From 5176e0a9942b4f1a7ebb32d516a284dedcf0d0b5 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Sun, 22 Apr 2012 19:30:13 -0400
Subject: Detect build platform like build architecture.

---
diff --git a/src/opkbuild.sh b/src/opkbuild.sh
index a184501..a525e4b 100644
--- a/src/opkbuild.sh
+++ b/src/opkbuild.sh
@@ -121,7 +121,7 @@ if [ "$(cat format)" != '1.0' ]; then
 	exit 1
 fi
 
-# Attempt to detect the build architecture tuple.
+# Attempt to detect the build architecture.
 build_arch=$(opkg print-architecture | sed -n \
 	's/^arch \([^ -][^ -]*-[^ -][^ -]*-[^ -][^ -]*\) [0-9][0-9]*$/\1/p')
 if [ -z "${build_arch}" ]; then
@@ -137,28 +137,24 @@ if [ -z "${host_arch}" ]; then
 	host_arch="${build_arch}"
 fi
 
-# Attempt to detect the host platform.
+# Attempt to detect the build platform.
+build_platform=$(opkg print-architecture | sed -n \
+	's/^arch \([^ -][^ -]*\) [0-9][0-9]*$/\1/p' | \
+	grep -v 'all')
+if [ -z "${build_platform}" ]; then
+	printf 'opkbuild: Error: No build platforms found\n' >&2
+	exit 1
+elif [ $(echo "${build_platform}" | wc -l) -gt 1 ]; then
+	printf 'opkbuild: Error: Multiple build platforms found\n' >&2
+	exit 1
+fi
+
 # If there no config files to copy, build platform-independent packages.
 if [ ! -f config ]; then
 	host_platform=''
-# If a host platform was not specified ...
+# If a host platform was not specified, natively configure.
 elif [ -z "${host_platform}" ]; then
-	host_platform=$(opkg print-architecture | \
-		sed -n 's/^arch \([^ -][^ -]*\) [0-9][0-9]*$/\1/p' | \
-		grep -v 'all')
-	# ... and there are config files and zero installable platforms, fail.
-	if [ -z "${host_platform}" ]; then
-		printf 'opkbuild: Error: %s\n' \
-			'Building platform-dependent package and no platforms detected' >&2
-		exit 1
-	# ... and there are config files and multiple installable platforms, request
-	# explicit selection.
-	elif [ $(echo "${host_platform}" | wc -l) -gt 1 ]; then
-		printf 'opkbuild: Error: %s\n' \
-			'Multiple platforms found while detecting host' >&2
-		exit 1
-	fi
-	# ... and there are config files and one installable platform, build for it.
+	host_platform="${build_platform}"
 fi
 
 # Resolve status override file path.
@@ -185,6 +181,7 @@ IFS=- read OH_BUILD_ARCH_CPU OH_BUILD_ARCH_KERNEL OH_BUILD_ARCH_LIBS <<EOF
 ${OH_BUILD_ARCH_DIST}
 EOF
 export OH_BUILD_ARCH_CPU OH_BUILD_ARCH_KERNEL OH_BUILD_ARCH_LIBS
+export OH_BUILD_PLATFORM="${build_platform}"
 
 # Set environment variables for the host architecture and platform.
 export OH_HOST_ARCH_DIST="${host_arch}"
--
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