diff options
| author | Shoaib Meenai <smeenai@fb.com> | 2017-09-14 18:23:43 +0000 |
|---|---|---|
| committer | Shoaib Meenai <smeenai@fb.com> | 2017-09-14 18:23:43 +0000 |
| commit | 0a2af12aff46999f2d7547581b89630bbe908e76 (patch) | |
| tree | a719e08938c3b1ce27f984f9388251a90b4130e8 /CMakeLists.txt | |
| parent | 5f919fe349450b3da0e29611ae37f6a940179290 (diff) | |
[libc++] Prevent stale site configuration headers
If we define cmake macros that require a site config, and then undefine
all such macros, a stale site config header will be left behind.
Explicitly delete any generate site config if we don't need one to avoid
this.
Differential Revision: https://reviews.llvm.org/D36720
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@313284 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 66db8626f..e402dae66 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -615,9 +615,10 @@ if (DEFINED WIN32 AND LIBCXX_ENABLE_STATIC AND NOT LIBCXX_ENABLE_SHARED) config_define(ON _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) endif() +set(site_config_path "${LIBCXX_BINARY_DIR}/__config_site") if (LIBCXX_NEEDS_SITE_CONFIG) configure_file("include/__config_site.in" - "${LIBCXX_BINARY_DIR}/__config_site" + "${site_config_path}" @ONLY) # Provide the config definitions by included the generated __config_site @@ -627,6 +628,11 @@ if (LIBCXX_NEEDS_SITE_CONFIG) else() add_compile_flags("-include ${LIBCXX_BINARY_DIR}/__config_site") endif() +else() + if (EXISTS "${site_config_path}") + message(STATUS "Removing stale site configuration ${site_config_path}") + file(REMOVE "${site_config_path}") + endif() endif() #=============================================================================== |