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-rw-r--r-- | m4/typeof.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/m4/typeof.m4 b/m4/typeof.m4 new file mode 100644 index 000000000..42cdd3723 --- /dev/null +++ b/m4/typeof.m4 @@ -0,0 +1,23 @@ +#serial 1 +dnl Copyright (C) 2005 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Jim Meyering. + +AC_DEFUN([gl_TYPEOF], +[AC_CACHE_CHECK([for __typeof__], gl_cv_typeof, + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], + [[ + int i; + __typeof__ i j; + ]])], + [gl_cv_typeof=yes], + [gl_cv_typeof=no]) + ]) + if test $gl_cv_typeof = no; then + AC_DEFINE(HAVE_TYPEOF, 1, + [Define to 1 if __typeof__ works with your compiler.]) + fi +]) |