llvm-6502/projects/sample/autoconf/AutoRegen.sh
Reid Spencer 30ea4787ea Have the AutoRegen.sh script prompt the user for the LLVM src and obj
directories if it can't find them. Then, replace those values into the
configure.ac script and pass them to the LLVM_CONFIG_PROJECT so that the
values become the default for llvm_src and llvm_obj variables. In this way
the user is required to input this exactly once, and the scripts take it
from there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27798 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-18 06:27:47 +00:00

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#!/bin/sh
die () {
echo "$@" 1>&2
exit 1
}
test -d autoconf && test -f autoconf/configure.ac && cd autoconf
test -f configure.ac || die "Can't find 'autoconf' dir; please cd into it first"
autoconf --version | egrep '2\.5[0-9]' > /dev/null
if test $? -ne 0 ; then
die "Your autoconf was not detected as being 2.5x"
fi
cwd=`pwd`
if test -d ../../../autoconf/m4 ; then
cd ../../../autoconf/m4
llvm_m4=`pwd`
llvm_src_root=../../..
llvm_obj_root=../../..
cd $cwd
elif test -d ../../llvm/autoconf/m4 ; then
cd ../../llvm/autoconf/m4
llvm_m4=`pwd`
llvm_src_root=../..
llvm_obj_root=../..
cd $cwd
else
while true ; do
echo "LLVM source root not found."
read -p "Enter full path to LLVM source:"
if test -d "$REPLY/autoconf/m4" ; then
llvm_src_root="$REPLY"
llvm_m4="$REPLY/autoconf/m4"
read -p "Enter full path to LLVM objects (empty for same as source):"
if test -d "$REPLY" ; then
llvm_obj_root="$REPLY"
else
llvm_obj_root="$llvm_src_root"
fi
break
fi
done
fi
# Patch the LLVM_ROOT in configure.ac, if it needs it
cp configure.ac configure.bak
sed -e "s#^LLVM_SRC_ROOT=.*#LLVM_SRC_ROOT=\"$llvm_src_root\"#" \
-e "s#^LLVM_OBJ_ROOT=.*#LLVM_OBJ_ROOT=\"$llvm_obj_root\"#" configure.bak > configure.ac
echo "Regenerating aclocal.m4 with aclocal"
rm -f aclocal.m4
aclocal -I $llvm_m4 -I "$llvm_m4/.." || die "aclocal failed"
echo "Regenerating configure with autoconf 2.5x"
autoconf --warnings=all -o ../configure configure.ac || die "autoconf failed"
cd ..
exit 0