Revision: 61551
http://sourceforge.net/p/brlcad/code/61551
Author: starseeker
Date: 2014-07-02 19:29:49 +0000 (Wed, 02 Jul 2014)
Log Message:
-----------
Perform what should be a fairly major upgrade to the capabilities of
BRLCAD_FUNCTION_EXISTS - can now specify required libraries, include dirs,
definitions and compile flags, as well as provide one or more snippits of
source code which must be compiled successfully for the macro to report a
success.
Modified Paths:
--------------
brlcad/trunk/CMakeLists.txt
brlcad/trunk/misc/CMake/BRLCAD_CheckFunctions.cmake
Modified: brlcad/trunk/CMakeLists.txt
===================================================================
--- brlcad/trunk/CMakeLists.txt 2014-07-02 19:28:40 UTC (rev 61550)
+++ brlcad/trunk/CMakeLists.txt 2014-07-02 19:29:49 UTC (rev 61551)
@@ -1987,33 +1987,23 @@
endif("${HAVE_PROGRAM_INVOCATION_NAME}" MATCHES
"^${HAVE_PROGRAM_INVOCATION_NAME}$")
# test for lrint
-set(CMAKE_REQUIRED_LIBRARIES_BAK ${CMAKE_REQUIRED_LIBRARIES})
-set(CMAKE_REQUIRED_LIBRARIES ${M_LIBRARY})
-BRLCAD_FUNCTION_EXISTS(lrint HAVE_LRINT)
-if("${HAVE_LRINT}" MATCHES "^${HAVE_LRINT}$")
- check_c_source_compiles("#include <math.h>\nint main() {return
lrint(3.14);}" HAVE_LRINT_COMPILE)
- if(HAVE_LRINT_COMPILE)
- CONFIG_H_APPEND(BRLCAD "#cmakedefine HAVE_LRINT 1\n")
- else(HAVE_LRINT_COMPILE)
+set(lrint_test "#include <math.h>\nint main() {return lrint(3.14);}")
+# this second test is mainly a test for BRLCAD_FUNCTION_EXISTS - can go away
+# once behavior of the macro is solid
+set(lrint_test_negative "#include <math.h>\nint main() {return lrint(-1);}")
+BRLCAD_FUNCTION_EXISTS(lrint HAVE_LRINT
+ COMPILE_TEST_SRCS lrint_test lrint_test_negative
+ REQUIRED_LIBS ${M_LIBRARY})
+if(NOT HAVE_LRINT AND NOT "${HAVE_LRINT_WORKING_MACRO}" MATCHES
"^${HAVE_LRINT_WORKING_MACRO}$")
check_c_source_compiles("#include
\"${CMAKE_CURRENT_SOURCE_DIR}/misc/CMake/test_srcs/lrint_macro.h\"\n#include
<math.h>\nint main() {return lrint(3.14);}" HAVE_WORKING_LRINT_MACRO)
if(HAVE_WORKING_LRINT_MACRO)
CONFIG_H_APPEND(BRLCAD "#cmakedefine HAVE_WORKING_LRINT_MACRO 1\n")
endif(HAVE_WORKING_LRINT_MACRO)
- endif(HAVE_LRINT_COMPILE)
-endif("${HAVE_LRINT}" MATCHES "^${HAVE_LRINT}$")
-set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES_BAK})
+endif(NOT HAVE_LRINT AND NOT "${HAVE_LRINT_WORKING_MACRO}" MATCHES
"^${HAVE_LRINT_WORKING_MACRO}$")
# test for tgamma
-BRLCAD_FUNCTION_EXISTS(tgamma HAVE_TGAMMA)
-if("${HAVE_TGAMMA}" MATCHES "^${HAVE_TGAMMA}$")
- set(CMAKE_REQUIRED_LIBRARIES_BAK ${CMAKE_REQUIRED_LIBRARIES})
- set(CMAKE_REQUIRED_LIBRARIES ${M_LIBRARY})
- check_c_source_compiles("#include <math.h>\nint main() {double tga =
tgamma(3.14); return 0;}" HAVE_TGAMMA)
- if(HAVE_TGAMMA)
- CONFIG_H_APPEND(BRLCAD "#cmakedefine HAVE_TGAMMA 1\n")
- endif(HAVE_TGAMMA)
- set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES_BAK})
-endif("${HAVE_TGAMMA}" MATCHES "^${HAVE_TGAMMA}$")
+set(tgamma_test "#include <math.h>\nint main() {double tga = tgamma(3.14);
return 0;}")
+BRLCAD_FUNCTION_EXISTS(tgamma HAVE_TGAMMA COMPILE_TEST_SRCS tgamma_test
REQUIRED_LIBS ${M_LIBRARY})
#-----------------------------------------------------------------------
# check C99 and POSIX 200112L missing functions with a more
Modified: brlcad/trunk/misc/CMake/BRLCAD_CheckFunctions.cmake
===================================================================
--- brlcad/trunk/misc/CMake/BRLCAD_CheckFunctions.cmake 2014-07-02 19:28:40 UTC
(rev 61550)
+++ brlcad/trunk/misc/CMake/BRLCAD_CheckFunctions.cmake 2014-07-02 19:29:49 UTC
(rev 61551)
@@ -36,6 +36,7 @@
# Automate putting variables from tests into a config.h.in file,
# and otherwise wrap check macros in extra logic as needed
+include(CMakeParseArguments)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckIncludeFiles)
@@ -51,13 +52,83 @@
# HAVE_* define to config header.
###
macro(BRLCAD_FUNCTION_EXISTS function var)
- set(CMAKE_C_FLAGS_TMP "${CMAKE_C_FLAGS}")
- set(CMAKE_C_FLAGS "")
- CHECK_FUNCTION_EXISTS(${function} ${var})
- if(CONFIG_H_FILE AND ${var})
- CONFIG_H_APPEND(BRLCAD "#cmakedefine ${var} 1\n")
- endif(CONFIG_H_FILE AND ${var})
- set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS_TMP}")
+ if("${var}" MATCHES "^${var}$")
+ set(CMAKE_C_FLAGS_TMP "${CMAKE_C_FLAGS}")
+ set(CMAKE_C_FLAGS "")
+ if(${ARGC} GREATER 2)
+ # Parse extra arguments
+ CMAKE_PARSE_ARGUMENTS(${var} "" ""
"COMPILE_TEST_SRCS;REQUIRED_LIBS;REQUIRED_DEFS;REQUIRED_FLAGS;REQUIRED_DIRS"
${ARGN})
+ if(NOT "${${var}_REQUIRED_LIBS}" STREQUAL "")
+ set(CMAKE_REQUIRED_LIBRARIES_BAK ${CMAKE_REQUIRED_LIBRARIES})
+ set(CMAKE_REQUIRED_LIBRARIES ${${var}_REQUIRED_LIBS})
+ endif(NOT "${${var}_REQUIRED_LIBS}" STREQUAL "")
+
+ if(NOT "${${var}_REQUIRED_FLAGS}" STREQUAL "")
+ set(CMAKE_REQUIRED_FLAGS_BAK ${CMAKE_REQUIRED_FLAGS})
+ set(CMAKE_REQUIRED_FLAGS ${${var}_REQUIRED_FLAGS})
+ endif(NOT "${${var}_REQUIRED_FLAGS}" STREQUAL "")
+
+ if(NOT "${${var}_REQUIRED_DIRS}" STREQUAL "")
+ set(CMAKE_REQUIRED_INCLUDES_BAK ${CMAKE_REQUIRED_INCLUDES})
+ set(CMAKE_REQUIRED_INCLUDES ${${var}_REQUIRED_DIRS})
+ endif(NOT "${${var}_REQUIRED_DIRS}" STREQUAL "")
+
+ if(NOT "${${var}_REQUIRED_DEFS}" STREQUAL "")
+ set(CMAKE_REQUIRED_DEFINITIONS_BAK ${CMAKE_REQUIRED_DEFINITIONS})
+ set(CMAKE_REQUIRED_DEFINITIONS ${${var}_REQUIRED_DEFS})
+ endif(NOT "${${var}_REQUIRED_DEFS}" STREQUAL "")
+ endif(${ARGC} GREATER 2)
+
+ CHECK_FUNCTION_EXISTS(${function} ${var}_EXISTS)
+ if(${var}_EXISTS)
+ if(NOT "${${var}_COMPILE_TEST_SRCS}" STREQUAL "")
+ set(${var}_COMPILE 1)
+ foreach(test_src ${${var}_COMPILE_TEST_SRCS})
+ check_c_source_compiles("${${test_src}}" ${var}_${test_src}_COMPILE)
+ if(NOT ${var}_${test_src}_COMPILE)
+ set(${var}_COMPILE 0)
+ endif(NOT ${var}_${test_src}_COMPILE)
+ endforeach(test_src ${${var}_COMPILE_TEST_SRCS})
+ if(${var}_COMPILE)
+ CONFIG_H_APPEND(BRLCAD "#cmakedefine ${var} 1\n")
+ set(${var} 1 CACHE INTERNAL "Have function ${function}")
+ else(${var}_COMPILE)
+ set(${var} "" CACHE INTERNAL "Function ${function} found but did not
build.")
+ endif(${var}_COMPILE)
+ else(NOT "${${var}_COMPILE_TEST_SRCS}" STREQUAL "")
+ set(${var} 1 CACHE INTERNAL "Have function ${function}")
+ endif(NOT "${${var}_COMPILE_TEST_SRCS}" STREQUAL "")
+ else(${var}_EXISTS)
+ set(${var} "" CACHE INTERNAL "Have function ${function}")
+ endif(${var}_EXISTS)
+
+ if(CONFIG_H_FILE AND ${var})
+ CONFIG_H_APPEND(BRLCAD "#cmakedefine ${var} 1\n")
+ endif(CONFIG_H_FILE AND ${var})
+
+ # Restore required vars
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS_TMP}")
+
+ if(${ARGC} GREATER 2)
+ if (${${var}_REQUIRED_LIBS})
+ set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES_BAK})
+ endif (${${var}_REQUIRED_LIBS})
+
+ if (${${var}_REQUIRED_FLAGS})
+ set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_BAK})
+ endif (${${var}_REQUIRED_FLAGS})
+
+ if (${${var}_REQUIRED_INCLUDES})
+ set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_BAK})
+ endif (${${var}_REQUIRED_INCLUDES})
+ endif(${ARGC} GREATER 2)
+
+ # We used this variable for CHECK_FUNCTION_EXISTS to allow
+ # the additional specific src compile test as an option - ${var}
+ # is where the final result is cached.
+ unset(${var}_EXISTS CACHE)
+
+ endif("${var}" MATCHES "^${var}$")
endmacro(BRLCAD_FUNCTION_EXISTS)
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