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Merge pull request #217 from Lastique/cygwin_dllattr

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Use dllimport/dllexport with clang and gcc on Cygwin.
This commit is contained in:
jzmaddock
2018-03-16 18:15:30 +00:00
committed by GitHub
parent f48572a067 3b709bc3ed
commit 2814b40640
2 changed files with 8 additions and 4 deletions
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8
include/boost/config/compiler/clang.hpp
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@ -98,11 +98,15 @@
//
// Dynamic shared object (DSO) and dynamic-link library (DLL) support
//
#if !defined(_WIN32) && !defined(__WIN32__) && !defined(WIN32)
#if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__CYGWIN__)
# define BOOST_HAS_DECLSPEC
# define BOOST_SYMBOL_EXPORT __attribute__((__dllexport__))
# define BOOST_SYMBOL_IMPORT __attribute__((__dllimport__))
#else
# define BOOST_SYMBOL_EXPORT __attribute__((__visibility__("default")))
# define BOOST_SYMBOL_IMPORT
# define BOOST_SYMBOL_VISIBLE __attribute__((__visibility__("default")))
#endif
#define BOOST_SYMBOL_VISIBLE __attribute__((__visibility__("default")))
//
// The BOOST_FALLTHROUGH macro can be used to annotate implicit fall-through

4
include/boost/config/compiler/gcc.hpp
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@ -99,10 +99,10 @@
// Dynamic shared object (DSO) and dynamic-link library (DLL) support
//
#if __GNUC__ >= 4
# if (defined(_WIN32) || defined(__WIN32__) || defined(WIN32)) && !defined(__CYGWIN__)
# if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__CYGWIN__)
// All Win32 development environments, including 64-bit Windows and MinGW, define
// _WIN32 or one of its variant spellings. Note that Cygwin is a POSIX environment,
// so does not define _WIN32 or its variants.
// so does not define _WIN32 or its variants, but still supports dllexport/dllimport.
# define BOOST_HAS_DECLSPEC
# define BOOST_SYMBOL_EXPORT __attribute__((__dllexport__))
# define BOOST_SYMBOL_IMPORT __attribute__((__dllimport__))