try GTSAM_SHARED_LIB on cephes

Author: talregev

gtsam/3rdparty/cephes/CMakeLists.txt

@@ -9,6 +9,7 @@ project(
 configure_file("dllexport.h.in" "dllexport.h")
 
 set(CEPHES_HEADER_FILES
+    ${PROJECT_BINARY_DIR}/dllexport.h
     cephes.h
     cephes/dd_idefs.h
     cephes/dd_real.h

gtsam/3rdparty/cephes/dllexport.h.in

@@ -11,10 +11,10 @@
 
 #pragma once
 
-#cmakedefine01 BUILD_SHARED_LIBS
+#cmakedefine01 GTSAM_SHARED_LIB
 
 #ifdef _WIN32
-#  if !BUILD_SHARED_LIBS
+#  if !GTSAM_SHARED_LIB
 #      define CEPHES_EXPORT
 #      define CEPHES_EXTERN_EXPORT extern
 #  else
@@ -31,4 +31,4 @@
 #endif
 #endif
 
-#undef BUILD_SHARED_LIBS
+#undef GTSAM_SHARED_LIB