back port r1834495 (python3 support).

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/branches/1.6.x@1846510 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 27 insertions, 22 deletions

diff --git a/build/buildcheck.sh b/build/buildcheck.sh
index ab5df445c..76ff8cef2 100755
--- a/build/buildcheck.sh
+++ b/build/buildcheck.sh
@@ -4,14 +4,14 @@ echo "buildconf: checking installation..."
 res=0
 
 # any python
-python=`build/PrintPath python`
+python=${PYTHON-`build/PrintPath python3 python2 python`}
 if test -z "$python"; then
   echo "buildconf: python not found."
   echo "           You need python installed"
   echo "           to build APR from SVN."
   res=1
 else
-  py_version=`python -c 'import sys; print sys.version' 2>&1|sed 's/ .*//;q'`
+  py_version=`$python -c 'import sys; print(sys.version)' 2>&1|sed 's/ .*//;q'`
   echo "buildconf: python version $py_version (ok)"
 fi
 
diff --git a/build/gen-build.py b/build/gen-build.py
index aa94c33f3..70d88ba9a 100755
--- a/build/gen-build.py
+++ b/build/gen-build.py
@@ -10,7 +10,10 @@
 
 
 import os
-import ConfigParser
+try:
+  import configparser
+except ImportError:
+  import ConfigParser as configparser
 import getopt
 import string
 import glob
@@ -36,7 +39,7 @@ MAKE_PLATFORMS = [
 
 
 def main():
-  parser = ConfigParser.ConfigParser()
+  parser = configparser.ConfigParser()
   parser.read('build.conf')
 
   if parser.has_option('options', 'dsp'):
@@ -62,7 +65,7 @@ def main():
   # write out the platform-independent files
   files = get_files(parser.get('options', 'paths'))
   objects, dirs = write_objects(f, legal_deps, h_deps, files)
-  f.write('\nOBJECTS_all = %s\n\n' % string.join(objects))
+  f.write('\nOBJECTS_all = %s\n\n' % " ".join(objects))
 
   # for each platform and each subdirectory holding platform-specific files,
   # write out their compilation rules, and an OBJECT_<subdir>_<plat> symbol.
@@ -86,11 +89,11 @@ def main():
           inherit_files[-1] = inherit_files[-1][:-2] + '.lo'
           # replace the \\'s with /'s
           inherit_line = '/'.join(inherit_files)
-          if not inherit_parent.has_key(inherit_files[0]):
+          if inherit_files[0] not in inherit_parent:
             inherit_parent[inherit_files[0]] = []
           inherit_parent[inherit_files[0]].append(inherit_line)
 
-    for subdir in string.split(parser.get('options', 'platform_dirs')):
+    for subdir in parser.get('options', 'platform_dirs').split():
       path = '%s/%s' % (subdir, platform)
       if not os.path.exists(path):
         # this subdir doesn't have a subdir for this platform, so we'll
@@ -106,7 +109,7 @@ def main():
       files = get_files(path + '/*.c')
       objects, _unused = write_objects(f, legal_deps, h_deps, files)
 
-      if inherit_parent.has_key(subdir):
+      if subdir in inherit_parent:
         objects = objects + inherit_parent[subdir]
 
       symname = 'OBJECTS_%s_%s' % (subdir, platform)
@@ -114,7 +117,7 @@ def main():
       objects.sort()
 
       # and write the symbol for the whole group
-      f.write('\n%s = %s\n\n' % (symname, string.join(objects)))
+      f.write('\n%s = %s\n\n' % (symname, " ".join(objects)))
 
       # and include that symbol in the group
       group.append('$(%s)' % symname)
@@ -122,18 +125,18 @@ def main():
     group.sort()
 
     # write out a symbol which contains the necessary files
-    f.write('OBJECTS_%s = %s\n\n' % (platform, string.join(group)))
+    f.write('OBJECTS_%s = %s\n\n' % (platform, " ".join(group)))
 
-  f.write('HEADERS = $(top_srcdir)/%s\n\n' % string.join(headers, ' $(top_srcdir)/'))
-  f.write('SOURCE_DIRS = %s $(EXTRA_SOURCE_DIRS)\n\n' % string.join(dirs.keys()))
+  f.write('HEADERS = $(top_srcdir)/%s\n\n' % ' $(top_srcdir)/'.join(headers))
+  f.write('SOURCE_DIRS = %s $(EXTRA_SOURCE_DIRS)\n\n' % " ".join(dirs.keys()))
 
   if parser.has_option('options', 'modules'):
     modules = parser.get('options', 'modules')
 
-    for mod in string.split(modules):
+    for mod in modules.split():
       files = get_files(parser.get(mod, 'paths'))
       objects, _unused = write_objects(f, legal_deps, h_deps, files)
-      flat_objects = string.join(objects)
+      flat_objects = " ".join(objects)
       f.write('OBJECTS_%s = %s\n' % (mod, flat_objects))
 
       if parser.has_option(mod, 'target'):
@@ -153,9 +156,9 @@ def main():
       d = os.path.dirname(d)
 
   # Sort so 'foo' is before 'foo/bar'
-  keys = alldirs.keys()
+  keys = list(alldirs.keys())
   keys.sort()
-  f.write('BUILD_DIRS = %s\n\n' % string.join(keys))
+  f.write('BUILD_DIRS = %s\n\n' % " ".join(keys))
 
   f.write('.make.dirs: $(srcdir)/build-outputs.mk\n' \
           '\t@for d in $(BUILD_DIRS); do test -d $$d || mkdir $$d; done\n' \
@@ -177,12 +180,12 @@ def write_objects(f, legal_deps, h_deps, files):
 
     # what headers does this file include, along with the implied headers
     deps = extract_deps(file, legal_deps)
-    for hdr in deps.keys():
+    for hdr in list(deps.keys()):
       deps.update(h_deps.get(hdr, {}))
 
-    vals = deps.values()
+    vals = list(deps.values())
     vals.sort()
-    f.write('%s: %s .make.dirs %s\n' % (obj, file, string.join(vals)))
+    f.write('%s: %s .make.dirs %s\n' % (obj, file, " ".join(vals)))
 
   objects.sort()
 
@@ -210,7 +213,7 @@ def resolve_deps(header_deps):
     for hdr, deps in header_deps.items():
       # print hdr, deps
       start = len(deps)
-      for dep in deps.keys():
+      for dep in list(deps.keys()):
         deps.update(header_deps.get(dep, {}))
       if len(deps) != start:
         altered = 1
@@ -220,7 +223,7 @@ def clean_path(path):
 
 def get_files(patterns):
   files = [ ]
-  for pat in string.split(patterns):
+  for pat in patterns.split():
     files.extend(map(clean_path, glob.glob(pat)))
   files.sort()
   return files
diff --git a/buildconf b/buildconf
index b70fa53ec..fa52bd11b 100755
--- a/buildconf
+++ b/buildconf
@@ -112,8 +112,10 @@ ${AUTOCONF:-autoconf} $verbose
 # Remove autoconf 2.5x's cache directory
 rm -rf autom4te*.cache
 
+PYTHON=${PYTHON-`build/PrintPath python3 python2 python`}
+
 echo "buildconf: generating 'make' outputs ..."
-build/gen-build.py $verbose make
+${PYTHON} build/gen-build.py $verbose make
 
 # Create RPM Spec file
 if [ -f `which cut` ]; then