Commit e1d81dec authored by Eric Engestrom's avatar Eric Engestrom Committed by Eric Engestrom

build: make passing an incorrect pointer type a hard error

More or less any of this issue pointed out by the compiler is
a coding error. Make sure we flag it and bail loudly.

v2: - apply the change to autotools and scons as well (Emil)
    - C++ doesn't need this, it's already an error and the flag
      doesn't exist (Gert)
v3: - drop scons, flags are not checked so until someone adds that
      functionality we can't have this.
Signed-off-by: Eric Engestrom's avatarEric Engestrom <>
Reviewed-by: Dylan Baker <> # v1
Reviewed-by: Emil Velikov <> # v1
[Emil: apply the same change to autotools and scons]
Signed-off-by: default avatarEmil Velikov <>
Reviewed-by: Eric Anholt's avatarEric Anholt <>
parent 598f10ea
......@@ -32,6 +32,7 @@ LOCAL_C_INCLUDES += \
-Wno-error \
-Wno-unused-parameter \
-Wno-pointer-arith \
-Wno-missing-field-initializers \
......@@ -320,6 +320,7 @@ dnl
AX_CHECK_COMPILE_FLAG([-Werror=implicit-function-declaration], [CFLAGS="$CFLAGS -Werror=implicit-function-declaration"])
AX_CHECK_COMPILE_FLAG([-Werror=missing-prototypes], [CFLAGS="$CFLAGS -Werror=missing-prototypes"])
AX_CHECK_COMPILE_FLAG([-Werror=incompatible-pointer-types], [CFLAGS="$CFLAGS -Werror=incompatible-pointer-types"])
AX_CHECK_COMPILE_FLAG([-Wmissing-prototypes], [CFLAGS="$CFLAGS -Wmissing-prototypes"])
dnl Dylan Baker: gcc and clang always accepr -Wno-*, hence check for the original warning, then set the no-* flag
AX_CHECK_COMPILE_FLAG([-Wmissing-field-initializers], [CFLAGS="$CFLAGS -Wno-missing-field-initializers"])
......@@ -804,6 +804,7 @@ endif
c_args = []
foreach a : ['-Werror=implicit-function-declaration',
'-Werror=missing-prototypes', '-Werror=return-type',
'-fno-trapping-math', '-Qunused-arguments']
if cc.has_argument(a)
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