idris_support: fix environ for macOS (#3324)

* idris_support: fix environ for macOS * Add test that touches the new implementation of environ --------- Co-authored-by: Sergey Fedorov <[email protected]> Co-authored-by: Mathew Polzin <[email protected]>
idris-lang · Jul 3, 2024 · 1931509 · 1931509
1 parent efce152
commit 1931509
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diff --git a/support/c/idris_support.c b/support/c/idris_support.c
@@ -23,6 +23,9 @@ char **_argv;
 extern char **_environ;
 #include "windows/win_utils.h"
 #define environ _environ
+#elif defined(__APPLE__)
+#include <crt_externs.h>
+#define environ (*_NSGetEnviron())
 #else
 extern char **environ;
 #endif

diff --git a/tests/base/system_get_environment/Test.idr b/tests/base/system_get_environment/Test.idr
@@ -0,0 +1,8 @@
+import System
+
+main : IO ()
+main = do
+  env <- getEnvironment
+  -- it better be non-empty because we set a variable before starting this test
+  printLn $ null env
+
diff --git a/tests/base/system_get_environment/expected b/tests/base/system_get_environment/expected
@@ -0,0 +1 @@
+False
diff --git a/tests/base/system_get_environment/run b/tests/base/system_get_environment/run
@@ -0,0 +1,4 @@
+. ../../testutils.sh
+
+idris2 --cg chez -o test Test.idr
+HELLO=hi ./build/exec/test