update for linux

.github/workflows/build.yml

@@ -27,7 +27,7 @@ jobs:
             os: ubuntu-latest
             triplet: linux-release
             vcpkg-root: /usr/local/share/vcpkg
-            extra-args: ""
+            extra-args: --overlay-triplets=./triplets
 
           - build: windows
             os: windows-latest

triplets/x64-linux-release.cmake

@@ -0,0 +1,13 @@
+# Overlay of vcpkg's community x64-linux-release triplet. These static
+# libraries get linked into a shared library (SharpEmu's
+# sharpemu_bink2_bridge.c), which the ELF format requires -fPIC for -- the
+# stock triplet doesn't set it, since it assumes linking into a standalone
+# executable instead.
+set(VCPKG_TARGET_ARCHITECTURE x64)
+set(VCPKG_CRT_LINKAGE dynamic)
+set(VCPKG_LIBRARY_LINKAGE static)
+set(VCPKG_CMAKE_SYSTEM_NAME Linux)
+set(VCPKG_BUILD_TYPE release)
+
+set(VCPKG_C_FLAGS "-fPIC")
+set(VCPKG_CXX_FLAGS "-fPIC")