pkg-config: Allow secondary arch builds

Since it hardcodes the search paths inside the binary, either
we must make a secondary arch build of it for _x86 ports,
either we could export a patched PKG_CONFIG_LIBDIR from
haikuporter 's environment... but this seems to work anyway.

dev-util/pkgconfig/pkgconfig-0.27.1.recipe

@@ -7,28 +7,29 @@ SRC_URI="http://pkgconfig.freedesktop.org/releases/pkg-config-0.27.1.tar.gz"
 CHECKSUM_MD5="5392b4e3372879c5bf856173b418d6a2"
 REVISION="2"
 ARCHITECTURES="x86_gcc2 x86 x86_64"
+SECONDARY_ARCHITECTURES="x86_gcc2 x86"
 
 PATCHES="pkgconfig-0.27.1.patchset"
 
 PROVIDES="
-	pkgconfig = $portVersion compat >= 0.27
-	cmd:pkg_config = $portVersion compat >= 0.27
+	pkgconfig$secondaryArchSuffix = $portVersion compat >= 0.27
+	cmd:pkg_config$secondaryArchSuffix = $portVersion compat >= 0.27
 	"
 REQUIRES="
-	haiku >= $haikuVersion
-	lib:libiconv
+	haiku$secondaryArchSuffix >= $haikuVersion
+	lib:libiconv$secondaryArchSuffix
 	"
 BUILD_REQUIRES="
-	devel:libiconv
+	devel:libiconv$secondaryArchSuffix
 	"
 BUILD_PREREQUIRES="
-	haiku_devel >= $haikuVersion
+	haiku${secondaryArchSuffix}_devel >= $haikuVersion
 	cmd:aclocal
 	cmd:autoconf
 	cmd:automake
 	cmd:autoreconf
-	cmd:gcc
-	cmd:ld
+	cmd:gcc$secondaryArchSuffix
+	cmd:ld$secondaryArchSuffix
 	cmd:libtoolize
 	cmd:make
 	"
@@ -46,7 +47,7 @@ BUILD()
 	autoconf
 	automake --add-missing
 
-	pcPathSubdir="develop/lib/pkgconfig"
+	pcPathSubdir="develop/lib${secondaryArchSuffix/_//}/pkgconfig"
 	pcPath="/boot/home/config/non-packaged/$pcPathSubdir"
 	pcPath="$pcPath:/boot/home/config/$pcPathSubdir"
 	pcPath="$pcPath:/boot/system/$pcPathSubdir"