Common Setup ============ To be able to build qpdf and run its test suite, you must have either Cygwin or MSYS from MinGW (>= 1.0.11) installed. If you want to build with Microsoft Visual C++, either Cygwin or MSYS will do. If you want to build with MinGW, you must use MSYS rather than Cygwin. As of this writing, the image comparison tests confuse ghostscript in cygwin, but there's a chance they might work at some point. If you want to run them, you need ghostscript and tiff utils as well. Then omit --disable-test-compare-images from the configure statements given below. The image comparison tests have not been tried under MSYS. External Libraries ================== In order to build qpdf, you must have copies of zlib and pcre. The easy way to get them is to download them from the qpdf download area. There are packages called external-libs-bin.zip and external-libs-src.zip. If you are building with MSVC 9 (.NET 2008) or MINGW 4.4, you can just extract the external-libs-bin.zip zip file into the top-level qpdf source tree. It will create a directory called external-libs which contains header files and precompiled libraries. Passing --enable-external-libs to ./configure (which is done automatically if you follow the instructions below) is sufficient to find them. You can also obtain pcre and zlib directly on your own and install them. If you are using mingw, you can just set CPPFLAGS, LDFLAGS, and LIBS when you run ./configure so that it can find the header files and libraries. If you are building with msvc and you want to do this, it probably won't work because ./configure doesn't know how to interpret LDFLAGS and LIBS properly for MSVC (though qpdf's own build system does). In this case, you can probably get away with cheating by passing --enable-external-libs to ./configure and then just editing CPPFLAGS, LDFLAGS, LIBS in the generated autoconf.mk file. Note that you should use UNIX-like syntax (-I, -L, -l) even though this is not what cl takes on the command line. qpdf's build rules will fix it. Building with MinGW =================== QPDF is known to build and pass its test suite with MSYS-1.0.11 and gcc 4.4.0 with C++ support. If you also have ActiveState Perl in your path and the external-libs distribution described above, you can fully configure, build, and test qpdf in this environment. You will most likely not be able to build qpdf with mingw using cygwin. From your MSYS prompt, run ./config-mingw and then make Note that ./config-mingw just runs ./configure with specific arguments, so you can look at it, make adjustments, and manually run configure instead. Add the absolute path to the libqpdf/build directory to your PATH. Make sure you can run the qpdf command by typing qpdf/build/qpdf and making sure you get a help message rather than an error loading the DLL or no output at all. Run the test suite by typing make check If all goes well, you should get a passing test suite. To create an installation directory, run make install. This will create install-mingw/qpdf-VERSION and populate it. The binary download of qpdf for Windows with mingw is created from this directory. Building with MSVC .NET 2008 Express ==================================== These instructions would likely work with newer version of MSVC or with full version of MSVC. They may also work with .NET 2005. They have only been tested with .NET 2008 Express (VC9.0). You may follow these instructions from either Cygwin or from MSYS, though only MSYS is regularly tested. You should first set up your environment to be able to run MSVC from the command line. There is usually a batch file included with MSVC that does this. From that cmd prompt, you can start your cygwin shell. Configure as follows: ./config-msvc and then make Note that ./config-msvc just runs ./configure with specific arguments, so you can look at it, make adjustments, and manually run configure instead. NOTE: automated dependencies are not generated with the msvc build. If you're planning on making modifications, you should probably work with mingw. If there is a need, I can add dependency information to the msvc build, but since I only use it for generating release versions, I haven't bothered. Once built, add the full path to the libqpdf/build directory to your path and run make check to run the test suite. If you are building with MSVC and want to debug a crash in MSVC's debugger, first start an instance of Visual C++. Then run qpdf. When the abort/retry/ignore dialog pops up, first attach the process from within visual C++, and then click Retry in qpdf. A release version of qpdf is built by default. If you want to link against debugging libraries, you will have to change /MD to /MDd in make/msvc.mk. Note that you must redistribute the Microsoft runtime DLLs. Linking with static runtime (/MT) won't work; see "Static Runtime" below for details. Runtime DLLs ============ Both build methods create executables and DLLs that are dependent on the compiler's runtime DLLs. When you run make install, the installation process will automatically detect the DLLs and copy them into the installation bin directory. Look at the copy_dlls script for details on how this is accomplished. Redistribution of the runtime DLL is unavoidable as of this writing; see "Static Runtime" below for details. Static Runtime ============== Building the DLL and executables with static runtime does not work with either Visual C++ .NET 2008 (a.k.a. vc9) using /MT or with mingw (at least as of 4.4.0) using -static-libgcc. The reason is that, in both cases, there is static data involved with exception handling, and when the runtime is linked in statically, exceptions cannot be thrown across the DLL to EXE boundary. Since qpdf uses exception handling extensively for error handling, we have no choice but to redistribute the C++ runtime DLLs. Maybe this will be addressed in a future version of the compilers.