 #ifndef S_IXUSR
-- 
2.25.1