Reduce raw string pointers usage.

* Change some functions to take `std::string` instead of
  `const char*` in the following classes: `cmMakeFile`, `cmake`,
  `cmCoreTryCompile`, `cmSystemTools`,  `cmState`, `cmLocalGenerator`
  and a few others.
* Greatly reduce using of `const char*` overloads for
  `cmSystemTools::MakeDirectory` and `cmSystemTools::RelativePath`.
* Remove many redundant `c_str()` conversions throughout the code.

1 files changed, 7 insertions, 7 deletions

diff --git a/Source/cmExportInstallFileGenerator.cxx b/Source/cmExportInstallFileGenerator.cxx
index 1979b15..954b561 100644
--- a/Source/cmExportInstallFileGenerator.cxx
+++ b/Source/cmExportInstallFileGenerator.cxx
@@ -185,12 +185,12 @@ void cmExportInstallFileGenerator::GenerateImportPrefix(std::ostream& os)
     os << "# Compute the installation prefix relative to this file.\n"
        << "get_filename_component(_IMPORT_PREFIX"
        << " \"${CMAKE_CURRENT_LIST_FILE}\" PATH)\n";
-    if (cmHasLiteralPrefix(absDestS.c_str(), "/lib/") ||
-        cmHasLiteralPrefix(absDestS.c_str(), "/lib64/") ||
-        cmHasLiteralPrefix(absDestS.c_str(), "/libx32/") ||
-        cmHasLiteralPrefix(absDestS.c_str(), "/usr/lib/") ||
-        cmHasLiteralPrefix(absDestS.c_str(), "/usr/lib64/") ||
-        cmHasLiteralPrefix(absDestS.c_str(), "/usr/libx32/")) {
+    if (cmHasLiteralPrefix(absDestS, "/lib/") ||
+        cmHasLiteralPrefix(absDestS, "/lib64/") ||
+        cmHasLiteralPrefix(absDestS, "/libx32/") ||
+        cmHasLiteralPrefix(absDestS, "/usr/lib/") ||
+        cmHasLiteralPrefix(absDestS, "/usr/lib64/") ||
+        cmHasLiteralPrefix(absDestS, "/usr/libx32/")) {
       // Handle "/usr move" symlinks created by some Linux distros.
       /* clang-format off */
       os <<
@@ -370,7 +370,7 @@ void cmExportInstallFileGenerator::SetImportLocationProperty(
   // Construct the installed location of the target.
   std::string dest = itgen->GetDestination(config);
   std::string value;
-  if (!cmSystemTools::FileIsFullPath(dest.c_str())) {
+  if (!cmSystemTools::FileIsFullPath(dest)) {
     // The target is installed relative to the installation prefix.
     value = "${_IMPORT_PREFIX}/";
   }