Change Details

> Fixes a bug introduced in #19614 (D10060) > > The LevelDB-specific fdatasync check was only using AC_SUBST, which works for Makefiles, but doesn't define anything for C++. Furthermore, the #define is typically 0 or 1, never undefined. > > This fixes both issues by defining it and checking its value instead of whether it is merely defined. This is a backport of core#19803

> Fixes a bug introduced in #19614 (D10060) > > The LevelDB-specific fdatasync check was only using AC_SUBST, which works for Makefiles, but doesn't define anything for C++. Furthermore, the #define is typically 0 or 1, never undefined. > > This fixes both issues by defining it and checking its value instead of whether it is merely defined. This is a backport of [[https://github.com/bitcoin/bitcoin/pull/19803 | core#19803]]

> Fixes a bug introduced in #19614 (D10060) > > The LevelDB-specific fdatasync check was only using AC_SUBST, which works for Makefiles, but doesn't define anything for C++. Furthermore, the #define is typically 0 or 1, never undefined. > > This fixes both issues by defining it and checking its value instead of whether it is merely defined. This is a backport of [[https://github.com/bitcoin/bitcoin/pull/19803 | core#19803]]