PROJECT (INCLUDES)

# auto-generated header with sizeof magic
INCLUDE(CheckTypeSize)
CHECK_TYPE_SIZE(short SIZE_SHORT)
MATH(EXPR SHORTLESS ${SIZE_SHORT}-1)
CHECK_TYPE_SIZE(int SIZE_INT)
MATH(EXPR INTLESS ${SIZE_INT}-1)
CHECK_TYPE_SIZE(long SIZE_LONG)
MATH(EXPR LONGLESS ${SIZE_LONG}-1)
CHECK_TYPE_SIZE("long long" SIZE_LLONG)
MATH(EXPR LLONGLESS ${SIZE_LLONG}-1)
CHECK_TYPE_SIZE(float SIZE_FLOAT)
MATH(EXPR FLOATLESS ${SIZE_FLOAT}-1)
CHECK_TYPE_SIZE(double SIZE_DOUBLE)
MATH(EXPR DOUBLELESS ${SIZE_DOUBLE}-1)
CHECK_TYPE_SIZE("char*" SIZE_PTR)
MATH(EXPR PTRLESS ${SIZE_PTR}-1)
CONFIGURE_FILE( align.h.in align.h)
#SET_SOURCE_FILES_PROPERTIES(align.h PROPERTIES GENERATED 1)


TRY_COMPILE(VA_LIST_IS_ARRAY ${CMAKE_BINARY_DIR}  ${CMAKE_CURRENT_SOURCE_DIR}/test_VA_LIST_IS_ARRAY.c)
# invert the result, has the condition IFF compiler fails. There must be a simple way to say a=!b... but how?
IF(VA_LIST_IS_ARRAY) 
   SET(VA_LIST_IS_ARRAY FALSE)
else(VA_LIST_IS_ARRAY) 
   SET(VA_LIST_IS_ARRAY TRUE)
endif(VA_LIST_IS_ARRAY)

TRY_COMPILE(HAVE_MLOCKALL ${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/test_HAVE_MLOCKALL.c)

INCLUDE(TestBigEndian)
TEST_BIG_ENDIAN(WORDS_BIGENDIAN)

TRY_RUN(BITFIELDS_HTOL TEST_DUMMY ${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/test_BITFIELDS_HTOL.c)

FIND_FILE(HAVE_WAIT_H "wait.h")
FIND_FILE(HAVE_SYS_WAIT_H "sys/wait.h")
TRY_COMPILE(HAVE_UNION_WAIT ${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/test_UNION_WAIT.c )
# disabled, though the alternative works on cygwin and both headers are present
# there.
#IF(NOT HAVE_UNION_WAIT)
#	TRY_COMPILE(HAVE_UNION_WAIT ${CMAKE_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/test_SYS_UNION_WAIT.c )
#MESSAGE("syswait: ${HAVE_UNION_WAIT}")
#ENDIF(NOT HAVE_UNION_WAIT)

SET(HAVE_GETNAMEINFO true)
SET(HAVE_INET_NTOA true)
IF (WIN32) # workaround for cygwin 
SET(HAVE_GETNAMEINFO false)
SET(HAVE_INET_NTOA false)
ENDIF (WIN32) # workaround for cygwin 

##INCLUDE(CheckCSourceCompiles)
##SET(TESTSRC "
###include <sys/types.h>
##int main() { return sizeof(blksize_t); }
##")
##CHECK_C_SOURCE_COMPILES("${TESTSRC}" HAVE_NATIVE_BLKSIZE_T)
##IF(HAVE_NATIVE_BLKSIZE_T)
##   SET(HAVE_NATIVE_BLKSIZE_T "/* <sys/types.h> provides blksize_t*/")
##ELSE(HAVE_NATIVE_BLKSIZE_T)
##   SET(HAVE_NATIVE_BLKSIZE_T "
###define blksize_t long
##")
##ENDIF(HAVE_NATIVE_BLKSIZE_T)

CONFIGURE_FILE( xconfig.h.in xconfig.h)