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+## How to recreate the qmake base buildsystem for the 3rd-party stuff
+
+## openssl
+
+### Linux
+
+* `./config no-asm no-idea`
+* `make`
+* `cp crypto/buildinf.h libcrypto-include-unix`
+* `cp include/openssl/opensslconf.h libcrypto-include-unix/openssl`
+
+### Mac OS X
+
+* `./Configure darwin64-x86_64-cc no-asm no-idea`
+* `make depend`
+* `make`
+* `cp crypto/buildinf.h libcrypto-include-osx`
+* `cp include/openssl/opensslconf.h libcrypto-include-osx/openssl`
+
+### Windows
+* `perl Configure VC-WIN32 no-asm no-idea`
+* `ms\do_ms.bat`
+* `nmake -f ms\nt.mak`
+* `copy /Y crypto\buildinf.h libarchive-include-win32`
+* `copy /Y inc32\openssl\*.h libarchive-include-win32\openssl`
+
+
+## xz
+
+### Linux
+* ` ./configure --disable-shared --enable-threads=no --disable-assembler --disable-xz --disable-xzdec
+                --disable-lzmadec --disable-lzmainfo --disable-lzma-links --disable-scripts --disable-doc`
+* `cp config.h config-unix.h`
+* `echo "#include PLATFORM_CONFIG_H" >config.h`
+
+### Mac OS X
+* ` ./configure --disable-shared --enable-threads=no --disable-assembler --disable-xz --disable-xzdec
+                --disable-lzmadec --disable-lzmainfo --disable-lzma-links --disable-scripts --disable-doc`
+* `cp config.h config-osx.h`
+* `echo "#include PLATFORM_CONFIG_H" >config.h`
+
+### Windows
+* `copy /Y windows\config.h config-windows.h`
+* `echo #include PLATFORM_CONFIG_H >config.h`
+
+
+## libarchive
+
+### Linux
+* `./configure --disable-shared --disable-bsdtar --disable-bsdcpio --disable-xattr --disable-acl
+               --without-bz2lib --without-lzmadec --without-lzo2 --without-nettle --without-openssl
+               --without-xml2 --without-expat`
+* `cp config.h config-unix.h`
+* `rm -rf CMakeLists.txt Makefile.* aclocal.m4 config.h.in configure* build/ contrib doc examples cpio libarchive_fe/ tar test_utils libarchive/CMakeLists.txt libarchive/test libarchive/*.5 libarchive/*.3`
+
+### Mac OS X
+* `./configure --disable-shared --disable-bsdtar --disable-bsdcpio --disable-xattr --disable-acl
+               --without-bz2lib --without-lzmadec --without-lzo2 --without-nettle --without-openssl
+               --without-xml2 --without-expat`
+* `cp config.h config-osx.h`
+
+### Windows
+Prerequisite: build zlib 1.2.8
+
+* `mkdir cbuild`
+* `cd cbuild`
+* `cmake -DENABLE_TAR=OFF -DENABLE_CPIO=OFF -DENABLE_XATTR=OFF -DENABLE_ACL=OFF -DENABLE_TEST=OFF
+         -DENABLE_OPENSSL=OFF -DZLIB_LIBRARY=..\..\zlib-1.2.8\release\z.lib -DZLIB_INCLUDE_DIR=..\..\zlib-1.2.8`
+* `copy /Y config.h config-windows.h`
+
+## libyaml
+
+* `rm -rf CMakeLists.txt Makefile.* aclocal.m4 config* doc tests win32 yaml-0.1.pc.in include/Makefile.* src/Makefile.*`