Remove as no longer needed:

Workaround gcc-8.0: -Wno-error=cast-function-type,stringop-truncation

gdb.spec

@@ -26,7 +26,7 @@ Version: 8.1.90.%{snapsrc}
 
 # The release always contains a leading reserved number, start it at 1.
 # `upstream' is not a part of `name' to stay fully rpm dependencies compatible for the testing.
-Release: 31%{?dist}
+Release: 32%{?dist}
 
 License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ and GPLv2+ with exceptions and GPL+ and LGPLv2+ and LGPLv3+ and BSD and Public Domain and GFDL
 Group: Development/Debuggers
@@ -503,18 +503,6 @@ cd %{gdb_build}$fprofile
 export CFLAGS="$RPM_OPT_FLAGS %{?_with_asan:-fsanitize=address}"
 export LDFLAGS="%{?__global_ldflags} %{?_with_asan:-fsanitize=address}"
 
-%if 0%{?fedora} > 27 || 0%{?rhel} > 7
-# 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 * (*)(struct bfd *, void *, long unsigned int)'} [-Werror=cast-function-type]
-#    ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
-CFLAGS="$CFLAGS -Wno-error=cast-function-type"
-
-# FIXME: gcc-8.0:
-# linux-tdep.c:1767:11: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound 17 equals destination size [-Werror=stringop-truncation]
-#    strncpy (p->pr_fname, basename, sizeof (p->pr_fname));
-CFLAGS="$CFLAGS -Wno-error=stringop-truncation"
-%endif # 0%{?fedora} > 27 || 0%{?rhel} > 7
-
 %if 0%{!?rhel:1} || 0%{?rhel} > 7
 CFLAGS="$CFLAGS -DDNF_DEBUGINFO_INSTALL"
 %endif
@@ -1035,6 +1023,10 @@ fi
 %endif
 
 %changelog
+* Thu Jul 12 2018 Jan Kratochvil <jan.kratochvil@redhat.com> - 8.1.90.20180708-32.fc29
+- Remove as no longer needed:
+  Workaround gcc-8.0: -Wno-error=cast-function-type,stringop-truncation
+
 * Thu Jul 12 2018 Jan Kratochvil <jan.kratochvil@redhat.com> - 8.1.90.20180708-31.fc29
 - [dts] Upgrade libstdc++-v3-python to 8.1.1-20180626.