Mesa (master): d3d12: Only play DLL path tricks on Windows

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Module: Mesa
Branch: master
Commit: ed286325a0ecbf5fceeb9c8f5d5fc677154fad00
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ed286325a0ecbf5fceeb9c8f5d5fc677154fad00

Author: Jesse Natalie <jenatali at microsoft.com>
Date:   Wed Dec  9 17:10:45 2020 -0800

d3d12: Only play DLL path tricks on Windows

Reviewed-by: Erik Faye-Lund <erik.faye-lund at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7937>

---

 src/gallium/drivers/d3d12/d3d12_compiler.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/drivers/d3d12/d3d12_compiler.cpp b/src/gallium/drivers/d3d12/d3d12_compiler.cpp
index 996ea2b45df..f42ab1ecd68 100644
--- a/src/gallium/drivers/d3d12/d3d12_compiler.cpp
+++ b/src/gallium/drivers/d3d12/d3d12_compiler.cpp
@@ -1137,12 +1137,15 @@ d3d12_shader_free(struct d3d12_shader_selector *sel)
    ralloc_free(sel);
 }
 
+#ifdef _WIN32
 // Used to get path to self
 extern "C" extern IMAGE_DOS_HEADER __ImageBase;
+#endif
 
 void d3d12_validation_tools::load_dxil_dll()
 {
    if (!dxil_module.load(UTIL_DL_PREFIX "dxil" UTIL_DL_EXT)) {
+#ifdef _WIN32
       char selfPath[MAX_PATH] = "";
       uint32_t pathSize = GetModuleFileNameA((HINSTANCE)&__ImageBase, selfPath, sizeof(selfPath));
       if (pathSize == 0 || pathSize == sizeof(selfPath)) {
@@ -1163,6 +1166,7 @@ void d3d12_validation_tools::load_dxil_dll()
       }
 
       dxil_module.load(selfPath);
+#endif
    }
 }