From 45cbf065f2771122bdc261c220a4fe0369a4136c56b0a0c61d8353ec3554fc31 Mon Sep 17 00:00:00 2001
From: Michael Matz <matz@suse.com>
Date: Tue, 27 Mar 2018 14:02:35 +0000
Subject: [PATCH 1/2] - Add some -Wno-error flags for gcc-8 compatibility.

OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gdb?expand=0&rev=181
---
 gdb.changes |  5 +++++
 gdb.spec    | 20 +++++++++++++++-----
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/gdb.changes b/gdb.changes
index 9c1f0b7..49a4676 100644
--- a/gdb.changes
+++ b/gdb.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Mar 27 14:01:27 UTC 2018 - matz@suse.com
+
+- Add some -Wno-error flags for gcc-8 compatibility.
+
 -------------------------------------------------------------------
 Fri Mar  9 16:27:10 UTC 2018 - matz@suse.com
 
diff --git a/gdb.spec b/gdb.spec
index 0b76d19..626f3cd 100644
--- a/gdb.spec
+++ b/gdb.spec
@@ -590,11 +590,21 @@ export CFLAGS="$RPM_OPT_FLAGS"
 # warn about unknown -Wno- flags, _except_ if there are other
 # diagnostics as well, so let's force an uninitialized use warning
 # and grep for the diagnostic about the -Wno flag:
-if ! echo "int foo(void) { int a; return a;} " | \
-   $CC  -x c -c - -o /dev/null -W -Wno-implicit-fallthrough 2>&1 | \
-   grep Wno-implici >/dev/null; then
-  CFLAGS="$CFLAGS -Wno-implicit-fallthrough"
-fi
+# -Wno-error=cast-function-type:
+# FIXME: gcc-8.0:
+# ./elf32-target.h:215:4: error: cast between incompatible function types from 'void * (*)(bfd *)' {aka 'void * (*)(struct bfd *)'} to 'asymbol * (*)(bfd *, void *, long unsigned int)' {aka 'struct bfd_symbol * (*)(struc t bfd *, void *, long unsigned int)'} [-Werror=cast-function-type]
+#    ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
+# -Wno-error=stringop-truncation:
+# FIXME: gcc-8.0:
+# linux-tdep.c:1767:11: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound 17 equals destination size [-Werror=stringop-truncation]
+#    strncpy (p->pr_fname, basename, sizeof (p->pr_fname));
+for opt in -Wno-implicit-fallthrough -Wno-error=cast-function-type -Wno-error=stringop-truncation; do
+  if ! echo "int foo(void) { int a; return a;} " | \
+     $CC  -x c -c - -o /dev/null -W ${opt} 2>&1 | \
+     grep Wno >/dev/null; then
+    CFLAGS="$CFLAGS ${opt}"
+  fi
+done
 %if %{have_libipt}
 CFLAGS="$CFLAGS -DPERF_ATTR_SIZE_VER5_BUNDLE"
 (

From 945af33f4df221fa42760984cfcbeb81b894c73ef7d9b62b30b8f7939c85bb53 Mon Sep 17 00:00:00 2001
From: Michael Matz <matz@suse.com>
Date: Tue, 27 Mar 2018 15:55:16 +0000
Subject: [PATCH 2/2] .

OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gdb?expand=0&rev=182
---
 gdb.spec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb.spec b/gdb.spec
index 626f3cd..010155a 100644
--- a/gdb.spec
+++ b/gdb.spec
@@ -601,7 +601,7 @@ export CFLAGS="$RPM_OPT_FLAGS"
 for opt in -Wno-implicit-fallthrough -Wno-error=cast-function-type -Wno-error=stringop-truncation; do
   if ! echo "int foo(void) { int a; return a;} " | \
      $CC  -x c -c - -o /dev/null -W ${opt} 2>&1 | \
-     grep Wno >/dev/null; then
+     egrep "Wno|no option" >/dev/null; then
     CFLAGS="$CFLAGS ${opt}"
   fi
 done