Trying to enable large files on MacOS and Windows

BrunoLevy · Feb 9, 2025 · 3e32b5e · 3e32b5e
1 parent 0082e87
commit 3e32b5e
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diff --git a/src/lib/geogram/basic/geofile.cpp b/src/lib/geogram/basic/geofile.cpp
@@ -101,7 +101,7 @@ namespace {
     /** \brief Maximum length of a gzlib gzread() or gzwrite() */
     static constexpr GEO::Numeric::uint32 MAX_GZ_IO_SIZE = 1024*1024*1024;
 
-#ifdef GEO_OS_LINUX
+#ifdef Z_LARGE64
 
     /**
      * \brief Wrapper around gzread() to read more than 4Gb

diff --git a/src/lib/geogram/third_party/zlib/zconf.h b/src/lib/geogram/third_party/zlib/zconf.h
@@ -8,6 +8,14 @@
 #ifndef ZCONF_H
 #define ZCONF_H
 
+/* [Bruno] enable 64 bits IO on MacOS and Windows */
+#if defined(__APPLE__) || defined(_WIN32) || defined(_WIN64)
+#define _LARGEFILE64_SOURCE
+#define _LFS64_LARGEFILE
+#define _FILE_OFFSET_BITS 64
+#endif
+
+
 /*
  * If you *really* need a unique prefix for all types and library functions,
  * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.