commit 4c0bbc0604c99a077aff91e10948befc073c4640
author Andreas Schuh <andreas.schuh.84@gmail.com> Fri Nov 09 17:46:42 2018 +0000
committer Andreas Schuh <andreas.schuh.84@gmail.com> Sun Nov 11 20:35:02 2018 +0000
tree 86e74e477594248244458ab5573f0c3a9cf332cd
parent 0c7012d647c783e38c47f137eb51f9677ae161c4

fix: Use 'default' visibility for GCC

src/config.h

diff --git a/src/config.h b/src/config.h
index b90b7e6..c33d207 100644
--- a/src/config.h
+++ b/src/config.h
@@ -36,6 +36,8 @@
 #ifndef GFLAGS_DLL_DECL
 #  if GFLAGS_IS_A_DLL && defined(_MSC_VER)
 #    define GFLAGS_DLL_DECL __declspec(dllexport)
+#  elif defined(__GNUC__) && __GNUC__ >= 4
+#    define GFLAGS_DLL_DECL __attribute__((visibility("default")))
 #  else
 #    define GFLAGS_DLL_DECL
 #  endif

src/gflags_declare.h.in

diff --git a/src/gflags_declare.h.in b/src/gflags_declare.h.in
index 752a34d..ab7bd24 100644
--- a/src/gflags_declare.h.in
+++ b/src/gflags_declare.h.in
@@ -58,6 +58,8 @@
 #ifndef GFLAGS_DLL_DECL
 #  if GFLAGS_IS_A_DLL && defined(_MSC_VER)
 #    define GFLAGS_DLL_DECL __declspec(dllimport)
+#  elif defined(__GNUC__) && __GNUC__ >= 4
+#    define GFLAGS_DLL_DECL __attribute__((visibility("default")))
 #  else
 #    define GFLAGS_DLL_DECL
 #  endif
@@ -67,6 +69,8 @@
 #ifndef GFLAGS_DLL_DECLARE_FLAG
 #  if GFLAGS_IS_A_DLL && defined(_MSC_VER)
 #    define GFLAGS_DLL_DECLARE_FLAG __declspec(dllimport)
+#  elif defined(__GNUC__) && __GNUC__ >= 4
+#    define GFLAGS_DLL_DECLARE_FLAG __attribute__((visibility("default")))
 #  else
 #    define GFLAGS_DLL_DECLARE_FLAG
 #  endif