Build: include 32bit Linux builds

Author: Oldes

.github/workflows/build-all.yml

@@ -128,6 +128,16 @@ jobs:
       - name: Install Siskin Builder
         uses: oldes/install-siskin@v0.7.1
 
+      - name: Install GCC multilib
+        run: apt-get install gcc-multilib
+
+      - name: Build 32bit Rebol/Base using gcc
+        run: ./siskin make/rebol3.nest %rebol3-base-linux-x86
+      - name: Build 32bit Rebol/Core using gcc
+        run: ./siskin make/rebol3.nest %rebol3-core-linux-x86
+      - name: Build 32bit Rebol/Bulk using gcc
+        run: ./siskin make/rebol3.nest %rebol3-bulk-linux-x86
+
       - name: Build 64bit Rebol/Base using gcc
         run: ./siskin make/rebol3.nest %rebol3-base-linux-x64
       - name: Build 64bit Rebol/Core using gcc

make/rebol3.nest

@@ -900,6 +900,24 @@ eggs: [
 		]
 	]
 	#if Linux? [
+		"Rebol/Base linux-x86" [
+			name:     %rebol3-base-linux-x86
+			:target-linux
+			:make-x86-exe
+		]
+		"Rebol/Core linux-x86" [
+			name:     %rebol3-core-linux-x86
+			:target-linux
+			:include-rebol-core
+			:make-x86-exe
+		]
+		"Rebol/Bulk linux-x86" [
+			name:     %rebol3-bulk-linux-x86
+			:target-linux
+			:include-rebol-bulk
+			:make-x86-exe
+		]
+
 		"Rebol/Base linux-x64" [
 			name:     %rebol3-base-linux-x64
 			:target-linux