From: Augustin Degomme <degomme@idpann.imag.fr>
Date: Mon, 17 Dec 2012 15:04:50 +0000 (+0100)
Subject: do not use f2c with 64 bits platforms which use old gcc (<4.5)
X-Git-Tag: v3_9_rc1~86^2~8
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/bdede27b55f4d7428f635ef8ade408247dcfae93?hp=de522691ae839e2dec4107a426f1a0d68848d22c

do not use f2c with 64 bits platforms which use old gcc (<4.5)
---

diff --git a/buildtools/Cmake/Modules/FindF2c.cmake b/buildtools/Cmake/Modules/FindF2c.cmake
index 81cffee36b..921132fc88 100644
--- a/buildtools/Cmake/Modules/FindF2c.cmake
+++ b/buildtools/Cmake/Modules/FindF2c.cmake
@@ -69,7 +69,16 @@ else()
     message("-- Fortran for smpi is not installed (http://www.netlib.org/f2c/).")
 endif()
 
+
+#Some old versions of 64 bits systems seem to have a different size between C and Fortran Datatypes
+#Deactivate F2C with these versions, in order to avoid breaking test cases in legacy systems (as Fedora 13)
+set(COMPILER_OK 1)
+if(PROCESSOR_x86_64 AND "${CMAKE_SYSTEM}" MATCHES "Linux" AND "4.5" STRGREATER ${COMPILER_C_VERSION_MAJOR_MINOR} )
+    set(COMPILER_OK 0)
+    message("Your C compiler is a bit old and Fortran support is quite problematic on 64 bit platforms, F2C has been deactivated")
+endif()
+
 set(SMPI_F2C 0)
-if(HAVE_F2C_H AND F2C_EXE AND HAVE_F2C_LIB)
+if(HAVE_F2C_H AND F2C_EXE AND HAVE_F2C_LIB AND COMPILER_OK)
   set(SMPI_F2C 1)
 endif()