From 1269df2e3ba559c5367cb826d0414b2198102514 Mon Sep 17 00:00:00 2001
From: Jakub Zakrzewski <jzakrzewski@e2ebridge.com>
Date: Fri, 15 Aug 2014 14:24:25 +0200
Subject: [PATCH] Cmake: Don't check for all headers each time

One header at a time is the right way. Apart from that the output on
windows goes from:
...
-- Looking for include files I:/src/libssh2-1.4.3/include/libssh2.h, ws2tcpip.h
-- Looking for include files I:/src/libssh2-1.4.3/include/libssh2.h, ws2tcpip.h
- found
-- Looking for 3 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., wins
ock2.h
-- Looking for 3 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., wins
ock2.h - found
-- Looking for 4 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., stdi
o.h
-- Looking for 4 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., stdi
o.h - found
-- Looking for 5 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., wind
ows.h
-- Looking for 5 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., wind
ows.h - found
-- Looking for 6 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., wins
ock.h
-- Looking for 6 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., wins
ock.h - found
-- Looking for 7 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., sys/
filio.h
-- Looking for 7 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., sys/
filio.h - not found
-- Looking for 7 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., sys/
ioctl.h
-- Looking for 7 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., sys/
ioctl.h - not found
-- Looking for 7 include files I:/src/libssh2-1.4.3/include/libssh2.h, ..., sys/
resource.h
...

To much nicer:
...
-- Looking for ws2tcpip.h
-- Looking for ws2tcpip.h - found
-- Looking for winsock2.h
-- Looking for winsock2.h - found
-- Looking for stdio.h
-- Looking for stdio.h - found
-- Looking for windows.h
-- Looking for windows.h - found
-- Looking for winsock.h
-- Looking for winsock.h - found
-- Looking for sys/filio.h
-- Looking for sys/filio.h - not found
-- Looking for sys/ioctl.h
-- Looking for sys/ioctl.h - not found
-- Looking for sys/resource.h
---
 CMake/Macros.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMake/Macros.cmake b/CMake/Macros.cmake
index 54398f4a2..80a88339f 100644
--- a/CMake/Macros.cmake
+++ b/CMake/Macros.cmake
@@ -12,7 +12,7 @@ endmacro(CHECK_LIBRARY_EXISTS_CONCAT)
 
 # Check if header file exists and add it to the list.
 macro(CHECK_INCLUDE_FILE_CONCAT FILE VARIABLE)
-  check_include_files("${CURL_INCLUDES};${FILE}" ${VARIABLE})
+  check_include_file("${FILE}" ${VARIABLE})
   if(${VARIABLE})
     set(CURL_INCLUDES ${CURL_INCLUDES} ${FILE})
     set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -D${VARIABLE}")