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AC_DEFUN([DISABLE_COMPILER_WARNINGS], [
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# Clang throws a lot of warnings when it does not understand a flag. Disable
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|
# this warning for now so other warnings are visible.
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AC_MSG_CHECKING([if compiling with clang])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
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|
#ifndef __clang__
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|
not clang
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#endif
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|
]])],
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|
[CLANG=yes],
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|
[CLANG=no]
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|
)
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|
AC_MSG_RESULT([$CLANG])
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|
AS_IF([test "x$CLANG" = "xyes"], [CLANG_FLAGS=-Qunused-arguments])
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|
CFLAGS="$CFLAGS $CLANG_FLAGS"
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|
LDFLAGS="$LDFLAGS $CLANG_FLAGS"
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|
|
|
|
|
# Removing the dependency on -Wno-pointer-sign should be a goal. These are
|
|
|
# largely unsigned char */char* mismatches in asn1 functions.
|
|
|
save_cflags="$CFLAGS"
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|
|
CFLAGS=-Wno-pointer-sign
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|
|
AC_MSG_CHECKING([whether CC supports -Wno-pointer-sign])
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|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
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|
|
[AC_MSG_RESULT([yes])]
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|
|
[AM_CFLAGS=-Wno-pointer-sign],
|
|
|
[AC_MSG_RESULT([no])]
|
|
|
)
|
|
|
CFLAGS="$save_cflags $AM_CFLAGS"
|
|
|
])
|