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-rw-r--r--Source/cmCoreTryCompile.cxx109
1 files changed, 100 insertions, 9 deletions
diff --git a/Source/cmCoreTryCompile.cxx b/Source/cmCoreTryCompile.cxx
index 1ae70350b..85e49a928 100644
--- a/Source/cmCoreTryCompile.cxx
+++ b/Source/cmCoreTryCompile.cxx
@@ -13,8 +13,11 @@
#include "cmake.h"
#include "cmCacheManager.h"
#include "cmGlobalGenerator.h"
+#include "cmExportTryCompileFileGenerator.h"
#include <cmsys/Directory.hxx>
+#include <assert.h>
+
int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
{
this->BinaryDirectory = argv[1].c_str();
@@ -39,7 +42,8 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
// is not used, so it matches regular command line parsing which has
// the program name as arg 0
for (; i < argv.size() && argv[i] != "COMPILE_DEFINITIONS" &&
- argv[i] != "OUTPUT_VARIABLE";
+ argv[i] != "OUTPUT_VARIABLE" &&
+ argv[i] != "LINK_LIBRARIES";
++i)
{
extraArgs++;
@@ -75,7 +79,8 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
{
extraArgs++;
for (i = i + 1; i < argv.size() && argv[i] != "CMAKE_FLAGS" &&
- argv[i] != "OUTPUT_VARIABLE";
+ argv[i] != "OUTPUT_VARIABLE" &&
+ argv[i] != "LINK_LIBRARIES";
++i)
{
extraArgs++;
@@ -85,6 +90,61 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
}
}
+ std::vector<cmTarget*> targets;
+ std::string libsToLink = " ";
+ bool useOldLinkLibs = true;
+ for (i = 3; i < argv.size(); ++i)
+ {
+ if (argv[i] == "LINK_LIBRARIES")
+ {
+ if ( argv.size() <= (i+1) )
+ {
+ this->Makefile->IssueMessage(cmake::FATAL_ERROR,
+ "LINK_LIBRARIES specified but there is no content");
+ return -1;
+ }
+ extraArgs++;
+ ++i;
+ useOldLinkLibs = false;
+ for ( ; i < argv.size() && argv[i] != "CMAKE_FLAGS"
+ && argv[i] != "COMPILE_DEFINITIONS" && argv[i] != "OUTPUT_VARIABLE";
+ ++i)
+ {
+ extraArgs++;
+ libsToLink += "\"" + cmSystemTools::TrimWhitespace(argv[i]) + "\" ";
+ cmTarget *tgt = this->Makefile->FindTargetToUse(argv[i].c_str());
+ if (!tgt)
+ {
+ continue;
+ }
+ switch(tgt->GetType())
+ {
+ case cmTarget::SHARED_LIBRARY:
+ case cmTarget::STATIC_LIBRARY:
+ case cmTarget::UNKNOWN_LIBRARY:
+ break;
+ case cmTarget::EXECUTABLE:
+ if (tgt->IsExecutableWithExports())
+ {
+ break;
+ }
+ default:
+ this->Makefile->IssueMessage(cmake::FATAL_ERROR,
+ "Only libraries may be used as try_compile IMPORTED "
+ "LINK_LIBRARIES. Got " + std::string(tgt->GetName()) + " of "
+ "type " + tgt->GetTargetTypeName(tgt->GetType()) + ".");
+ return -1;
+ }
+ if (!tgt->IsImported())
+ {
+ continue;
+ }
+ targets.push_back(tgt);
+ }
+ break;
+ }
+ }
+
// look for COPY_FILE
std::string copyFile;
for (i = 3; i < argv.size(); ++i)
@@ -247,6 +307,33 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
fprintf(fout, ")\n");
}
+ /* Use a random file name to avoid rapid creation and deletion
+ of the same executable name (some filesystems fail on that). */
+ sprintf(targetNameBuf, "cmTryCompileExec%u",
+ cmSystemTools::RandomSeed());
+ targetName = targetNameBuf;
+
+ if (!targets.empty())
+ {
+ std::string fname = "/" + std::string(targetName) + "Targets.cmake";
+ cmExportTryCompileFileGenerator tcfg;
+ tcfg.SetExportFile((this->BinaryDirectory + fname).c_str());
+ tcfg.SetExports(targets);
+ tcfg.SetConfig(this->Makefile->GetDefinition(
+ "CMAKE_TRY_COMPILE_CONFIGURATION"));
+
+ if(!tcfg.GenerateImportFile())
+ {
+ this->Makefile->IssueMessage(cmake::FATAL_ERROR,
+ "could not write export file.");
+ fclose(fout);
+ return -1;
+ }
+ fprintf(fout,
+ "\ninclude(\"${CMAKE_CURRENT_LIST_DIR}/%s\")\n\n",
+ fname.c_str());
+ }
+
/* for the TRY_COMPILEs we want to be able to specify the architecture.
So the user can set CMAKE_OSX_ARCHITECTURE to i386;ppc and then set
CMAKE_TRY_COMPILE_OSX_ARCHITECTURE first to i386 and then to ppc to
@@ -286,18 +373,22 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
fprintf(fout, "SET(CMAKE_POSITION_INDEPENDENT_CODE \"ON\")\n");
}
- /* Use a random file name to avoid rapid creation and deletion
- of the same executable name (some filesystems fail on that). */
- sprintf(targetNameBuf, "cmTryCompileExec%u",
- cmSystemTools::RandomSeed());
- targetName = targetNameBuf;
-
/* Put the executable at a known location (for COPY_FILE). */
fprintf(fout, "SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY \"%s\")\n",
this->BinaryDirectory.c_str());
/* Create the actual executable. */
fprintf(fout, "ADD_EXECUTABLE(%s \"%s\")\n", targetName, source.c_str());
- fprintf(fout, "TARGET_LINK_LIBRARIES(%s ${LINK_LIBRARIES})\n",targetName);
+ if (useOldLinkLibs)
+ {
+ fprintf(fout,
+ "TARGET_LINK_LIBRARIES(%s ${LINK_LIBRARIES})\n",targetName);
+ }
+ else
+ {
+ fprintf(fout, "TARGET_LINK_LIBRARIES(%s %s)\n",
+ targetName,
+ libsToLink.c_str());
+ }
fclose(fout);
projectName = "CMAKE_TRY_COMPILE";
// if the source is not in CMakeTmp