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| author | zimmerma <zimmerma@211d60ee-9f03-0410-a15a-8952a2c7a4e4> | 2009-03-26 12:27:20 +0000 |
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| committer | zimmerma <zimmerma@211d60ee-9f03-0410-a15a-8952a2c7a4e4> | 2009-03-26 12:27:20 +0000 |
| commit | 4dc0c50f08d9b51a69980054a10d20e9f8609704 (patch) | |
| tree | fefa786c39f5c353a0075c6441d201923d0c5d89 /configure.ac | |
| parent | 870036d256ee38f97646cd937406cf76ed643f25 (diff) | |
| download | mpc-4dc0c50f08d9b51a69980054a10d20e9f8609704.tar.gz | |
[configure.ac] added comments why we require GMP >= 4.2 and MPFR >= 2.3.1
git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@507 211d60ee-9f03-0410-a15a-8952a2c7a4e4
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 9d070d2..9120c7a 100644 --- a/configure.ac +++ b/configure.ac @@ -213,7 +213,8 @@ AC_LINK_IFELSE( AC_MSG_ERROR([libmpfr not found or uses a different ABI.]) ]) -# Check for a recent GMP +# Check for a recent GMP: we need GMP 4.2 because we use the +# mp_get_memory_functions which appeared in GMP 4.2 AC_MSG_CHECKING(for recent GMP) AC_COMPILE_IFELSE( [AC_LANG_SOURCE( @@ -230,7 +231,9 @@ error AC_MSG_ERROR([GMP version >= 4.2 required]) ]) -# Check for a recent MPFR +# Check for a recent MPFR: we require MPFR 2.3.1 because of a bug in +# mpfr_div_ui which makes mpc_div_ui returns the wrong sign of the zero part +# when applied on a pure real or pure imaginary parameter (see mpfr r4950) AC_MSG_CHECKING(for recent MPFR) AC_COMPILE_IFELSE( [AC_LANG_SOURCE( |