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We must have autoconf version 2.60 or later. 

When AC_PROG_CC_C99 was added recently we created an implicit
requirement for autoconf version 2.60. This patch makes that
implicit requirement and explicit requirement.
(cherry picked from commit ff39575dc0)
This commit is contained in:
Cary R 2009-10-08 13:06:59 -07:00 committed by Stephen Williams
parent 1a0d475907
commit 98e5e36f03
1 changed files with 6 additions and 0 deletions
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6
configure.in
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@ -11,6 +11,12 @@ AC_CONFIG_HEADER(tgt-vhdl/vhdl_config.h)
AC_CANONICAL_HOST
dnl Checks for programs.
AC_PROG_CC
# AC_PROG_CC_C99 is only available in autoconf version 2.60 and later.
# If you must use an older version then comment out the following two
# lines, but be warned that there could be issues with finding the
# nan(), etc. functions. It is really best to upgrade to a supported
# version of autoconf.
AC_PREREQ([2.60])
AC_PROG_CC_C99
AC_PROG_CXX
AC_PROG_RANLIB