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Diffstat (limited to 'gnulib-local/m4/alloca.m4')
| -rw-r--r-- | gnulib-local/m4/alloca.m4 | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gnulib-local/m4/alloca.m4 b/gnulib-local/m4/alloca.m4 new file mode 100644 index 0000000..58a61f8 --- /dev/null +++ b/gnulib-local/m4/alloca.m4 @@ -0,0 +1,36 @@ +# alloca.m4 serial 4 (gettext-0.18.2) +dnl Copyright (C) 2002-2003, 2006, 2011 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. + +AC_DEFUN([gl_FUNC_ALLOCA], +[ + dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57. + AC_REQUIRE([AC_PROG_CPP]) + AC_REQUIRE([AC_PROG_EGREP]) + + AC_REQUIRE([AC_FUNC_ALLOCA]) + if test $ac_cv_func_alloca_works = no; then + gl_PREREQ_ALLOCA + fi + + # Define an additional variable used in the Makefile substitution. + + AC_EGREP_CPP([Need own alloca], [ +#if defined __GNUC__ || defined _MSC_VER || !HAVE_ALLOCA_H + Need own alloca +#endif + ], + ALLOCA_H=alloca.h, + ALLOCA_H=) + AC_SUBST([ALLOCA_H]) + AM_CONDITIONAL([GL_GENERATE_ALLOCA_H], [test -n "$ALLOCA_H"]) +]) + +# Prerequisites of lib/alloca.c. +# STACK_DIRECTION is already handled by AC_FUNC_ALLOCA. +AC_DEFUN([gl_PREREQ_ALLOCA], [ + AC_CHECK_HEADERS_ONCE(stdlib.h string.h) + : +]) |