dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
+AC_DEFUN([_PANDORA_TRY_GCC],[
+ pushdef([Name],[translit([$1],[./-], [___])])
+ pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
+ [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+ AC_CHECK_PROGS([CC]NAME,[gcc$1])
+ AC_CHECK_PROGS([CXX]NAME,[g++$1])
+ AS_IF([test "x${CC]NAME[}" != "x" -a "x${ac_cv_env_CC_set}" = "x"],
+ [CC="${CC]NAME[}"])
+ AS_IF([test "x${CXX]NAME[}" != "x" -a "x${ac_cv_env_CCX_set}" = "x"],
+ [CXX="${CXX]NAME[}"])
+ AS_IF([test "x${CC]NAME[}" != "x" -a "x${ac_cv_env_CPP_set}" = "x"],
+ [CPP="${CC]NAME[} -E"])
+])
+
dnl If the user is on a Mac and didn't ask for a specific compiler
dnl You're gonna get 4.2.
AC_DEFUN([PANDORA_MAC_GCC42],
AS_IF([test "$host_vendor" = "apple" -a "x${ac_cv_env_CC_set}" = "x"],[
host_os_version=`echo ${host_os} | perl -ple 's/^\D+//g;s,\..*,,'`
AS_IF([test "$host_os_version" -lt 10],[
- AS_IF([test -f /usr/bin/gcc-4.2],
- [
- CPP="/usr/bin/gcc-4.2 -E"
- CC=/usr/bin/gcc-4.2
- CXX=/usr/bin/g++-4.2
- ])
+ _PANDORA_TRY_GCC([-4.2])
])
])
])
])
+dnl If the user is on CentOS or RHEL and didn't ask for a specific compiler
+dnl You're gonna get 4.4 (forward compatible with 4.5)
+AC_DEFUN([PANDORA_RH_GCC44],
+ [AS_IF([test "$GCC" = "yes"],[
+ AS_IF([test "x${ac_cv_env_CC_set}" = "x"],[
+ _PANDORA_TRY_GCC([44])
+ _PANDORA_TRY_GCC([45])
+ ])
+ ])
+])
+
dnl
AC_DEFUN([PANDORA_ENSURE_GCC_VERSION],[
AC_REQUIRE([PANDORA_MAC_GCC42])
- AC_CACHE_CHECK([if GCC is recent enough], [ac_cv_gcc_recent],
- [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#if !defined(__GNUC__) || (__GNUC__ < 4) || ((__GNUC__ >= 4) && (__GNUC_MINOR__ < 1))
+ AC_REQUIRE([PANDORA_RH_GCC44])
+ AS_IF([test "$GCC" = "yes"],[
+ AC_CACHE_CHECK([if GCC is recent enough], [ac_cv_gcc_recent],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#if !defined(__GNUC__) || (__GNUC__ < 4) || ((__GNUC__ >= 4) && (__GNUC_MINOR__ < 2))
# error GCC is Too Old!
#endif
- ]])],
- [ac_cv_gcc_recent=yes],
- [ac_cv_gcc_recent=no])])
- AS_IF([test "$ac_cv_gcc_recent" = "no" -a "$host_vendor" = "apple"],
- AC_MSG_ERROR([Your version of GCC is too old. At least version 4.2 is required on OSX. You may need to install a version of XCode >= 3.1.2]))
- AS_IF([test "$ac_cv_gcc_recent" = "no"],
- AC_MSG_ERROR([Your version of GCC is too old. At least version 4.1 is required]))
+ ]])],
+ [ac_cv_gcc_recent=yes],
+ [ac_cv_gcc_recent=no])])
+ AS_IF([test "$ac_cv_gcc_recent" = "no" -a "$host_vendor" = "apple"],
+ AC_MSG_ERROR([Your version of GCC is too old. At least version 4.2 is required on OSX. You may need to install a version of XCode >= 3.1.2]))
+ AS_IF([test "$ac_cv_gcc_recent" = "no"],
+ AC_MSG_ERROR([Your version of GCC is too old. At least version 4.2 is required. On RHEL/CentOS systems this is found in the gcc44 and gcc44-c++ packages.]))
+ ])
])