add bzip2

ports/bzip2/CMakeLists.txt

@@ -0,0 +1,36 @@
+cmake_minimum_required(VERSION 3.0)
+project(bzip2)
+
+if(CMAKE_BUILD_TYPE STREQUAL Debug)
+    add_definitions(-DBZ_DEBUG) # enable extra assertions
+endif()
+
+set(LIBBZ2_SOURCES
+    blocksort.c
+    huffman.c
+    crctable.c
+    randtable.c
+    compress.c
+    decompress.c
+    bzlib.c)
+
+add_library(libbz2 ${LIBBZ2_SOURCES})
+set_target_properties(libbz2 PROPERTIES ARCHIVE_OUTPUT_NAME bz2) # reqiured for FindBzip2 to work
+if(BUILD_SHARED_LIBS)
+    target_compile_definitions(libbz2 PRIVATE -DBZ_BUILD_DLL)
+endif()
+
+install(TARGETS libbz2
+    RUNTIME DESTINATION bin
+    ARCHIVE DESTINATION lib
+    LIBRARY DESTINATION lib)
+
+if(NOT BZIP2_SKIP_TOOLS)
+    add_executable(bzip2 bzip2.c ${LIBBZ2_SOURCES})
+    add_executable(bzip2recover bzip2recover.c ${LIBBZ2_SOURCES})
+    install(TARGETS bzip2 bzip2recover DESTINATION tools)
+endif()
+
+if(NOT BZIP2_SKIP_HEADERS)
+    install(FILES bzlib.h DESTINATION include)
+endif()

ports/bzip2/CONTROL

@@ -0,0 +1,3 @@
+Source: bzip2
+Version: 1.0.6
+Description: High-quality data compressor.

ports/bzip2/auto-define-import-macro.patch

@@ -0,0 +1,13 @@
+diff --git a/bzlib.h b/bzlib.h
+index e3ba1d6..d3bed44 100644
+--- a/bzlib.h
++++ b/bzlib.h
+@@ -26,6 +26,8 @@
+ extern "C" {
+ #endif
+ 
++#define BZ_IMPORT
++
+ #define BZ_RUN               0
+ #define BZ_FLUSH             1
+ #define BZ_FINISH            2

ports/bzip2/fix-import-export-macros.patch

@@ -0,0 +1,40 @@
+diff --git a/bzlib.h b/bzlib.h
+index 8277123..84fbd0a 100644
+--- a/bzlib.h
++++ b/bzlib.h
+@@ -65,29 +65,23 @@ typedef
+    } 
+    bz_stream;
+ 
+-
+-#ifndef BZ_IMPORT
+-#define BZ_EXPORT
+-#endif
+-
+ #ifndef BZ_NO_STDIO
+ /* Need a definitition for FILE */
+ #include <stdio.h>
+ #endif
+ 
+ #ifdef _WIN32
+-#   include <windows.h>
+ #   ifdef small
+       /* windows.h define small to char */
+ #      undef small
+ #   endif
+-#   ifdef BZ_EXPORT
+-#   define BZ_API(func) WINAPI func
+-#   define BZ_EXTERN extern
++#   define BZ_API(func) func
++#   if defined(BZ_BUILD_DLL)
++#      define BZ_EXTERN __declspec(dllexport)
++#   elif defined(BZ_IMPORT)
++#      define BZ_EXTERN __declspec(dllimport)
+ #   else
+-   /* import windows dll dynamically */
+-#   define BZ_API(func) (WINAPI * func)
+-#   define BZ_EXTERN
++#      define BZ_EXTERN
+ #   endif
+ #else
+ #   define BZ_API(func) func

ports/bzip2/portfile.cmake

@@ -0,0 +1,35 @@
+
+include(vcpkg_common_functions)
+set(SOURCE_PATH ${CURRENT_BUILDTREES_DIR}/src/bzip2-1.0.6)
+vcpkg_download_distfile(ARCHIVE
+    URLS "http://www.bzip.org/1.0.6/bzip2-1.0.6.tar.gz"
+    FILENAME "bzip2-1.0.6.tar.gz"
+    SHA512 00ace5438cfa0c577e5f578d8a808613187eff5217c35164ffe044fbafdfec9e98f4192c02a7d67e01e5a5ccced630583ad1003c37697219b0f147343a3fdd12)
+    
+vcpkg_extract_source_archive(${ARCHIVE})
+
+file(COPY ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt DESTINATION ${SOURCE_PATH})
+
+vcpkg_apply_patches(
+    SOURCE_PATH ${SOURCE_PATH}
+    PATCHES
+        ${CMAKE_CURRENT_LIST_DIR}/fix-import-export-macros.patch)
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    OPTIONS_DEBUG
+        -DBZIP2_SKIP_HEADERS=ON
+        -DBZIP2_SKIP_TOOLS=ON)
+
+vcpkg_install_cmake()
+vcpkg_copy_pdbs()
+
+if(VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
+    vcpkg_apply_patches(
+    SOURCE_PATH ${CURRENT_PACKAGES_DIR}/include
+    PATCHES
+        ${CMAKE_CURRENT_LIST_DIR}/auto-define-import-macro.patch)
+endif()
+
+file(COPY ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/bzip2)
+file(RENAME ${CURRENT_PACKAGES_DIR}/share/bzip2/LICENSE ${CURRENT_PACKAGES_DIR}/share/bzip2/copyright)