How to build libportable source code?

• C compiler
  Microsoft Visual Studio .

• or

• gcc, msys/msys2
  gcc for windows:
  https://sourceforge.net/projects/libportable/files/Tools/gcc-win64-10.1.1.7z
  msys msys2 project on:
  https://sourceforge.net/projects/mingw/files/MSYS
  https://sourceforge.net/projects/msys2/

Build!

• vc14 or above (cmd shell)

  nmake -f Makefile.msvc clean
  nmake -f Makefile.msvc

  link against minimal msvcrt.dll:
  nmake -f Makefile.msvc MSVC_CRT=1

• gcc/mingw64 compiler (msys shell)

  make clean
  make

  enable GCC Link-time optimization(LTO):
  make LTO=1

  If gcc is a cross-compiler, use the CROSS_COMPILING option:

  make clean
  64bits:
  make CROSS_COMPILING=x86_64-w64-mingw32-
  32bits:
  make CROSS_COMPILING=x86_64-w64-mingw32- BITS=32

• clang compiler,If you have MSVC compiler installed
  (cmd shell):

  nmake -f Makefile.msvc CC=clang-cl clean
  nmake -f Makefile.msvc CC=clang-cl

  (msys shell):

  make clean
  make CC=clang DFLAGS=--target=x86_64-w64-windows-gnu // (64bits target build)
  make CC=clang DFLAGS=--target=i686-w64-windows-gnu // (32bits target build)

  make clean
  make CC=clang DFLAGS=--target=i686-pc-windows-msvc
  make CC=clang DFLAGS=--target=x86_64-pc-windows-msvc

Add libportable into Firefox?

Binary static injection,example:

setdll32 /d:portable32.dll mozglue.dll       // 32 bits firefox    
setdll64 /d:portable64.dll mozglue.dll       // 64 bits firefox    

Compiled from firefox's source code,patches example:

diff --git a/toolkit/library/nsDllMain.cpp b/toolkit/library/nsDllMain.cpp
--- a/toolkit/library/nsDllMain.cpp
+++ b/toolkit/library/nsDllMain.cpp
@@ -8,6 +8,16 @@
 #include "mozilla/Assertions.h"
 #include "mozilla/WindowsVersion.h"
 
+#if defined(_MSC_VER) && defined(TT_MEMUTIL)
+#if defined(_M_IX86)
+#pragma comment(lib,"portable32.lib")
+#pragma comment(linker, "/include:_GetCpuFeature_tt")
+#elif defined(_M_AMD64) || defined(_M_X64)
+#pragma comment(lib,"portable64.lib")
+#pragma comment(linker, "/include:GetCpuFeature_tt")
+#endif
+#endif /* _MSC_VER && TT_MEMUTIL */
+
 #if defined(__GNUC__)
 // If DllMain gets name mangled, it won't be seen.
 extern "C" {