better fix for strcasestr detection

This commit is contained in:
Than Ngo 2009-05-04 21:46:55 +00:00
parent ecd6a3f02d
commit 3537acf5aa

View File

@ -0,0 +1,109 @@
--- kdelibs/cmake/modules/CheckCXXSymbolExists.cmake (Revision 0)
+++ kdelibs/cmake/modules/CheckCXXSymbolExists.cmake (Revision 963449)
@@ -0,0 +1,71 @@
+# - Check if the symbol exists in include files, in C++ mode
+# Forked off cmake's CheckSymbolExists.cmake
+# CHECK_CXX_SYMBOL_EXISTS(SYMBOL FILES VARIABLE)
+#
+# SYMBOL - symbol
+# FILES - include files to check
+# VARIABLE - variable to return result
+#
+# The following variables may be set before calling this macro to
+# modify the way the check is run:
+#
+# CMAKE_REQUIRED_FLAGS = string of compile command line flags
+# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
+# CMAKE_REQUIRED_INCLUDES = list of include directories
+# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
+
+MACRO(CHECK_CXX_SYMBOL_EXISTS SYMBOL FILES VARIABLE)
+ IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
+ SET(MACRO_CHECK_SYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS})
+ IF(CMAKE_REQUIRED_LIBRARIES)
+ SET(CHECK_SYMBOL_EXISTS_LIBS
+ "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+ ELSE(CMAKE_REQUIRED_LIBRARIES)
+ SET(CHECK_SYMBOL_EXISTS_LIBS)
+ ENDIF(CMAKE_REQUIRED_LIBRARIES)
+ IF(CMAKE_REQUIRED_INCLUDES)
+ SET(CMAKE_SYMBOL_EXISTS_INCLUDES
+ "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
+ ELSE(CMAKE_REQUIRED_INCLUDES)
+ SET(CMAKE_SYMBOL_EXISTS_INCLUDES)
+ ENDIF(CMAKE_REQUIRED_INCLUDES)
+ FOREACH(FILE ${FILES})
+ SET(CMAKE_CONFIGURABLE_FILE_CONTENT
+ "${CMAKE_CONFIGURABLE_FILE_CONTENT}#include <${FILE}>\n")
+ ENDFOREACH(FILE)
+ SET(CMAKE_CONFIGURABLE_FILE_CONTENT
+ "${CMAKE_CONFIGURABLE_FILE_CONTENT}\nvoid cmakeRequireSymbol(int dummy,...){(void)dummy;}\nint main()\n{\n#ifndef ${SYMBOL}\n cmakeRequireSymbol(0,&${SYMBOL});\n#endif\n return 0;\n}\n")
+
+ CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in"
+ "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx" @ONLY)
+
+ MESSAGE(STATUS "Looking for ${SYMBOL}")
+ TRY_COMPILE(${VARIABLE}
+ ${CMAKE_BINARY_DIR}
+ ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx
+ COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+ CMAKE_FLAGS
+ -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS}
+ "${CHECK_SYMBOL_EXISTS_LIBS}"
+ "${CMAKE_SYMBOL_EXISTS_INCLUDES}"
+ OUTPUT_VARIABLE OUTPUT)
+ IF(${VARIABLE})
+ MESSAGE(STATUS "Looking for ${SYMBOL} - found")
+ SET(${VARIABLE} 1 CACHE INTERNAL "Have symbol ${SYMBOL}")
+ FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+ "Determining if the ${SYMBOL} "
+ "exist passed with the following output:\n"
+ "${OUTPUT}\nFile ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx:\n"
+ "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
+ ELSE(${VARIABLE})
+ MESSAGE(STATUS "Looking for ${SYMBOL} - not found.")
+ SET(${VARIABLE} "" CACHE INTERNAL "Have symbol ${SYMBOL}")
+ FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+ "Determining if the ${SYMBOL} "
+ "exist failed with the following output:\n"
+ "${OUTPUT}\nFile ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx:\n"
+ "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
+ ENDIF(${VARIABLE})
+ ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ENDMACRO(CHECK_CXX_SYMBOL_EXISTS)
--- kdelibs/ConfigureChecks.cmake (Revision 963448)
+++ kdelibs/ConfigureChecks.cmake (Revision 963449)
@@ -6,6 +6,7 @@
include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckSymbolExists)
+include(CheckCXXSymbolExists)
include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckPrototypeExists)
@@ -230,7 +231,15 @@
check_function_exists(random HAVE_RANDOM) # kdecore/fakes.c
check_function_exists(strlcpy HAVE_STRLCPY) # kdecore/fakes.c
check_function_exists(strlcat HAVE_STRLCAT) # kdecore/fakes.c
-check_function_exists(strcasestr HAVE_STRCASESTR) # kdecore/fakes.c
+check_cxx_symbol_exists(__CORRECT_ISO_CPP_STRING_H_PROTO "string.h" HAVE_STRCASESTR_OVERLOAD) # glibc-2.9 strangeness
+if (HAVE_STRCASESTR_OVERLOAD)
+ message(STATUS "string.h defines __CORRECT_ISO_CPP_STRING_H_PROTO")
+ set(HAVE_STRCASESTR 1)
+ set(HAVE_STRCASESTR_PROTO 1)
+else()
+ check_function_exists(strcasestr HAVE_STRCASESTR) # kdecore/fakes.c
+ check_prototype_exists(strcasestr string.h HAVE_STRCASESTR_PROTO)
+endif()
check_function_exists(setenv HAVE_SETENV) # kdecore/fakes.c
check_function_exists(seteuid HAVE_SETEUID) # kdecore/fakes.c
check_function_exists(setmntent HAVE_SETMNTENT) # solid, kio, kdecore
@@ -243,7 +252,6 @@
check_prototype_exists(mkdtemp "stdlib.h;unistd.h" HAVE_MKDTEMP_PROTO)
check_prototype_exists(mkstemp "stdlib.h;unistd.h" HAVE_MKSTEMP_PROTO)
check_prototype_exists(strlcat string.h HAVE_STRLCAT_PROTO)
-check_prototype_exists(strcasestr string.h HAVE_STRCASESTR_PROTO)
check_prototype_exists(strlcpy string.h HAVE_STRLCPY_PROTO)
check_prototype_exists(random stdlib.h HAVE_RANDOM_PROTO)
check_prototype_exists(res_init "sys/types.h;netinet/in.h;arpa/nameser.h;resolv.h" HAVE_RES_INIT_PROTO)