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4d-plugin-opc

A plugin to read and write DOCX, XLSX, PPTX files in 4D.

Implementation of libopc by Florian Reuter.

Please consult the wiki.

Remarks for Apple Silicon

  • apply chmod +x configure to all 3 configure files.
  • change to xmlValidateNCName for error
../../../third_party/libxml2-2.7.7/debugXML.c:257:13: error: implicit declaration of function 'xmlValidateName' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
  • #define LIBXML_THREAD_ENABLED 1 for error
../../../third_party/libxml2-2.7.7/threads.c:664:33: error: use of undeclared identifier 'xmlOnceInit'
    pthread_once(&once_control, xmlOnceInit);
  • specify --arch and --toolchain
./configure --arch=arm64 --toolchain="clang"

Remarks

Modify file.c to accept Unicode file paths on Windows.

Modify plib.h

#if _MSC_VER < 1900 
#define snprintf _snprintf
#endif

Supply iconv.h unistd.h for Windows.