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ENH: use target as source if source is empty

This commit is contained in:
Sebastien Barre 2002-04-11 10:05:47 -04:00
parent e455a83969
commit 9b8926925b
2 changed files with 13 additions and 9 deletions
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20
Source/cmAddCustomCommandCommand.cxx
View File

@ -21,10 +21,10 @@
bool cmAddCustomCommandCommand::InitialPass(std::vector<std::string> const& argsIn)
{
/* Let's complain at the end of this function about the lack of a particular
arg. For the moment, let's say that SOURCE, COMMAND, TARGET are always
arg. For the moment, let's say that COMMAND, TARGET are always
required.
*/
if (argsIn.size() < 6)
if (argsIn.size() < 4)
{
this->SetError("called with wrong number of arguments.");
return false;
@ -106,15 +106,10 @@ bool cmAddCustomCommandCommand::InitialPass(std::vector<std::string> const& args
}
/* At this point we could complain about the lack of arguments.
For the moment, let's say that SOURCE, COMMAND, TARGET are always
For the moment, let's say that COMMAND, TARGET are always
required.
*/
if(source.empty())
{
this->SetError("Wrong syntax. Empty SOURCE.");
return false;
}
if(command.empty())
{
this->SetError("Wrong syntax. Empty COMMAND.");
@ -125,6 +120,15 @@ bool cmAddCustomCommandCommand::InitialPass(std::vector<std::string> const& args
this->SetError("Wrong syntax. Empty TARGET.");
return false;
}
// If source is empty, use target as source, so that this command
// can be used to just attach a commmand to a target
if(source.empty())
{
source = target;
}
m_Makefile->AddCustomCommand(source.c_str(),
command.c_str(),
command_args,

2
Source/cmAddCustomCommandCommand.h
View File

@ -86,7 +86,7 @@ public:
virtual const char* GetFullDocumentation()
{
return
"ADD_CUSTOM_COMMAND(SOURCE source COMMAND command TARGET target "
"ADD_CUSTOM_COMMAND([SOURCE source] COMMAND command TARGET target "
"[ARGS [args...]] [DEPENDS [depends...]] [OUTPUTS [outputs...]])\n"
"Add a custom command.";
}