From 178d0624120748a8625bb1169a9c65d2dfbc76aa Mon Sep 17 00:00:00 2001
From: Krisztian Litkey <krisztian.litkey@intel.com>
Date: Fri, 8 Jan 2016 12:43:09 +0200
Subject: [PATCH] nodejs: generate pkg-config file for node and install it
 during make install.

Signed-off-by: Krisztian Litkey <krisztian.litkey@intel.com>
Signed-off-by: Sudarsana Nagineni <sudarsana.nagineni@intel.com>
---
 Makefile  | 13 ++++++++-
 configure | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 109 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 02619fa..8363801 100644
--- a/Makefile
+++ b/Makefile
@@ -59,7 +59,7 @@ config.gypi: configure
 		$(error No $@, please run ./configure first)
 	fi
 
-install: all
+install: all install-pkgconfig
 	$(PYTHON) tools/install.py $@ '$(DESTDIR)' '$(PREFIX)'
 
 uninstall:
@@ -462,6 +462,17 @@ ifneq ($(haswrk), 0)
 	@exit 1
 endif
 
+install-pkgconfig:
+	if [ -n "$(LIBDIR)" ]; then \
+		LIBDIR="$(LIBDIR)"; \
+	else \
+		case $(ARCH) in \
+			*64) LIBDIR=$(PREFIX)/lib64;; \
+			*) LIBDIR=$(PREFIX)/lib;; \
+		esac; \
+	fi; \
+	mkdir -p $(DESTDIR)$$LIBDIR/pkgconfig && cp node.pc $(DESTDIR)$$LIBDIR/pkgconfig
+
 bench-net: all
 	@$(NODE) benchmark/common.js net
 
diff --git a/configure b/configure
index 0e83d8a..b9671c0 100755
--- a/configure
+++ b/configure
@@ -75,6 +75,11 @@ parser.add_option('--gdb',
     dest='gdb',
     help='add gdb support')
 
+parser.add_option('--libdir',
+    action='store',
+    dest='libdir',
+    help='select the libdir to install pkgconfig file')
+
 parser.add_option('--no-ifaddrs',
     action='store_true',
     dest='no_ifaddrs',
@@ -1125,9 +1130,16 @@ config = {
   'PYTHON': sys.executable,
 }
 
+# Save these before they're modified, for generating a pkg-config.
+pkgconfig = output
+pkgconfig['config'] = config
+
 if options.prefix:
   config['PREFIX'] = options.prefix
 
+if options.libdir:
+  config['LIBDIR'] = options.libdir
+
 config = '\n'.join(map('='.join, config.iteritems())) + '\n'
 
 write('config.mk',
@@ -1147,4 +1159,89 @@ gyp_args += args
 if warn.warned:
   warn('warnings were emitted in the configure phase')
 
+
+
+#
+# Generate pkg-config for node.
+#
+def pkgcfg_prefix(prefix, k):
+  if prefix:
+    return prefix + '_' + k
+  else:
+    return k
+
+def pkgcfg_list(f, prefix, l):
+  f.write(prefix + '=')
+  sep=''
+  for e in l:
+    if type(e) == type({}) or type(e) == type([]):
+      print('Cannot generate pkgconfig output for complex ' + prefix)
+      sys.exit(1)
+    f.write(sep + str(e))
+    sep = ', '
+  f.write('\n')
+
+def pkgcfg_simple(f, prefix, v):
+  f.write(prefix + '=' + str(v) + '\n')
+
+def pkgcfg_dict(f, prefix, d):
+  for k in d:
+    pkgcfg_object(f, pkgcfg_prefix(prefix, k), d[k])
+
+def pkgcfg_object(f, prefix, o):
+  if type(o) == type({}):
+    pkgcfg_dict(f, prefix, o)
+  elif type(o) == type([]):
+    pkgcfg_list(f, prefix, o)
+  else:
+    pkgcfg_simple(f, prefix, o)
+
+def pkgcfg_stdvars(f, o):
+  prefix = o['variables']['node_prefix']
+  arch = o['variables']['target_arch']
+  if options.libdir:
+    libdir = options.libdir
+  else:
+    libdir = prefix + '/lib64' if arch.find('64') else prefix + '/lib'
+  f.write('prefix=' + prefix + '\n')
+  f.write('libdir=' + libdir + '\n')
+  f.write('includedir=' + prefix + '/include\n')
+
+def pkgcfg_stdflags(f, o):
+  cmd = '/usr/bin/env python ' + os.getcwd() + '/tools/getnodeversion.py'
+  version = os.popen(cmd).read().strip()
+  defs = o['target_defaults']
+  cflgs = ''
+  sep = ''
+  for e in o['target_defaults']['cflags'] + o['target_defaults']['defines']:
+    cflgs = cflgs + sep + e
+    sep = ' '
+  cflgs = cflgs + sep + '-I${includedir} '
+  sep = ''
+  for e in defs['include_dirs']:
+    cflgs = cflgs + sep + '-I' + e
+    sep = ' '
+  libs = ''
+  sep = ''
+  for e in defs['libraries']:
+    libs = libs + sep + '-l' + e if e[0] != '-' else libs + sep + e
+    sep = ' '
+
+  f.write('Name: node\n')
+  f.write('Description: NodeJS, JavaScript runtime for native apps.\n')
+  f.write('Version: ' + version + '\n')
+  f.write('Cflags: ' + cflgs + '\n')
+  f.write('Libs: -L${libdir} ' + libs + '\n')
+
+def configure_pkgconfig(path, o):
+  f = open(path, 'w')
+  pkgcfg_stdvars(f, o)
+  f.write('\n')
+  pkgcfg_object(f, '', o)
+  f.write('\n')
+  pkgcfg_stdflags(f, o)
+
+configure_pkgconfig('node.pc', pkgconfig)
+
+# run gyp_node
 sys.exit(subprocess.call(gyp_args))
-- 
1.9.1