From cfdae6569722c9054fa0faef01a659090ec410dc Mon Sep 17 00:00:00 2001
From: Matthias Kuhn <matthias@opengis.ch>
Date: Sun, 10 Sep 2023 14:42:53 +0200
Subject: [PATCH] Fix building for ios

---
 src/futils.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/futils.cpp b/src/futils.cpp
index eae19558fb..26a028355b 100644
--- a/src/futils.cpp
+++ b/src/futils.cpp
@@ -369,6 +369,14 @@ std::string getProcessPath() {
     auto path = fs::read_symlink(Internal::stringFormat("/proc/%d/path/a.out", getpid()));
 #elif defined(__unix__)
     auto path = fs::read_symlink("/proc/self/exe");
+#elif defined(__APPLE__)
+    // For apple systems other than macOS, e.g. iOS.
+    char pathbuf[2048];
+    uint32_t size = sizeof(pathbuf);
+    const int get_exec_path_failure = _NSGetExecutablePath(pathbuf, &size);
+    if (get_exec_path_failure)
+      return "unknown";  // pathbuf not big enough
+    auto path = fs::path(pathbuf);
 #endif
     return path.parent_path().string();
   } catch (const fs::filesystem_error&) {