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Avoid spurious GCC10 stringop-overflow errors

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I already got them at several occasions
This commit is contained in:
Philippe Teuwen 2020-10-19 21:21:24 +02:00
parent f1d39f7e53
commit daabdf2e31
1 changed files with 8 additions and 1 deletions
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9
Makefile.defs
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@ -27,6 +27,9 @@ LD = g++
SH = sh
BASH = bash
PERL = perl
CCC =foo
CC_VERSION = $(shell $(CC) -dumpversion 2>/dev/null|sed 's/\..*//')
CC_VERSION := $(or $(strip $(CC_VERSION)),0)
PATHSEP=/
PREFIX ?= /usr/local
@ -62,7 +65,11 @@ DEFCFLAGS += -Wbad-function-cast -Wredundant-decls -Wmissing-prototypes -Wchar-s
# Some more warnings we need first to eliminate, so temporarely tolerated:
DEFCFLAGS += -Wcast-align -Wno-error=cast-align
DEFCFLAGS += -Wswitch-enum -Wno-error=switch-enum
# GCC 10 has issues with false positives on stringop-overflow, let's disable them for now (cf https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92955, https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94335)
# beware these flags didn't exist for GCC < 7
ifeq ($(shell expr $(CC_VERSION) \>= 10), 1)
DEFCFLAGS += -Wno-stringop-overflow -Wno-error=stringop-overflow
endif
ifeq ($(platform),Darwin)
# their readline has strict-prototype issues
DEFCFLAGS += -Wno-strict-prototypes