annotate src/fftw-3.3.3/m4/ax_gcc_version.m4 @ 23:619f715526df
sv_v2.1
Update Vamp plugin SDK to 2.5
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Chris Cannam |
| date |
Thu, 09 May 2013 10:52:46 +0100 |
| parents |
37bf6b4a2645 |
| children |
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| rev |
line source |
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Chris@10
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1 dnl @synopsis AX_GCC_VERSION(MAJOR, MINOR, PATCHLEVEL, [ACTION-SUCCESS], [ACTION-FAILURE])
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2 dnl @summary check wither gcc is at least version MAJOR.MINOR.PATCHLEVEL
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3 dnl @category InstalledPackages
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4 dnl
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5 dnl Check whether we are using gcc and, if so, whether its version
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6 dnl is at least MAJOR.MINOR.PATCHLEVEL
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7 dnl
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8 dnl ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
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9 dnl success/failure.
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10 dnl
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11 dnl @version 2005-05-30
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12 dnl @license GPLWithACException
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13 dnl @author Steven G. Johnson <stevenj@alum.mit.edu> and Matteo Frigo.
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14 AC_DEFUN([AX_GCC_VERSION],
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15 [
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16 AC_REQUIRE([AC_PROG_CC])
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17 AC_CACHE_CHECK(whether we are using gcc $1.$2.$3 or later, ax_cv_gcc_$1_$2_$3,
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18 [
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19 ax_cv_gcc_$1_$2_$3=no
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20 if test "$GCC" = "yes"; then
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21 dnl The semicolon after "yes" below is to pacify NeXT's syntax-checking cpp.
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22 AC_EGREP_CPP(yes, [
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23 #ifdef __GNUC__
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24 # if (__GNUC__ > $1) || (__GNUC__ == $1 && __GNUC_MINOR__ > $2) \
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25 || (__GNUC__ == $1 && __GNUC_MINOR__ == $2 && __GNUC_PATCHLEVEL__ >= $3)
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26 yes;
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27 # endif
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28 #endif
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29 ], [ax_cv_gcc_$1_$2_$3=yes])
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30 fi
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31 ])
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32 if test "$ax_cv_gcc_$1_$2_$3" = yes; then
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33 m4_default([$4], :)
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34 else
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35 m4_default([$5], :)
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36 fi
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37 ])
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38
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