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m4: dont try Wno-gnu option under GCC

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it will accept anything
This commit is contained in:
Danny Robson 2016-05-12 18:23:32 +10:00
parent 3802de5ba3
commit 1bfe4867ad
1 changed files with 3 additions and 1 deletions
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4
m4/nc_warnings.m4
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@ -55,11 +55,13 @@ AC_DEFUN([NC_WARNINGS],[
#AX_APPEND_COMPILE_FLAGS([-Wno-c99-extensions], [], [-Werror])
#AX_APPEND_COMPILE_FLAGS([-Wno-vla-extension], [], [-Werror])
AX_APPEND_COMPILE_FLAGS([-Wno-vla], [], [-Werror])
AX_APPEND_COMPILE_FLAGS([-Wno-gnu-anonymous-struct])
dnl GCC will happily compile with any "-Wno" argument, so enable GCC-isms
dnl only if we aren't GCC
AS_IF([test "x$ax_cv_cxx_compiler_vendor" != "xgnu"], [
AX_APPEND_COMPILE_FLAGS([-Wno-c99-extensions], [], [-Werror])
AX_APPEND_COMPILE_FLAGS([-Wno-flexible-array-extensions], [], [-Werror])
AX_APPEND_COMPILE_FLAGS([-Wno-gnu-anonymous-struct])
AX_APPEND_COMPILE_FLAGS([-Wno-gnu-conditional-omitted-operand], [], [-Werror])
AX_APPEND_COMPILE_FLAGS([-Wno-gnu-empty-struct], [], [-Werror])
AX_APPEND_COMPILE_FLAGS([-Wno-gnu-flexible-array-union-member], [], [-Werror])