From 845bce401846732431f984907a0472e3f0fd8766 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sun, 5 Jan 2020 12:42:20 -0800
Subject: Move C_VISIBILITY_PRESET back to src/CMakeLists.txt.

This reverts a change by @compnerd in commit
b6ffaca93e2b539ec407aeb4fd588c7f9441e7a9.
We don't want this for api_tests, as it triggers this warning:

```
CMake Warning (dev) at api_test/CMakeLists.txt:1 (add_executable):
  Policy CMP0063 is not set: Honor visibility properties for all target
  types.  Run "cmake --help-policy CMP0063" for policy details.  Use the
  cmake_policy command to set the policy and suppress this warning.

  Target "api_test" of type "EXECUTABLE" has the following visibility
  properties set for C:

    C_VISIBILITY_PRESET

  For compatibility CMake is not honoring them for this target.
This warning is for project developers.  Use -Wno-dev to suppress it.
```
---
 src/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/CMakeLists.txt')

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 321b2b4..36ecbd6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -62,6 +62,10 @@ elseif (CMARK_SHARED)
   target_link_libraries(${PROGRAM} ${LIBRARY})
 endif()
 
+# -fvisibility=hidden
+set(CMAKE_C_VISIBILITY_PRESET hidden)
+set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
+
 if (CMARK_SHARED)
   add_library(${LIBRARY} SHARED ${LIBRARY_SOURCES})
   set_target_properties(${LIBRARY} PROPERTIES
-- 
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