annotate src/opus-1.3/m4/opus-intrinsics.m4 @ 83:ae30d91d2ffe
Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
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Chris Cannam |
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Fri, 07 Feb 2020 11:51:13 +0000 |
| parents |
7aeed7906520 |
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line source |
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1 dnl opus-intrinsics.m4
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2 dnl macro for testing for support for compiler intrinsics, either by default or with a compiler flag
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3
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4 dnl OPUS_CHECK_INTRINSICS(NAME-OF-INTRINSICS, COMPILER-FLAG-FOR-INTRINSICS, VAR-IF-PRESENT, VAR-IF-DEFAULT, TEST-PROGRAM-HEADER, TEST-PROGRAM-BODY)
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5 AC_DEFUN([OPUS_CHECK_INTRINSICS],
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6 [
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7 AC_MSG_CHECKING([if compiler supports $1 intrinsics])
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8 AC_LINK_IFELSE(
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9 [AC_LANG_PROGRAM($5, $6)],
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10 [
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11 $3=1
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12 $4=1
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13 AC_MSG_RESULT([yes])
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14 ],[
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15 $4=0
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16 AC_MSG_RESULT([no])
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17 AC_MSG_CHECKING([if compiler supports $1 intrinsics with $2])
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18 save_CFLAGS="$CFLAGS"; CFLAGS="$CFLAGS $2"
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19 AC_LINK_IFELSE([AC_LANG_PROGRAM($5, $6)],
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20 [
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21 AC_MSG_RESULT([yes])
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22 $3=1
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23 ],[
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24 AC_MSG_RESULT([no])
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25 $3=0
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26 ])
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27 CFLAGS="$save_CFLAGS"
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28 ])
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29 ])
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