Fix SDL2 .pc files for qemu-android build.

This patch corresponds to the changes in build-qemu-android-deps.sh
described here:

  https://android-review.googlesource.com/#/c/153350/

There is no point to update the rest of the binary files, so the
change has been limited to the sdl2.pc files after re-running the
script.

Change-Id: Ia3e3461aebeb878cb839245bd5a8f12e91e3ad4c

linux-x86/lib/pkgconfig/sdl2.pc

diff --git a/linux-x86/lib/pkgconfig/sdl2.pc b/linux-x86/lib/pkgconfig/sdl2.pc
index 27de147..481cb9c 100644
--- a/linux-x86/lib/pkgconfig/sdl2.pc
+++ b/linux-x86/lib/pkgconfig/sdl2.pc
@@ -1,6 +1,6 @@
 # sdl pkg-config source file
 
-prefix=/tmp/digit-build-temp-464/install-linux-x86
+prefix=/tmp/digit-build-temp-13090/install-linux-x86
 exec_prefix=${prefix}
 libdir=${exec_prefix}/lib
 includedir=${prefix}/include
@@ -10,6 +10,6 @@
 Version: 2.0.3
 Requires:
 Conflicts:
-Libs: -L${libdir} -Wl,-rpath,${libdir} -lSDL2  -lpthread
+Libs: -L${libdir} -Wl,-rpath,${libdir} -lSDL2  -lpthread -Wl,--no-undefined -lm -ldl -lrt
 Libs.private: -lSDL2  -lpthread  -Wl,--no-undefined -lm -ldl -lpthread -lrt
 Cflags: -I${includedir}/SDL2   -D_REENTRANT

linux-x86_64/lib/pkgconfig/sdl2.pc

diff --git a/linux-x86_64/lib/pkgconfig/sdl2.pc b/linux-x86_64/lib/pkgconfig/sdl2.pc
index 2a6b379..f5377fa 100644
--- a/linux-x86_64/lib/pkgconfig/sdl2.pc
+++ b/linux-x86_64/lib/pkgconfig/sdl2.pc
@@ -1,6 +1,6 @@
 # sdl pkg-config source file
 
-prefix=/tmp/digit-build-temp-464/install-linux-x86_64
+prefix=/tmp/digit-build-temp-13090/install-linux-x86_64
 exec_prefix=${prefix}
 libdir=${exec_prefix}/lib
 includedir=${prefix}/include
@@ -10,6 +10,6 @@
 Version: 2.0.3
 Requires:
 Conflicts:
-Libs: -L${libdir} -Wl,-rpath,${libdir} -lSDL2  -lpthread
+Libs: -L${libdir} -Wl,-rpath,${libdir} -lSDL2  -lpthread -Wl,--no-undefined -lm -ldl -lrt
 Libs.private: -lSDL2  -lpthread  -Wl,--no-undefined -lm -ldl -lpthread -lrt
 Cflags: -I${includedir}/SDL2   -D_REENTRANT

windows-x86/lib/pkgconfig/sdl2.pc

diff --git a/windows-x86/lib/pkgconfig/sdl2.pc b/windows-x86/lib/pkgconfig/sdl2.pc
index 666a357..ce55a53 100644
--- a/windows-x86/lib/pkgconfig/sdl2.pc
+++ b/windows-x86/lib/pkgconfig/sdl2.pc
@@ -1,6 +1,6 @@
 # sdl pkg-config source file
 
-prefix=/tmp/digit-build-temp-464/install-windows-x86
+prefix=/tmp/digit-build-temp-13090/install-windows-x86
 exec_prefix=${prefix}
 libdir=${exec_prefix}/lib
 includedir=${prefix}/include
@@ -10,6 +10,6 @@
 Version: 2.0.3
 Requires:
 Conflicts:
-Libs: -L${libdir}  -lmingw32 -lSDL2main -lSDL2  -mwindows
+Libs: -L${libdir}  -lmingw32 -lSDL2main -lSDL2  -mwindows -Wl,--no-undefined -lm -ldinput8 -ldxguid -ldxerr8 -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -static-libgcc
 Libs.private: -lmingw32 -lSDL2main -lSDL2  -mwindows  -Wl,--no-undefined -lm -ldinput8 -ldxguid -ldxerr8 -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -XCClinker -static-libgcc
 Cflags: -I${includedir}/SDL2  -Dmain=SDL_main

windows-x86_64/lib/pkgconfig/sdl2.pc

diff --git a/windows-x86_64/lib/pkgconfig/sdl2.pc b/windows-x86_64/lib/pkgconfig/sdl2.pc
index 34c7c54..26652f0 100644
--- a/windows-x86_64/lib/pkgconfig/sdl2.pc
+++ b/windows-x86_64/lib/pkgconfig/sdl2.pc
@@ -1,6 +1,6 @@
 # sdl pkg-config source file
 
-prefix=/tmp/digit-build-temp-464/install-windows-x86_64
+prefix=/tmp/digit-build-temp-13090/install-windows-x86_64
 exec_prefix=${prefix}
 libdir=${exec_prefix}/lib
 includedir=${prefix}/include
@@ -10,6 +10,6 @@
 Version: 2.0.3
 Requires:
 Conflicts:
-Libs: -L${libdir}  -lmingw32 -lSDL2main -lSDL2  -mwindows
+Libs: -L${libdir}  -lmingw32 -lSDL2main -lSDL2  -mwindows -Wl,--no-undefined -lm -ldinput8 -ldxguid -ldxerr8 -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -static-libgcc
 Libs.private: -lmingw32 -lSDL2main -lSDL2  -mwindows  -Wl,--no-undefined -lm -ldinput8 -ldxguid -ldxerr8 -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -XCClinker -static-libgcc
 Cflags: -I${includedir}/SDL2  -Dmain=SDL_main