edk2: drop commandSuffix, try to build on x86.

The build does not work on x86 but this could change if someone
has the enough skills, interest and time for "fixing" this.

sys-boot/edk2/edk2-2018.recipe

@@ -25,14 +25,11 @@ CHECKSUM_SHA256="a37aa6dc7a4326b562ce03e225afd96a0cd1dc847d9aeddfd867ce6b2e7cc7b
 SOURCE_DIR="edk2-vUDK$portVersion"
 PATCHES="edk2-$portVersion.patchset"
 
-ARCHITECTURES="!x86_gcc2 !x86 x86_64"
-SECONDARY_ARCHITECTURES="!x86"
-DISABLE_SOURCE_PACKAGE="yes"
-
-commandSuffix=$secondaryArchSuffix
+ARCHITECTURES="!x86_gcc2 ?x86 x86_64"
 if [ "$targetArchitecture" = x86_gcc2 ]; then
-	commandSuffix=
+SECONDARY_ARCHITECTURES="?x86"
 fi
+DISABLE_SOURCE_PACKAGE="yes"
 
 PROVIDES="
 	edk2$secondaryArchSuffix = $portVersion compat >= 0
@@ -48,7 +45,7 @@ BUILD_REQUIRES="
 BUILD_PREREQUIRES="
 	cmd:find
 	cmd:gcc$secondaryArchSuffix
-	cmd:iasl$commandSuffix
+	cmd:iasl
 	cmd:make
 	cmd:nasm
 	cmd:python2
@@ -76,7 +73,10 @@ PATCH()
 
 BUILD()
 {
-	make -C BaseTools
+	if [ "$effectiveTargetArchitecture" = x86 ]; then
+		HOST_ARCH=IA32
+	fi
+	make -C BaseTools ${HOST_ARCH:+HOST_ARCH=$HOST_ARCH}
 	. ./edksetup.sh
 	local EDK_TOOLS_PATH="$sourceDir"/BaseTools
 	. ./edksetup.sh BaseTools