Webview build can't find `SDL_setenv`.

[dbrnz]

I'm attempting to build the Python3 webview test app from the master branch using NDK 19 and an arm64-v8a target. However linking libmain.so fails with undefined reference to 'SDL_setenv'.

I see start.c references SDL_setenv in Java_org_kivy_android_PythonActivity_nativeSetenv() which is compiled because BOOTSTRAP_NAME_WEBVIEW is defined. Is it intended to call SDL_setenv given that SDL.h has not been included (since a webview build defines BOOTSTRAP_USES_NO_SDL_HEADERS)??

[AndreMiras]

Thanks for the report, you can now try on p4a master since @j-devel fixed the regression recently

[dbrnz]

Thanks!