naruse	2018-08-14 04:12:23 +0900 (Tue, 14 Aug 2018)

  New Revision: 64351

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=64351

  Log:
    FreeBSD 11.0 lacks ELFCOMPRESS_ZLIB
    
    FreeBSD 11.0 unfortunately lacks ELF compression definitions in their
    elf.h (sys/elf_common.h), and 11.1 introduced them.
    https://github.com/freebsd/freebsd/commit/b9167d33a12b8a6c279be9cd1005874728e808c9
    
    Though we can add workaround, we simply drop support because
    FreeBSD 11.0 is already EOL at November 30, 2017.
    https://www.freebsd.org/security/unsupported.html

  Modified files:
    trunk/addr2line.c
Index: addr2line.c
===================================================================
--- addr2line.c	(revision 64350)
+++ addr2line.c	(revision 64351)
@@ -102,7 +102,8 @@ void *alloca(); https://github.com/ruby/ruby/blob/trunk/addr2line.c#L102
 #endif
 
 #ifdef SHF_COMPRESSED
-# ifdef HAVE_LIBZ
+# if defined(ELFCOMPRESS_ZLIB) && defined(HAVE_LIBZ)
+   /* FreeBSD 11.0 lacks ELFCOMPRESS_ZLIB */
 #  include <zlib.h>
 #  define SUPPORT_COMPRESSED_DEBUG_LINE
 # endif

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