[gnome-continuous-yocto/gnomeostree-3.28-rocko: 3778/8267] uninative: rebuild uninative for gcc 4.8 and 4.9

[Emmanuele Bassi <ebassi src gnome org>]

commit c21cec84886d9c70396e9be0ceb9a8ef300b54be
Author: Ed Bartosh <ed bartosh linux intel com>
Date:   Wed Dec 14 01:55:04 2016 +0200

    uninative: rebuild uninative for gcc 4.8 and 4.9
    
    Some c++ libraries fail to build if uninative is built
    with gcc 5.x and host gcc version is either 4.8 or 4.9.
    
    The issue should be solved by making separate uninative sstate
    directory structure sstate-cache/universal-<gcc version> for host gcc
    versions 4.8 and 4.9. This causes rebuilds of uninative if host gcc
    is either 4.8 or 4.9 and it doesn't match gcc version used to build
    uninative.
    
    [YOCTO #10441]
    
    (From OE-Core rev: d36f41e5658bbbb6080ee833027879c119edf3e0)
    
    Signed-off-by: Ed Bartosh <ed bartosh linux intel com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/classes/populate_sdk_ext.bbclass |    5 +++--
 meta/classes/uninative.bbclass        |    2 +-
 meta/lib/oe/utils.py                  |   14 ++++++++++++++
 3 files changed, 18 insertions(+), 3 deletions(-)
---
diff --git a/meta/classes/populate_sdk_ext.bbclass b/meta/classes/populate_sdk_ext.bbclass
index 3c3a73c..1affa9d 100644
--- a/meta/classes/populate_sdk_ext.bbclass
+++ b/meta/classes/populate_sdk_ext.bbclass
@@ -374,8 +374,9 @@ python copy_buildsystem () {
 
     sstate_out = baseoutpath + '/sstate-cache'
     bb.utils.remove(sstate_out, True)
-    # uninative.bbclass sets NATIVELSBSTRING to 'universal'
-    fixedlsbstring = 'universal'
+
+    # uninative.bbclass sets NATIVELSBSTRING to 'universal%s' % oe.utils.host_gcc_version(d)
+    fixedlsbstring = "universal%s" % oe.utils.host_gcc_version(d)
 
     sdk_include_toolchain = (d.getVar('SDK_INCLUDE_TOOLCHAIN', True) == '1')
     sdk_ext_type = d.getVar('SDK_EXT_TYPE', True)
diff --git a/meta/classes/uninative.bbclass b/meta/classes/uninative.bbclass
index 9242320..11cbf9b 100644
--- a/meta/classes/uninative.bbclass
+++ b/meta/classes/uninative.bbclass
@@ -88,7 +88,7 @@ def enable_uninative(d):
     loader = d.getVar("UNINATIVE_LOADER", True)
     if os.path.exists(loader):
         bb.debug(2, "Enabling uninative")
-        d.setVar("NATIVELSBSTRING", "universal")
+        d.setVar("NATIVELSBSTRING", "universal%s" % oe.utils.host_gcc_version(d))
         d.appendVar("SSTATEPOSTUNPACKFUNCS", " uninative_changeinterp")
         d.prependVar("PATH", "${STAGING_DIR}-uninative/${BUILD_ARCH}-linux${bindir_native}:")
 
diff --git a/meta/lib/oe/utils.py b/meta/lib/oe/utils.py
index d6545b1..2b095f1 100644
--- a/meta/lib/oe/utils.py
+++ b/meta/lib/oe/utils.py
@@ -230,6 +230,20 @@ def format_pkg_list(pkg_dict, ret_format=None):
 
     return '\n'.join(output)
 
+def host_gcc_version(d):
+    compiler = d.getVar("BUILD_CC", True)
+    retval, output = getstatusoutput("%s --version" % compiler)
+    if retval:
+        bb.fatal("Error running %s --version: %s" % (compiler, output))
+
+    import re
+    match = re.match(".* (\d\.\d)\.\d.*", output.split('\n')[0])
+    if not match:
+        bb.fatal("Can't get compiler version from %s --version output" % compiler)
+
+    version = match.group(1)
+    return "-%s" % version if version in ("4.8", "4.9") else ""
+
 #
 # Python 2.7 doesn't have threaded pools (just multiprocessing)
 # so implement a version here