[gnome-continuous-yocto/gnomeostree-3.28-rocko: 218/8267] rpm: Fix build with gcc6

[Emmanuele Bassi <ebassi src gnome org>]

commit b8e70ce2044b3f88b0d49bde31fd68dc57c10e86
Author: Khem Raj <raj khem gmail com>
Date:   Wed May 11 10:35:08 2016 -0700

    rpm: Fix build with gcc6
    
    (From OE-Core rev: e9c86d85460f45011bd978e1495a2b802d733020)
    
    Signed-off-by: Khem Raj <raj khem gmail com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/recipes-devtools/rpm/rpm/gcc6-stdlib.patch |   54 +++++++++++++++++++++++
 meta/recipes-devtools/rpm/rpm_5.4.16.bb         |    3 +-
 2 files changed, 56 insertions(+), 1 deletions(-)
---
diff --git a/meta/recipes-devtools/rpm/rpm/gcc6-stdlib.patch b/meta/recipes-devtools/rpm/rpm/gcc6-stdlib.patch
new file mode 100644
index 0000000..0a372c6
--- /dev/null
+++ b/meta/recipes-devtools/rpm/rpm/gcc6-stdlib.patch
@@ -0,0 +1,54 @@
+gcc6 has fixed a long standing c++ include issue where <cheader>
+was different from <header.h> inclusion via
+
+https://gcc.gnu.org/ml/libstdc++/2016-01/msg00025.html
+
+and its also descibed in https://gcc.gnu.org/gcc-6/porting_to.html
+rpmio component uses some .cpp and .cc fies which need to use
+C stdlib.h from C library and not the C++ libstdc++ header
+therefore we pass _GLIBCXX_INCLUDE_NEXT_C_HEADERS so that it
+keeps the old behavior
+
+/a/build/tmp/sysroots/raspberrypi2/usr/include/c++/6.0.1/cstdlib:143:11: error: '::getenv' has not been 
declared
+   using ::getenv;
+           ^~~~~~
+In file included from ../../rpm-5.4.15/system.h:201:0,
+                 from ../../rpm-5.4.15/rpmio/rpmjs.cpp:1:
+/a/build/tmp/sysroots/raspberrypi2/usr/include/c++/6.0.1/stdlib.h:62:12: error: 'std::getenv' has not been 
declared
+ using std::getenv;
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj khem gmail com>
+
+Index: rpm-5.4.15/rpmio/Makefile.am
+===================================================================
+--- rpm-5.4.15.orig/rpmio/Makefile.am
++++ rpm-5.4.15/rpmio/Makefile.am
+@@ -151,7 +151,7 @@ librpmio_la_SOURCES = \
+       groestl.c hamsi.c jh.c keccak.c lane.c luffa.c md2.c md6.c radiogatun.c\
+       salsa10.c salsa20.c shabal.c shavite3.c simd.c skein.c tib3.c tiger.c \
+       rpmgit.c rpmio-stub.c \
+-      rpmjs.cpp rpmjsio.c rpmkeyring.c \
++      rpmjni.cc rpmjs.cpp rpmjsio.c rpmkeyring.c \
+       rpmnix.c rpmodbc.c rpmsql.c set.c \
+       ar.c \
+       argv.c \
+@@ -195,7 +195,6 @@ librpmio_la_SOURCES = \
+       rpmhook.c \
+       rpmio.c \
+       rpmiob.c \
+-      rpmjni.cc \
+       rpmku.c \
+       rpmlog.c \
+       rpmltc.c \
+@@ -279,7 +278,9 @@ keccak.lo: $(top_srcdir)/rpmio/keccak.c
+ #rpmjs.lo: $(top_srcdir)/rpmio/rpmjs.c
+ #     @$(LTCOMPILE) -O0 -c $<
+ rpmjs.lo: $(top_srcdir)/rpmio/rpmjs.cpp
+-      @$(LTCOMPILE) -O0 -c $<
++      @$(LTCOMPILE) -O0 -c -D_GLIBCXX_INCLUDE_NEXT_C_HEADERS $<
++rpmjni.lo: $(top_srcdir)/rpmio/rpmjni.cc
++      @$(LTCOMPILE) -O0 -c -D_GLIBCXX_INCLUDE_NEXT_C_HEADERS $<
+ 
+ YACC = byacc -d
+ getdate.c: getdate.y
diff --git a/meta/recipes-devtools/rpm/rpm_5.4.16.bb b/meta/recipes-devtools/rpm/rpm_5.4.16.bb
index f2c12d2..7ebd5e9 100644
--- a/meta/recipes-devtools/rpm/rpm_5.4.16.bb
+++ b/meta/recipes-devtools/rpm/rpm_5.4.16.bb
@@ -116,6 +116,7 @@ SRC_URI += " \
           file://rpm-fix-lua-tests-compilation-failure.patch \
           file://rpmqv.c-check-_gpg_passphrase-before-ask-for-input.patch \
           file://0001-Disable-__sync_add_and_fetch_8-on-nios2.patch \
+          file://gcc6-stdlib.patch \
 "
 
 # OE specific changes
@@ -344,7 +345,7 @@ EXTRA_OECONF += "--verbose \
                --program-prefix= \
                YACC=byacc"
 
-CFLAGS_append = " -DRPM_VENDOR_WINDRIVER -DRPM_VENDOR_POKY -DRPM_VENDOR_OE"
+CFLAGS_append = " -DRPM_VENDOR_WINDRIVER -DRPM_VENDOR_POKY -DRPM_VENDOR_OE -D_GLIBCXX_INCLUDE_NEXT_C_HEADERS"
 
 LDFLAGS_append_libc-uclibc = "-lrt -lpthread"