build: drop i686-linux-gnu target

.github/workflows/guix.yml

@@ -32,7 +32,6 @@ jobs:
           - target: "aarch64-linux-gnu"
           - target: "arm-linux-gnueabihf"
           - target: "riscv64-linux-gnu"
-          - target: "i686-linux-gnu"
           - target: "x86_64-w64-mingw32"
           - target: "x86_64-w64-mingw32.installer"
           - target: "x86_64-apple-darwin"

contrib/depends/toolchain.cmake.in

@@ -152,16 +152,6 @@ if(ARCHITECTURE STREQUAL "riscv64")
     set(ARCH "rv64imafdc")
 endif()
 
-if(ARCHITECTURE STREQUAL "i686")
-  SET(ARCH_ID "i386")
-  if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
-    set(BUILD_TAG "linux-x86")
-    SET(LINUX_32 ON)
-  elseif(CMAKE_SYSTEM_NAME STREQUAL "Windows")
-    set(BUILD_TAG "win-x32")
-  endif()
-endif()
-
 if(ARCHITECTURE STREQUAL "x86_64")
   if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
     set(BUILD_TAG "linux-x64")

contrib/guix/guix-build

@@ -79,7 +79,7 @@ mkdir -p "$VERSION_BASE"
 ################
 
 # Default to building for all supported HOSTs (overridable by environment)
-export HOSTS="${HOSTS:-i686-linux-gnu x86_64-linux-gnu aarch64-linux-gnu arm-linux-gnueabihf
+export HOSTS="${HOSTS:-x86_64-linux-gnu aarch64-linux-gnu arm-linux-gnueabihf
                        x86_64-linux-gnu.no-tor-bundle
                        x86_64-linux-gnu.pack
                        riscv64-linux-gnu

contrib/guix/libexec/build.sh

@@ -173,7 +173,6 @@ case "$HOST" in
                 riscv64-linux-gnu)     echo /lib/ld-linux-riscv64-lp64d.so.1 ;;
                 powerpc64-linux-gnu)   echo /lib64/ld64.so.1;;
                 powerpc64le-linux-gnu) echo /lib64/ld64.so.2;;
-                i686-linux-gnu)        echo /lib/ld-linux.so.2 ;;
                 *)                     exit 1 ;;
             esac
         )
@@ -332,9 +331,6 @@ mkdir -p "$DISTSRC"
 
     LINUX_ARCH=""
     case "$HOST" in
-        i686-linux*)
-            LINUX_ARCH="-x86"
-            ;;
         aarch64-linux*)
             LINUX_ARCH="-arm64"
             ;;