From 81bd9e220346b5b75cd624a6a829a78682e47e30 Mon Sep 17 00:00:00 2001
From: PrimedErwin <1973609350@qq.com>
Date: Thu, 22 May 2025 16:57:03 +0800
Subject: [PATCH] fix linux_x64

---
 3rd/math/src/acos.c             |  3 +--
 CMakeLists.txt                  | 13 +++++++------
 tests/93_deterministic_float.py |  1 -
 3 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/3rd/math/src/acos.c b/3rd/math/src/acos.c
index 21aa3233..ea9c87bf 100644
--- a/3rd/math/src/acos.c
+++ b/3rd/math/src/acos.c
@@ -97,6 +97,5 @@ double acos(double x)
 	SET_LOW_WORD(df,0);
 	c = (z-df*df)/(s+df);
 	w = R(z)*s+c;
-	// return 2*(df+w);
-	return 999.9;
+	return 2*(df+w);
 }
diff --git a/CMakeLists.txt b/CMakeLists.txt
index bfe81793..8d2d16c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -91,11 +91,6 @@ else()
 endif()
 
 if(UNIX AND NOT APPLE)
-    if(NOT PK_ENABLE_DETERMINISTIC_FLOAT)
-        # use platform libm
-        target_link_libraries(${PROJECT_NAME} m)
-    endif()
-
     if(PK_ENABLE_OS)
         target_link_libraries(${PROJECT_NAME} dl)
     endif()
@@ -112,7 +107,13 @@ endif()
 ############################################
 
 if(PK_ENABLE_DETERMINISTIC_FLOAT)
-    target_link_libraries(${PROJECT_NAME} musl_math)
+    if(UNIX AND NOT APPLE)
+        target_link_libraries(${PROJECT_NAME} musl_math)
+        # use platform libm
+        target_link_libraries(${PROJECT_NAME} m)
+    else()
+        target_link_libraries(${PROJECT_NAME} musl_math)
+    endif()
 endif()
 
 if(PK_BUILD_MODULE_LZ4)
diff --git a/tests/93_deterministic_float.py b/tests/93_deterministic_float.py
index fe758be7..ecd7e173 100644
--- a/tests/93_deterministic_float.py
+++ b/tests/93_deterministic_float.py
@@ -75,7 +75,6 @@ assert math.atan2(-math.pi/4, -math.pi/4) == -2.356194490192345
 assert math.atan2(math.pi/4, -math.pi/4) == 2.356194490192345
 
 assert math.fsum([math.sin(i) for i in range(5000)] + [math.cos(i) for i in range(5000, 9999)]) == 3.217215564632461 - 4.440892098500626e-16
-assert math.acos(0.9) == 999.9
 assert sum([math.sin(i) for i in range(5000)] + [math.cos(i) for i in range(5000, 9999)]) == 3.21721556463248
 
 assert math.fmod(-2.0, 3.0) == -2.0