Precompile headers for MSVC.

CMakeLists.txt

@@ -133,6 +133,12 @@ SET_TARGET_PROPERTIES(git2 PROPERTIES VERSION ${LIBGIT2_VERSION_STRING})
 SET_TARGET_PROPERTIES(git2 PROPERTIES SOVERSION ${LIBGIT2_VERSION_MAJOR})
 CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/libgit2.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libgit2.pc @ONLY)
 
+IF (MSVC)
+   # Precompiled headers
+   SET_TARGET_PROPERTIES(git2 PROPERTIES COMPILE_FLAGS "/Yuprecompiled.h /FIprecompiled.h")
+   SET_SOURCE_FILES_PROPERTIES(src/win32/precompiled.c COMPILE_FLAGS "/Ycprecompiled.h")
+ENDIF ()
+
 # Install
 INSTALL(TARGETS git2
 	RUNTIME DESTINATION ${INSTALL_BIN}
@@ -165,6 +171,12 @@ IF (BUILD_CLAR)
 	)
 	ADD_EXECUTABLE(libgit2_clar ${SRC} ${CLAR_PATH}/clar_main.c ${SRC_TEST} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX})
 	TARGET_LINK_LIBRARIES(libgit2_clar ${CMAKE_THREAD_LIBS_INIT} ${SSL_LIBRARIES})
+
+        IF (MSVC)
+           # Precompiled headers
+           SET_TARGET_PROPERTIES(libgit2_clar PROPERTIES COMPILE_FLAGS "/Yuprecompiled.h /FIprecompiled.h")
+        ENDIF ()
+
 	IF (WIN32)
 		TARGET_LINK_LIBRARIES(libgit2_clar ws2_32)
 	ELSEIF (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")

src/win32/precompiled.c

+#include "precompiled.h"
\ No newline at end of file

src/win32/precompiled.h

+#include "git2.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <regex.h>
+
+#include <io.h>
+#include <direct.h>
+#ifdef GIT_THREADS
+ #include "win32/pthread.h"
+#endif