| PNG image support | zlib | ON | -DEXIV2\_ENABLE\_PNG=OFF | [http://zlib.net/](http://zlib.net/) |
| XMP support | expat | ON | -DEXIV2\_ENABLE\_XMP=OFF | [http://expat.sourceforge.net](http://expat.sourceforge.net)/<br/>Use _**Expat 2.2.6**_ and later |
| Natural language system | gettext | OFF | -DEXIV2\_ENABLE\_NLS=ON | [http://www.gnu.org/software/gettext/](http://www.gnu.org/software/gettext/) |
| Character set conversion | libiconv | | Disabled for Visual Studio.<br>Linked when installed on UNIX like platforms. | [https://www.gnu.org/software/libiconv/](https://www.gnu.org/software/libiconv/) |
| PNG image support | zlib | ON | -DEXIV2\_ENABLE\_PNG=OFF | [http://zlib.net/](http://zlib.net/) |
| XMP support | expat | ON | -DEXIV2\_ENABLE\_XMP=OFF | [http://expat.sourceforge.net](http://expat.sourceforge.net)/<br/>Use _**Expat 2.2.6**_ and later |
| Natural language system | gettext | OFF | -DEXIV2\_ENABLE\_NLS=ON | [http://www.gnu.org/software/gettext/](http://www.gnu.org/software/gettext/) |
| Character set conversion | libiconv | | Disabled for Visual Studio.<br>Linked when installed on UNIX like platforms. | [https://www.gnu.org/software/libiconv/](https://www.gnu.org/software/libiconv/) |
| JPEG XL brob support | brotli | | Linked when installed and -DEXIV2\_ENABLE\_BMFF=ON | [https://github.com/google/brotli](https://github.com/google/brotli) |
On UNIX systems, you may install the dependencies using the distribution's package management system. Install the
development package of a dependency to install the header files and libraries required to build Exiv2. The script
@ -1214,7 +1216,7 @@ Update your system and install the build tools and dependencies (zlib, expat, gt
For users of other platforms, the script <exiv2dir>/ci/install_dependencies.sh has code used to configure many platforms. The code in that file is a useful guide to configuring your platform.
@ -1247,23 +1249,23 @@ I recommend that you build and install CMake from source.
## MinGW/msys2
Please note that the platform MinGW/msys2 32 is obsolete and superceded by MinGW/msys2 64. It is important to highlight that we rely on using the Universal C Runtime (UCRT) and its relatively new support for UTF-8. Check this [PR](https://github.com/Exiv2/exiv2/pull/2090) for more information. Therefore you will need to use the [URCT MSYS environment](https://www.msys2.org/docs/environments/).
Please note that the 32bit MinGW platform is obsolete and superceded by the 64bit MSYS2 distribution. It is important to highlight that we rely on using the Universal C Runtime (UCRT) and its relatively new support for UTF-8. Check this [PR](https://github.com/Exiv2/exiv2/pull/2090) for more information. Therefore you will need to use the [MSYS2 URCT64 environment](https://www.msys2.org/docs/environments/).
Install the latest version of [MSYS2](https://repo.msys2.org/distrib/msys2-x86_64-latest.exe), and follow the installation instructions available [here](https://www.msys2.org/).
The CI workflow file `.github/workflows/on_PR_windows_matrix.yml` has a build job named `msys2` with instructions showing how to configure Exiv2 on MinGW/msys2.
The CI workflow file `.github/workflows/on_PR_windows_matrix.yml` has a build job named `msys2` with instructions showing how to configure Exiv2 on MSYS2.
### Install exiv2 Dependencies
Please note that you will need to install the `ucrt` package version of the exiv2 dependencies:
Please note that you will need to install the `ucrt-x86_64` package version of the exiv2 dependencies:
Use the Windows start menu to open the terminal customized for the UCRT environment: `MSYS2 MinGW UCRT x64`. Then run the following commands to download exiv2, configure the project and build it:
Use the Windows start menu to open the terminal customized for the UCRT64 environment: `MSYS2 MinGW UCRT x64`. Then run the following commands to download exiv2, configure the project and build it:
```bash
mkdir -p ~/gnu/github/exiv2
@ -1271,7 +1273,7 @@ cd ~/gnu/github/exiv2
git clone https://github.com/exiv2/exiv2
cd exiv2
mkdir build && cd build
cmake -G "MSYS Makefiles"
cmake -G Ninja
-DCMAKE_CXX_FLAGS=-Wno-deprecated
-DCMAKE_BUILD_TYPE=Release
-DBUILD_SHARED_LIBS=ON
@ -1282,10 +1284,10 @@ cmake -G "MSYS Makefiles"
-DEXIV2_BUILD_UNIT_TESTS=ON
..
cmake --build . --parallel
cmake --build .
```
The binaries generated at this point can be executed from the MSYS2 UCRT terminal, but they will not run from a Windows Command Prompt or PowerShell. The reason is that the MSYS2 UCRT terminal is properly configured to find some needed DLLs. In case you want to be able to run the generated **exiv2** binary from any Windows terminal, you'll need to deploy the needed DLLs with the application.
The binaries generated at this point can be executed from the MSYS2 UCRT64 terminal, but they will not run from a Windows Command Prompt or PowerShell. The reason is that the MSYS2 UCRT64 terminal is properly configured to find some needed DLLs. In case you want to be able to run the generated **exiv2** binary from any Windows terminal, you'll need to deploy the needed DLLs with the application.
Miloš Komarčević
3 years ago