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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 DEVELOPER_CFLAGS += -DENABLE_SHA256
  21
  22 ifndef COMPILER_FEATURES
  23 COMPILER_FEATURES := $(shell ./detect-compiler $(CC))
  24 endif
  25
  26 ifneq ($(filter clang4,$(COMPILER_FEATURES)),)
  27 DEVELOPER_CFLAGS += -Wtautological-constant-out-of-range-compare
  28 endif
  29
  30 ifneq ($(or $(filter gcc6,$(COMPILER_FEATURES)),$(filter clang4,$(COMPILER_FEATURES))),)
  31 DEVELOPER_CFLAGS += -Wextra
  32 # if a function is public, there should be a prototype and the right
  33 # header file should be included. If not, it should be static.
  34 DEVELOPER_CFLAGS += -Wmissing-prototypes
  35 ifeq ($(filter extra-all,$(DEVOPTS)),)
  36 # These are disabled because we have these all over the place.
  37 DEVELOPER_CFLAGS += -Wno-empty-body
  38 DEVELOPER_CFLAGS += -Wno-missing-field-initializers
  39 DEVELOPER_CFLAGS += -Wno-sign-compare
  40 DEVELOPER_CFLAGS += -Wno-unused-parameter
  41 endif
  42 endif
  43
  44 # uninitialized warnings on gcc 4.9.2 in xdiff/xdiffi.c and config.c
  45 # not worth fixing since newer compilers correctly stop complaining
  46 ifneq ($(filter gcc4,$(COMPILER_FEATURES)),)
  47 ifeq ($(filter gcc5,$(COMPILER_FEATURES)),)
  48 DEVELOPER_CFLAGS += -Wno-uninitialized
  49 endif
  50 endif