convert build system to cmake

CMakeLists.txt

@@ -0,0 +1,73 @@
+cmake_minimum_required(VERSION 3.0)
+
+project(bzip2)
+
+set(bzip2_lib_SRCS
+    blocksort.c
+    huffman.c
+    crctable.c
+    randtable.c
+    compress.c
+    decompress.c
+    bzlib.c
+)
+
+set(bzip2_scripts
+    bzdiff
+    bzgrep
+    bzmore
+)
+set(bzip2_docs
+    bzip2.txt
+    manual.pdf
+)
+set(bzip2_html
+    manual.html
+)
+
+set(CMAKE_DEBUG_POSTFIX "d")
+if(MSVC)
+  add_definitions(-D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE)
+  set(CMAKE_C_FLAGS_RELEASE             "${CMAKE_C_FLAGS_RELEASE} /GL")
+  set(CMAKE_CXX_FLAGS_RELEASE           "${CMAKE_CXX_FLAGS_RELEASE} /GL")
+  set(CMAKE_EXE_LINKER_FLAGS_RELEASE    "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG")
+  set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} /LTCG")
+  set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /LTCG")
+endif(MSVC)
+
+add_library(bz2 SHARED ${bzip2_lib_SRCS})
+if(WIN32)
+  set_target_properties(bz2 PROPERTIES PREFIX "")
+endif(WIN32)
+
+# bzip2recover
+add_executable(bzip2recover bzip2recover.c)
+target_link_libraries(bzip2recover bz2)
+
+# bzip2
+# disabled bin for wince because of problems with the file system
+
+add_executable(bzip2_bin bzip2.c)
+target_link_libraries(bzip2_bin bz2)
+set_target_properties(bzip2_bin PROPERTIES OUTPUT_NAME bzip2)
+
+
+file(GLOB man1 ${bzip2_SOURCE_DIR}/*.1)
+
+install_targets(/lib bz2)
+install_targets(/bin bzip2recover)
+
+install_targets(/bin bzip2_bin)
+
+if(NOT WIN32)
+  install(PROGRAMS ${bzip2_scripts} DESTINATION bin)
+endif(NOT WIN32)
+install(FILES ${man1}          DESTINATION share/man/man1)
+install(FILES ${bzip2_docs}    DESTINATION doc)
+install(FILES ${bzip2_html}    DESTINATION doc/html)
+install(FILES bzlib.h          DESTINATION include)
+
+# echo EXPORTS > bzip2.def
+# nm bzip2.dll | grep ' T _' | sed 's/.* T _//' >> bzip2.def
+# pexports bzip2.dll > bzip2.def
+# lib /def:bzip2.def /machine:x86