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   1 ifeq ($(filter no-error,$(DEVOPTS)),)
   2 DEVELOPER_CFLAGS += -Werror
   3 endif
   4 ifneq ($(filter pedantic,$(DEVOPTS)),)
   5 DEVELOPER_CFLAGS += -pedantic
   6 # don't warn for each N_ use
   7 DEVELOPER_CFLAGS += -DUSE_PARENS_AROUND_GETTEXT_N=0
   8 endif
   9 DEVELOPER_CFLAGS += -Wall
  10 DEVELOPER_CFLAGS += -Wdeclaration-after-statement
  11 DEVELOPER_CFLAGS += -Wformat-security
  12 DEVELOPER_CFLAGS += -Wno-format-zero-length
  13 DEVELOPER_CFLAGS += -Wold-style-definition
  14 DEVELOPER_CFLAGS += -Woverflow
  15 DEVELOPER_CFLAGS += -Wpointer-arith
  16 DEVELOPER_CFLAGS += -Wstrict-prototypes
  17 DEVELOPER_CFLAGS += -Wunused
  18 DEVELOPER_CFLAGS += -Wvla
  19
  20 ifndef COMPILER_FEATURES
  21 COMPILER_FEATURES := $(shell ./detect-compiler $(CC))
  22 endif
  23
  24 ifneq ($(filter clang4,$(COMPILER_FEATURES)),)
  25 DEVELOPER_CFLAGS += -Wtautological-constant-out-of-range-compare
  26 endif
  27
  28 ifneq ($(or $(filter gcc6,$(COMPILER_FEATURES)),$(filter clang4,$(COMPILER_FEATURES))),)
  29 DEVELOPER_CFLAGS += -Wextra
  30 # if a function is public, there should be a prototype and the right
  31 # header file should be included. If not, it should be static.
  32 DEVELOPER_CFLAGS += -Wmissing-prototypes
  33 ifeq ($(filter extra-all,$(DEVOPTS)),)
  34 # These are disabled because we have these all over the place.
  35 DEVELOPER_CFLAGS += -Wno-empty-body
  36 DEVELOPER_CFLAGS += -Wno-missing-field-initializers
  37 DEVELOPER_CFLAGS += -Wno-sign-compare
  38 DEVELOPER_CFLAGS += -Wno-unused-parameter
  39 endif
  40 endif
  41
  42 # uninitialized warnings on gcc 4.9.2 in xdiff/xdiffi.c and config.c
  43 # not worth fixing since newer compilers correctly stop complaining
  44 ifneq ($(filter gcc4,$(COMPILER_FEATURES)),)
  45 ifeq ($(filter gcc5,$(COMPILER_FEATURES)),)
  46 DEVELOPER_CFLAGS += -Wno-uninitialized
  47 endif
  48 endif