fmt: portable api macro

6 years ago · 25c42b00dc
parent 54089dcbbb
commit 25c42b00dc
1 changed files with 9 additions and 5 deletions
--- a/include/spdlog/fmt/bundled/core.h
+++ b/include/spdlog/fmt/bundled/core.h
@ -155,12 +155,16 @@
 # define FMT_BEGIN_NAMESPACE namespace fmt { FMT_INLINE_NAMESPACE v5 {
 #endif

-#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
+#if !defined(FMT_HEADER_ONLY)
+# if defined(_WIN32) || defined(__CYGWIN__)
 #  ifdef FMT_EXPORT
 #   define FMT_API __declspec(dllexport)
 #  elif defined(FMT_SHARED)
 #   define FMT_API __declspec(dllimport)
 #  endif
+# elif __GNUC__ >= 4
+#  define FMT_API __attribute__((visibility ("default")))
+# endif
 #endif
 #ifndef FMT_API
 # define FMT_API