# Category zlib History

See `CONTRIBUTING.rst` for details of **required** info/format for each entry,
which **must** added in reverse chronological order (newest at the top).
It must **not** be used as a substitute for writing good git commit messages!

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## 2025-05-02 Ben Morgan (zlib-V11-03-01)
- Import zlib 1.3.1 sources, retaining prior Geant4 patches.

## 2025-04-01 Gabriele Cosmo (zlib-V11-03-00)
- Fix in zutil.h to comment out redundant block on macOS and allow for porting
  on macOS-15.4 and clang-17.0.0.

## 2023-06-15 Ben Morgan (zlib-V11-01-00)
- Import zlib 1.2.13 sources, retaining prior Geant4 patches.

## 2022-10-08 Ben Morgan (zlib-V11-00-04)
- Suppress deprecated-non-prototype warnings for compilers that check this.

## 2022-10-07 Ben Morgan (zlib-V11-00-03)
- Import zlib 1.2.12 sources, retaining prior Geant4 patches.

## 2022-09-22 Ben Morgan (zlib-V11-00-02)
- Apply patch for Zlib from [GitHub PR 43](https://github.com/Geant4/geant4/pull/43)
  - Addresses Valgrind warnings that aren't ignored due to name change of library

## 2022-01-28 Ben Morgan (zlib-V11-00-01)
- Replace `geant4_global_library_target` with direct file inclusion and
  call to `geant4_add_category` to define library build from source modules.
  
## 2021-12-10 Ben Morgan (zlib-V11-00-00)
- Change to new Markdown History format

---

# History entries prior to 11.0

29 June 2021 Ben Morgan (zlib-V10-07-01)
- Remove formatting options from build

23 February 2021 Ben Morgan (zlib-V10-07-00)
- Use separate genexes in G4zlib include directories to prevent parsing issues

29 October 2020 Ben Morgan (zlib-V10-06-01)
- sources.cmake: remove include of obsolete CMake module,
  update for full migration to new CMake system.

28 May 2020 Ben Morgan (zlib-V10-06-00)
- sources.cmake: Add needed include directories to G4zlib
  module when using new cmake system.

21 June 2018 Gunter Folger  (zlib-V10-04-03)
-  gzwrite.c: one more cast to int,

20 June 2018 Gunter Folger  (zlib-V10-04-02)
- fixes in gzread.c/gzwrite.c for Windows 64 bit builds.
    Correctioins taken from https://github.com/madler/zlib/pull/279

14 June 2018 Gunter Folger  (zlib-V10-04-01)
-  move all includes in src/ to include/; This helps keep
     geant4_validate_sources.cmake simpler

12 June 2018 Gunter Folger  (zlib-V10-04-00)
- addressing compilation warnings from gcc8:
   switch back to original source from zlib 1.2.11, and use C compiler.

18 May 2017 Gunter Folger   (zlib-V10-03-01)
- disable warning on fall-through on many case statements issued by gcc7
   add directive -Wno-implicit-fallthrough in CMakeLists.txt, and fix copy-paste typo.

03 February 2017 Ben Morgan (zlib-V10-03-00)
- Set interface include directories on G4zlib{-static} targets
  in CMakeLists.txt. This provides the needed interface to allow transparent
  usage of internal/external zlib via targets and without needing to use
  include_directories explicitly. Only set include paths in BUILD
  interface for consistency with other targets.

19 April 2015 Gunter Folger   (zlib-V10-02-01)
-  fix in gzguts.h for Windows; as of Studio 2015 in 64 bit compilation,
    _snprintf is no longer provided, but snprintf finally is available.

15 January 2015Gunter Folger   (zlib-V10-02-00)
-  fix clang compiler warning in inflate.cc: return explicit value
     of -1L << 16 (0xffffFFFFffff000L)

10 July 2015 Gunter Folger  (zlib-V10-01-01)
-  Add type casts to fix windows compilations errors.

8 July 2015 Gunter Folger   (zlib-V10-01-00)
-  Update to zlib-1.2.8, keeping out structure.
    Compare files to new zlib, and transfer changes, keeping local
	 modifications, like function declarationss, and removed register keyword.
	 Note that test06 now contains the test code.

10 April 2014 Gabriele Cosmo (zlib-V10-00-01)
-  Get rid of deprecated 'register' storage class specifier in source files
   crc32.cc, deflate.cc and trees.cc.

18 March 2014 Gabriele Cosmo (zlib-V10-00-00)
-  Fixed compilation warnings from clang-3.4 for unused variables in
   deflate.cc and inftrees.cc

7 May 2013 Gunter Folger     (zlib-V09-06-03)
-  Fixes for Windows:
   - Add few more explicit typecasts, in #ifdef protected code
   - in inflate.h,.cc an enum used OS, this clashes with a #define, rename OS to
     OS_ZLIB
   - sources.cmake: add -DZLIB_DLL, to export symbols, don't rename debug
     version of G4zlib to G4zlibd.

6 May 2013 Gunter Folger     (zlib-V09-06-02)
-  Adapt full zlib to G4 cmake:
   - copied portions of zlib CMakeLists.tzt to sources.cmake,
     using standard G4 CMakeLists.txt
   - Private header are in src, include only has zlib.h. zconf.h is created
     in build tree from src/zconf.h.cmakein; zlib.h and zconf.h are installed.

27 March 2013 Gunter Folger  (zlib-V09-06-01)
-  Update to zlib  1.2.7
   - include complete zlib, not only writer.

20 March 2013 Gabriele Cosmo (zlib-V09-06-00)
-  Moved from visualization/externals module

25 May 2005 Mark Donszelmann
-  zlib version 1.2.2
