1  /* A dummy file, to prevent empty libraries from breaking builds.
       2     Copyright (C) 2004, 2007, 2009-2023 Free Software Foundation, Inc.
       3  
       4     This file is in the public domain.  */
       5  
       6  /* Some systems, reportedly OpenBSD and Mac OS X, refuse to create
       7     libraries without any object files.  You might get an error like:
       8  
       9     > ar cru .libs/libgl.a
      10     > ar: no archive members specified
      11  
      12     Compiling this file, and adding its object file to the library, will
      13     prevent the library from being empty.  */
      14  
      15  /* Some systems, such as Solaris with cc 5.0, refuse to work with libraries
      16     that don't export any symbol.  You might get an error like:
      17  
      18     > cc ... libgnu.a
      19     > ild: (bad file) garbled symbol table in archive ../gllib/libgnu.a
      20  
      21     Compiling this file, and adding its object file to the library, will
      22     prevent the library from exporting no symbols.  */
      23  
      24  #ifdef __sun
      25  /* This declaration ensures that the library will export at least 1 symbol.  */
      26  int gl_dummy_symbol;
      27  #else
      28  /* This declaration is solely to ensure that after preprocessing
      29     this file is never empty.  */
      30  typedef int dummy;
      31  #endif