mingw-w64's winstorecompat provides just dummy getenv() implementation
which always returns NULL. So it is not very usable for winstorecompat
UWP builds.
But mingw-w64's winstorecompat provides getenv_s() which returns the real
environment variable content.
So replace getenv() call by the getenv_s() which makes getopt() to work in
both normal and UWP builds.
---
mingw-w64-crt/misc/getopt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mingw-w64-crt/misc/getopt.c b/mingw-w64-crt/misc/getopt.c
index 01b269d0a4d9..5fb7868429ad 100644
--- a/mingw-w64-crt/misc/getopt.c
+++ b/mingw-w64-crt/misc/getopt.c
@@ -319,6 +319,7 @@ getopt_internal(int nargc, char * const *nargv, const char
*options,
{
char *oli; /* option letter list index */
int optchar, short_too;
+ size_t var_size;
static int posixly_correct = -1;
if (options == NULL)
@@ -339,7 +340,7 @@ getopt_internal(int nargc, char * const *nargv, const char
*options,
* optreset != 0 for GNU compatibility.
*/
if (posixly_correct == -1 || optreset != 0)
- posixly_correct = (getenv("POSIXLY_CORRECT") != NULL);
+ posixly_correct = (getenv_s(&var_size, NULL, 0,
"POSIXLY_CORRECT") == 0 && var_size > 0);
if (*options == '-')
flags |= FLAG_ALLARGS;
else if (posixly_correct || *options == '+')
--
2.20.1
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