[libunwind] r255188 - Replace cmake check for printf with a check for fopen.

[Evgeniy Stepanov via cfe-commits]

Author: eugenis
Date: Wed Dec  9 18:47:08 2015
New Revision: 255188

URL: http://llvm.org/viewvc/llvm-project?rev=255188&view=rev
Log:
Replace cmake check for printf with a check for fopen.

Printf is a builtin, and the check fails with -Werror because of a clang
warning about an incompatible redeclaration.

Modified:
    libunwind/trunk/cmake/config-ix.cmake

Modified: libunwind/trunk/cmake/config-ix.cmake
URL: http://llvm.org/viewvc/llvm-project/libunwind/trunk/cmake/config-ix.cmake?rev=255188&r1=255187&r2=255188&view=diff
==============================================================================
--- libunwind/trunk/cmake/config-ix.cmake (original)
+++ libunwind/trunk/cmake/config-ix.cmake Wed Dec  9 18:47:08 2015
@@ -39,7 +39,7 @@ check_cxx_compiler_flag(/EHs-
 check_cxx_compiler_flag(/EHa-                 LIBUNWIND_HAS_NO_EHA_FLAG)
 check_cxx_compiler_flag(/GR-                  LIBUNWIND_HAS_NO_GR_FLAG)
 
-check_library_exists(c printf "" LIBUNWIND_HAS_C_LIB)
+check_library_exists(c fopen "" LIBUNWIND_HAS_C_LIB)
 check_library_exists(dl dladdr "" LIBUNWIND_HAS_DL_LIB)
 check_library_exists(pthread pthread_once "" LIBUNWIND_HAS_PTHREAD_LIB)