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-rw-r--r--src/nvim/os/env.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/src/nvim/os/env.c b/src/nvim/os/env.c
index 4707b0a326..5a3c1ef2c8 100644
--- a/src/nvim/os/env.c
+++ b/src/nvim/os/env.c
@@ -9,6 +9,7 @@
#include "nvim/vim.h"
#include "nvim/ascii.h"
#include "nvim/charset.h"
+#include "nvim/fileio.h"
#include "nvim/os/os.h"
#include "nvim/memory.h"
#include "nvim/message.h"
@@ -18,6 +19,10 @@
#include "nvim/ex_getln.h"
#include "nvim/version.h"
+#ifdef WIN32
+#include "nvim/mbyte.h" // for utf8_to_utf16, utf16_to_utf8
+#endif
+
#ifdef HAVE__NSGETENVIRON
#include <crt_externs.h>
#endif
@@ -45,7 +50,21 @@ bool os_env_exists(const char *name)
int os_setenv(const char *name, const char *value, int overwrite)
FUNC_ATTR_NONNULL_ALL
{
-#ifdef HAVE_SETENV
+#ifdef WIN32
+ size_t envbuflen = strlen(name) + strlen(value) + 2;
+ char *envbuf = xmalloc(envbuflen);
+ snprintf(envbuf, envbuflen, "%s=%s", name, value);
+
+ WCHAR *p;
+ utf8_to_utf16(envbuf, &p);
+ xfree(envbuf);
+ if (p == NULL) {
+ return -1;
+ }
+ _wputenv(p);
+ xfree(p); // Unlike Unix systems, we can free the string for _wputenv().
+ return 0;
+#elif defined(HAVE_SETENV)
return setenv(name, value, overwrite);
#elif defined(HAVE_PUTENV_S)
if (!overwrite && os_getenv(name) != NULL) {