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6f1eda0629
It turns out the gcc option -Wframe-larger-than=<size> which I recently added to the build system is not supported in older versions of gcc. Since this is just a flag to ensure I keep stack usage under control I've added a configure check to detect if gcc supports it. If it's available we use it in the proper places, if it's not we don't.
23 lines
484 B
Plaintext
23 lines
484 B
Plaintext
dnl #
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dnl # Check if gcc supports -Wframe-larger-than=<size> option.
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dnl #
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AC_DEFUN([ZFS_AC_CONFIG_USER_FRAME_LARGER_THAN], [
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AC_MSG_CHECKING([for -Wframe-larger-than=<size> support])
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saved_flags="$CFLAGS"
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CFLAGS="$CFLAGS -Wframe-larger-than=1024"
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AC_RUN_IFELSE(AC_LANG_PROGRAM( [], []),
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[
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FRAME_LARGER_THAN=-Wframe-larger-than=1024
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AC_MSG_RESULT([yes])
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],
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[
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FRAME_LARGER_THAN=
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AC_MSG_RESULT([no])
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])
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CFLAGS="$saved_flags"
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AC_SUBST([FRAME_LARGER_THAN])
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])
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