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-rw-r--r--src/nvim/os/env.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/nvim/os/env.c b/src/nvim/os/env.c
index 0e052ced55..a791dca39c 100644
--- a/src/nvim/os/env.c
+++ b/src/nvim/os/env.c
@@ -46,7 +46,19 @@ 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
return setenv(name, value, overwrite);
+#elif defined(HAVE_PUTENV_S)
+ if (!overwrite && os_getenv(name) != NULL) {
+ return 0;
+ }
+ if (_putenv_s(name, value) == 0) {
+ return 0;
+ }
+ return -1;
+#else
+# error "This system has no implementation available for os_setenv()"
+#endif
}
/// Unset environment variable