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Handle targets in the LINK_LIBRARIES of try_compile. 

Imported targets are re-exported so that they can be used by the
try_compile generated code with target_link_libraries.

This makes the use of the cmake_expand_imported_targets macro
obsolete. The macro is not able to expand the generator expressions
which may appear in the IMPORTED_LINK_INTERFACE_LIBRARIES content.
Instead it just sees them as 'not a target'.
This commit is contained in:
Stephen Kelly 2013-02-09 10:34:37 +01:00 committed by Brad King
parent 1c0597c25b
commit 236133e79e
15 changed files with 150 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Modules/CheckCSourceCompiles.cmake
View File

@ -24,7 +24,6 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_C_SOURCE_COMPILES SOURCE VAR)
@ -43,10 +42,8 @@ macro(CHECK_C_SOURCE_COMPILES SOURCE VAR)
set(MACRO_CHECK_FUNCTION_DEFINITIONS
"-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
endif()
@ -64,8 +61,8 @@ macro(CHECK_C_SOURCE_COMPILES SOURCE VAR)
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
"${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
"${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
OUTPUT_VARIABLE OUTPUT)

7
Modules/CheckCSourceRuns.cmake
View File

@ -24,7 +24,6 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_C_SOURCE_RUNS SOURCE VAR)
@ -32,10 +31,8 @@ macro(CHECK_C_SOURCE_RUNS SOURCE VAR)
set(MACRO_CHECK_FUNCTION_DEFINITIONS
"-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
endif()
@ -53,9 +50,9 @@ macro(CHECK_C_SOURCE_RUNS SOURCE VAR)
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
-DCMAKE_SKIP_RPATH:BOOL=${CMAKE_SKIP_RPATH}
"${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
"${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
COMPILE_OUTPUT_VARIABLE OUTPUT)
# if it did not compile make the return value fail code of 1

7
Modules/CheckCXXSourceCompiles.cmake
View File

@ -24,7 +24,6 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
@ -44,10 +43,8 @@ macro(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
set(MACRO_CHECK_FUNCTION_DEFINITIONS
"-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES)
endif()
@ -65,8 +62,8 @@ macro(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES}
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
"${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES}"
"${CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES}"
OUTPUT_VARIABLE OUTPUT)

7
Modules/CheckCXXSourceRuns.cmake
View File

@ -24,7 +24,6 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_CXX_SOURCE_RUNS SOURCE VAR)
@ -32,10 +31,8 @@ macro(CHECK_CXX_SOURCE_RUNS SOURCE VAR)
set(MACRO_CHECK_FUNCTION_DEFINITIONS
"-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES)
endif()
@ -53,9 +50,9 @@ macro(CHECK_CXX_SOURCE_RUNS SOURCE VAR)
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES}
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
-DCMAKE_SKIP_RPATH:BOOL=${CMAKE_SKIP_RPATH}
"${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES}"
"${CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES}"
COMPILE_OUTPUT_VARIABLE OUTPUT)

7
Modules/CheckFortranFunctionExists.cmake
View File

@ -22,17 +22,14 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE)
if(NOT DEFINED ${VARIABLE})
message(STATUS "Looking for Fortran ${FUNCTION}")
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
cmake_expand_imported_targets(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
endif()
@ -48,7 +45,7 @@ macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE)
try_compile(${VARIABLE}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f
CMAKE_FLAGS "${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}
OUTPUT_VARIABLE OUTPUT
)
# message(STATUS "${OUTPUT}")

7
Modules/CheckFunctionExists.cmake
View File

@ -27,7 +27,6 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
@ -36,10 +35,8 @@ macro(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
"-DCHECK_FUNCTION_EXISTS=${FUNCTION} ${CMAKE_REQUIRED_FLAGS}")
message(STATUS "Looking for ${FUNCTION}")
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
endif()
@ -53,8 +50,8 @@ macro(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
${CMAKE_BINARY_DIR}
${CMAKE_ROOT}/Modules/CheckFunctionExists.c
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
"${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
"${CHECK_FUNCTION_EXISTS_ADD_INCLUDES}"
OUTPUT_VARIABLE OUTPUT)
if(${VARIABLE})

7
Modules/CheckLibraryExists.cmake
View File

@ -26,7 +26,6 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_LIBRARY_EXISTS LIBRARY FUNCTION LOCATION VARIABLE)
@ -36,19 +35,17 @@ macro(CHECK_LIBRARY_EXISTS LIBRARY FUNCTION LOCATION VARIABLE)
message(STATUS "Looking for ${FUNCTION} in ${LIBRARY}")
set(CHECK_LIBRARY_EXISTS_LIBRARIES ${LIBRARY})
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_LIBRARY_EXISTS_LIBRARIES
${CHECK_LIBRARY_EXISTS_LIBRARIES} ${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES})
${CHECK_LIBRARY_EXISTS_LIBRARIES} ${CMAKE_REQUIRED_LIBRARIES})
endif()
try_compile(${VARIABLE}
${CMAKE_BINARY_DIR}
${CMAKE_ROOT}/Modules/CheckFunctionExists.c
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
LINK_LIBRARIES ${CHECK_LIBRARY_EXISTS_LIBRARIES}
CMAKE_FLAGS
-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_LIBRARY_EXISTS_DEFINITION}
-DLINK_DIRECTORIES:STRING=${LOCATION}
"-DLINK_LIBRARIES:STRING=${CHECK_LIBRARY_EXISTS_LIBRARIES}"
OUTPUT_VARIABLE OUTPUT)
if(${VARIABLE})

7
Modules/CheckPrototypeDefinition.cmake
View File

@ -34,7 +34,6 @@
# License text for the above reference.)
#
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
get_filename_component(__check_proto_def_dir "${CMAKE_CURRENT_LIST_FILE}" PATH)
@ -46,10 +45,8 @@ function(CHECK_PROTOTYPE_DEFINITION _FUNCTION _PROTOTYPE _RETURN _HEADER _VARIAB
set(CHECK_PROTOTYPE_DEFINITION_FLAGS ${CMAKE_REQUIRED_FLAGS})
if (CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
cmake_expand_imported_targets(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_PROTOTYPE_DEFINITION_LIBS
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_PROTOTYPE_DEFINITION_LIBS)
endif()
@ -78,8 +75,8 @@ function(CHECK_PROTOTYPE_DEFINITION _FUNCTION _PROTOTYPE _RETURN _HEADER _VARIAB
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckPrototypeDefinition.c
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
${CHECK_PROTOTYPE_DEFINITION_LIBS}
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${CHECK_PROTOTYPE_DEFINITION_FLAGS}
"${CHECK_PROTOTYPE_DEFINITION_LIBS}"
"${CMAKE_SYMBOL_EXISTS_INCLUDES}"
OUTPUT_VARIABLE OUTPUT)

7
Modules/CheckSymbolExists.cmake
View File

@ -35,7 +35,6 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE)
@ -47,10 +46,8 @@ macro(_CHECK_SYMBOL_EXISTS SOURCEFILE SYMBOL FILES VARIABLE)
set(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
set(MACRO_CHECK_SYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS})
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_SYMBOL_EXISTS_LIBS
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_SYMBOL_EXISTS_LIBS)
endif()
@ -75,9 +72,9 @@ macro(_CHECK_SYMBOL_EXISTS SOURCEFILE SYMBOL FILES VARIABLE)
${CMAKE_BINARY_DIR}
"${SOURCEFILE}"
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
${CHECK_SYMBOL_EXISTS_LIBS}
CMAKE_FLAGS
-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS}
"${CHECK_SYMBOL_EXISTS_LIBS}"
"${CMAKE_SYMBOL_EXISTS_INCLUDES}"
OUTPUT_VARIABLE OUTPUT)
if(${VARIABLE})

5
Modules/CheckTypeSize.cmake
View File

@ -52,7 +52,6 @@
# License text for the above reference.)
include(CheckIncludeFile)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
cmake_policy(PUSH)
cmake_minimum_required(VERSION 2.6 FATAL_ERROR)
@ -83,18 +82,16 @@ function(__check_type_size_impl type var map builtin)
# Perform the check.
# this one translates potentially used imported library targets to their files on disk
cmake_expand_imported_targets(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(src ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CheckTypeSize/${var}.c)
set(bin ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CheckTypeSize/${var}.bin)
configure_file(${__check_type_size_dir}/CheckTypeSize.c.in ${src} @ONLY)
try_compile(HAVE_${var} ${CMAKE_BINARY_DIR} ${src}
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}
CMAKE_FLAGS
"-DCOMPILE_DEFINITIONS:STRING=${CMAKE_REQUIRED_FLAGS}"
"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}"
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}"
OUTPUT_VARIABLE output
COPY_FILE ${bin}
)

7
Modules/CheckVariableExists.cmake
View File

@ -26,7 +26,6 @@
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
macro(CHECK_VARIABLE_EXISTS VAR VARIABLE)
@ -35,10 +34,8 @@ macro(CHECK_VARIABLE_EXISTS VAR VARIABLE)
"-DCHECK_VARIABLE_EXISTS=${VAR} ${CMAKE_REQUIRED_FLAGS}")
message(STATUS "Looking for ${VAR}")
if(CMAKE_REQUIRED_LIBRARIES)
# this one translates potentially used imported library targets to their files on disk
CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
set(CHECK_VARIABLE_EXISTS_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
else()
set(CHECK_VARIABLE_EXISTS_ADD_LIBRARIES)
endif()
@ -46,8 +43,8 @@ macro(CHECK_VARIABLE_EXISTS VAR VARIABLE)
${CMAKE_BINARY_DIR}
${CMAKE_ROOT}/Modules/CheckVariableExists.c
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
${CHECK_VARIABLE_EXISTS_ADD_LIBRARIES}
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_VARIABLE_DEFINITIONS}
"${CHECK_VARIABLE_EXISTS_ADD_LIBRARIES}"
OUTPUT_VARIABLE OUTPUT)
if(${VARIABLE})
set(${VARIABLE} 1 CACHE INTERNAL "Have variable ${VAR}")

108
Source/cmCoreTryCompile.cxx
View File

@ -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 += 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 +307,32 @@ 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.");
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 +372,22 @@ 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

8
Source/cmTryCompileCommand.h
View File

@ -67,6 +67,7 @@ public:
" try_compile(RESULT_VAR <bindir> <srcfile>\n"
" [CMAKE_FLAGS flags...]\n"
" [COMPILE_DEFINITIONS flags...]\n"
" [LINK_LIBRARIES libs...]\n"
" [OUTPUT_VARIABLE <var>]\n"
" [COPY_FILE <fileName>])\n"
"Try building a source file into an executable. "
@ -90,7 +91,12 @@ public:
"Some extra flags that can be included are, "
"INCLUDE_DIRECTORIES, LINK_DIRECTORIES, and LINK_LIBRARIES. "
"COMPILE_DEFINITIONS are -Ddefinition that will be passed to the "
"compile line. "
"compile line.\n"
"The srcfile signature also accepts a LINK_LIBRARIES argument which "
"may contain a list of libraries or IMPORTED targets which will be "
"linked to in the generated project. If LINK_LIBRARIES is specified "
"as a parameter to try_compile, then any LINK_LIBRARIES passed as "
"CMAKE_FLAGS will be ignored.\n"
"try_compile creates a CMakeList.txt "
"file on the fly that looks like this:\n"
" add_definitions( <expanded COMPILE_DEFINITIONS from calling "

2
Tests/ExportImport/Import/CMakeLists.txt
View File

@ -17,3 +17,5 @@ add_executable(imp_testTransExe1 imp_testTransExe1.c)
target_link_libraries(imp_testTransExe1 imp_lib1)
add_executable(imp_testTransExe1b imp_testTransExe1.c)
target_link_libraries(imp_testTransExe1b imp_lib1b)
add_subdirectory(try_compile)

21
Tests/ExportImport/Import/try_compile/CMakeLists.txt Normal file
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@ -0,0 +1,21 @@
cmake_minimum_required(VERSION 2.8)
find_package(testLibRequired 2.5 REQUIRED)
include(CheckCXXSourceCompiles)
set(CMAKE_REQUIRED_LIBRARIES Req::testSharedLibRequired)
check_cxx_source_compiles(
"
#include \"testSharedLibRequired.h\"
int main(int argc, char **argv)
{
TestSharedLibRequired req;
return req.foo();
}
" SHARED_LIB_REQUIRED)
if(NOT SHARED_LIB_REQUIRED)
message(SEND_ERROR "try_compile with IMPORTED targets failed!\n\n${OUTPUT}")
endif()