Hash :
1093e2de
Author :
Date :
2012-05-11T04:25:23
Specifiy dllimport to MSVC if we're not building libgit2.dll
Building a "shared object" (DLL) in Windows includes 2 steps:
- specify __declspec(dllexport)
when building the library itself. MSVC will disallow itself from
optimizing these symbols out and reference them in the PE's
Exports-Table.
Further, a static link library will be generated. This library
contains the symbols which are exported via the declsepc above.
The __declspec(dllexport) becomes part of the symbol-signature
(like parameter types in C++ are 'mangled' into the symbol name,
the export specifier is mingled with the name)
- specify __declspec(dllimport)
when using the library. This again mingles the declspec into the
name and declares the function / variable with external linkage.
cmake automatically adds -Dgit2_EXPORTS to the compiler arguments
when compiling the libgit2 project.
The 'git2' is the name specified via PROJECT() in CMakeLists.txt.