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-rw-r--r--Modules/Platform/Darwin.cmake10
1 files changed, 6 insertions, 4 deletions
diff --git a/Modules/Platform/Darwin.cmake b/Modules/Platform/Darwin.cmake
index f592085..90d34ca 100644
--- a/Modules/Platform/Darwin.cmake
+++ b/Modules/Platform/Darwin.cmake
@@ -99,10 +99,12 @@ endif()
#----------------------------------------------------------------------------
# CMAKE_OSX_SYSROOT
-# Environment variable set by the user overrides our default.
-# Use the same environment variable that Xcode uses.
-if(NOT "x$ENV{SDKROOT}" STREQUAL "x" AND
- (NOT "x$ENV{SDKROOT}" MATCHES "/" OR IS_DIRECTORY "$ENV{SDKROOT}"))
+if(CMAKE_OSX_SYSROOT)
+ # Use the existing value without further computation to choose a default.
+ set(_CMAKE_OSX_SYSROOT_DEFAULT "${CMAKE_OSX_SYSROOT}")
+elseif(NOT "x$ENV{SDKROOT}" STREQUAL "x" AND
+ (NOT "x$ENV{SDKROOT}" MATCHES "/" OR IS_DIRECTORY "$ENV{SDKROOT}"))
+ # Use the value of SDKROOT from the environment.
set(_CMAKE_OSX_SYSROOT_DEFAULT "$ENV{SDKROOT}")
else()
# Find installed SDKs in either Xcode-4.3+ or pre-4.3 SDKs directory.