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cmSystemTools: Hard-code try_compile results for Windows

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All Windows platforms offer `environ` in `stdlib.h` and do
not have `unsetenv`.
This commit is contained in:
Brad King
2020-06-03 07:39:45 -04:00
parent d350d4668a
commit 2bc89f1a03
1 changed files with 9 additions and 4 deletions
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13
CMakeLists.txt
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@@ -711,10 +711,15 @@ if(NOT CMake_TEST_EXTERNAL_CMAKE)
include(${CMake_SOURCE_DIR}/Tests/CMakeInstall.cmake)
endif()
# no clue why we are testing for this here
include(CheckSymbolExists)
CHECK_SYMBOL_EXISTS(unsetenv "stdlib.h" HAVE_UNSETENV)
CHECK_SYMBOL_EXISTS(environ "stdlib.h" HAVE_ENVIRON_NOT_REQUIRE_PROTOTYPE)
# Checks for cmSystemTools.
if(WIN32)
set(HAVE_UNSETENV 0)
set(HAVE_ENVIRON_NOT_REQUIRE_PROTOTYPE 1)
else()
include(CheckSymbolExists)
CHECK_SYMBOL_EXISTS(unsetenv "stdlib.h" HAVE_UNSETENV)
CHECK_SYMBOL_EXISTS(environ "stdlib.h" HAVE_ENVIRON_NOT_REQUIRE_PROTOTYPE)
endif()
endif()
# CMAKE_TESTS_CDASH_SERVER: CDash server used by CMake/Tests.