source: rtems/scripts/gcc3newlib/mkspec.in @ 0a80a16

#!/bin/sh 
#
#  Usage: mkspec CPU
#

RTEMS_DIR=`dirname $0`/@top_srcdir@

CFG=../setup.cache

usage()
{
  echo "$0 [options] <target_alias>"
  echo "  options:"
  echo "    -cfg <setup.cache>"
  echo "    -a <alternate specs.in>"
  exit 1 ;
}

specsrc=${RTEMS_DIR}/gcc3newlib/gccnewlib.spec.in

while test $# -ge 2; do
case $1 in
-cfg) 
  shift
  CFG=$1
  shift
  ;;
-a)        # alternate specs file
  shift
  specsrc=$1
  shift
  ;;
-*)
  echo "invalid option $1";
  usage
  ;;
esac
done

if test ! $# -eq 1;
then
  echo "Invalid number of arguments"
  usage
fi

# target to build for
target_alias=$1

. ./$CFG

patchn=-1
if test -n "${gcc3_patch_version}"; then
patchn=`expr $patchn + 1`
PATCH1="Patch${patchn}: gcc-${gcc3_version}-rtems-${gcc3_patch_version}.diff"
PATCH2="%patch${patchn} -p0"
fi

if test -n "${gcc3newlib_patch_version}"; then
patchn=`expr $patchn + 1`
PATCH3="Patch${patchn}: newlib-${gcc3newlib_version}-rtems-${gcc3newlib_patch_version}.diff"
PATCH4="%patch${patchn} -p0"
fi

# note that the variables in the gcc3newlib directory are actually the same
sed -e "s,@PATCH1\@,${PATCH1}," \
    -e "s,@PATCH2\@,${PATCH2}," \
    -e "s,@PATCH3\@,${PATCH3}," \
    -e "s,@PATCH4\@,${PATCH4}," \
    -e "s%@Release\@%${gcc3newlib_rpm_release}%g" \
    -e "s%@target_alias\@%${target_alias}%g" \
    -e "s%@prefix\@%@prefix@%g" \
    -e "s,@rpmprefix\@,@rpmprefix@,g" \
    -e "s%@rpmgroup\@%@rpmgroup@%g" \
    -e "s%@osversion\@%@osversion@%g" \
    -e "s,@rpm_build_root\@,${rpm_build_root},g" \
    -e "s%@gcc_version\@%${gcc3_version}%g" \
    -e "s%@gcc_patch_version\@%${gcc3_patch_version}%g" \
    -e "s%@gcc_suffix\@%${gcc3_suffix}%g" \
    -e "s%@newlib_version\@%${gcc3newlib_version}%g" \
    -e "s%@newlib_patch_version\@%${gcc3newlib_patch_version}%g" \
    -e "s%@newlib_suffix\@%${gcc3newlib_suffix}%g" \
< ${specsrc}