Build SQLite including the platform header for INTEGRITY.

The platform header defines geteuid(), which is necessary for the SQLite
library. The common platform header is also modified to handle being
included from C, and resolves a typo on the way.

Change-Id: I8ace8a11ceac0f541b9c9b0d8112609579224884
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

mkspecs/common/integrity/qplatformdefs.h

@@ -75,7 +75,7 @@
 // INTEGRITY doesn't have getpagesize()
 inline int getpagesize()
 {
-    return ::sysconf(_SC_PAGESIZE);
+    return sysconf(_SC_PAGESIZE);
 }
 
 // geteuid() is only available with multi-process posix, but we do not want
@@ -97,4 +97,4 @@ inline uid_t getuid(void)
 #define QT_OPEN_LARGEFILE 0
 #define PATH_MAX 1024
 
-#endif // Q_QNX_PLATFORMDEFS_H
+#endif // Q_INTEGRITY_PLATFORMDEFS_H

src/3rdparty/sqlite.pri

@@ -5,6 +5,7 @@ contains(QT_CONFIG, posix_fallocate):DEFINES += HAVE_POSIX_FALLOCATE=1
 winrt: DEFINES += SQLITE_OS_WINRT
 winphone: DEFINES += SQLITE_WIN32_FILEMAPPING_API=1
 qnx: DEFINES += _QNX_SOURCE
+integrity: QMAKE_CFLAGS += -include qplatformdefs.h
 INCLUDEPATH +=  $$PWD/sqlite
 SOURCES +=      $$PWD/sqlite/sqlite3.c