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include_directories: Fix handling of empty or space-only entries 

Since commit 0d46e9a0 (Store includes from the same include_directories
call together., 2013-01-20) we accidentally use such entries.  Fix the
code to drop them instead.  Update the IncludeDirectories test to cover
this case.

Reported-by: Christophe Giboudeaux <cgiboudeaux@gmx.com>
This commit is contained in:
Stephen Kelly 2013-05-20 12:25:59 +02:00 committed by Brad King
parent 5dd8c01429
commit b8cc6f4eba
3 changed files with 28 additions and 2 deletions
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11
Source/cmIncludeDirectoryCommand.cxx
View File

@ -116,14 +116,20 @@ void cmIncludeDirectoryCommand::GetIncludes(const std::string &arg,
{ {
std::string inc = arg.substr(lastPos,pos); std::string inc = arg.substr(lastPos,pos);
this->NormalizeInclude(inc); this->NormalizeInclude(inc);
if (!inc.empty())
{
incs.push_back(inc); incs.push_back(inc);
} }
}
lastPos = pos + 1; lastPos = pos + 1;
} }
std::string inc = arg.substr(lastPos); std::string inc = arg.substr(lastPos);
this->NormalizeInclude(inc); this->NormalizeInclude(inc);
if (!inc.empty())
{
incs.push_back(inc); incs.push_back(inc);
} }
}
void cmIncludeDirectoryCommand::NormalizeInclude(std::string &inc) void cmIncludeDirectoryCommand::NormalizeInclude(std::string &inc)
{ {
@ -133,6 +139,11 @@ void cmIncludeDirectoryCommand::NormalizeInclude(std::string &inc)
{ {
inc.assign(inc, b, 1+e-b); // copy the remaining substring inc.assign(inc, b, 1+e-b); // copy the remaining substring
} }
else
{
inc = "";
return;
}
if (!cmSystemTools::IsOff(inc.c_str())) if (!cmSystemTools::IsOff(inc.c_str()))
{ {

11
Tests/IncludeDirectories/CMakeLists.txt
View File

@ -58,3 +58,14 @@ get_property(propContentAfter DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
if (NOT propContentAfter STREQUAL "") if (NOT propContentAfter STREQUAL "")
message(SEND_ERROR "Clearing DIRECTORY property failed.") message(SEND_ERROR "Clearing DIRECTORY property failed.")
endif() endif()
add_library(empty_entry_test SHARED empty.cpp)
set_target_properties(empty_entry_test PROPERTIES INCLUDE_DIRECTORIES "")
include_directories(/one/two
" "
" "
)
get_target_property(incs empty_entry_test INCLUDE_DIRECTORIES)
if (NOT incs STREQUAL ";/one/two")
message(SEND_ERROR "Empty include_directories entry was not ignored.")
endif()

4
Tests/IncludeDirectories/empty.cpp Normal file
View File

@ -0,0 +1,4 @@
#ifdef _WIN32
__declspec(dllexport)
#endif
int empty() { return 0; }