From 647e107f0019d2b3f4d3ecb232239ba007936bb5 Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Fri, 4 Jul 2025 10:05:25 -0500
Subject: [PATCH] adjustments for darwin/clang build

---
 example/ex1/ex1.cpp         | 30 +++++++++++++++++++++++++-----
 example/ex2_jit/ex2_jit.cpp | 13 +++++++++++--
 2 files changed, 36 insertions(+), 7 deletions(-)

diff --git a/example/ex1/ex1.cpp b/example/ex1/ex1.cpp
index 22e1b0b7..638e1bda 100644
--- a/example/ex1/ex1.cpp
+++ b/example/ex1/ex1.cpp
@@ -29,8 +29,28 @@
 #include "llvm/Transforms/Scalar/GVN.h"
 #include "llvm/Transforms/Scalar/Reassociate.h"
 #include "llvm/Transforms/Scalar/SimplifyCFG.h"
+#include <cmath>
 
-//double foo(double x) { return x; }
+namespace {
+    // need wrappers to fix type signature for osx/clang15.  Perhaps sqrt() is a macro or template (?)
+    double
+    xo_sqrt(double x)
+    {
+        return ::sqrt(x);
+    }
+
+    double
+    xo_sin(double x)
+    {
+        return ::sin(x);
+    }
+
+    double
+    xo_cos(double x)
+    {
+        return ::cos(x);
+    }
+}
 
 int
 main() {
@@ -82,7 +102,7 @@ main() {
     }
 
     {
-        auto expr = make_primitive("sqrt", &sqrt,
+        auto expr = make_primitive("sqrt", &xo_sqrt,
                                    false /*!explicit_symbol_def*/,
                                    llvmintrinsic::fp_sqrt);
 
@@ -105,7 +125,7 @@ main() {
     {
         /* (sqrt 2) */
 
-        auto fn = make_primitive("sqrt", &sqrt,
+        auto fn = make_primitive("sqrt", &xo_sqrt,
                                  false /*!explicit_symbol_def*/,
                                  llvmintrinsic::fp_sqrt);
         auto arg = make_constant(2.0);
@@ -132,11 +152,11 @@ main() {
         /* (lambda (x) (sin (cos x))) */
 
         auto sin = make_primitive("sin",
-                                  ::sin,
+                                  &xo_sin,
                                   false /*!explicit_symbol_def*/,
                                   llvmintrinsic::fp_sin);
         auto cos = make_primitive("cos",
-                                  ::cos,
+                                  &xo_cos,
                                   false /*!explicit_symbol_def*/,
                                   llvmintrinsic::fp_cos);
 
diff --git a/example/ex2_jit/ex2_jit.cpp b/example/ex2_jit/ex2_jit.cpp
index 3131f823..b21d5e41 100644
--- a/example/ex2_jit/ex2_jit.cpp
+++ b/example/ex2_jit/ex2_jit.cpp
@@ -33,6 +33,15 @@
 
 //double foo(double x) { return x; }
 
+namespace {
+    // need wrappers to pin type signature for osx/clang15
+    double
+    xo_sqrt(double x)
+    {
+        return ::sqrt(x);
+    }
+}
+
 int
 main() {
     using xo::scope;
@@ -68,7 +77,7 @@ main() {
 
     {
         auto sqrt = make_primitive("sqrt",
-                                   ::sqrt,
+                                   &xo_sqrt,
                                    false /*!explicit_symbol_def*/,
                                    llvmintrinsic::fp_sqrt);
 
@@ -115,7 +124,7 @@ main() {
 #elif CHOICE == 2
 #define FUNCTION_SYMBOL "twice"
         auto root = make_primitive("sqrt",
-                                   ::sqrt,
+                                   &xo_sqrt,
                                    false /*!explicit_symbol_def*/,
                                    llvmintrinsic::fp_sqrt);