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Address bug #10839.

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This commit is contained in:
Eric S. Raymond 2008-01-21 17:04:40 +00:00
parent 8e1f96522a
commit c5d91aff48
1 changed files with 15 additions and 1 deletions
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16
configure.ac
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@ -60,6 +60,20 @@ AM_INIT_AUTOMAKE([1.9 tar-ustar foreign])
AM_GNU_GETTEXT([external]) AM_GNU_GETTEXT([external])
AC_PROG_RANLIB AC_PROG_RANLIB
#######################################################################
# Require GCC 4.x
#######################################################################
set -- `g++ --version`
GCC_VERSION=$3
parts=`echo $GCC_VERSION | tr '.' ' '`
set $parts
GCC_MAJOR_VERSION=$1
if test $GCC_MAJOR_VERSION -lt 4
then
AC_MSG_ERROR([*** G++ major version $GCC_MAJOR_VERSION is too old.])
fi
####################################################################### #######################################################################
# Configuration options # # Configuration options #
####################################################################### #######################################################################
@ -135,7 +149,7 @@ if test "x$optipng" = "xyes"
then then
AC_PATH_PROGS([OPTIPNG_BIN], [optipng], [none]) AC_PATH_PROGS([OPTIPNG_BIN], [optipng], [none])
if test \( "x$OPTIPNG_BIN" = "xnone" \) -a \( "x$optipng" = xyes \); then if test \( "x$OPTIPNG_BIN" = "xnone" \) -a \( "x$optipng" = xyes \); then
AC_MSG_ERROR([*** You must instsll the optipng utility before building with --optipng.]) AC_MSG_ERROR([*** You must install the optipng utility before building with --optipng.])
else else
echo "****************************************" echo "****************************************"
echo "*** optipng support enabled ***" echo "*** optipng support enabled ***"