ENH: add a virtual CreateMakeVariable to shorten makefile variables for borland make

Source/cmBorlandMakefileGenerator.cxx

@@ -23,7 +23,7 @@
 #include "cmCacheManager.h"
 #include "cmGeneratedFileStream.h"
 #include "windows.h"
-
+#include <stdio.h>
 
 cmBorlandMakefileGenerator::cmBorlandMakefileGenerator()
 {
@@ -235,8 +235,8 @@ void cmBorlandMakefileGenerator::OutputSharedLibraryRule(std::ostream& fout,
   target = cmSystemTools::EscapeSpaces(target.c_str());
   libpath = cmSystemTools::EscapeSpaces(libpath.c_str());
   std::string depend = "$(";
-  depend += name;
-  depend += "_SRC_OBJS) $(" + std::string(name) + "_DEPEND_LIBS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS");
+  depend += ") $(" + this->CreateMakeVariable(name, "_DEPEND_LIBS") + ")";
   std::string command = "$(CMAKE_CXX_COMPILER) -tWD $(CMAKE_SHLIB_CFLAGS) $(CMAKE_LINKER_FLAGS) @&&|\n";
   // must be executable name
   command += "-e";
@@ -248,8 +248,8 @@ void cmBorlandMakefileGenerator::OutputSharedLibraryRule(std::ostream& fout,
   // then the linker options -L and libraries (any other order will fail!)
   command += linklibs.str();
   delete [] linklibs.str();
-  // then list of object files
-  command += " $(" + std::string(name) + "_SRC_OBJS) ";
+  // then list of object files 
+  command += " $(" + this->CreateMakeVariable(name, "_SRC_OBJS") + ") ";
   std::string command2 = "implib -w ";
   command2 += libpath + " " + target;
   const std::vector<cmSourceFile>& sources = t.GetSourceFiles();
@@ -293,7 +293,7 @@ void cmBorlandMakefileGenerator::OutputStaticLibraryRule(std::ostream& fout,
   cmSystemTools::ConvertToWindowsSlashes(target);
   target = cmSystemTools::EscapeSpaces(target.c_str());
   std::string depend = "$(";
-  depend += std::string(name) + "_SRC_OBJS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS") + ") ";
   std::string command = "tlib  @&&|\n\t /p512 /a ";
   command += target;
   command += " ";
@@ -303,7 +303,7 @@ void cmBorlandMakefileGenerator::OutputStaticLibraryRule(std::ostream& fout,
   deleteCommand += target;
 
   command += " $(";
-  command += std::string(name) + "_SRC_OBJS_QUOTED)";
+  command += this->CreateMakeVariable(name, "_SRC_OBJS_QUOTED") + ")";
   command += "\n|\n";
   std::string comment = "rule to build static library: ";
   comment += name;
@@ -329,7 +329,8 @@ void cmBorlandMakefileGenerator::OutputExecutableRule(std::ostream& fout,
   cmSystemTools::ConvertToWindowsSlashes(target);
   target = cmSystemTools::EscapeSpaces(target.c_str());
   std::string depend = "$(";
-  depend += std::string(name) + "_SRC_OBJS) $(" + std::string(name) + "_DEPEND_LIBS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS") + ") $(" + 
+    this->CreateMakeVariable(name, "_DEPEND_LIBS") + ")";
   std::string command = 
     "$(CMAKE_CXX_COMPILER) ";
   command += " $(CMAKE_LINKER_FLAGS) -e" + target;
@@ -350,7 +351,7 @@ void cmBorlandMakefileGenerator::OutputExecutableRule(std::ostream& fout,
   linklibs << std::ends;
   command += linklibs.str();
   delete [] linklibs.str();
-  command += " $(" + std::string(name) + "_SRC_OBJS) ";
+  command += " $(" +  this->CreateMakeVariable(name, "_SRC_OBJS") + ")";
   
   std::string comment = "rule to build executable: ";
   comment += name;
@@ -404,3 +405,54 @@ bool cmBorlandMakefileGenerator::SamePath(const char* path1, const char* path2)
 }
 
 
+// borland make does not support variables that are longer than 32
+// so use this function to rename any long ones
+std::string cmBorlandMakefileGenerator::CreateMakeVariable(const char* s, const char* s2)
+{
+  std::string unmodified = s;
+  unmodified += s2;
+  // see if th
+  if(m_MakeVariableMap.count(unmodified))
+    {
+    return m_MakeVariableMap[unmodified];
+    }
+  std::string ret = unmodified;
+  // if the string is greater the 32 chars it is an invalid vairable name
+  // for borland make
+  if(ret.size() > 32)
+    {
+    std::string str1 = s;
+    std::string str2 = s2;
+    // we must shorten the combined string by 4 charactors
+    // keep no more than 24 charactors from the second string
+    if(str2.size() > 24)
+      {
+      str2 = str2.substr(0, 24);
+      }
+    if(str1.size() + str2.size() > 27)
+      {
+      str1 = str1.substr(0, 27 - str2.size());
+      }
+    char buffer[5];
+    int i = 0;
+    sprintf(buffer, "%04d", i);
+    ret = str1 + str2 + buffer;
+    while(m_ShortMakeVariableMap.count(ret) && i < 1000)
+      {
+      ++i;
+      sprintf(buffer, "%04d", i);
+      ret = str1 + str2 + buffer;
+      }
+    if(i == 1000)
+      {
+      cmSystemTools::Error("Borland makefile varible length too long");
+      return unmodified;
+      }
+    // once an unused variable is found 
+    m_ShortMakeVariableMap[ret] = "1";
+    }
+  // always make an entry into the unmodified to varible map
+  m_MakeVariableMap[unmodified] = ret;
+  return ret;
+}
+

Source/cmBorlandMakefileGenerator.h

@@ -61,6 +61,9 @@ protected:
   virtual std::string GetOutputExtension(const char* sourceExtension); 
   ///! return true if the two paths are the same (checks short paths)
   virtual bool SamePath(const char* path1, const char* path2);
+  virtual std::string CreateMakeVariable(const char* s, const char* s2);
+  std::map<cmStdString, cmStdString> m_MakeVariableMap;
+  std::map<cmStdString, cmStdString> m_ShortMakeVariableMap;
 };
 
 #endif

Source/cmNMakeMakefileGenerator.cxx

@@ -420,8 +420,8 @@ void cmNMakeMakefileGenerator::OutputSharedLibraryRule(std::ostream& fout,
 {
   std::string target = m_LibraryOutputPath + name + m_SharedLibraryExtension;
   std::string depend = "$(";
-  depend += name;
-  depend += "_SRC_OBJS) $(" + std::string(name) + "_DEPEND_LIBS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS");
+  depend += ") $(" + this->CreateMakeVariable(name, "_DEPEND_LIBS") + ")";
 
   // Need to get the definition here because this value might have
   // trailing space (since it is directly prepended to the filename)
@@ -442,7 +442,7 @@ void cmNMakeMakefileGenerator::OutputSharedLibraryRule(std::ostream& fout,
   std::string dllpath = m_LibraryOutputPath +  std::string(name) + m_SharedLibraryExtension;
   command += cmSystemTools::EscapeSpaces(dllpath.c_str());
 
-  command += " $(" + std::string(name) + "_SRC_OBJS) ";
+  command += " $(" + this->CreateMakeVariable(name, "_SRC_OBJS") + ") ";
 
   std::strstream linklibs;
   this->OutputLinkLibraries(linklibs, name, t);
@@ -492,7 +492,7 @@ void cmNMakeMakefileGenerator::OutputStaticLibraryRule(std::ostream& fout,
 {
   std::string target = m_LibraryOutputPath + std::string(name) + m_StaticLibraryExtension;
   std::string depend = "$(";
-  depend += std::string(name) + "_SRC_OBJS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS") + ") ";
 
   // Need to get the definition here because this value might have
   // trailing space (since it is directly prepended to the filename)
@@ -506,7 +506,7 @@ void cmNMakeMakefileGenerator::OutputStaticLibraryRule(std::ostream& fout,
   command += cmSystemTools::EscapeSpaces(libpath.c_str());
 
   command += " $(";
-  command += std::string(name) + "_SRC_OBJS)";
+  command += this->CreateMakeVariable(name, "_SRC_OBJS") + ")";
   command += "\n<<\n";
 
   std::string comment = "rule to build static library: ";
@@ -532,10 +532,11 @@ void cmNMakeMakefileGenerator::OutputExecutableRule(std::ostream& fout,
   std::string target = m_ExecutableOutputPath + name;
   target += m_ExecutableExtension;
   std::string depend = "$(";
-  depend += std::string(name) + "_SRC_OBJS) $(" + std::string(name) + "_DEPEND_LIBS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS") + ") $(" + 
+    this->CreateMakeVariable(name, "_DEPEND_LIBS") +  ")";
   std::string command = 
     "$(CMAKE_CXX_COMPILER) $(CMAKE_CXX_FLAGS) ";
-  command += "$(" + std::string(name) + "_SRC_OBJS) ";
+  command += "$(" + this->CreateMakeVariable(name, "_SRC_OBJS") + ") ";
   std::string path = m_ExecutableOutputPath + name + m_ExecutableExtension;
 
   // Need to get the definition here because this value might have

Source/cmUnixMakefileGenerator.cxx

@@ -363,36 +363,36 @@ void cmUnixMakefileGenerator::OutputTargetRules(std::ostream& fout)
     std::vector<cmSourceFile> classes = l->second.GetSourceFiles();
     if (classes.begin() != classes.end())
       {
-	fout << l->first << "_SRC_OBJS = ";
-	for(std::vector<cmSourceFile>::iterator i = classes.begin(); 
-	    i != classes.end(); i++)
-	  {
-	    if(!i->IsAHeaderFileOnly())
-	      {
-              std::string outExt(this->GetOutputExtension(i->GetSourceExtension().c_str()));
-              if(outExt.size())
-                {
-                fout << "\\\n" << this->ConvertToNativePath(i->GetSourceName().c_str())
-                     << outExt.c_str() << " ";
-                }
-              }
-	  }
-	fout << "\n\n";
-	fout << l->first << "_SRC_OBJS_QUOTED = ";
-	for(std::vector<cmSourceFile>::iterator i = classes.begin(); 
-	    i != classes.end(); i++)
-	  {
-	    if(!i->IsAHeaderFileOnly())
-	      {
-              std::string outExt(this->GetOutputExtension(i->GetSourceExtension().c_str()));
-              if(outExt.size())
-                {
-                fout << "\\\n\"" << this->ConvertToNativePath(i->GetSourceName().c_str())
-                     << outExt.c_str() << "\" ";
-                }
-              }
-	  }
-	fout << "\n\n";
+      fout << this->CreateMakeVariable(l->first.c_str(), "_SRC_OBJS") << " = ";
+      for(std::vector<cmSourceFile>::iterator i = classes.begin(); 
+          i != classes.end(); i++)
+        {
+        if(!i->IsAHeaderFileOnly())
+          {
+          std::string outExt(this->GetOutputExtension(i->GetSourceExtension().c_str()));
+          if(outExt.size())
+            {
+            fout << "\\\n" << this->ConvertToNativePath(i->GetSourceName().c_str())
+                 << outExt.c_str() << " ";
+            }
+          }
+        }
+      fout << "\n\n";
+      fout << this->CreateMakeVariable(l->first.c_str(), "_SRC_OBJS_QUOTED") << " = ";
+      for(std::vector<cmSourceFile>::iterator i = classes.begin(); 
+          i != classes.end(); i++)
+        {
+        if(!i->IsAHeaderFileOnly())
+          {
+          std::string outExt(this->GetOutputExtension(i->GetSourceExtension().c_str()));
+          if(outExt.size())
+            {
+            fout << "\\\n\"" << this->ConvertToNativePath(i->GetSourceName().c_str())
+                 << outExt.c_str() << "\" ";
+            }
+          }
+        }
+      fout << "\n\n";
       }
     }
   fout << "CLEAN_OBJECT_FILES = ";
@@ -402,7 +402,8 @@ void cmUnixMakefileGenerator::OutputTargetRules(std::ostream& fout)
     std::vector<cmSourceFile> classes = l->second.GetSourceFiles();
     if (classes.begin() != classes.end())
       {
-      fout << "$(" << l->first << "_SRC_OBJS) ";
+      fout << "$(" << this->CreateMakeVariable(l->first.c_str(), "_SRC_OBJS")
+           << ") ";
       }
     }
   fout << "\n\n";
@@ -600,8 +601,8 @@ void cmUnixMakefileGenerator::OutputSharedLibraryRule(std::ostream& fout,
 {
   std::string target = m_LibraryOutputPath + "lib" + name + "$(SHLIB_SUFFIX)";
   std::string depend = "$(";
-  depend += name;
-  depend += "_SRC_OBJS) $(" + std::string(name) + "_DEPEND_LIBS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS");
+  depend += ") $(" + this->CreateMakeVariable(name, "_DEPEND_LIBS") + ")";
   std::string command = "$(RM) lib";
   command += name;
   command += "$(SHLIB_SUFFIX)";
@@ -609,7 +610,7 @@ void cmUnixMakefileGenerator::OutputSharedLibraryRule(std::ostream& fout,
     "$(CMAKE_SHLIB_BUILD_FLAGS) $(CMAKE_CXX_FLAGS) -o \\\n";
   command2 += "\t  ";
   command2 += m_LibraryOutputPath + "lib" + std::string(name) + "$(SHLIB_SUFFIX) \\\n";
-  command2 += "\t  $(" + std::string(name) + "_SRC_OBJS) ";
+  command2 += "\t  $(" + this->CreateMakeVariable(name, "_SRC_OBJS") + ") ";
   std::strstream linklibs;
   this->OutputLinkLibraries(linklibs, name, t);
   linklibs << std::ends;
@@ -635,13 +636,14 @@ void cmUnixMakefileGenerator::OutputModuleLibraryRule(std::ostream& fout,
 {
   std::string target = m_LibraryOutputPath + "lib" + std::string(name) + "$(MODULE_SUFFIX)";
   std::string depend =  "$(";
-  depend += std::string(name) + "_SRC_OBJS) $(" + std::string(name) + "_DEPEND_LIBS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS") 
+    + ") $(" + this->CreateMakeVariable(name, "_DEPEND_LIBS") + ")";
   std::string command = "$(RM) lib" + std::string(name) + "$(MODULE_SUFFIX)";
   std::string command2 = "$(CMAKE_CXX_COMPILER)  $(CMAKE_MODULE_LINK_FLAGS) "
     "$(CMAKE_MODULE_BUILD_FLAGS) $(CMAKE_CXX_FLAGS) -o \\\n";
   command2 += "\t  ";
   command2 += m_LibraryOutputPath + "lib" + std::string(name) + "$(MODULE_SUFFIX) \\\n";
-  command2 += "\t  $(" + std::string(name) + "_SRC_OBJS) ";
+  command2 += "\t  $(" + this->CreateMakeVariable(name, "_SRC_OBJS") + ") ";
   std::strstream linklibs;
   this->OutputLinkLibraries(linklibs, std::string(name).c_str(), t);
   linklibs << std::ends;
@@ -668,13 +670,13 @@ void cmUnixMakefileGenerator::OutputStaticLibraryRule(std::ostream& fout,
 {
   std::string target = m_LibraryOutputPath + "lib" + std::string(name) + ".a";
   std::string depend = "$(";
-  depend += std::string(name) + "_SRC_OBJS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS") + ")";
   std::string command = "$(CMAKE_AR) $(CMAKE_AR_ARGS) ";
   command += m_LibraryOutputPath;
   command += "lib";
   command += name;
   command += ".a $(";
-  command += std::string(name) + "_SRC_OBJS)";
+  command += this->CreateMakeVariable(name, "_SRC_OBJS") + ")";
   std::string command2 = "$(CMAKE_RANLIB) ";
   command2 += m_LibraryOutputPath;
   command2 += "lib";
@@ -702,10 +704,11 @@ void cmUnixMakefileGenerator::OutputExecutableRule(std::ostream& fout,
 {
   std::string target = m_ExecutableOutputPath + name;
   std::string depend = "$(";
-  depend += std::string(name) + "_SRC_OBJS) $(" + std::string(name) + "_DEPEND_LIBS)";
+  depend += this->CreateMakeVariable(name, "_SRC_OBJS") 
+    + ") $(" + this->CreateMakeVariable(name, "_DEPEND_LIBS") + ")";
   std::string command = 
     "$(CMAKE_CXX_COMPILER) $(CMAKE_SHLIB_LINK_FLAGS) $(CMAKE_CXX_FLAGS) ";
-  command += "$(" + std::string(name) + "_SRC_OBJS) ";
+  command += "$(" + this->CreateMakeVariable(name, "_SRC_OBJS") + ") ";
   std::strstream linklibs;
   this->OutputLinkLibraries(linklibs, 0, t);
   linklibs << std::ends;
@@ -785,7 +788,7 @@ void cmUnixMakefileGenerator::OutputDependLibs(std::ostream& fout)
         || (l->second.GetType() == cmTarget::EXECUTABLE)
         || (l->second.GetType() == cmTarget::WIN32_EXECUTABLE))
       {
-      fout << l->first << "_DEPEND_LIBS = ";
+      fout << this->CreateMakeVariable(l->first.c_str(), "_DEPEND_LIBS") << " = ";
       
       // A library should not depend on itself!
       emitted.insert(l->first);

Source/cmUnixMakefileGenerator.h

@@ -155,7 +155,12 @@ protected:
   void SetLibraryPrefix(const char* e) { m_LibraryPrefix = e;}
   virtual std::string ConvertToNativePath(const char* s) { return s;  }
   std::string CreateTargetRules(const cmTarget &target,
-                                                         const char* targetName);
+                                const char* targetName);
+  virtual std::string CreateMakeVariable(const char* s, const char* s2)
+    {
+      return std::string(s) + std::string(s2);
+    }
+  
 protected:
   std::string m_ExecutableOutputPath;
   std::string m_LibraryOutputPath;