From: Piotr Sikora <piotrsikora@google.com>
Date: Mon, 22 Aug 2022 00:41:54 +0000 (-0700)
Subject: Add support for compiling to WebAssembly using Emscripten.
X-Git-Tag: 2.1.0-beta1~135
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=60ed1ab3e77531595c606d71cc35237af556fced;p=thirdparty%2Fzlib-ng.git

Add support for compiling to WebAssembly using Emscripten.

Co-authored-by: Nathan Moinvaziri <nathan@nathanm.com>
---

diff --git a/cmake/detect-arch.c b/cmake/detect-arch.c
index 43ddb126a..ff1a05a25 100644
--- a/cmake/detect-arch.c
+++ b/cmake/detect-arch.c
@@ -101,6 +101,10 @@
         #error archfound riscv32
     #endif
 
+// Emscripten (WebAssembly)
+#elif defined(__EMSCRIPTEN__)
+    #error archfound wasm32
+
 // return 'unrecognized' if we do not know what architecture this is
 #else
     #error archfound unrecognized
diff --git a/cmake/detect-arch.cmake b/cmake/detect-arch.cmake
index f0547ba31..6f29c4a10 100644
--- a/cmake/detect-arch.cmake
+++ b/cmake/detect-arch.cmake
@@ -88,6 +88,9 @@ elseif("${ARCH}" MATCHES "rs6000")
 elseif("${ARCH}" MATCHES "riscv(32|64)")
     set(BASEARCH "riscv")
     set(BASEARCH_RISCV_FOUND TRUE)
+elseif("${ARCH}" MATCHES "wasm32")
+    set(BASEARCH "wasm32")
+    set(BASEARCH_WASM32_FOUND TRUE)
 else()
     set(BASEARCH "x86")
     set(BASEARCH_X86_FOUND TRUE)