Compile libexif with Visual Studio
Compile library with Visual Studio is not always easy if those have not been designed for Windows. This is the case for libexif.
Homepage : http://libexif.sourceforge.net/
Version used : 0.6.1
Steps :
- Download and uncompress the source code
- Create a win32 folder in the source tree (the one containing libexif, contrib, po,…)
- Create a Visual Studio project in this folder (select the .lib template)
- Add all files in libexif/ with the subfolders
- Download a copy from config.h written by Anthony Lawrence from https://github.com/alawrence/c_LibExifModule/blob/master/libexif-0.6.20/win32/lib_exif/config.h
- Modify it with your libexif version, and with the other changes you may want
- Be carefull to exclude from include and lib paths any existing libexif installation
- Add ‘.’ and ‘..’ in your include paths (to find config.h and <libexif/*>)
- Modify the file exif-entry.c on the line 1384 (
unsigned short *utf16 = exif_mem_alloc (e→priv→mem, e→size+sizeof(unsigned short));
) and move to the beginning of the scope the declaration of utf16 variable (line 833 :unsigned short *utf16;
) - Add preprocessor definitions :
GETTEXT_PACKAGE=“libexif-12”;LOCALEDIR=
- And lastly, modify options according to that you need ; in my case (for RPhoto) :
- Unicode
- Set to MultiThread (/MT)
- Static Library
It should compile and link well now.
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