X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/0853a0e21ddf334c2e7890a33fbdc3a281d30b0b..558cfc9fc06c8d1a7206b5995d3736cc11319529:/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 144bea937e..c22fc86ed1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -186,6 +186,7 @@ include_directories(${INCLUDES})
 include(${CMAKE_HOME_DIRECTORY}/tools/cmake/Option.cmake)
 
 ### Determine the assembly flavor that we need today
+set(HAVE_RAW_CONTEXTS 0)
 include(CMakeDetermineSystem)
 IF(CMAKE_SYSTEM_PROCESSOR MATCHES ".86|AMD64|amd64")
   IF(${ARCH_32_BITS})
@@ -198,7 +199,7 @@ IF(CMAKE_SYSTEM_PROCESSOR MATCHES ".86|AMD64|amd64")
     set(PROCESSOR_x86_64 1)
   ENDIF()
   if (WIN32)
-    message(STATUS "Disable fast raw contextes on Windows.")
+    message(STATUS "Disable fast raw contexts on Windows.")
   else()
     set(HAVE_RAW_CONTEXTS 1)
   endif()
@@ -287,15 +288,6 @@ else()
   set(CMAKE_REQUIRED_DEFINITIONS "-D_GNU_SOURCE")
 endif()
 
-SET(HAVE_VALGRIND_H 0)
-SET(HAVE_UNISTD_H 0)
-SET(HAVE_EXECINFO_H 0)
-SET(HAVE_SIGNAL_H 0)
-SET(HAVE_SYS_PARAM_H 0)
-SET(HAVE_SYS_SYSCTL_H 0)
-SET(HAVE_UCONTEXT_H 0)
-SET(HAVE_FUTEX_H 0)
-
 CHECK_INCLUDE_FILE("valgrind/valgrind.h" HAVE_VALGRIND_H)
 CHECK_INCLUDE_FILE("unistd.h" HAVE_UNISTD_H)
 CHECK_INCLUDE_FILE("execinfo.h" HAVE_EXECINFO_H)
@@ -305,14 +297,6 @@ CHECK_INCLUDE_FILE("sys/sysctl.h" HAVE_SYS_SYSCTL_H)
 CHECK_INCLUDE_FILE("ucontext.h" HAVE_UCONTEXT_H)
 CHECK_INCLUDE_FILE("linux/futex.h" HAVE_FUTEX_H)
 
-SET(HAVE_GETTIMEOFDAY 0)
-SET(HAVE_NANOSLEEP 0)
-SET(HAVE_GETDTABLESIZE 0)
-SET(HAVE_SYSCONF 0)
-SET(HAVE_POPEN 0)
-SET(HAVE_PROCESS_VM_READV 0)
-SET(HAVE_MMAP 0)
-
 CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
 CHECK_FUNCTION_EXISTS(nanosleep HAVE_NANOSLEEP)
 CHECK_FUNCTION_EXISTS(getdtablesize HAVE_GETDTABLESIZE)
@@ -321,16 +305,14 @@ CHECK_FUNCTION_EXISTS(popen HAVE_POPEN)
 CHECK_FUNCTION_EXISTS(process_vm_readv HAVE_PROCESS_VM_READV)
 CHECK_FUNCTION_EXISTS(mmap HAVE_MMAP)
 
-SET(HAVE_VASPRINTF 0)
 CHECK_SYMBOL_EXISTS(vasprintf stdio.h HAVE_VASPRINTF)
-if(MINGW) 
+if(MINGW)
   # The detection of vasprintf fails on MinGW, assumingly because it's
   # defined as an inline function in stdio.h instead of a regular
   # function. So force the result to be 1 despite of the test.
   set(HAVE_VASPRINTF 1)
 endif()
 
-
 #Check if __thread is defined
 execute_process(
   COMMAND "${CMAKE_C_COMPILER} ${CMAKE_HOME_DIRECTORY}/tools/cmake/test_prog/prog_thread_storage.c -o testprog"
@@ -649,6 +631,24 @@ endif()
 
 ### Generate the required headers and scripts
 #############################################
+
+# gcc makes no difference between "#define HAVE_FOOBAR" and "#define HAVE_FOOBAR 0" by default, 
+# but this too error prone. If you forget to include the config.h, you get weird segfaults.
+# If you include it everywhere, everything gets recompiled everytime.
+# So we include only where needed, and compile with -Wundef to notice the missing includes.
+# But cmake sometimes defines to the empty definition (#define HAVE_VALGRIND_H).
+# So we have to make sure that everything got a decent value before generating the files.
+foreach(var HAVE_EXECINFO_H HAVE_FUTEX_H HAVE_GETDTABLESIZE HAVE_GETTIMEOFDAY HAVE_MMAP
+            HAVE_NANOSLEEP  HAVE_POPEN HAVE_POSIX_GETTIME HAVE_PROCESS_VM_READV HAVE_SIGNAL_H
+	    HAVE_SYS_PARAM_H HAVE_SYS_SYSCTL_H HAVE_SYSCONF HAVE_UCONTEXT_H HAVE_UNISTD_H
+	    HAVE_VALGRIND_H HAVE_VASPRINTF)
+  if(${var})
+    set(${var} 1)
+  else()
+    set(${var} 0)
+  endif()
+endforeach()
+
 # Avoid triggering a (full) rebuild by touching the files if they did not really change
 configure_file("${CMAKE_HOME_DIRECTORY}/tools/cmake/src/internal_config.h.in" "${CMAKE_BINARY_DIR}/src/internal_config.h.generated"    @ONLY IMMEDIATE)
 configure_file("${CMAKE_HOME_DIRECTORY}/include/simgrid_config.h.in"          "${CMAKE_BINARY_DIR}/include/simgrid_config.h.generated" @ONLY IMMEDIATE)
@@ -894,7 +894,7 @@ message("##########################################")
 message("#### Content of src/internal_config.h ####")
 message("##########################################")
 file(STRINGS ${CMAKE_CURRENT_BINARY_DIR}/src/internal_config.h config_output)
-LIST(REMOVE_AT config_output 0 1 2 3 4 5 6 7 8) # Pass the file header
+LIST(REMOVE_AT config_output 0 1 2 3 4 5 6 7 8 9 10) # Pass the file header
 foreach(line ${config_output})
   message("   ${line}")
 endforeach()