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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.
This commit is contained in:
Cary R 2009-10-08 13:06:59 -07:00 committed by Stephen Williams
parent 3303cc144f
commit ff39575dc0
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 AC_CANONICAL_HOST
dnl Checks for programs. dnl Checks for programs.
AC_PROG_CC 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_CC_C99
AC_PROG_CXX AC_PROG_CXX
AC_PROG_RANLIB AC_PROG_RANLIB