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76dad7f414
Include debugging symbols in tests by default to improve stack traces and also set the compiler optimisation level to improve the debugging experience. Signed-off-by: Thomas Wood <thomas.wood@intel.com>
63 lines
1.5 KiB
Plaintext
63 lines
1.5 KiB
Plaintext
dnl as-compiler-flag.m4 0.1.0
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dnl autostars m4 macro for detection of compiler flags
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dnl David Schleef <ds@schleef.org>
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dnl $Id: as-compiler-flag.m4,v 1.1 2005/12/15 23:35:19 ds Exp $
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dnl AS_COMPILER_FLAG(CFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
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dnl Tries to compile with the given CFLAGS.
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dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags,
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dnl and ACTION-IF-NOT-ACCEPTED otherwise.
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AC_DEFUN([AS_COMPILER_FLAG],
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[
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AC_MSG_CHECKING([to see if compiler understands $1])
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $1"
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AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no])
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CFLAGS="$save_CFLAGS"
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if test "X$flag_ok" = Xyes ; then
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m4_ifvaln([$2],[$2])
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true
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else
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m4_ifvaln([$3],[$3])
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true
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fi
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AC_MSG_RESULT([$flag_ok])
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])
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dnl AS_COMPILER_FLAGS(VAR, FLAGS)
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dnl Tries to compile with the given CFLAGS.
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AC_DEFUN([AS_COMPILER_FLAGS],
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[
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list=$2
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flags_supported=""
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flags_unsupported=""
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AC_MSG_CHECKING([for supported compiler flags])
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for each in $list
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do
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $each"
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AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no])
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CFLAGS="$save_CFLAGS"
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if test "X$flag_ok" = Xyes ; then
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flags_supported="$flags_supported $each"
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else
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flags_unsupported="$flags_unsupported $each"
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fi
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done
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AC_MSG_RESULT([$flags_supported])
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if test "X$flags_unsupported" != X ; then
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AC_MSG_WARN([unsupported compiler flags: $flags_unsupported])
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fi
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$1="$$1 $flags_supported"
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])
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