diff --git a/freeglut/freeglut/CMakeLists.txt b/freeglut/freeglut/CMakeLists.txt
index 8f5ca1c..9ca349d 100644
--- a/freeglut/freeglut/CMakeLists.txt
+++ b/freeglut/freeglut/CMakeLists.txt
@@ -363,21 +363,21 @@ ENDIF()
 # pkg-config support, to install at $(libdir)/pkgconfig
 # Define static build dependencies
 IF(WIN32)
-  SET(PC_LIBS_PRIVATE "-lopengl32 -lwinmm -lgdi32")
+  SET(PC_LIBS_PRIVATE "-lopengl32 -lwinmm -lgdi32 -lm")
 ELSEIF(FREEGLUT_GLES2)
   IF(ANDROID)
-    SET(PC_LIBS_PRIVATE "-llog -landroid -lGLESv2 -lEGL")
+    SET(PC_LIBS_PRIVATE "-llog -landroid -lGLESv2 -lEGL -lm")
   ELSE()
-    SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv2 -lEGL")
+    SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv2 -lEGL -lm")
   ENDIF()
 ELSEIF(FREEGLUT_GLES1)
   IF(ANDROID)
-    SET(PC_LIBS_PRIVATE "-llog -landroid -lGLESv1_CM -lEGL")
+    SET(PC_LIBS_PRIVATE "-llog -landroid -lGLESv1_CM -lEGL -lm")
   ELSE()
-    SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv1_CM -lEGL")
+    SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGLESv1_CM -lEGL -lm")
   ENDIF()
 ELSE()
-  SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGL")
+  SET(PC_LIBS_PRIVATE "-lX11 -lXxf86vm -lXrandr -lGL -lm")
 ENDIF()
 # Client applications need to define FreeGLUT GLES version to
 # bootstrap headers inclusion in freeglut_std.h: