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build-icu-with-icc.md

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Build ICU with ICC

IMPORTANT Notes

Shared library

  1. Download ICU source code package and extract it to anywhere you like.
  2. Open "<path_to_icu_source_code_directory>\source\allinone\allinone.sln" with Visual Studio.
  3. Switch to Intel C++ Compiler.
  4. Replace "/utf-8" with "-Qoption,cpp,--unicode_source_kind,"UTF-8"" in [Property->C/C++->Command line] (if there is no "/utf-8", it's OK, just add the latter one).
  5. Build the solution.

Static library

  1. Download ICU source code package and extract it to anywhere you like.
  2. Open "<path_to_icu_source_code_directory>\source\runConfigureICU", replace all "cl" with "icl", "-MD" with "-MT".
  3. Open "<path_to_icu_source_code_directory>\source\config\mh-msys-msvc" and do the following changes:
    • find "ifeq ($(ENABLE_RELEASE),1)", add "CFLAGS+=-O2 -DU_RELEASE=1#M#" below it and change "CPPFLAGS+=-DU_RELEASE=1#M#" to "CPPFLAGS+=-O2 -DU_RELEASE=1#M#".
    • find "ifeq ($(ENABLE_DEBUG),1)", add "CFLAGS+=-Od -D_DEBUG=1#M#" below it and change "CPPFLAGS+=-D_DEBUG=1#M#" to "CPPFLAGS+=-Od -D_DEBUG=1#M#".
    • find "CFLAGS+=-GF -nologo -utf-8" and change it to "CFLAGS+=-GF -nologo -Zc:wchar_t -Qprec -Zm200 -Qoption,cpp,--unicode_source_kind,"UTF-8" -W3 -Qdiag-disable:673,809,1738,1744,3373".
    • find "CXXFLAGS+=-GF -nologo -EHsc -Zc:wchar_t -utf-8" and change it to "CXXFLAGS+=-GF -nologo -EHsc -Zc:wchar_t -Qprec -Zm200 -Zc:forScope -Qstd=c++11 -Qoption,cpp,--unicode_source_kind,"UTF-8" -W3 -Qdiag-disable:673,809,1738,1744,3373".
    • replace all "LINK.EXE" with "xilink", "LIB.EXE" with "xilib".
  4. Open cmd shell, execute the following commands: 
    rem the following paths may be different from your's, just for example
call "C:\Program Files (x86)\IntelSWTools\compilers_and_libraries\windows\bin\ipsxe-comp-vars.bat" ia32 vs2017
rem to build 64-bit icu: call "C:\Program Files (x86)\IntelSWTools\compilers_and_libraries\windows\bin\ipsxe-comp-vars.bat" intel64 vs2017
call "C:\msys64\msys2_shell.cmd" -mingw32 -use-full-path
rem to build 64-bit icu: call "C:\msys64\msys2_shell.cmd" -mingw64 -use-full-path
    Then execute the following commands: 
    cd <path_to_icu_source_code_directory>/source
./runConfigureICU MSYS/MSVC --enable-static --disable-shared --prefix=$PWD/../../icu4c-x86-static-icc
make -j4 && make install