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