Build wheels against libsrtp v2.6.0

The build now needs to be performed outside of the source directory.

Author: jlaine

scripts/build-libsrtp.bat

@@ -1,31 +1,37 @@
-set destdir=%1
+set dest_dir=%1
+set build_dir=libsrtp.build
+set source_dir=libsrtp.source
 
-python scripts\fetch-vendor.py %destdir%
+python scripts\fetch-vendor.py %dest_dir%
 
 for %%d in (libsrtp) do (
     if exist %%d (
         rmdir /s /q %%d
     )
 )
 
-git clone https://github.com/cisco/libsrtp/
-cd libsrtp
-git checkout -qf v2.5.0
+git clone https://github.com/cisco/libsrtp/ %source_dir%
+cd %source_dir%
+git checkout -qf v2.6.0
+cd ..
 
 if "%PYTHON_ARCH%" == "64" (
     set CMAKE_OPTIONS=-A x64
 ) else (
     set CMAKE_OPTIONS=-A Win32
 )
-cmake . -G "Visual Studio 17 2022" %CMAKE_OPTIONS% -DENABLE_OPENSSL=ON
+mkdir %build_dir%
+cd %build_dir%
+cmake ..\%source_dir% -G "Visual Studio 17 2022" %CMAKE_OPTIONS% -DENABLE_OPENSSL=ON
 cmake --build . --config Release
+cd ..
 
-mkdir %destdir%
-mkdir %destdir%\include
-mkdir %destdir%\include\srtp2
-mkdir %destdir%\lib
+mkdir %dest_dir%
+mkdir %dest_dir%\include
+mkdir %dest_dir%\include\srtp2
+mkdir %dest_dir%\lib
 
 for %%d in (include\srtp.h crypto\include\auth.h crypto\include\cipher.h crypto\include\crypto_types.h) do (
-	 copy %%d %destdir%\include\srtp2
+	 copy %source_dir%\%%d %dest_dir%\include\srtp2
 )
-copy Release\srtp2.lib %destdir%\lib\srtp2.lib
+copy %build_dir%\Release\srtp2.lib %dest_dir%\lib\srtp2.lib

scripts/build-libsrtp.py

@@ -9,9 +9,10 @@
     sys.exit(1)
 
 dest_dir = sys.argv[1]
-build_dir = os.path.abspath("build")
+build_dir = os.path.abspath("libsrtp.build")
+source_dir = os.path.abspath("libsrtp.source")
 
-for d in [build_dir]:
+for d in [build_dir, source_dir]:
     if os.path.exists(d):
         shutil.rmtree(d)
 
@@ -33,10 +34,12 @@ def run(cmd):
 
 run(["python", "scripts/fetch-vendor.py", dest_dir])
 
-run(["git", "clone", "https://github.com/cisco/libsrtp/", build_dir])
-os.chdir(build_dir)
-run(["git", "checkout", "-qf", "v2.5.0"])
+run(["git", "clone", "https://github.com/cisco/libsrtp/", source_dir])
+os.chdir(source_dir)
+run(["git", "checkout", "-qf", "v2.6.0"])
 
-run(["cmake", "."] + cmake_args)
+os.mkdir(build_dir)
+os.chdir(build_dir)
+run(["cmake", source_dir] + cmake_args)
 run(["make"])
 run(["make", "install"])