diff options
Diffstat (limited to 'format')
| -rw-r--r-- | format/buildfile | 17 | ||||
| -rw-r--r-- | format/export | 36 | ||||
| -rw-r--r-- | format/format | 4 |
3 files changed, 54 insertions, 3 deletions
diff --git a/format/buildfile b/format/buildfile index 4edb840..5e86503 100644 --- a/format/buildfile +++ b/format/buildfile @@ -1,8 +1,21 @@ -lib{format}: {hxx cxx}{format} +lib{format}: {hxx cxx}{format} hxx{export} + +# For pre-releases use the complete version to make sure they cannot be used +# in place of another pre-release or the final version. +# +if $abi_prerelease + lib{format}: bin.lib.version = @-$version +else + lib{format}: bin.lib.version = @-$abi_major.$abi_minor cxx.poptions += -I$src_root +obja{*}: cxx.poptions += -DLIBFORMAT_STATIC_BUILD +objs{*}: cxx.poptions += -DLIBFORMAT_SHARED_BUILD + lib{format}: cxx.export.poptions = -I$src_root +liba{format}: cxx.export.poptions += -DLIBFORMAT_STATIC +libs{format}: cxx.export.poptions += -DLIBFORMAT_SHARED # Install into the format/ subdirectory of, say, /usr/include/. # -install.include = $install.include/format +install.include = $install.include/format/ diff --git a/format/export b/format/export new file mode 100644 index 0000000..39a37da --- /dev/null +++ b/format/export @@ -0,0 +1,36 @@ +// file: format/export -*- C++ -*- + +#pragma once + +// Normally we don't export class templates (but do complete specializations), +// inline functions, and classes with only inline member functions. Exporting +// classes that inherit from non-exported/imported bases (e.g., std::string) +// will end up badly. The only known workarounds are to not inherit or to not +// export. Also, MinGW GCC doesn't like seeing non-exported function being +// used before their inline definition. The workaround is to reorder code. In +// the end it's all trial and error. + +#if defined(LIBFORMAT_STATIC) // Using static. +# define LIBFORMAT_EXPORT +#elif defined(LIBFORMAT_STATIC_BUILD) // Building static. +# define LIBFORMAT_EXPORT +#elif defined(LIBFORMAT_SHARED) // Using shared. +# ifdef _WIN32 +# define LIBFORMAT_EXPORT __declspec(dllimport) +# else +# define LIBFORMAT_EXPORT +# endif +#elif defined(LIBFORMAT_SHARED_BUILD) // Building shared. +# ifdef _WIN32 +# define LIBFORMAT_EXPORT __declspec(dllexport) +# else +# define LIBFORMAT_EXPORT +# endif +#else +// If none of the above macros are defined, then we assume we are being used +// by some third-party build system that cannot/doesn't signal the library +// type. Note that this fallback works for both static and shared but in case +// of shared will be sub-optimal compared to having dllimport. +// +# define LIBFORMAT_EXPORT // Using static or shared. +#endif diff --git a/format/format b/format/format index 6c4d5f8..69350b0 100644 --- a/format/format +++ b/format/format @@ -4,5 +4,7 @@ #include <string> -std::string +#include <format/export> + +LIBFORMAT_EXPORT std::string format (const std::string& greeting, const std::string& name); |