Begin port of qtbase to CMake

Done-by: Alexandru Croitor <alexandru.croitor@qt.io>
Done-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
Done-by: Kevin Funk <kevin.funk@kdab.com>
Done-by: Mikhail Svetkin <mikhail.svetkin@qt.io>
Done-by: Simon Hausmann <simon.hausmann@qt.io>
Done-by: Tobias Hunger <tobias.hunger@qt.io>
Done-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Done-by: Volker Krause <volker.krause@kdab.com>
Change-Id: Ida4f8bd190f9a4849a1af7b5b7981337a5df5310
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
Reviewed-by: Mikhail Svetkin <mikhail.svetkin@qt.io>

1 files changed, 36 insertions, 0 deletions

diff --git a/cmake/FindWrapDoubleConversion.cmake b/cmake/FindWrapDoubleConversion.cmake
new file mode 100644
index 0000000000..c93525af23
--- /dev/null
+++ b/cmake/FindWrapDoubleConversion.cmake
@@ -0,0 +1,36 @@
+include(CheckCXXSourceCompiles)
+
+check_cxx_source_compiles("
+#include <stdio.h>
+#include <locale.h>
+
+int main(int argc, char *argv[]) {
+    _locale_t invalidLocale = NULL;
+    double a = 3.14;
+    const char *format = \"invalid format\";
+    _sscanf_l(argv[0], invalidLocale, format, &a, &argc);
+    _snprintf_l(argv[0], 1, invalidLocale, format, a);
+}" HAVE__SPRINTF_L)
+
+check_cxx_source_compiles("
+#include <stdio.h>
+#include <xlocale.h>
+
+int main(int argc, char *argv[]) {
+    locale_t invalidLocale = NULL;
+    double a = 3.14;
+    const char *format = \"invalid format\";
+    snprintf_l(argv[0], 1, invalidLocale, format, a);
+    sscanf_l(argv[0], invalidLocale, format, &a, &argc);
+    return 0;
+}" HAVE_SPRINTF_L)
+
+add_library(WrapDoubleConversion INTERFACE)
+if (NOT HAVE__SPRINTF_L AND NOT HAVE_SPRINTF_L)
+    find_package(double-conversion)
+    set_package_properties(double-conversion PROPERTIES TYPE REQUIRED)
+    target_link_libraries(WrapDoubleConversion INTERFACE double-conversion::double-conversion)
+endif()
+
+set(WrapDoubleConversion_FOUND 1)
+