Import curl 7.43

This is a simple import of curl 7.43.
The only change from the official release is the fact that the
Android.mk was removed to avoid build error trying to parse it.

BUG: 22347561

Change-Id: I52ef6798d30b25d22d1f62770d571adec8bcf4d5
diff --git a/buildconf.bat b/buildconf.bat
new file mode 100644
index 0000000..dc55fab
--- /dev/null
+++ b/buildconf.bat
@@ -0,0 +1,38 @@
+@echo off
+REM
+REM
+REM This batch file must be used to set up a git tree to build on
+REM systems where there is no autotools support (i.e. Microsoft).
+REM
+REM This file is not included nor needed for curl's release
+REM archives, neither for curl's daily snapshot archives.
+
+if exist GIT-INFO goto start_doing
+ECHO ERROR: This file shall only be used with a curl git tree checkout.
+goto end_all
+:start_doing
+
+REM create tool_hugehelp.c
+if not exist src\tool_hugehelp.c.cvs goto end_hugehelp_c
+copy /Y src\tool_hugehelp.c.cvs src\tool_hugehelp.c
+:end_hugehelp_c
+
+REM create Makefile
+if not exist Makefile.dist goto end_makefile
+copy /Y Makefile.dist Makefile
+:end_makefile
+
+REM create curlbuild.h
+if not exist include\curl\curlbuild.h.dist goto end_curlbuild_h
+copy /Y include\curl\curlbuild.h.dist include\curl\curlbuild.h
+:end_curlbuild_h
+
+REM setup c-ares git tree
+if not exist ares\buildconf.bat goto end_c_ares
+cd ares
+call buildconf.bat
+cd ..
+:end_c_ares
+
+:end_all
+