2006-07-04 Roland Levillain <roland(a)lrde.epita.fr> Fix C++ compiler identification. * config/oln.m4 (AC_CXX_FLAGS): Check for the Intel C++ compiler before the GNU C++ compiler. Index: 10.227/config/oln.m4 --- 10.227/config/oln.m4 Fri, 30 Jun 2006 16:51:46 +0200 levill_r (oln/j/15_oln.m4 1.38.1.12 600) +++ 10.227(w)/config/oln.m4 Tue, 04 Jul 2006 11:33:53 +0200 levill_r (oln/j/15_oln.m4 1.38.1.12 600) @@ -465,15 +465,19 @@ # specifications. # This macro checks for the following compilers : +# - Intel C++ (icpc) # - GNU C++ (g++) # - Sun WorkShop C++ (Sun/CC) -# - Intel C++ (icc) # - Comeau C++ (como) # and sets the following autoconf variables: # CXXFLAGS_DEBUG # CXXFLAGS_STRICT # CXXFLAGS_STRICT_ERRORS # CXXFLAGS_OPTIMIZE +# +# The Intel C++ compiler is checked before the GNU C++ compiler, +# because our test for the latter recognizes the former as G++ (i.e., +# icpc defines __GNUC__). Perhaps we should use another test for G++. AC_DEFUN([AC_CXX_FLAGS], [dnl @@ -482,7 +486,10 @@ AC_CACHE_CHECK([for C++ compiler-specific extra flags], [ac_cv_cxx_style], [ac_cv_cxx_style=unknown - if test "x$ac_compiler_gnu" != xno; then + if $CXX -V 2>&1 | grep -i "Intel(R) C++">/dev/null 2>&1; + then + ac_cv_cxx_style=Intel + elif test "x$ac_compiler_gnu" != xno; then [case `$CXX --version` in *3.[2-9]* | \ *[4-9].* ) @@ -492,9 +499,6 @@ esac] elif $CXX -V 2>&1 | grep -i "WorkShop">/dev/null 2>&1; then ac_cv_cxx_style=Sun - elif $CXX -V 2>&1 | grep -i "Intel(R) C++">/dev/null 2>&1; - then - ac_cv_cxx_style=Intel else echo "int main() {}" >conftest.cc if $CXX --version conftest.cc 2>&1 \