Fix ext SDK installer regression

The following changes since commit 687e5ef86361a16d6c411386939d4ba96a5909ea:

libsdl: remove redundant configure_tweak patch (2015-12-01 21:31:04 +0000)

are available in the git repository at:

git://git.openembedded.org/openembedded-core-contrib paule/sdk-env-fix3
http://cgit.openembedded.org/cgit.cgi/openembedded-core-contrib/log/?h=paule/sdk-env-fix3

Paul Eggleton (1):
toolchain-shar-extract.sh: ensure cleaned environment will work for ext SDK

 meta/files/toolchain-shar-extract.sh | 2 ++
 1 file changed, 2 insertions(+)

2.5.0

In OE-Core revision 6d2074d477596971dc52027dd87b02af7f39138d we added a line which re-executes the script with a cleaned environment using env -i; unfortunately that caused a regression in the extensible SDK on Ubuntu 14.04 - strangely, there it seems that the value you get for PATH under env -i contains '.' which triggers a sanity check failure when preparing the build system. Do a belt-and-braces fix - source /etc/environment if it exists (so you get a more complete PATH value) and then filter any nastiness out of PATH for good measure. (Ubuntu 15.04 doesn't seem to suffer from the same problem.)

---
 meta/files/toolchain-shar-extract.sh | 2 ++
 1 file changed, 2 insertions(+)

index 8ef2b77..b20e393 100644
@@ -1,6 +1,8 @@
 #!/bin/sh
 
 [ -z "$ENVCLEANED" ] && exec /usr/bin/env -i ENVCLEANED=1 "$0" "$@"
+[ -f /etc/environment ] && . /etc/environment
+export PATH=`echo "$PATH" | sed -e 's/:\.//' -e 's/::/:/'`
 
 INST_ARCH=$(uname -m | sed -e "s/i[3-6]86/ix86/" -e "s/x86[-_]64/x86_64/")
 SDK_ARCH=$(echo @SDK_ARCH@ | sed -e "s/i[3-6]86/ix86/" -e "s/x86[-_]64/x86_64/")

2.5.0