diff options
-rw-r--r-- | Source/cmTryCompileCommand.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/Source/cmTryCompileCommand.h b/Source/cmTryCompileCommand.h index f2353d8..b857da6 100644 --- a/Source/cmTryCompileCommand.h +++ b/Source/cmTryCompileCommand.h @@ -85,11 +85,20 @@ public: " <COMPILE_DEFINITIONS <flags> ...>\n" " <OUTPUT_VARIABLE var>)\n" "Try compiling a srcfile. Return the success or failure in RESULT_VAR. " - "CMAKE_FLAGS can be used to pass -DVAR:TYPE=VALUE flags to cmake. The " + "CMAKE_FLAGS can be used to pass -DVAR:TYPE=VALUE flags to cmake. 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. If srcfile is specified the files in bindir/CMakeTmp " "are cleaned automatically. If OUTPUT_VARIABLE is specified, then the " - "output from the build process is stored in the given variable."; + "output from the build process is stored in the given variable. " + "TRY_COMPILE creates a CMakeList.txt " + "file on the fly, and in that file it looks like this: " + " ADD_DEFINITIONS( <expanded COMPILE_DEFINITIONS from calling cmake>" + " INCLUDE_DIRECTORIES(${INCLUDE_DIRECTORIES})" + " LINK_DIRECTORIES(${LINK_DIRECTORIES})" + " ADD_EXECUTABLE(cmTryCompileExec sources)" + " TARGET_LINK_LIBRARIES(cmTryCompileExec ${LINK_LIBRARIES})"; } cmTypeMacro(cmTryCompileCommand, cmCommand); |